//===-- X86TargetTransformInfo.cpp - X86 specific TTI pass ----------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// /// \file /// This file implements a TargetTransformInfo analysis pass specific to the /// X86 target machine. It uses the target's detailed information to provide /// more precise answers to certain TTI queries, while letting the target /// independent and default TTI implementations handle the rest. /// //===----------------------------------------------------------------------===// /// About Cost Model numbers used below it's necessary to say the following: /// the numbers correspond to some "generic" X86 CPU instead of usage of a /// specific CPU model. Usually the numbers correspond to the CPU where the /// feature first appeared. For example, if we do Subtarget.hasSSE42() in /// the lookups below the cost is based on Nehalem as that was the first CPU /// to support that feature level and thus has most likely the worst case cost, /// although we may discard an outlying worst cost from one CPU (e.g. Atom). /// /// Some examples of other technologies/CPUs: /// SSE 3 - Pentium4 / Athlon64 /// SSE 4.1 - Penryn /// SSE 4.2 - Nehalem / Silvermont /// AVX - Sandy Bridge / Jaguar / Bulldozer /// AVX2 - Haswell / Ryzen /// AVX-512 - Xeon Phi / Skylake /// /// And some examples of instruction target dependent costs (latency) /// divss sqrtss rsqrtss /// AMD K7 11-16 19 3 /// Piledriver 9-24 13-15 5 /// Jaguar 14 16 2 /// Pentium II,III 18 30 2 /// Nehalem 7-14 7-18 3 /// Haswell 10-13 11 5 /// /// Interpreting the 4 TargetCostKind types: /// TCK_RecipThroughput and TCK_Latency should try to match the worst case /// values reported by the CPU scheduler models (and llvm-mca). /// TCK_CodeSize should match the instruction count (e.g. divss = 1), NOT the /// actual encoding size of the instruction. /// TCK_SizeAndLatency should match the worst case micro-op counts reported by /// by the CPU scheduler models (and llvm-mca), to ensure that they are /// compatible with the MicroOpBufferSize and LoopMicroOpBufferSize values which are /// often used as the cost thresholds where TCK_SizeAndLatency is requested. //===----------------------------------------------------------------------===// #include "X86TargetTransformInfo.h" #include "llvm/Analysis/TargetTransformInfo.h" #include "llvm/CodeGen/BasicTTIImpl.h" #include "llvm/CodeGen/CostTable.h" #include "llvm/CodeGen/TargetLowering.h" #include "llvm/IR/InstIterator.h" #include "llvm/IR/IntrinsicInst.h" #include "llvm/Support/Debug.h" #include using namespace llvm; #define DEBUG_TYPE "x86tti" //===----------------------------------------------------------------------===// // // X86 cost model. // //===----------------------------------------------------------------------===// // Helper struct to store/access costs for each cost kind. // TODO: Move this to allow other targets to use it? struct CostKindCosts { unsigned RecipThroughputCost = ~0U; unsigned LatencyCost = ~0U; unsigned CodeSizeCost = ~0U; unsigned SizeAndLatencyCost = ~0U; std::optional operator[](TargetTransformInfo::TargetCostKind Kind) const { unsigned Cost = ~0U; switch (Kind) { case TargetTransformInfo::TCK_RecipThroughput: Cost = RecipThroughputCost; break; case TargetTransformInfo::TCK_Latency: Cost = LatencyCost; break; case TargetTransformInfo::TCK_CodeSize: Cost = CodeSizeCost; break; case TargetTransformInfo::TCK_SizeAndLatency: Cost = SizeAndLatencyCost; break; } if (Cost == ~0U) return std::nullopt; return Cost; } }; using CostKindTblEntry = CostTblEntryT; TargetTransformInfo::PopcntSupportKind X86TTIImpl::getPopcntSupport(unsigned TyWidth) { assert(isPowerOf2_32(TyWidth) && "Ty width must be power of 2"); // TODO: Currently the __builtin_popcount() implementation using SSE3 // instructions is inefficient. Once the problem is fixed, we should // call ST->hasSSE3() instead of ST->hasPOPCNT(). return ST->hasPOPCNT() ? TTI::PSK_FastHardware : TTI::PSK_Software; } std::optional X86TTIImpl::getCacheSize( TargetTransformInfo::CacheLevel Level) const { switch (Level) { case TargetTransformInfo::CacheLevel::L1D: // - Penryn // - Nehalem // - Westmere // - Sandy Bridge // - Ivy Bridge // - Haswell // - Broadwell // - Skylake // - Kabylake return 32 * 1024; // 32 KByte case TargetTransformInfo::CacheLevel::L2D: // - Penryn // - Nehalem // - Westmere // - Sandy Bridge // - Ivy Bridge // - Haswell // - Broadwell // - Skylake // - Kabylake return 256 * 1024; // 256 KByte } llvm_unreachable("Unknown TargetTransformInfo::CacheLevel"); } std::optional X86TTIImpl::getCacheAssociativity( TargetTransformInfo::CacheLevel Level) const { // - Penryn // - Nehalem // - Westmere // - Sandy Bridge // - Ivy Bridge // - Haswell // - Broadwell // - Skylake // - Kabylake switch (Level) { case TargetTransformInfo::CacheLevel::L1D: [[fallthrough]]; case TargetTransformInfo::CacheLevel::L2D: return 8; } llvm_unreachable("Unknown TargetTransformInfo::CacheLevel"); } unsigned X86TTIImpl::getNumberOfRegisters(unsigned ClassID) const { bool Vector = (ClassID == 1); if (Vector && !ST->hasSSE1()) return 0; if (ST->is64Bit()) { if (Vector && ST->hasAVX512()) return 32; return 16; } return 8; } TypeSize X86TTIImpl::getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const { unsigned PreferVectorWidth = ST->getPreferVectorWidth(); switch (K) { case TargetTransformInfo::RGK_Scalar: return TypeSize::getFixed(ST->is64Bit() ? 64 : 32); case TargetTransformInfo::RGK_FixedWidthVector: if (ST->hasAVX512() && ST->hasEVEX512() && PreferVectorWidth >= 512) return TypeSize::getFixed(512); if (ST->hasAVX() && PreferVectorWidth >= 256) return TypeSize::getFixed(256); if (ST->hasSSE1() && PreferVectorWidth >= 128) return TypeSize::getFixed(128); return TypeSize::getFixed(0); case TargetTransformInfo::RGK_ScalableVector: return TypeSize::getScalable(0); } llvm_unreachable("Unsupported register kind"); } unsigned X86TTIImpl::getLoadStoreVecRegBitWidth(unsigned) const { return getRegisterBitWidth(TargetTransformInfo::RGK_FixedWidthVector) .getFixedValue(); } unsigned X86TTIImpl::getMaxInterleaveFactor(ElementCount VF) { // If the loop will not be vectorized, don't interleave the loop. // Let regular unroll to unroll the loop, which saves the overflow // check and memory check cost. if (VF.isScalar()) return 1; if (ST->isAtom()) return 1; // Sandybridge and Haswell have multiple execution ports and pipelined // vector units. if (ST->hasAVX()) return 4; return 2; } InstructionCost X86TTIImpl::getArithmeticInstrCost( unsigned Opcode, Type *Ty, TTI::TargetCostKind CostKind, TTI::OperandValueInfo Op1Info, TTI::OperandValueInfo Op2Info, ArrayRef Args, const Instruction *CxtI) { // vXi8 multiplications are always promoted to vXi16. // Sub-128-bit types can be extended/packed more efficiently. if (Opcode == Instruction::Mul && Ty->isVectorTy() && Ty->getPrimitiveSizeInBits() <= 64 && Ty->getScalarSizeInBits() == 8) { Type *WideVecTy = VectorType::getExtendedElementVectorType(cast(Ty)); return getCastInstrCost(Instruction::ZExt, WideVecTy, Ty, TargetTransformInfo::CastContextHint::None, CostKind) + getCastInstrCost(Instruction::Trunc, Ty, WideVecTy, TargetTransformInfo::CastContextHint::None, CostKind) + getArithmeticInstrCost(Opcode, WideVecTy, CostKind, Op1Info, Op2Info); } // Legalize the type. std::pair LT = getTypeLegalizationCost(Ty); int ISD = TLI->InstructionOpcodeToISD(Opcode); assert(ISD && "Invalid opcode"); if (ISD == ISD::MUL && Args.size() == 2 && LT.second.isVector() && (LT.second.getScalarType() == MVT::i32 || LT.second.getScalarType() == MVT::i64)) { // Check if the operands can be represented as a smaller datatype. bool Op1Signed = false, Op2Signed = false; unsigned Op1MinSize = BaseT::minRequiredElementSize(Args[0], Op1Signed); unsigned Op2MinSize = BaseT::minRequiredElementSize(Args[1], Op2Signed); unsigned OpMinSize = std::max(Op1MinSize, Op2MinSize); bool SignedMode = Op1Signed || Op2Signed; // If both vXi32 are representable as i15 and at least one is constant, // zero-extended, or sign-extended from vXi16 (or less pre-SSE41) then we // can treat this as PMADDWD which has the same costs as a vXi16 multiply. if (OpMinSize <= 15 && !ST->isPMADDWDSlow() && LT.second.getScalarType() == MVT::i32) { bool Op1Constant = isa(Args[0]) || isa(Args[0]); bool Op2Constant = isa(Args[1]) || isa(Args[1]); bool Op1Sext = isa(Args[0]) && (Op1MinSize == 15 || (Op1MinSize < 15 && !ST->hasSSE41())); bool Op2Sext = isa(Args[1]) && (Op2MinSize == 15 || (Op2MinSize < 15 && !ST->hasSSE41())); bool IsZeroExtended = !Op1Signed || !Op2Signed; bool IsConstant = Op1Constant || Op2Constant; bool IsSext = Op1Sext || Op2Sext; if (IsConstant || IsZeroExtended || IsSext) LT.second = MVT::getVectorVT(MVT::i16, 2 * LT.second.getVectorNumElements()); } // Check if the vXi32 operands can be shrunk into a smaller datatype. // This should match the codegen from reduceVMULWidth. // TODO: Make this generic (!ST->SSE41 || ST->isPMULLDSlow()). if (ST->useSLMArithCosts() && LT.second == MVT::v4i32) { if (OpMinSize <= 7) return LT.first * 3; // pmullw/sext if (!SignedMode && OpMinSize <= 8) return LT.first * 3; // pmullw/zext if (OpMinSize <= 15) return LT.first * 5; // pmullw/pmulhw/pshuf if (!SignedMode && OpMinSize <= 16) return LT.first * 5; // pmullw/pmulhw/pshuf } // If both vXi64 are representable as (unsigned) i32, then we can perform // the multiple with a single PMULUDQ instruction. // TODO: Add (SSE41+) PMULDQ handling for signed extensions. if (!SignedMode && OpMinSize <= 32 && LT.second.getScalarType() == MVT::i64) ISD = X86ISD::PMULUDQ; } // Vector multiply by pow2 will be simplified to shifts. // Vector multiply by -pow2 will be simplified to shifts/negates. if (ISD == ISD::MUL && Op2Info.isConstant() && (Op2Info.isPowerOf2() || Op2Info.isNegatedPowerOf2())) { InstructionCost Cost = getArithmeticInstrCost(Instruction::Shl, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); if (Op2Info.isNegatedPowerOf2()) Cost += getArithmeticInstrCost(Instruction::Sub, Ty, CostKind); return Cost; } // On X86, vector signed division by constants power-of-two are // normally expanded to the sequence SRA + SRL + ADD + SRA. // The OperandValue properties may not be the same as that of the previous // operation; conservatively assume OP_None. if ((ISD == ISD::SDIV || ISD == ISD::SREM) && Op2Info.isConstant() && Op2Info.isPowerOf2()) { InstructionCost Cost = 2 * getArithmeticInstrCost(Instruction::AShr, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); Cost += getArithmeticInstrCost(Instruction::LShr, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); Cost += getArithmeticInstrCost(Instruction::Add, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); if (ISD == ISD::SREM) { // For SREM: (X % C) is the equivalent of (X - (X/C)*C) Cost += getArithmeticInstrCost(Instruction::Mul, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); Cost += getArithmeticInstrCost(Instruction::Sub, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); } return Cost; } // Vector unsigned division/remainder will be simplified to shifts/masks. if ((ISD == ISD::UDIV || ISD == ISD::UREM) && Op2Info.isConstant() && Op2Info.isPowerOf2()) { if (ISD == ISD::UDIV) return getArithmeticInstrCost(Instruction::LShr, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); // UREM return getArithmeticInstrCost(Instruction::And, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); } static const CostKindTblEntry AVX512BWUniformConstCostTable[] = { { ISD::SHL, MVT::v16i8, { 1, 7, 2, 3 } }, // psllw + pand. { ISD::SRL, MVT::v16i8, { 1, 7, 2, 3 } }, // psrlw + pand. { ISD::SRA, MVT::v16i8, { 1, 8, 4, 5 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v32i8, { 1, 8, 2, 3 } }, // psllw + pand. { ISD::SRL, MVT::v32i8, { 1, 8, 2, 3 } }, // psrlw + pand. { ISD::SRA, MVT::v32i8, { 1, 9, 4, 5 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v64i8, { 1, 8, 2, 3 } }, // psllw + pand. { ISD::SRL, MVT::v64i8, { 1, 8, 2, 3 } }, // psrlw + pand. { ISD::SRA, MVT::v64i8, { 1, 9, 4, 6 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v16i16, { 1, 1, 1, 1 } }, // psllw { ISD::SRL, MVT::v16i16, { 1, 1, 1, 1 } }, // psrlw { ISD::SRA, MVT::v16i16, { 1, 1, 1, 1 } }, // psrlw { ISD::SHL, MVT::v32i16, { 1, 1, 1, 1 } }, // psllw { ISD::SRL, MVT::v32i16, { 1, 1, 1, 1 } }, // psrlw { ISD::SRA, MVT::v32i16, { 1, 1, 1, 1 } }, // psrlw }; if (Op2Info.isUniform() && Op2Info.isConstant() && ST->hasBWI()) if (const auto *Entry = CostTableLookup(AVX512BWUniformConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX512UniformConstCostTable[] = { { ISD::SHL, MVT::v64i8, { 2, 12, 5, 6 } }, // psllw + pand. { ISD::SRL, MVT::v64i8, { 2, 12, 5, 6 } }, // psrlw + pand. { ISD::SRA, MVT::v64i8, { 3, 10, 12, 12 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v16i16, { 2, 7, 4, 4 } }, // psllw + split. { ISD::SRL, MVT::v16i16, { 2, 7, 4, 4 } }, // psrlw + split. { ISD::SRA, MVT::v16i16, { 2, 7, 4, 4 } }, // psraw + split. { ISD::SHL, MVT::v8i32, { 1, 1, 1, 1 } }, // pslld { ISD::SRL, MVT::v8i32, { 1, 1, 1, 1 } }, // psrld { ISD::SRA, MVT::v8i32, { 1, 1, 1, 1 } }, // psrad { ISD::SHL, MVT::v16i32, { 1, 1, 1, 1 } }, // pslld { ISD::SRL, MVT::v16i32, { 1, 1, 1, 1 } }, // psrld { ISD::SRA, MVT::v16i32, { 1, 1, 1, 1 } }, // psrad { ISD::SRA, MVT::v2i64, { 1, 1, 1, 1 } }, // psraq { ISD::SHL, MVT::v4i64, { 1, 1, 1, 1 } }, // psllq { ISD::SRL, MVT::v4i64, { 1, 1, 1, 1 } }, // psrlq { ISD::SRA, MVT::v4i64, { 1, 1, 1, 1 } }, // psraq { ISD::SHL, MVT::v8i64, { 1, 1, 1, 1 } }, // psllq { ISD::SRL, MVT::v8i64, { 1, 1, 1, 1 } }, // psrlq { ISD::SRA, MVT::v8i64, { 1, 1, 1, 1 } }, // psraq { ISD::SDIV, MVT::v16i32, { 6 } }, // pmuludq sequence { ISD::SREM, MVT::v16i32, { 8 } }, // pmuludq+mul+sub sequence { ISD::UDIV, MVT::v16i32, { 5 } }, // pmuludq sequence { ISD::UREM, MVT::v16i32, { 7 } }, // pmuludq+mul+sub sequence }; if (Op2Info.isUniform() && Op2Info.isConstant() && ST->hasAVX512()) if (const auto *Entry = CostTableLookup(AVX512UniformConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX2UniformConstCostTable[] = { { ISD::SHL, MVT::v16i8, { 1, 8, 2, 3 } }, // psllw + pand. { ISD::SRL, MVT::v16i8, { 1, 8, 2, 3 } }, // psrlw + pand. { ISD::SRA, MVT::v16i8, { 2, 10, 5, 6 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v32i8, { 2, 8, 2, 4 } }, // psllw + pand. { ISD::SRL, MVT::v32i8, { 2, 8, 2, 4 } }, // psrlw + pand. { ISD::SRA, MVT::v32i8, { 3, 10, 5, 9 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v8i16, { 1, 1, 1, 1 } }, // psllw { ISD::SRL, MVT::v8i16, { 1, 1, 1, 1 } }, // psrlw { ISD::SRA, MVT::v8i16, { 1, 1, 1, 1 } }, // psraw { ISD::SHL, MVT::v16i16,{ 2, 2, 1, 2 } }, // psllw { ISD::SRL, MVT::v16i16,{ 2, 2, 1, 2 } }, // psrlw { ISD::SRA, MVT::v16i16,{ 2, 2, 1, 2 } }, // psraw { ISD::SHL, MVT::v4i32, { 1, 1, 1, 1 } }, // pslld { ISD::SRL, MVT::v4i32, { 1, 1, 1, 1 } }, // psrld { ISD::SRA, MVT::v4i32, { 1, 1, 1, 1 } }, // psrad { ISD::SHL, MVT::v8i32, { 2, 2, 1, 2 } }, // pslld { ISD::SRL, MVT::v8i32, { 2, 2, 1, 2 } }, // psrld { ISD::SRA, MVT::v8i32, { 2, 2, 1, 2 } }, // psrad { ISD::SHL, MVT::v2i64, { 1, 1, 1, 1 } }, // psllq { ISD::SRL, MVT::v2i64, { 1, 1, 1, 1 } }, // psrlq { ISD::SRA, MVT::v2i64, { 2, 3, 3, 3 } }, // psrad + shuffle. { ISD::SHL, MVT::v4i64, { 2, 2, 1, 2 } }, // psllq { ISD::SRL, MVT::v4i64, { 2, 2, 1, 2 } }, // psrlq { ISD::SRA, MVT::v4i64, { 4, 4, 3, 6 } }, // psrad + shuffle + split. { ISD::SDIV, MVT::v8i32, { 6 } }, // pmuludq sequence { ISD::SREM, MVT::v8i32, { 8 } }, // pmuludq+mul+sub sequence { ISD::UDIV, MVT::v8i32, { 5 } }, // pmuludq sequence { ISD::UREM, MVT::v8i32, { 7 } }, // pmuludq+mul+sub sequence }; if (Op2Info.isUniform() && Op2Info.isConstant() && ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2UniformConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVXUniformConstCostTable[] = { { ISD::SHL, MVT::v16i8, { 2, 7, 2, 3 } }, // psllw + pand. { ISD::SRL, MVT::v16i8, { 2, 7, 2, 3 } }, // psrlw + pand. { ISD::SRA, MVT::v16i8, { 3, 9, 5, 6 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v32i8, { 4, 7, 7, 8 } }, // 2*(psllw + pand) + split. { ISD::SRL, MVT::v32i8, { 4, 7, 7, 8 } }, // 2*(psrlw + pand) + split. { ISD::SRA, MVT::v32i8, { 7, 7, 12, 13 } }, // 2*(psrlw, pand, pxor, psubb) + split. { ISD::SHL, MVT::v8i16, { 1, 2, 1, 1 } }, // psllw. { ISD::SRL, MVT::v8i16, { 1, 2, 1, 1 } }, // psrlw. { ISD::SRA, MVT::v8i16, { 1, 2, 1, 1 } }, // psraw. { ISD::SHL, MVT::v16i16,{ 3, 6, 4, 5 } }, // psllw + split. { ISD::SRL, MVT::v16i16,{ 3, 6, 4, 5 } }, // psrlw + split. { ISD::SRA, MVT::v16i16,{ 3, 6, 4, 5 } }, // psraw + split. { ISD::SHL, MVT::v4i32, { 1, 2, 1, 1 } }, // pslld. { ISD::SRL, MVT::v4i32, { 1, 2, 1, 1 } }, // psrld. { ISD::SRA, MVT::v4i32, { 1, 2, 1, 1 } }, // psrad. { ISD::SHL, MVT::v8i32, { 3, 6, 4, 5 } }, // pslld + split. { ISD::SRL, MVT::v8i32, { 3, 6, 4, 5 } }, // psrld + split. { ISD::SRA, MVT::v8i32, { 3, 6, 4, 5 } }, // psrad + split. { ISD::SHL, MVT::v2i64, { 1, 2, 1, 1 } }, // psllq. { ISD::SRL, MVT::v2i64, { 1, 2, 1, 1 } }, // psrlq. { ISD::SRA, MVT::v2i64, { 2, 3, 3, 3 } }, // psrad + shuffle. { ISD::SHL, MVT::v4i64, { 3, 6, 4, 5 } }, // 2 x psllq + split. { ISD::SRL, MVT::v4i64, { 3, 6, 4, 5 } }, // 2 x psllq + split. { ISD::SRA, MVT::v4i64, { 5, 7, 8, 9 } }, // 2 x psrad + shuffle + split. { ISD::SDIV, MVT::v8i32, { 14 } }, // 2*pmuludq sequence + split. { ISD::SREM, MVT::v8i32, { 18 } }, // 2*pmuludq+mul+sub sequence + split. { ISD::UDIV, MVT::v8i32, { 12 } }, // 2*pmuludq sequence + split. { ISD::UREM, MVT::v8i32, { 16 } }, // 2*pmuludq+mul+sub sequence + split. }; // XOP has faster vXi8 shifts. if (Op2Info.isUniform() && Op2Info.isConstant() && ST->hasAVX() && (!ST->hasXOP() || LT.second.getScalarSizeInBits() != 8)) if (const auto *Entry = CostTableLookup(AVXUniformConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SSE2UniformConstCostTable[] = { { ISD::SHL, MVT::v16i8, { 1, 7, 2, 3 } }, // psllw + pand. { ISD::SRL, MVT::v16i8, { 1, 7, 2, 3 } }, // psrlw + pand. { ISD::SRA, MVT::v16i8, { 3, 9, 5, 6 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v8i16, { 1, 1, 1, 1 } }, // psllw. { ISD::SRL, MVT::v8i16, { 1, 1, 1, 1 } }, // psrlw. { ISD::SRA, MVT::v8i16, { 1, 1, 1, 1 } }, // psraw. { ISD::SHL, MVT::v4i32, { 1, 1, 1, 1 } }, // pslld { ISD::SRL, MVT::v4i32, { 1, 1, 1, 1 } }, // psrld. { ISD::SRA, MVT::v4i32, { 1, 1, 1, 1 } }, // psrad. { ISD::SHL, MVT::v2i64, { 1, 1, 1, 1 } }, // psllq. { ISD::SRL, MVT::v2i64, { 1, 1, 1, 1 } }, // psrlq. { ISD::SRA, MVT::v2i64, { 3, 5, 6, 6 } }, // 2 x psrad + shuffle. { ISD::SDIV, MVT::v4i32, { 6 } }, // pmuludq sequence { ISD::SREM, MVT::v4i32, { 8 } }, // pmuludq+mul+sub sequence { ISD::UDIV, MVT::v4i32, { 5 } }, // pmuludq sequence { ISD::UREM, MVT::v4i32, { 7 } }, // pmuludq+mul+sub sequence }; // XOP has faster vXi8 shifts. if (Op2Info.isUniform() && Op2Info.isConstant() && ST->hasSSE2() && (!ST->hasXOP() || LT.second.getScalarSizeInBits() != 8)) if (const auto *Entry = CostTableLookup(SSE2UniformConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX512BWConstCostTable[] = { { ISD::SDIV, MVT::v64i8, { 14 } }, // 2*ext+2*pmulhw sequence { ISD::SREM, MVT::v64i8, { 16 } }, // 2*ext+2*pmulhw+mul+sub sequence { ISD::UDIV, MVT::v64i8, { 14 } }, // 2*ext+2*pmulhw sequence { ISD::UREM, MVT::v64i8, { 16 } }, // 2*ext+2*pmulhw+mul+sub sequence { ISD::SDIV, MVT::v32i16, { 6 } }, // vpmulhw sequence { ISD::SREM, MVT::v32i16, { 8 } }, // vpmulhw+mul+sub sequence { ISD::UDIV, MVT::v32i16, { 6 } }, // vpmulhuw sequence { ISD::UREM, MVT::v32i16, { 8 } }, // vpmulhuw+mul+sub sequence }; if (Op2Info.isConstant() && ST->hasBWI()) if (const auto *Entry = CostTableLookup(AVX512BWConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX512ConstCostTable[] = { { ISD::SDIV, MVT::v64i8, { 28 } }, // 4*ext+4*pmulhw sequence { ISD::SREM, MVT::v64i8, { 32 } }, // 4*ext+4*pmulhw+mul+sub sequence { ISD::UDIV, MVT::v64i8, { 28 } }, // 4*ext+4*pmulhw sequence { ISD::UREM, MVT::v64i8, { 32 } }, // 4*ext+4*pmulhw+mul+sub sequence { ISD::SDIV, MVT::v32i16, { 12 } }, // 2*vpmulhw sequence { ISD::SREM, MVT::v32i16, { 16 } }, // 2*vpmulhw+mul+sub sequence { ISD::UDIV, MVT::v32i16, { 12 } }, // 2*vpmulhuw sequence { ISD::UREM, MVT::v32i16, { 16 } }, // 2*vpmulhuw+mul+sub sequence { ISD::SDIV, MVT::v16i32, { 15 } }, // vpmuldq sequence { ISD::SREM, MVT::v16i32, { 17 } }, // vpmuldq+mul+sub sequence { ISD::UDIV, MVT::v16i32, { 15 } }, // vpmuludq sequence { ISD::UREM, MVT::v16i32, { 17 } }, // vpmuludq+mul+sub sequence }; if (Op2Info.isConstant() && ST->hasAVX512()) if (const auto *Entry = CostTableLookup(AVX512ConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX2ConstCostTable[] = { { ISD::SDIV, MVT::v32i8, { 14 } }, // 2*ext+2*pmulhw sequence { ISD::SREM, MVT::v32i8, { 16 } }, // 2*ext+2*pmulhw+mul+sub sequence { ISD::UDIV, MVT::v32i8, { 14 } }, // 2*ext+2*pmulhw sequence { ISD::UREM, MVT::v32i8, { 16 } }, // 2*ext+2*pmulhw+mul+sub sequence { ISD::SDIV, MVT::v16i16, { 6 } }, // vpmulhw sequence { ISD::SREM, MVT::v16i16, { 8 } }, // vpmulhw+mul+sub sequence { ISD::UDIV, MVT::v16i16, { 6 } }, // vpmulhuw sequence { ISD::UREM, MVT::v16i16, { 8 } }, // vpmulhuw+mul+sub sequence { ISD::SDIV, MVT::v8i32, { 15 } }, // vpmuldq sequence { ISD::SREM, MVT::v8i32, { 19 } }, // vpmuldq+mul+sub sequence { ISD::UDIV, MVT::v8i32, { 15 } }, // vpmuludq sequence { ISD::UREM, MVT::v8i32, { 19 } }, // vpmuludq+mul+sub sequence }; if (Op2Info.isConstant() && ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2ConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVXConstCostTable[] = { { ISD::SDIV, MVT::v32i8, { 30 } }, // 4*ext+4*pmulhw sequence + split. { ISD::SREM, MVT::v32i8, { 34 } }, // 4*ext+4*pmulhw+mul+sub sequence + split. { ISD::UDIV, MVT::v32i8, { 30 } }, // 4*ext+4*pmulhw sequence + split. { ISD::UREM, MVT::v32i8, { 34 } }, // 4*ext+4*pmulhw+mul+sub sequence + split. { ISD::SDIV, MVT::v16i16, { 14 } }, // 2*pmulhw sequence + split. { ISD::SREM, MVT::v16i16, { 18 } }, // 2*pmulhw+mul+sub sequence + split. { ISD::UDIV, MVT::v16i16, { 14 } }, // 2*pmulhuw sequence + split. { ISD::UREM, MVT::v16i16, { 18 } }, // 2*pmulhuw+mul+sub sequence + split. { ISD::SDIV, MVT::v8i32, { 32 } }, // vpmuludq sequence { ISD::SREM, MVT::v8i32, { 38 } }, // vpmuludq+mul+sub sequence { ISD::UDIV, MVT::v8i32, { 32 } }, // 2*pmuludq sequence + split. { ISD::UREM, MVT::v8i32, { 42 } }, // 2*pmuludq+mul+sub sequence + split. }; if (Op2Info.isConstant() && ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVXConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SSE41ConstCostTable[] = { { ISD::SDIV, MVT::v4i32, { 15 } }, // vpmuludq sequence { ISD::SREM, MVT::v4i32, { 20 } }, // vpmuludq+mul+sub sequence }; if (Op2Info.isConstant() && ST->hasSSE41()) if (const auto *Entry = CostTableLookup(SSE41ConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SSE2ConstCostTable[] = { { ISD::SDIV, MVT::v16i8, { 14 } }, // 2*ext+2*pmulhw sequence { ISD::SREM, MVT::v16i8, { 16 } }, // 2*ext+2*pmulhw+mul+sub sequence { ISD::UDIV, MVT::v16i8, { 14 } }, // 2*ext+2*pmulhw sequence { ISD::UREM, MVT::v16i8, { 16 } }, // 2*ext+2*pmulhw+mul+sub sequence { ISD::SDIV, MVT::v8i16, { 6 } }, // pmulhw sequence { ISD::SREM, MVT::v8i16, { 8 } }, // pmulhw+mul+sub sequence { ISD::UDIV, MVT::v8i16, { 6 } }, // pmulhuw sequence { ISD::UREM, MVT::v8i16, { 8 } }, // pmulhuw+mul+sub sequence { ISD::SDIV, MVT::v4i32, { 19 } }, // pmuludq sequence { ISD::SREM, MVT::v4i32, { 24 } }, // pmuludq+mul+sub sequence { ISD::UDIV, MVT::v4i32, { 15 } }, // pmuludq sequence { ISD::UREM, MVT::v4i32, { 20 } }, // pmuludq+mul+sub sequence }; if (Op2Info.isConstant() && ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2ConstCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX512BWUniformCostTable[] = { { ISD::SHL, MVT::v16i8, { 3, 5, 5, 7 } }, // psllw + pand. { ISD::SRL, MVT::v16i8, { 3,10, 5, 8 } }, // psrlw + pand. { ISD::SRA, MVT::v16i8, { 4,12, 8,12 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v32i8, { 4, 7, 6, 8 } }, // psllw + pand. { ISD::SRL, MVT::v32i8, { 4, 8, 7, 9 } }, // psrlw + pand. { ISD::SRA, MVT::v32i8, { 5,10,10,13 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v64i8, { 4, 7, 6, 8 } }, // psllw + pand. { ISD::SRL, MVT::v64i8, { 4, 8, 7,10 } }, // psrlw + pand. { ISD::SRA, MVT::v64i8, { 5,10,10,15 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v32i16, { 2, 4, 2, 3 } }, // psllw { ISD::SRL, MVT::v32i16, { 2, 4, 2, 3 } }, // psrlw { ISD::SRA, MVT::v32i16, { 2, 4, 2, 3 } }, // psrqw }; if (ST->hasBWI() && Op2Info.isUniform()) if (const auto *Entry = CostTableLookup(AVX512BWUniformCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX512UniformCostTable[] = { { ISD::SHL, MVT::v32i16, { 5,10, 5, 7 } }, // psllw + split. { ISD::SRL, MVT::v32i16, { 5,10, 5, 7 } }, // psrlw + split. { ISD::SRA, MVT::v32i16, { 5,10, 5, 7 } }, // psraw + split. { ISD::SHL, MVT::v16i32, { 2, 4, 2, 3 } }, // pslld { ISD::SRL, MVT::v16i32, { 2, 4, 2, 3 } }, // psrld { ISD::SRA, MVT::v16i32, { 2, 4, 2, 3 } }, // psrad { ISD::SRA, MVT::v2i64, { 1, 2, 1, 2 } }, // psraq { ISD::SHL, MVT::v4i64, { 1, 4, 1, 2 } }, // psllq { ISD::SRL, MVT::v4i64, { 1, 4, 1, 2 } }, // psrlq { ISD::SRA, MVT::v4i64, { 1, 4, 1, 2 } }, // psraq { ISD::SHL, MVT::v8i64, { 1, 4, 1, 2 } }, // psllq { ISD::SRL, MVT::v8i64, { 1, 4, 1, 2 } }, // psrlq { ISD::SRA, MVT::v8i64, { 1, 4, 1, 2 } }, // psraq }; if (ST->hasAVX512() && Op2Info.isUniform()) if (const auto *Entry = CostTableLookup(AVX512UniformCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX2UniformCostTable[] = { // Uniform splats are cheaper for the following instructions. { ISD::SHL, MVT::v16i8, { 3, 5, 5, 7 } }, // psllw + pand. { ISD::SRL, MVT::v16i8, { 3, 9, 5, 8 } }, // psrlw + pand. { ISD::SRA, MVT::v16i8, { 4, 5, 9,13 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v32i8, { 4, 7, 6, 8 } }, // psllw + pand. { ISD::SRL, MVT::v32i8, { 4, 8, 7, 9 } }, // psrlw + pand. { ISD::SRA, MVT::v32i8, { 6, 9,11,16 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v8i16, { 1, 2, 1, 2 } }, // psllw. { ISD::SRL, MVT::v8i16, { 1, 2, 1, 2 } }, // psrlw. { ISD::SRA, MVT::v8i16, { 1, 2, 1, 2 } }, // psraw. { ISD::SHL, MVT::v16i16, { 2, 4, 2, 3 } }, // psllw. { ISD::SRL, MVT::v16i16, { 2, 4, 2, 3 } }, // psrlw. { ISD::SRA, MVT::v16i16, { 2, 4, 2, 3 } }, // psraw. { ISD::SHL, MVT::v4i32, { 1, 2, 1, 2 } }, // pslld { ISD::SRL, MVT::v4i32, { 1, 2, 1, 2 } }, // psrld { ISD::SRA, MVT::v4i32, { 1, 2, 1, 2 } }, // psrad { ISD::SHL, MVT::v8i32, { 2, 4, 2, 3 } }, // pslld { ISD::SRL, MVT::v8i32, { 2, 4, 2, 3 } }, // psrld { ISD::SRA, MVT::v8i32, { 2, 4, 2, 3 } }, // psrad { ISD::SHL, MVT::v2i64, { 1, 2, 1, 2 } }, // psllq { ISD::SRL, MVT::v2i64, { 1, 2, 1, 2 } }, // psrlq { ISD::SRA, MVT::v2i64, { 2, 4, 5, 7 } }, // 2 x psrad + shuffle. { ISD::SHL, MVT::v4i64, { 2, 4, 1, 2 } }, // psllq { ISD::SRL, MVT::v4i64, { 2, 4, 1, 2 } }, // psrlq { ISD::SRA, MVT::v4i64, { 4, 6, 5, 9 } }, // 2 x psrad + shuffle. }; if (ST->hasAVX2() && Op2Info.isUniform()) if (const auto *Entry = CostTableLookup(AVX2UniformCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVXUniformCostTable[] = { { ISD::SHL, MVT::v16i8, { 4, 4, 6, 8 } }, // psllw + pand. { ISD::SRL, MVT::v16i8, { 4, 8, 5, 8 } }, // psrlw + pand. { ISD::SRA, MVT::v16i8, { 6, 6, 9,13 } }, // psrlw, pand, pxor, psubb. { ISD::SHL, MVT::v32i8, { 7, 8,11,14 } }, // psllw + pand + split. { ISD::SRL, MVT::v32i8, { 7, 9,10,14 } }, // psrlw + pand + split. { ISD::SRA, MVT::v32i8, { 10,11,16,21 } }, // psrlw, pand, pxor, psubb + split. { ISD::SHL, MVT::v8i16, { 1, 3, 1, 2 } }, // psllw. { ISD::SRL, MVT::v8i16, { 1, 3, 1, 2 } }, // psrlw. { ISD::SRA, MVT::v8i16, { 1, 3, 1, 2 } }, // psraw. { ISD::SHL, MVT::v16i16, { 3, 7, 5, 7 } }, // psllw + split. { ISD::SRL, MVT::v16i16, { 3, 7, 5, 7 } }, // psrlw + split. { ISD::SRA, MVT::v16i16, { 3, 7, 5, 7 } }, // psraw + split. { ISD::SHL, MVT::v4i32, { 1, 3, 1, 2 } }, // pslld. { ISD::SRL, MVT::v4i32, { 1, 3, 1, 2 } }, // psrld. { ISD::SRA, MVT::v4i32, { 1, 3, 1, 2 } }, // psrad. { ISD::SHL, MVT::v8i32, { 3, 7, 5, 7 } }, // pslld + split. { ISD::SRL, MVT::v8i32, { 3, 7, 5, 7 } }, // psrld + split. { ISD::SRA, MVT::v8i32, { 3, 7, 5, 7 } }, // psrad + split. { ISD::SHL, MVT::v2i64, { 1, 3, 1, 2 } }, // psllq. { ISD::SRL, MVT::v2i64, { 1, 3, 1, 2 } }, // psrlq. { ISD::SRA, MVT::v2i64, { 3, 4, 5, 7 } }, // 2 x psrad + shuffle. { ISD::SHL, MVT::v4i64, { 3, 7, 4, 6 } }, // psllq + split. { ISD::SRL, MVT::v4i64, { 3, 7, 4, 6 } }, // psrlq + split. { ISD::SRA, MVT::v4i64, { 6, 7,10,13 } }, // 2 x (2 x psrad + shuffle) + split. }; // XOP has faster vXi8 shifts. if (ST->hasAVX() && Op2Info.isUniform() && (!ST->hasXOP() || LT.second.getScalarSizeInBits() != 8)) if (const auto *Entry = CostTableLookup(AVXUniformCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SSE2UniformCostTable[] = { // Uniform splats are cheaper for the following instructions. { ISD::SHL, MVT::v16i8, { 9, 10, 6, 9 } }, // psllw + pand. { ISD::SRL, MVT::v16i8, { 9, 13, 5, 9 } }, // psrlw + pand. { ISD::SRA, MVT::v16i8, { 11, 15, 9,13 } }, // pcmpgtb sequence. { ISD::SHL, MVT::v8i16, { 2, 2, 1, 2 } }, // psllw. { ISD::SRL, MVT::v8i16, { 2, 2, 1, 2 } }, // psrlw. { ISD::SRA, MVT::v8i16, { 2, 2, 1, 2 } }, // psraw. { ISD::SHL, MVT::v4i32, { 2, 2, 1, 2 } }, // pslld { ISD::SRL, MVT::v4i32, { 2, 2, 1, 2 } }, // psrld. { ISD::SRA, MVT::v4i32, { 2, 2, 1, 2 } }, // psrad. { ISD::SHL, MVT::v2i64, { 2, 2, 1, 2 } }, // psllq. { ISD::SRL, MVT::v2i64, { 2, 2, 1, 2 } }, // psrlq. { ISD::SRA, MVT::v2i64, { 5, 9, 5, 7 } }, // 2*psrlq + xor + sub. }; if (ST->hasSSE2() && Op2Info.isUniform() && (!ST->hasXOP() || LT.second.getScalarSizeInBits() != 8)) if (const auto *Entry = CostTableLookup(SSE2UniformCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX512DQCostTable[] = { { ISD::MUL, MVT::v2i64, { 2, 15, 1, 3 } }, // pmullq { ISD::MUL, MVT::v4i64, { 2, 15, 1, 3 } }, // pmullq { ISD::MUL, MVT::v8i64, { 3, 15, 1, 3 } } // pmullq }; // Look for AVX512DQ lowering tricks for custom cases. if (ST->hasDQI()) if (const auto *Entry = CostTableLookup(AVX512DQCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX512BWCostTable[] = { { ISD::SHL, MVT::v16i8, { 4, 8, 4, 5 } }, // extend/vpsllvw/pack sequence. { ISD::SRL, MVT::v16i8, { 4, 8, 4, 5 } }, // extend/vpsrlvw/pack sequence. { ISD::SRA, MVT::v16i8, { 4, 8, 4, 5 } }, // extend/vpsravw/pack sequence. { ISD::SHL, MVT::v32i8, { 4, 23,11,16 } }, // extend/vpsllvw/pack sequence. { ISD::SRL, MVT::v32i8, { 4, 30,12,18 } }, // extend/vpsrlvw/pack sequence. { ISD::SRA, MVT::v32i8, { 6, 13,24,30 } }, // extend/vpsravw/pack sequence. { ISD::SHL, MVT::v64i8, { 6, 19,13,15 } }, // extend/vpsllvw/pack sequence. { ISD::SRL, MVT::v64i8, { 7, 27,15,18 } }, // extend/vpsrlvw/pack sequence. { ISD::SRA, MVT::v64i8, { 15, 15,30,30 } }, // extend/vpsravw/pack sequence. { ISD::SHL, MVT::v8i16, { 1, 1, 1, 1 } }, // vpsllvw { ISD::SRL, MVT::v8i16, { 1, 1, 1, 1 } }, // vpsrlvw { ISD::SRA, MVT::v8i16, { 1, 1, 1, 1 } }, // vpsravw { ISD::SHL, MVT::v16i16, { 1, 1, 1, 1 } }, // vpsllvw { ISD::SRL, MVT::v16i16, { 1, 1, 1, 1 } }, // vpsrlvw { ISD::SRA, MVT::v16i16, { 1, 1, 1, 1 } }, // vpsravw { ISD::SHL, MVT::v32i16, { 1, 1, 1, 1 } }, // vpsllvw { ISD::SRL, MVT::v32i16, { 1, 1, 1, 1 } }, // vpsrlvw { ISD::SRA, MVT::v32i16, { 1, 1, 1, 1 } }, // vpsravw { ISD::ADD, MVT::v64i8, { 1, 1, 1, 1 } }, // paddb { ISD::ADD, MVT::v32i16, { 1, 1, 1, 1 } }, // paddw { ISD::ADD, MVT::v32i8, { 1, 1, 1, 1 } }, // paddb { ISD::ADD, MVT::v16i16, { 1, 1, 1, 1 } }, // paddw { ISD::ADD, MVT::v8i32, { 1, 1, 1, 1 } }, // paddd { ISD::ADD, MVT::v4i64, { 1, 1, 1, 1 } }, // paddq { ISD::SUB, MVT::v64i8, { 1, 1, 1, 1 } }, // psubb { ISD::SUB, MVT::v32i16, { 1, 1, 1, 1 } }, // psubw { ISD::MUL, MVT::v64i8, { 5, 10,10,11 } }, { ISD::MUL, MVT::v32i16, { 1, 5, 1, 1 } }, // pmullw { ISD::SUB, MVT::v32i8, { 1, 1, 1, 1 } }, // psubb { ISD::SUB, MVT::v16i16, { 1, 1, 1, 1 } }, // psubw { ISD::SUB, MVT::v8i32, { 1, 1, 1, 1 } }, // psubd { ISD::SUB, MVT::v4i64, { 1, 1, 1, 1 } }, // psubq }; // Look for AVX512BW lowering tricks for custom cases. if (ST->hasBWI()) if (const auto *Entry = CostTableLookup(AVX512BWCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX512CostTable[] = { { ISD::SHL, MVT::v64i8, { 15, 19,27,33 } }, // vpblendv+split sequence. { ISD::SRL, MVT::v64i8, { 15, 19,30,36 } }, // vpblendv+split sequence. { ISD::SRA, MVT::v64i8, { 37, 37,51,63 } }, // vpblendv+split sequence. { ISD::SHL, MVT::v32i16, { 11, 16,11,15 } }, // 2*extend/vpsrlvd/pack sequence. { ISD::SRL, MVT::v32i16, { 11, 16,11,15 } }, // 2*extend/vpsrlvd/pack sequence. { ISD::SRA, MVT::v32i16, { 11, 16,11,15 } }, // 2*extend/vpsravd/pack sequence. { ISD::SHL, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::SRL, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::SRA, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::SHL, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::SRL, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::SRA, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::SHL, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::SRL, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::SRA, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::SHL, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::SRL, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::SRA, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::SHL, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::SRL, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::SRA, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::SHL, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::SRL, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::SRA, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::ADD, MVT::v64i8, { 3, 7, 5, 5 } }, // 2*paddb + split { ISD::ADD, MVT::v32i16, { 3, 7, 5, 5 } }, // 2*paddw + split { ISD::SUB, MVT::v64i8, { 3, 7, 5, 5 } }, // 2*psubb + split { ISD::SUB, MVT::v32i16, { 3, 7, 5, 5 } }, // 2*psubw + split { ISD::AND, MVT::v32i8, { 1, 1, 1, 1 } }, { ISD::AND, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::AND, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::AND, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::OR, MVT::v32i8, { 1, 1, 1, 1 } }, { ISD::OR, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::OR, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::OR, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::XOR, MVT::v32i8, { 1, 1, 1, 1 } }, { ISD::XOR, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::XOR, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::XOR, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::MUL, MVT::v16i32, { 1, 10, 1, 2 } }, // pmulld (Skylake from agner.org) { ISD::MUL, MVT::v8i32, { 1, 10, 1, 2 } }, // pmulld (Skylake from agner.org) { ISD::MUL, MVT::v4i32, { 1, 10, 1, 2 } }, // pmulld (Skylake from agner.org) { ISD::MUL, MVT::v8i64, { 6, 9, 8, 8 } }, // 3*pmuludq/3*shift/2*add { ISD::MUL, MVT::i64, { 1 } }, // Skylake from http://www.agner.org/ { X86ISD::PMULUDQ, MVT::v8i64, { 1, 5, 1, 1 } }, { ISD::FNEG, MVT::v8f64, { 1, 1, 1, 2 } }, // Skylake from http://www.agner.org/ { ISD::FADD, MVT::v8f64, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FADD, MVT::v4f64, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSUB, MVT::v8f64, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSUB, MVT::v4f64, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FMUL, MVT::v8f64, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FMUL, MVT::v4f64, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FMUL, MVT::v2f64, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FMUL, MVT::f64, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FDIV, MVT::f64, { 4, 14, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FDIV, MVT::v2f64, { 4, 14, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FDIV, MVT::v4f64, { 8, 14, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FDIV, MVT::v8f64, { 16, 23, 1, 3 } }, // Skylake from http://www.agner.org/ { ISD::FNEG, MVT::v16f32, { 1, 1, 1, 2 } }, // Skylake from http://www.agner.org/ { ISD::FADD, MVT::v16f32, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FADD, MVT::v8f32, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSUB, MVT::v16f32, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSUB, MVT::v8f32, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FMUL, MVT::v16f32, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FMUL, MVT::v8f32, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FMUL, MVT::v4f32, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FMUL, MVT::f32, { 1, 4, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FDIV, MVT::f32, { 3, 11, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FDIV, MVT::v4f32, { 3, 11, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FDIV, MVT::v8f32, { 5, 11, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FDIV, MVT::v16f32, { 10, 18, 1, 3 } }, // Skylake from http://www.agner.org/ }; if (ST->hasAVX512()) if (const auto *Entry = CostTableLookup(AVX512CostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX2ShiftCostTable[] = { // Shifts on vXi64/vXi32 on AVX2 is legal even though we declare to // customize them to detect the cases where shift amount is a scalar one. { ISD::SHL, MVT::v4i32, { 2, 3, 1, 3 } }, // vpsllvd (Haswell from agner.org) { ISD::SRL, MVT::v4i32, { 2, 3, 1, 3 } }, // vpsrlvd (Haswell from agner.org) { ISD::SRA, MVT::v4i32, { 2, 3, 1, 3 } }, // vpsravd (Haswell from agner.org) { ISD::SHL, MVT::v8i32, { 4, 4, 1, 3 } }, // vpsllvd (Haswell from agner.org) { ISD::SRL, MVT::v8i32, { 4, 4, 1, 3 } }, // vpsrlvd (Haswell from agner.org) { ISD::SRA, MVT::v8i32, { 4, 4, 1, 3 } }, // vpsravd (Haswell from agner.org) { ISD::SHL, MVT::v2i64, { 2, 3, 1, 1 } }, // vpsllvq (Haswell from agner.org) { ISD::SRL, MVT::v2i64, { 2, 3, 1, 1 } }, // vpsrlvq (Haswell from agner.org) { ISD::SHL, MVT::v4i64, { 4, 4, 1, 2 } }, // vpsllvq (Haswell from agner.org) { ISD::SRL, MVT::v4i64, { 4, 4, 1, 2 } }, // vpsrlvq (Haswell from agner.org) }; if (ST->hasAVX512()) { if (ISD == ISD::SHL && LT.second == MVT::v32i16 && Op2Info.isConstant()) // On AVX512, a packed v32i16 shift left by a constant build_vector // is lowered into a vector multiply (vpmullw). return getArithmeticInstrCost(Instruction::Mul, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); } // Look for AVX2 lowering tricks (XOP is always better at v4i32 shifts). if (ST->hasAVX2() && !(ST->hasXOP() && LT.second == MVT::v4i32)) { if (ISD == ISD::SHL && LT.second == MVT::v16i16 && Op2Info.isConstant()) // On AVX2, a packed v16i16 shift left by a constant build_vector // is lowered into a vector multiply (vpmullw). return getArithmeticInstrCost(Instruction::Mul, Ty, CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); if (const auto *Entry = CostTableLookup(AVX2ShiftCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; } static const CostKindTblEntry XOPShiftCostTable[] = { // 128bit shifts take 1cy, but right shifts require negation beforehand. { ISD::SHL, MVT::v16i8, { 1, 3, 1, 1 } }, { ISD::SRL, MVT::v16i8, { 2, 3, 1, 1 } }, { ISD::SRA, MVT::v16i8, { 2, 3, 1, 1 } }, { ISD::SHL, MVT::v8i16, { 1, 3, 1, 1 } }, { ISD::SRL, MVT::v8i16, { 2, 3, 1, 1 } }, { ISD::SRA, MVT::v8i16, { 2, 3, 1, 1 } }, { ISD::SHL, MVT::v4i32, { 1, 3, 1, 1 } }, { ISD::SRL, MVT::v4i32, { 2, 3, 1, 1 } }, { ISD::SRA, MVT::v4i32, { 2, 3, 1, 1 } }, { ISD::SHL, MVT::v2i64, { 1, 3, 1, 1 } }, { ISD::SRL, MVT::v2i64, { 2, 3, 1, 1 } }, { ISD::SRA, MVT::v2i64, { 2, 3, 1, 1 } }, // 256bit shifts require splitting if AVX2 didn't catch them above. { ISD::SHL, MVT::v32i8, { 4, 7, 5, 6 } }, { ISD::SRL, MVT::v32i8, { 6, 7, 5, 6 } }, { ISD::SRA, MVT::v32i8, { 6, 7, 5, 6 } }, { ISD::SHL, MVT::v16i16, { 4, 7, 5, 6 } }, { ISD::SRL, MVT::v16i16, { 6, 7, 5, 6 } }, { ISD::SRA, MVT::v16i16, { 6, 7, 5, 6 } }, { ISD::SHL, MVT::v8i32, { 4, 7, 5, 6 } }, { ISD::SRL, MVT::v8i32, { 6, 7, 5, 6 } }, { ISD::SRA, MVT::v8i32, { 6, 7, 5, 6 } }, { ISD::SHL, MVT::v4i64, { 4, 7, 5, 6 } }, { ISD::SRL, MVT::v4i64, { 6, 7, 5, 6 } }, { ISD::SRA, MVT::v4i64, { 6, 7, 5, 6 } }, }; // Look for XOP lowering tricks. if (ST->hasXOP()) { // If the right shift is constant then we'll fold the negation so // it's as cheap as a left shift. int ShiftISD = ISD; if ((ShiftISD == ISD::SRL || ShiftISD == ISD::SRA) && Op2Info.isConstant()) ShiftISD = ISD::SHL; if (const auto *Entry = CostTableLookup(XOPShiftCostTable, ShiftISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; } if (ISD == ISD::SHL && !Op2Info.isUniform() && Op2Info.isConstant()) { MVT VT = LT.second; // Vector shift left by non uniform constant can be lowered // into vector multiply. if (((VT == MVT::v8i16 || VT == MVT::v4i32) && ST->hasSSE2()) || ((VT == MVT::v16i16 || VT == MVT::v8i32) && ST->hasAVX())) ISD = ISD::MUL; } static const CostKindTblEntry GLMCostTable[] = { { ISD::FDIV, MVT::f32, { 18, 19, 1, 1 } }, // divss { ISD::FDIV, MVT::v4f32, { 35, 36, 1, 1 } }, // divps { ISD::FDIV, MVT::f64, { 33, 34, 1, 1 } }, // divsd { ISD::FDIV, MVT::v2f64, { 65, 66, 1, 1 } }, // divpd }; if (ST->useGLMDivSqrtCosts()) if (const auto *Entry = CostTableLookup(GLMCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SLMCostTable[] = { { ISD::MUL, MVT::v4i32, { 11, 11, 1, 7 } }, // pmulld { ISD::MUL, MVT::v8i16, { 2, 5, 1, 1 } }, // pmullw { ISD::FMUL, MVT::f64, { 2, 5, 1, 1 } }, // mulsd { ISD::FMUL, MVT::f32, { 1, 4, 1, 1 } }, // mulss { ISD::FMUL, MVT::v2f64, { 4, 7, 1, 1 } }, // mulpd { ISD::FMUL, MVT::v4f32, { 2, 5, 1, 1 } }, // mulps { ISD::FDIV, MVT::f32, { 17, 19, 1, 1 } }, // divss { ISD::FDIV, MVT::v4f32, { 39, 39, 1, 6 } }, // divps { ISD::FDIV, MVT::f64, { 32, 34, 1, 1 } }, // divsd { ISD::FDIV, MVT::v2f64, { 69, 69, 1, 6 } }, // divpd { ISD::FADD, MVT::v2f64, { 2, 4, 1, 1 } }, // addpd { ISD::FSUB, MVT::v2f64, { 2, 4, 1, 1 } }, // subpd // v2i64/v4i64 mul is custom lowered as a series of long: // multiplies(3), shifts(3) and adds(2) // slm muldq version throughput is 2 and addq throughput 4 // thus: 3X2 (muldq throughput) + 3X1 (shift throughput) + // 3X4 (addq throughput) = 17 { ISD::MUL, MVT::v2i64, { 17, 22, 9, 9 } }, // slm addq\subq throughput is 4 { ISD::ADD, MVT::v2i64, { 4, 2, 1, 2 } }, { ISD::SUB, MVT::v2i64, { 4, 2, 1, 2 } }, }; if (ST->useSLMArithCosts()) if (const auto *Entry = CostTableLookup(SLMCostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX2CostTable[] = { { ISD::SHL, MVT::v16i8, { 6, 21,11,16 } }, // vpblendvb sequence. { ISD::SHL, MVT::v32i8, { 6, 23,11,22 } }, // vpblendvb sequence. { ISD::SHL, MVT::v8i16, { 5, 18, 5,10 } }, // extend/vpsrlvd/pack sequence. { ISD::SHL, MVT::v16i16, { 8, 10,10,14 } }, // extend/vpsrlvd/pack sequence. { ISD::SRL, MVT::v16i8, { 6, 27,12,18 } }, // vpblendvb sequence. { ISD::SRL, MVT::v32i8, { 8, 30,12,24 } }, // vpblendvb sequence. { ISD::SRL, MVT::v8i16, { 5, 11, 5,10 } }, // extend/vpsrlvd/pack sequence. { ISD::SRL, MVT::v16i16, { 8, 10,10,14 } }, // extend/vpsrlvd/pack sequence. { ISD::SRA, MVT::v16i8, { 17, 17,24,30 } }, // vpblendvb sequence. { ISD::SRA, MVT::v32i8, { 18, 20,24,43 } }, // vpblendvb sequence. { ISD::SRA, MVT::v8i16, { 5, 11, 5,10 } }, // extend/vpsravd/pack sequence. { ISD::SRA, MVT::v16i16, { 8, 10,10,14 } }, // extend/vpsravd/pack sequence. { ISD::SRA, MVT::v2i64, { 4, 5, 5, 5 } }, // srl/xor/sub sequence. { ISD::SRA, MVT::v4i64, { 8, 8, 5, 9 } }, // srl/xor/sub sequence. { ISD::SUB, MVT::v32i8, { 1, 1, 1, 2 } }, // psubb { ISD::ADD, MVT::v32i8, { 1, 1, 1, 2 } }, // paddb { ISD::SUB, MVT::v16i16, { 1, 1, 1, 2 } }, // psubw { ISD::ADD, MVT::v16i16, { 1, 1, 1, 2 } }, // paddw { ISD::SUB, MVT::v8i32, { 1, 1, 1, 2 } }, // psubd { ISD::ADD, MVT::v8i32, { 1, 1, 1, 2 } }, // paddd { ISD::SUB, MVT::v4i64, { 1, 1, 1, 2 } }, // psubq { ISD::ADD, MVT::v4i64, { 1, 1, 1, 2 } }, // paddq { ISD::MUL, MVT::v16i8, { 5, 18, 6,12 } }, // extend/pmullw/pack { ISD::MUL, MVT::v32i8, { 6, 11,10,19 } }, // unpack/pmullw { ISD::MUL, MVT::v16i16, { 2, 5, 1, 2 } }, // pmullw { ISD::MUL, MVT::v8i32, { 4, 10, 1, 2 } }, // pmulld { ISD::MUL, MVT::v4i32, { 2, 10, 1, 2 } }, // pmulld { ISD::MUL, MVT::v4i64, { 6, 10, 8,13 } }, // 3*pmuludq/3*shift/2*add { ISD::MUL, MVT::v2i64, { 6, 10, 8, 8 } }, // 3*pmuludq/3*shift/2*add { X86ISD::PMULUDQ, MVT::v4i64, { 1, 5, 1, 1 } }, { ISD::FNEG, MVT::v4f64, { 1, 1, 1, 2 } }, // vxorpd { ISD::FNEG, MVT::v8f32, { 1, 1, 1, 2 } }, // vxorps { ISD::FADD, MVT::f64, { 1, 4, 1, 1 } }, // vaddsd { ISD::FADD, MVT::f32, { 1, 4, 1, 1 } }, // vaddss { ISD::FADD, MVT::v2f64, { 1, 4, 1, 1 } }, // vaddpd { ISD::FADD, MVT::v4f32, { 1, 4, 1, 1 } }, // vaddps { ISD::FADD, MVT::v4f64, { 1, 4, 1, 2 } }, // vaddpd { ISD::FADD, MVT::v8f32, { 1, 4, 1, 2 } }, // vaddps { ISD::FSUB, MVT::f64, { 1, 4, 1, 1 } }, // vsubsd { ISD::FSUB, MVT::f32, { 1, 4, 1, 1 } }, // vsubss { ISD::FSUB, MVT::v2f64, { 1, 4, 1, 1 } }, // vsubpd { ISD::FSUB, MVT::v4f32, { 1, 4, 1, 1 } }, // vsubps { ISD::FSUB, MVT::v4f64, { 1, 4, 1, 2 } }, // vsubpd { ISD::FSUB, MVT::v8f32, { 1, 4, 1, 2 } }, // vsubps { ISD::FMUL, MVT::f64, { 1, 5, 1, 1 } }, // vmulsd { ISD::FMUL, MVT::f32, { 1, 5, 1, 1 } }, // vmulss { ISD::FMUL, MVT::v2f64, { 1, 5, 1, 1 } }, // vmulpd { ISD::FMUL, MVT::v4f32, { 1, 5, 1, 1 } }, // vmulps { ISD::FMUL, MVT::v4f64, { 1, 5, 1, 2 } }, // vmulpd { ISD::FMUL, MVT::v8f32, { 1, 5, 1, 2 } }, // vmulps { ISD::FDIV, MVT::f32, { 7, 13, 1, 1 } }, // vdivss { ISD::FDIV, MVT::v4f32, { 7, 13, 1, 1 } }, // vdivps { ISD::FDIV, MVT::v8f32, { 14, 21, 1, 3 } }, // vdivps { ISD::FDIV, MVT::f64, { 14, 20, 1, 1 } }, // vdivsd { ISD::FDIV, MVT::v2f64, { 14, 20, 1, 1 } }, // vdivpd { ISD::FDIV, MVT::v4f64, { 28, 35, 1, 3 } }, // vdivpd }; // Look for AVX2 lowering tricks for custom cases. if (ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2CostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry AVX1CostTable[] = { // We don't have to scalarize unsupported ops. We can issue two half-sized // operations and we only need to extract the upper YMM half. // Two ops + 1 extract + 1 insert = 4. { ISD::MUL, MVT::v32i8, { 12, 13, 22, 23 } }, // unpack/pmullw + split { ISD::MUL, MVT::v16i16, { 4, 8, 5, 6 } }, // pmullw + split { ISD::MUL, MVT::v8i32, { 5, 8, 5, 10 } }, // pmulld + split { ISD::MUL, MVT::v4i32, { 2, 5, 1, 3 } }, // pmulld { ISD::MUL, MVT::v4i64, { 12, 15, 19, 20 } }, { ISD::AND, MVT::v32i8, { 1, 1, 1, 2 } }, // vandps { ISD::AND, MVT::v16i16, { 1, 1, 1, 2 } }, // vandps { ISD::AND, MVT::v8i32, { 1, 1, 1, 2 } }, // vandps { ISD::AND, MVT::v4i64, { 1, 1, 1, 2 } }, // vandps { ISD::OR, MVT::v32i8, { 1, 1, 1, 2 } }, // vorps { ISD::OR, MVT::v16i16, { 1, 1, 1, 2 } }, // vorps { ISD::OR, MVT::v8i32, { 1, 1, 1, 2 } }, // vorps { ISD::OR, MVT::v4i64, { 1, 1, 1, 2 } }, // vorps { ISD::XOR, MVT::v32i8, { 1, 1, 1, 2 } }, // vxorps { ISD::XOR, MVT::v16i16, { 1, 1, 1, 2 } }, // vxorps { ISD::XOR, MVT::v8i32, { 1, 1, 1, 2 } }, // vxorps { ISD::XOR, MVT::v4i64, { 1, 1, 1, 2 } }, // vxorps { ISD::SUB, MVT::v32i8, { 4, 2, 5, 6 } }, // psubb + split { ISD::ADD, MVT::v32i8, { 4, 2, 5, 6 } }, // paddb + split { ISD::SUB, MVT::v16i16, { 4, 2, 5, 6 } }, // psubw + split { ISD::ADD, MVT::v16i16, { 4, 2, 5, 6 } }, // paddw + split { ISD::SUB, MVT::v8i32, { 4, 2, 5, 6 } }, // psubd + split { ISD::ADD, MVT::v8i32, { 4, 2, 5, 6 } }, // paddd + split { ISD::SUB, MVT::v4i64, { 4, 2, 5, 6 } }, // psubq + split { ISD::ADD, MVT::v4i64, { 4, 2, 5, 6 } }, // paddq + split { ISD::SUB, MVT::v2i64, { 1, 1, 1, 1 } }, // psubq { ISD::ADD, MVT::v2i64, { 1, 1, 1, 1 } }, // paddq { ISD::SHL, MVT::v16i8, { 10, 21,11,17 } }, // pblendvb sequence. { ISD::SHL, MVT::v32i8, { 22, 22,27,40 } }, // pblendvb sequence + split. { ISD::SHL, MVT::v8i16, { 6, 9,11,11 } }, // pblendvb sequence. { ISD::SHL, MVT::v16i16, { 13, 16,24,25 } }, // pblendvb sequence + split. { ISD::SHL, MVT::v4i32, { 3, 11, 4, 6 } }, // pslld/paddd/cvttps2dq/pmulld { ISD::SHL, MVT::v8i32, { 9, 11,12,17 } }, // pslld/paddd/cvttps2dq/pmulld + split { ISD::SHL, MVT::v2i64, { 2, 4, 4, 6 } }, // Shift each lane + blend. { ISD::SHL, MVT::v4i64, { 6, 7,11,15 } }, // Shift each lane + blend + split. { ISD::SRL, MVT::v16i8, { 11, 27,12,18 } }, // pblendvb sequence. { ISD::SRL, MVT::v32i8, { 23, 23,30,43 } }, // pblendvb sequence + split. { ISD::SRL, MVT::v8i16, { 13, 16,14,22 } }, // pblendvb sequence. { ISD::SRL, MVT::v16i16, { 28, 30,31,48 } }, // pblendvb sequence + split. { ISD::SRL, MVT::v4i32, { 6, 7,12,16 } }, // Shift each lane + blend. { ISD::SRL, MVT::v8i32, { 14, 14,26,34 } }, // Shift each lane + blend + split. { ISD::SRL, MVT::v2i64, { 2, 4, 4, 6 } }, // Shift each lane + blend. { ISD::SRL, MVT::v4i64, { 6, 7,11,15 } }, // Shift each lane + blend + split. { ISD::SRA, MVT::v16i8, { 21, 22,24,36 } }, // pblendvb sequence. { ISD::SRA, MVT::v32i8, { 44, 45,51,76 } }, // pblendvb sequence + split. { ISD::SRA, MVT::v8i16, { 13, 16,14,22 } }, // pblendvb sequence. { ISD::SRA, MVT::v16i16, { 28, 30,31,48 } }, // pblendvb sequence + split. { ISD::SRA, MVT::v4i32, { 6, 7,12,16 } }, // Shift each lane + blend. { ISD::SRA, MVT::v8i32, { 14, 14,26,34 } }, // Shift each lane + blend + split. { ISD::SRA, MVT::v2i64, { 5, 6,10,14 } }, // Shift each lane + blend. { ISD::SRA, MVT::v4i64, { 12, 12,22,30 } }, // Shift each lane + blend + split. { ISD::FNEG, MVT::v4f64, { 2, 2, 1, 2 } }, // BTVER2 from http://www.agner.org/ { ISD::FNEG, MVT::v8f32, { 2, 2, 1, 2 } }, // BTVER2 from http://www.agner.org/ { ISD::FADD, MVT::f64, { 1, 5, 1, 1 } }, // BDVER2 from http://www.agner.org/ { ISD::FADD, MVT::f32, { 1, 5, 1, 1 } }, // BDVER2 from http://www.agner.org/ { ISD::FADD, MVT::v2f64, { 1, 5, 1, 1 } }, // BDVER2 from http://www.agner.org/ { ISD::FADD, MVT::v4f32, { 1, 5, 1, 1 } }, // BDVER2 from http://www.agner.org/ { ISD::FADD, MVT::v4f64, { 2, 5, 1, 2 } }, // BDVER2 from http://www.agner.org/ { ISD::FADD, MVT::v8f32, { 2, 5, 1, 2 } }, // BDVER2 from http://www.agner.org/ { ISD::FSUB, MVT::f64, { 1, 5, 1, 1 } }, // BDVER2 from http://www.agner.org/ { ISD::FSUB, MVT::f32, { 1, 5, 1, 1 } }, // BDVER2 from http://www.agner.org/ { ISD::FSUB, MVT::v2f64, { 1, 5, 1, 1 } }, // BDVER2 from http://www.agner.org/ { ISD::FSUB, MVT::v4f32, { 1, 5, 1, 1 } }, // BDVER2 from http://www.agner.org/ { ISD::FSUB, MVT::v4f64, { 2, 5, 1, 2 } }, // BDVER2 from http://www.agner.org/ { ISD::FSUB, MVT::v8f32, { 2, 5, 1, 2 } }, // BDVER2 from http://www.agner.org/ { ISD::FMUL, MVT::f64, { 2, 5, 1, 1 } }, // BTVER2 from http://www.agner.org/ { ISD::FMUL, MVT::f32, { 1, 5, 1, 1 } }, // BTVER2 from http://www.agner.org/ { ISD::FMUL, MVT::v2f64, { 2, 5, 1, 1 } }, // BTVER2 from http://www.agner.org/ { ISD::FMUL, MVT::v4f32, { 1, 5, 1, 1 } }, // BTVER2 from http://www.agner.org/ { ISD::FMUL, MVT::v4f64, { 4, 5, 1, 2 } }, // BTVER2 from http://www.agner.org/ { ISD::FMUL, MVT::v8f32, { 2, 5, 1, 2 } }, // BTVER2 from http://www.agner.org/ { ISD::FDIV, MVT::f32, { 14, 14, 1, 1 } }, // SNB from http://www.agner.org/ { ISD::FDIV, MVT::v4f32, { 14, 14, 1, 1 } }, // SNB from http://www.agner.org/ { ISD::FDIV, MVT::v8f32, { 28, 29, 1, 3 } }, // SNB from http://www.agner.org/ { ISD::FDIV, MVT::f64, { 22, 22, 1, 1 } }, // SNB from http://www.agner.org/ { ISD::FDIV, MVT::v2f64, { 22, 22, 1, 1 } }, // SNB from http://www.agner.org/ { ISD::FDIV, MVT::v4f64, { 44, 45, 1, 3 } }, // SNB from http://www.agner.org/ }; if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1CostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SSE42CostTable[] = { { ISD::FADD, MVT::f64, { 1, 3, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FADD, MVT::f32, { 1, 3, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FADD, MVT::v2f64, { 1, 3, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FADD, MVT::v4f32, { 1, 3, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FSUB, MVT::f64, { 1, 3, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FSUB, MVT::f32 , { 1, 3, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FSUB, MVT::v2f64, { 1, 3, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FSUB, MVT::v4f32, { 1, 3, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FMUL, MVT::f64, { 1, 5, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FMUL, MVT::f32, { 1, 5, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FMUL, MVT::v2f64, { 1, 5, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FMUL, MVT::v4f32, { 1, 5, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FDIV, MVT::f32, { 14, 14, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FDIV, MVT::v4f32, { 14, 14, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FDIV, MVT::f64, { 22, 22, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FDIV, MVT::v2f64, { 22, 22, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::MUL, MVT::v2i64, { 6, 10,10,10 } } // 3*pmuludq/3*shift/2*add }; if (ST->hasSSE42()) if (const auto *Entry = CostTableLookup(SSE42CostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SSE41CostTable[] = { { ISD::SHL, MVT::v16i8, { 15, 24,17,22 } }, // pblendvb sequence. { ISD::SHL, MVT::v8i16, { 11, 14,11,11 } }, // pblendvb sequence. { ISD::SHL, MVT::v4i32, { 14, 20, 4,10 } }, // pslld/paddd/cvttps2dq/pmulld { ISD::SRL, MVT::v16i8, { 16, 27,18,24 } }, // pblendvb sequence. { ISD::SRL, MVT::v8i16, { 22, 26,23,27 } }, // pblendvb sequence. { ISD::SRL, MVT::v4i32, { 16, 17,15,19 } }, // Shift each lane + blend. { ISD::SRL, MVT::v2i64, { 4, 6, 5, 7 } }, // splat+shuffle sequence. { ISD::SRA, MVT::v16i8, { 38, 41,30,36 } }, // pblendvb sequence. { ISD::SRA, MVT::v8i16, { 22, 26,23,27 } }, // pblendvb sequence. { ISD::SRA, MVT::v4i32, { 16, 17,15,19 } }, // Shift each lane + blend. { ISD::SRA, MVT::v2i64, { 8, 17, 5, 7 } }, // splat+shuffle sequence. { ISD::MUL, MVT::v16i8, { 5, 18,10,12 } }, // 2*unpack/2*pmullw/2*and/pack { ISD::MUL, MVT::v4i32, { 2, 11, 1, 1 } } // pmulld (Nehalem from agner.org) }; if (ST->hasSSE41()) if (const auto *Entry = CostTableLookup(SSE41CostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SSE2CostTable[] = { // We don't correctly identify costs of casts because they are marked as // custom. { ISD::SHL, MVT::v16i8, { 13, 21,26,28 } }, // cmpgtb sequence. { ISD::SHL, MVT::v8i16, { 24, 27,16,20 } }, // cmpgtw sequence. { ISD::SHL, MVT::v4i32, { 17, 19,10,12 } }, // pslld/paddd/cvttps2dq/pmuludq. { ISD::SHL, MVT::v2i64, { 4, 6, 5, 7 } }, // splat+shuffle sequence. { ISD::SRL, MVT::v16i8, { 14, 28,27,30 } }, // cmpgtb sequence. { ISD::SRL, MVT::v8i16, { 16, 19,31,31 } }, // cmpgtw sequence. { ISD::SRL, MVT::v4i32, { 12, 12,15,19 } }, // Shift each lane + blend. { ISD::SRL, MVT::v2i64, { 4, 6, 5, 7 } }, // splat+shuffle sequence. { ISD::SRA, MVT::v16i8, { 27, 30,54,54 } }, // unpacked cmpgtb sequence. { ISD::SRA, MVT::v8i16, { 16, 19,31,31 } }, // cmpgtw sequence. { ISD::SRA, MVT::v4i32, { 12, 12,15,19 } }, // Shift each lane + blend. { ISD::SRA, MVT::v2i64, { 8, 11,12,16 } }, // srl/xor/sub splat+shuffle sequence. { ISD::AND, MVT::v16i8, { 1, 1, 1, 1 } }, // pand { ISD::AND, MVT::v8i16, { 1, 1, 1, 1 } }, // pand { ISD::AND, MVT::v4i32, { 1, 1, 1, 1 } }, // pand { ISD::AND, MVT::v2i64, { 1, 1, 1, 1 } }, // pand { ISD::OR, MVT::v16i8, { 1, 1, 1, 1 } }, // por { ISD::OR, MVT::v8i16, { 1, 1, 1, 1 } }, // por { ISD::OR, MVT::v4i32, { 1, 1, 1, 1 } }, // por { ISD::OR, MVT::v2i64, { 1, 1, 1, 1 } }, // por { ISD::XOR, MVT::v16i8, { 1, 1, 1, 1 } }, // pxor { ISD::XOR, MVT::v8i16, { 1, 1, 1, 1 } }, // pxor { ISD::XOR, MVT::v4i32, { 1, 1, 1, 1 } }, // pxor { ISD::XOR, MVT::v2i64, { 1, 1, 1, 1 } }, // pxor { ISD::ADD, MVT::v2i64, { 1, 2, 1, 2 } }, // paddq { ISD::SUB, MVT::v2i64, { 1, 2, 1, 2 } }, // psubq { ISD::MUL, MVT::v16i8, { 5, 18,12,12 } }, // 2*unpack/2*pmullw/2*and/pack { ISD::MUL, MVT::v8i16, { 1, 5, 1, 1 } }, // pmullw { ISD::MUL, MVT::v4i32, { 6, 8, 7, 7 } }, // 3*pmuludq/4*shuffle { ISD::MUL, MVT::v2i64, { 7, 10,10,10 } }, // 3*pmuludq/3*shift/2*add { X86ISD::PMULUDQ, MVT::v2i64, { 1, 5, 1, 1 } }, { ISD::FDIV, MVT::f32, { 23, 23, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FDIV, MVT::v4f32, { 39, 39, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FDIV, MVT::f64, { 38, 38, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FDIV, MVT::v2f64, { 69, 69, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FNEG, MVT::f32, { 1, 1, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FNEG, MVT::f64, { 1, 1, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FNEG, MVT::v4f32, { 1, 1, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FNEG, MVT::v2f64, { 1, 1, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FADD, MVT::f32, { 2, 3, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FADD, MVT::f64, { 2, 3, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FADD, MVT::v2f64, { 2, 3, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FSUB, MVT::f32, { 2, 3, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FSUB, MVT::f64, { 2, 3, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FSUB, MVT::v2f64, { 2, 3, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FMUL, MVT::f64, { 2, 5, 1, 1 } }, // Pentium IV from http://www.agner.org/ { ISD::FMUL, MVT::v2f64, { 2, 5, 1, 1 } }, // Pentium IV from http://www.agner.org/ }; if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2CostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry SSE1CostTable[] = { { ISD::FDIV, MVT::f32, { 17, 18, 1, 1 } }, // Pentium III from http://www.agner.org/ { ISD::FDIV, MVT::v4f32, { 34, 48, 1, 1 } }, // Pentium III from http://www.agner.org/ { ISD::FNEG, MVT::f32, { 2, 2, 1, 2 } }, // Pentium III from http://www.agner.org/ { ISD::FNEG, MVT::v4f32, { 2, 2, 1, 2 } }, // Pentium III from http://www.agner.org/ { ISD::FADD, MVT::f32, { 1, 3, 1, 1 } }, // Pentium III from http://www.agner.org/ { ISD::FADD, MVT::v4f32, { 2, 3, 1, 1 } }, // Pentium III from http://www.agner.org/ { ISD::FSUB, MVT::f32, { 1, 3, 1, 1 } }, // Pentium III from http://www.agner.org/ { ISD::FSUB, MVT::v4f32, { 2, 3, 1, 1 } }, // Pentium III from http://www.agner.org/ { ISD::FMUL, MVT::f32, { 2, 5, 1, 1 } }, // Pentium III from http://www.agner.org/ { ISD::FMUL, MVT::v4f32, { 2, 5, 1, 1 } }, // Pentium III from http://www.agner.org/ }; if (ST->hasSSE1()) if (const auto *Entry = CostTableLookup(SSE1CostTable, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry X64CostTbl[] = { // 64-bit targets { ISD::ADD, MVT::i64, { 1 } }, // Core (Merom) from http://www.agner.org/ { ISD::SUB, MVT::i64, { 1 } }, // Core (Merom) from http://www.agner.org/ { ISD::MUL, MVT::i64, { 2, 6, 1, 2 } }, }; if (ST->is64Bit()) if (const auto *Entry = CostTableLookup(X64CostTbl, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostKindTblEntry X86CostTbl[] = { // 32 or 64-bit targets { ISD::ADD, MVT::i8, { 1 } }, // Pentium III from http://www.agner.org/ { ISD::ADD, MVT::i16, { 1 } }, // Pentium III from http://www.agner.org/ { ISD::ADD, MVT::i32, { 1 } }, // Pentium III from http://www.agner.org/ { ISD::SUB, MVT::i8, { 1 } }, // Pentium III from http://www.agner.org/ { ISD::SUB, MVT::i16, { 1 } }, // Pentium III from http://www.agner.org/ { ISD::SUB, MVT::i32, { 1 } }, // Pentium III from http://www.agner.org/ { ISD::MUL, MVT::i8, { 3, 4, 1, 1 } }, { ISD::MUL, MVT::i16, { 2, 4, 1, 1 } }, { ISD::MUL, MVT::i32, { 1, 4, 1, 1 } }, { ISD::FNEG, MVT::f64, { 2, 2, 1, 3 } }, // (x87) { ISD::FADD, MVT::f64, { 2, 3, 1, 1 } }, // (x87) { ISD::FSUB, MVT::f64, { 2, 3, 1, 1 } }, // (x87) { ISD::FMUL, MVT::f64, { 2, 5, 1, 1 } }, // (x87) { ISD::FDIV, MVT::f64, { 38, 38, 1, 1 } }, // (x87) }; if (const auto *Entry = CostTableLookup(X86CostTbl, ISD, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; // It is not a good idea to vectorize division. We have to scalarize it and // in the process we will often end up having to spilling regular // registers. The overhead of division is going to dominate most kernels // anyways so try hard to prevent vectorization of division - it is // generally a bad idea. Assume somewhat arbitrarily that we have to be able // to hide "20 cycles" for each lane. if (CostKind == TTI::TCK_RecipThroughput && LT.second.isVector() && (ISD == ISD::SDIV || ISD == ISD::SREM || ISD == ISD::UDIV || ISD == ISD::UREM)) { InstructionCost ScalarCost = getArithmeticInstrCost(Opcode, Ty->getScalarType(), CostKind, Op1Info.getNoProps(), Op2Info.getNoProps()); return 20 * LT.first * LT.second.getVectorNumElements() * ScalarCost; } // Handle some basic single instruction code size cases. if (CostKind == TTI::TCK_CodeSize) { switch (ISD) { case ISD::FADD: case ISD::FSUB: case ISD::FMUL: case ISD::FDIV: case ISD::FNEG: case ISD::AND: case ISD::OR: case ISD::XOR: return LT.first; break; } } // Fallback to the default implementation. return BaseT::getArithmeticInstrCost(Opcode, Ty, CostKind, Op1Info, Op2Info, Args, CxtI); } InstructionCost X86TTIImpl::getAltInstrCost(VectorType *VecTy, unsigned Opcode0, unsigned Opcode1, const SmallBitVector &OpcodeMask, TTI::TargetCostKind CostKind) const { if (isLegalAltInstr(VecTy, Opcode0, Opcode1, OpcodeMask)) return TTI::TCC_Basic; return InstructionCost::getInvalid(); } InstructionCost X86TTIImpl::getShuffleCost(TTI::ShuffleKind Kind, VectorType *BaseTp, ArrayRef Mask, TTI::TargetCostKind CostKind, int Index, VectorType *SubTp, ArrayRef Args) { // 64-bit packed float vectors (v2f32) are widened to type v4f32. // 64-bit packed integer vectors (v2i32) are widened to type v4i32. std::pair LT = getTypeLegalizationCost(BaseTp); Kind = improveShuffleKindFromMask(Kind, Mask, BaseTp, Index, SubTp); // Treat Transpose as 2-op shuffles - there's no difference in lowering. if (Kind == TTI::SK_Transpose) Kind = TTI::SK_PermuteTwoSrc; // For Broadcasts we are splatting the first element from the first input // register, so only need to reference that input and all the output // registers are the same. if (Kind == TTI::SK_Broadcast) LT.first = 1; // Treat shuffles as . if (LT.second.isVector() && LT.second.getScalarType() == MVT::bf16) LT.second = LT.second.changeVectorElementType(MVT::f16); // Subvector extractions are free if they start at the beginning of a // vector and cheap if the subvectors are aligned. if (Kind == TTI::SK_ExtractSubvector && LT.second.isVector()) { int NumElts = LT.second.getVectorNumElements(); if ((Index % NumElts) == 0) return 0; std::pair SubLT = getTypeLegalizationCost(SubTp); if (SubLT.second.isVector()) { int NumSubElts = SubLT.second.getVectorNumElements(); if ((Index % NumSubElts) == 0 && (NumElts % NumSubElts) == 0) return SubLT.first; // Handle some cases for widening legalization. For now we only handle // cases where the original subvector was naturally aligned and evenly // fit in its legalized subvector type. // FIXME: Remove some of the alignment restrictions. // FIXME: We can use permq for 64-bit or larger extracts from 256-bit // vectors. int OrigSubElts = cast(SubTp)->getNumElements(); if (NumSubElts > OrigSubElts && (Index % OrigSubElts) == 0 && (NumSubElts % OrigSubElts) == 0 && LT.second.getVectorElementType() == SubLT.second.getVectorElementType() && LT.second.getVectorElementType().getSizeInBits() == BaseTp->getElementType()->getPrimitiveSizeInBits()) { assert(NumElts >= NumSubElts && NumElts > OrigSubElts && "Unexpected number of elements!"); auto *VecTy = FixedVectorType::get(BaseTp->getElementType(), LT.second.getVectorNumElements()); auto *SubTy = FixedVectorType::get(BaseTp->getElementType(), SubLT.second.getVectorNumElements()); int ExtractIndex = alignDown((Index % NumElts), NumSubElts); InstructionCost ExtractCost = getShuffleCost(TTI::SK_ExtractSubvector, VecTy, std::nullopt, CostKind, ExtractIndex, SubTy); // If the original size is 32-bits or more, we can use pshufd. Otherwise // if we have SSSE3 we can use pshufb. if (SubTp->getPrimitiveSizeInBits() >= 32 || ST->hasSSSE3()) return ExtractCost + 1; // pshufd or pshufb assert(SubTp->getPrimitiveSizeInBits() == 16 && "Unexpected vector size"); return ExtractCost + 2; // worst case pshufhw + pshufd } } } // Subvector insertions are cheap if the subvectors are aligned. // Note that in general, the insertion starting at the beginning of a vector // isn't free, because we need to preserve the rest of the wide vector. if (Kind == TTI::SK_InsertSubvector && LT.second.isVector()) { int NumElts = LT.second.getVectorNumElements(); std::pair SubLT = getTypeLegalizationCost(SubTp); if (SubLT.second.isVector()) { int NumSubElts = SubLT.second.getVectorNumElements(); if ((Index % NumSubElts) == 0 && (NumElts % NumSubElts) == 0) return SubLT.first; } // If the insertion isn't aligned, treat it like a 2-op shuffle. Kind = TTI::SK_PermuteTwoSrc; } // Handle some common (illegal) sub-vector types as they are often very cheap // to shuffle even on targets without PSHUFB. EVT VT = TLI->getValueType(DL, BaseTp); if (VT.isSimple() && VT.isVector() && VT.getSizeInBits() < 128 && !ST->hasSSSE3()) { static const CostTblEntry SSE2SubVectorShuffleTbl[] = { {TTI::SK_Broadcast, MVT::v4i16, 1}, // pshuflw {TTI::SK_Broadcast, MVT::v2i16, 1}, // pshuflw {TTI::SK_Broadcast, MVT::v8i8, 2}, // punpck/pshuflw {TTI::SK_Broadcast, MVT::v4i8, 2}, // punpck/pshuflw {TTI::SK_Broadcast, MVT::v2i8, 1}, // punpck {TTI::SK_Reverse, MVT::v4i16, 1}, // pshuflw {TTI::SK_Reverse, MVT::v2i16, 1}, // pshuflw {TTI::SK_Reverse, MVT::v4i8, 3}, // punpck/pshuflw/packus {TTI::SK_Reverse, MVT::v2i8, 1}, // punpck {TTI::SK_Splice, MVT::v4i16, 2}, // punpck+psrldq {TTI::SK_Splice, MVT::v2i16, 2}, // punpck+psrldq {TTI::SK_Splice, MVT::v4i8, 2}, // punpck+psrldq {TTI::SK_Splice, MVT::v2i8, 2}, // punpck+psrldq {TTI::SK_PermuteTwoSrc, MVT::v4i16, 2}, // punpck/pshuflw {TTI::SK_PermuteTwoSrc, MVT::v2i16, 2}, // punpck/pshuflw {TTI::SK_PermuteTwoSrc, MVT::v8i8, 7}, // punpck/pshuflw {TTI::SK_PermuteTwoSrc, MVT::v4i8, 4}, // punpck/pshuflw {TTI::SK_PermuteTwoSrc, MVT::v2i8, 2}, // punpck {TTI::SK_PermuteSingleSrc, MVT::v4i16, 1}, // pshuflw {TTI::SK_PermuteSingleSrc, MVT::v2i16, 1}, // pshuflw {TTI::SK_PermuteSingleSrc, MVT::v8i8, 5}, // punpck/pshuflw {TTI::SK_PermuteSingleSrc, MVT::v4i8, 3}, // punpck/pshuflw {TTI::SK_PermuteSingleSrc, MVT::v2i8, 1}, // punpck }; if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2SubVectorShuffleTbl, Kind, VT.getSimpleVT())) return Entry->Cost; } // We are going to permute multiple sources and the result will be in multiple // destinations. Providing an accurate cost only for splits where the element // type remains the same. if (Kind == TTI::SK_PermuteSingleSrc && LT.first != 1) { MVT LegalVT = LT.second; if (LegalVT.isVector() && LegalVT.getVectorElementType().getSizeInBits() == BaseTp->getElementType()->getPrimitiveSizeInBits() && LegalVT.getVectorNumElements() < cast(BaseTp)->getNumElements()) { unsigned VecTySize = DL.getTypeStoreSize(BaseTp); unsigned LegalVTSize = LegalVT.getStoreSize(); // Number of source vectors after legalization: unsigned NumOfSrcs = (VecTySize + LegalVTSize - 1) / LegalVTSize; // Number of destination vectors after legalization: InstructionCost NumOfDests = LT.first; auto *SingleOpTy = FixedVectorType::get(BaseTp->getElementType(), LegalVT.getVectorNumElements()); if (!Mask.empty() && NumOfDests.isValid()) { // Try to perform better estimation of the permutation. // 1. Split the source/destination vectors into real registers. // 2. Do the mask analysis to identify which real registers are // permuted. If more than 1 source registers are used for the // destination register building, the cost for this destination register // is (Number_of_source_register - 1) * Cost_PermuteTwoSrc. If only one // source register is used, build mask and calculate the cost as a cost // of PermuteSingleSrc. // Also, for the single register permute we try to identify if the // destination register is just a copy of the source register or the // copy of the previous destination register (the cost is // TTI::TCC_Basic). If the source register is just reused, the cost for // this operation is 0. NumOfDests = getTypeLegalizationCost( FixedVectorType::get(BaseTp->getElementType(), Mask.size())) .first; unsigned E = *NumOfDests.getValue(); unsigned NormalizedVF = LegalVT.getVectorNumElements() * std::max(NumOfSrcs, E); unsigned NumOfSrcRegs = NormalizedVF / LegalVT.getVectorNumElements(); unsigned NumOfDestRegs = NormalizedVF / LegalVT.getVectorNumElements(); SmallVector NormalizedMask(NormalizedVF, PoisonMaskElem); copy(Mask, NormalizedMask.begin()); unsigned PrevSrcReg = 0; ArrayRef PrevRegMask; InstructionCost Cost = 0; processShuffleMasks( NormalizedMask, NumOfSrcRegs, NumOfDestRegs, NumOfDestRegs, []() {}, [this, SingleOpTy, CostKind, &PrevSrcReg, &PrevRegMask, &Cost](ArrayRef RegMask, unsigned SrcReg, unsigned DestReg) { if (!ShuffleVectorInst::isIdentityMask(RegMask, RegMask.size())) { // Check if the previous register can be just copied to the next // one. if (PrevRegMask.empty() || PrevSrcReg != SrcReg || PrevRegMask != RegMask) Cost += getShuffleCost(TTI::SK_PermuteSingleSrc, SingleOpTy, RegMask, CostKind, 0, nullptr); else // Just a copy of previous destination register. Cost += TTI::TCC_Basic; return; } if (SrcReg != DestReg && any_of(RegMask, [](int I) { return I != PoisonMaskElem; })) { // Just a copy of the source register. Cost += TTI::TCC_Basic; } PrevSrcReg = SrcReg; PrevRegMask = RegMask; }, [this, SingleOpTy, CostKind, &Cost](ArrayRef RegMask, unsigned /*Unused*/, unsigned /*Unused*/) { Cost += getShuffleCost(TTI::SK_PermuteTwoSrc, SingleOpTy, RegMask, CostKind, 0, nullptr); }); return Cost; } InstructionCost NumOfShuffles = (NumOfSrcs - 1) * NumOfDests; return NumOfShuffles * getShuffleCost(TTI::SK_PermuteTwoSrc, SingleOpTy, std::nullopt, CostKind, 0, nullptr); } return BaseT::getShuffleCost(Kind, BaseTp, Mask, CostKind, Index, SubTp); } // For 2-input shuffles, we must account for splitting the 2 inputs into many. if (Kind == TTI::SK_PermuteTwoSrc && LT.first != 1) { // We assume that source and destination have the same vector type. InstructionCost NumOfDests = LT.first; InstructionCost NumOfShufflesPerDest = LT.first * 2 - 1; LT.first = NumOfDests * NumOfShufflesPerDest; } static const CostTblEntry AVX512VBMIShuffleTbl[] = { {TTI::SK_Reverse, MVT::v64i8, 1}, // vpermb {TTI::SK_Reverse, MVT::v32i8, 1}, // vpermb {TTI::SK_PermuteSingleSrc, MVT::v64i8, 1}, // vpermb {TTI::SK_PermuteSingleSrc, MVT::v32i8, 1}, // vpermb {TTI::SK_PermuteTwoSrc, MVT::v64i8, 2}, // vpermt2b {TTI::SK_PermuteTwoSrc, MVT::v32i8, 2}, // vpermt2b {TTI::SK_PermuteTwoSrc, MVT::v16i8, 2} // vpermt2b }; if (ST->hasVBMI()) if (const auto *Entry = CostTableLookup(AVX512VBMIShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; static const CostTblEntry AVX512BWShuffleTbl[] = { {TTI::SK_Broadcast, MVT::v32i16, 1}, // vpbroadcastw {TTI::SK_Broadcast, MVT::v32f16, 1}, // vpbroadcastw {TTI::SK_Broadcast, MVT::v64i8, 1}, // vpbroadcastb {TTI::SK_Reverse, MVT::v32i16, 2}, // vpermw {TTI::SK_Reverse, MVT::v32f16, 2}, // vpermw {TTI::SK_Reverse, MVT::v16i16, 2}, // vpermw {TTI::SK_Reverse, MVT::v64i8, 2}, // pshufb + vshufi64x2 {TTI::SK_PermuteSingleSrc, MVT::v32i16, 2}, // vpermw {TTI::SK_PermuteSingleSrc, MVT::v32f16, 2}, // vpermw {TTI::SK_PermuteSingleSrc, MVT::v16i16, 2}, // vpermw {TTI::SK_PermuteSingleSrc, MVT::v16f16, 2}, // vpermw {TTI::SK_PermuteSingleSrc, MVT::v64i8, 8}, // extend to v32i16 {TTI::SK_PermuteTwoSrc, MVT::v32i16, 2}, // vpermt2w {TTI::SK_PermuteTwoSrc, MVT::v32f16, 2}, // vpermt2w {TTI::SK_PermuteTwoSrc, MVT::v16i16, 2}, // vpermt2w {TTI::SK_PermuteTwoSrc, MVT::v8i16, 2}, // vpermt2w {TTI::SK_PermuteTwoSrc, MVT::v64i8, 19}, // 6 * v32i8 + 1 {TTI::SK_Select, MVT::v32i16, 1}, // vblendmw {TTI::SK_Select, MVT::v64i8, 1}, // vblendmb {TTI::SK_Splice, MVT::v32i16, 2}, // vshufi64x2 + palignr {TTI::SK_Splice, MVT::v32f16, 2}, // vshufi64x2 + palignr {TTI::SK_Splice, MVT::v64i8, 2}, // vshufi64x2 + palignr }; if (ST->hasBWI()) if (const auto *Entry = CostTableLookup(AVX512BWShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; static const CostKindTblEntry AVX512ShuffleTbl[] = { {TTI::SK_Broadcast, MVT::v8f64, { 1, 1, 1, 1 } }, // vbroadcastsd {TTI::SK_Broadcast, MVT::v16f32, { 1, 1, 1, 1 } }, // vbroadcastss {TTI::SK_Broadcast, MVT::v8i64, { 1, 1, 1, 1 } }, // vpbroadcastq {TTI::SK_Broadcast, MVT::v16i32, { 1, 1, 1, 1 } }, // vpbroadcastd {TTI::SK_Broadcast, MVT::v32i16, { 1, 1, 1, 1 } }, // vpbroadcastw {TTI::SK_Broadcast, MVT::v32f16, { 1, 1, 1, 1 } }, // vpbroadcastw {TTI::SK_Broadcast, MVT::v64i8, { 1, 1, 1, 1 } }, // vpbroadcastb {TTI::SK_Reverse, MVT::v8f64, { 1, 3, 1, 1 } }, // vpermpd {TTI::SK_Reverse, MVT::v16f32, { 1, 3, 1, 1 } }, // vpermps {TTI::SK_Reverse, MVT::v8i64, { 1, 3, 1, 1 } }, // vpermq {TTI::SK_Reverse, MVT::v16i32, { 1, 3, 1, 1 } }, // vpermd {TTI::SK_Reverse, MVT::v32i16, { 7, 7, 7, 7 } }, // per mca {TTI::SK_Reverse, MVT::v32f16, { 7, 7, 7, 7 } }, // per mca {TTI::SK_Reverse, MVT::v64i8, { 7, 7, 7, 7 } }, // per mca {TTI::SK_Splice, MVT::v8f64, { 1, 1, 1, 1 } }, // vpalignd {TTI::SK_Splice, MVT::v4f64, { 1, 1, 1, 1 } }, // vpalignd {TTI::SK_Splice, MVT::v16f32, { 1, 1, 1, 1 } }, // vpalignd {TTI::SK_Splice, MVT::v8f32, { 1, 1, 1, 1 } }, // vpalignd {TTI::SK_Splice, MVT::v8i64, { 1, 1, 1, 1 } }, // vpalignd {TTI::SK_Splice, MVT::v4i64, { 1, 1, 1, 1 } }, // vpalignd {TTI::SK_Splice, MVT::v16i32, { 1, 1, 1, 1 } }, // vpalignd {TTI::SK_Splice, MVT::v8i32, { 1, 1, 1, 1 } }, // vpalignd {TTI::SK_Splice, MVT::v32i16, { 4, 4, 4, 4 } }, // split + palignr {TTI::SK_Splice, MVT::v32f16, { 4, 4, 4, 4 } }, // split + palignr {TTI::SK_Splice, MVT::v64i8, { 4, 4, 4, 4 } }, // split + palignr {TTI::SK_PermuteSingleSrc, MVT::v8f64, { 1, 3, 1, 1 } }, // vpermpd {TTI::SK_PermuteSingleSrc, MVT::v4f64, { 1, 3, 1, 1 } }, // vpermpd {TTI::SK_PermuteSingleSrc, MVT::v2f64, { 1, 3, 1, 1 } }, // vpermpd {TTI::SK_PermuteSingleSrc, MVT::v16f32, { 1, 3, 1, 1 } }, // vpermps {TTI::SK_PermuteSingleSrc, MVT::v8f32, { 1, 3, 1, 1 } }, // vpermps {TTI::SK_PermuteSingleSrc, MVT::v4f32, { 1, 3, 1, 1 } }, // vpermps {TTI::SK_PermuteSingleSrc, MVT::v8i64, { 1, 3, 1, 1 } }, // vpermq {TTI::SK_PermuteSingleSrc, MVT::v4i64, { 1, 3, 1, 1 } }, // vpermq {TTI::SK_PermuteSingleSrc, MVT::v2i64, { 1, 3, 1, 1 } }, // vpermq {TTI::SK_PermuteSingleSrc, MVT::v16i32, { 1, 3, 1, 1 } }, // vpermd {TTI::SK_PermuteSingleSrc, MVT::v8i32, { 1, 3, 1, 1 } }, // vpermd {TTI::SK_PermuteSingleSrc, MVT::v4i32, { 1, 3, 1, 1 } }, // vpermd {TTI::SK_PermuteSingleSrc, MVT::v16i8, { 1, 3, 1, 1 } }, // pshufb {TTI::SK_PermuteTwoSrc, MVT::v8f64, { 1, 3, 1, 1 } }, // vpermt2pd {TTI::SK_PermuteTwoSrc, MVT::v16f32, { 1, 3, 1, 1 } }, // vpermt2ps {TTI::SK_PermuteTwoSrc, MVT::v8i64, { 1, 3, 1, 1 } }, // vpermt2q {TTI::SK_PermuteTwoSrc, MVT::v16i32, { 1, 3, 1, 1 } }, // vpermt2d {TTI::SK_PermuteTwoSrc, MVT::v4f64, { 1, 3, 1, 1 } }, // vpermt2pd {TTI::SK_PermuteTwoSrc, MVT::v8f32, { 1, 3, 1, 1 } }, // vpermt2ps {TTI::SK_PermuteTwoSrc, MVT::v4i64, { 1, 3, 1, 1 } }, // vpermt2q {TTI::SK_PermuteTwoSrc, MVT::v8i32, { 1, 3, 1, 1 } }, // vpermt2d {TTI::SK_PermuteTwoSrc, MVT::v2f64, { 1, 3, 1, 1 } }, // vpermt2pd {TTI::SK_PermuteTwoSrc, MVT::v4f32, { 1, 3, 1, 1 } }, // vpermt2ps {TTI::SK_PermuteTwoSrc, MVT::v2i64, { 1, 3, 1, 1 } }, // vpermt2q {TTI::SK_PermuteTwoSrc, MVT::v4i32, { 1, 3, 1, 1 } }, // vpermt2d // FIXME: This just applies the type legalization cost rules above // assuming these completely split. {TTI::SK_PermuteSingleSrc, MVT::v32i16, { 14, 14, 14, 14 } }, {TTI::SK_PermuteSingleSrc, MVT::v32f16, { 14, 14, 14, 14 } }, {TTI::SK_PermuteSingleSrc, MVT::v64i8, { 14, 14, 14, 14 } }, {TTI::SK_PermuteTwoSrc, MVT::v32i16, { 42, 42, 42, 42 } }, {TTI::SK_PermuteTwoSrc, MVT::v32f16, { 42, 42, 42, 42 } }, {TTI::SK_PermuteTwoSrc, MVT::v64i8, { 42, 42, 42, 42 } }, {TTI::SK_Select, MVT::v32i16, { 1, 1, 1, 1 } }, // vpternlogq {TTI::SK_Select, MVT::v32f16, { 1, 1, 1, 1 } }, // vpternlogq {TTI::SK_Select, MVT::v64i8, { 1, 1, 1, 1 } }, // vpternlogq {TTI::SK_Select, MVT::v8f64, { 1, 1, 1, 1 } }, // vblendmpd {TTI::SK_Select, MVT::v16f32, { 1, 1, 1, 1 } }, // vblendmps {TTI::SK_Select, MVT::v8i64, { 1, 1, 1, 1 } }, // vblendmq {TTI::SK_Select, MVT::v16i32, { 1, 1, 1, 1 } }, // vblendmd }; if (ST->hasAVX512()) if (const auto *Entry = CostTableLookup(AVX512ShuffleTbl, Kind, LT.second)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * *KindCost; static const CostTblEntry AVX2ShuffleTbl[] = { {TTI::SK_Broadcast, MVT::v4f64, 1}, // vbroadcastpd {TTI::SK_Broadcast, MVT::v8f32, 1}, // vbroadcastps {TTI::SK_Broadcast, MVT::v4i64, 1}, // vpbroadcastq {TTI::SK_Broadcast, MVT::v8i32, 1}, // vpbroadcastd {TTI::SK_Broadcast, MVT::v16i16, 1}, // vpbroadcastw {TTI::SK_Broadcast, MVT::v16f16, 1}, // vpbroadcastw {TTI::SK_Broadcast, MVT::v32i8, 1}, // vpbroadcastb {TTI::SK_Reverse, MVT::v4f64, 1}, // vpermpd {TTI::SK_Reverse, MVT::v8f32, 1}, // vpermps {TTI::SK_Reverse, MVT::v4i64, 1}, // vpermq {TTI::SK_Reverse, MVT::v8i32, 1}, // vpermd {TTI::SK_Reverse, MVT::v16i16, 2}, // vperm2i128 + pshufb {TTI::SK_Reverse, MVT::v16f16, 2}, // vperm2i128 + pshufb {TTI::SK_Reverse, MVT::v32i8, 2}, // vperm2i128 + pshufb {TTI::SK_Select, MVT::v16i16, 1}, // vpblendvb {TTI::SK_Select, MVT::v16f16, 1}, // vpblendvb {TTI::SK_Select, MVT::v32i8, 1}, // vpblendvb {TTI::SK_Splice, MVT::v8i32, 2}, // vperm2i128 + vpalignr {TTI::SK_Splice, MVT::v8f32, 2}, // vperm2i128 + vpalignr {TTI::SK_Splice, MVT::v16i16, 2}, // vperm2i128 + vpalignr {TTI::SK_Splice, MVT::v16f16, 2}, // vperm2i128 + vpalignr {TTI::SK_Splice, MVT::v32i8, 2}, // vperm2i128 + vpalignr {TTI::SK_PermuteSingleSrc, MVT::v4f64, 1}, // vpermpd {TTI::SK_PermuteSingleSrc, MVT::v8f32, 1}, // vpermps {TTI::SK_PermuteSingleSrc, MVT::v4i64, 1}, // vpermq {TTI::SK_PermuteSingleSrc, MVT::v8i32, 1}, // vpermd {TTI::SK_PermuteSingleSrc, MVT::v16i16, 4}, // vperm2i128 + 2*vpshufb // + vpblendvb {TTI::SK_PermuteSingleSrc, MVT::v16f16, 4}, // vperm2i128 + 2*vpshufb // + vpblendvb {TTI::SK_PermuteSingleSrc, MVT::v32i8, 4}, // vperm2i128 + 2*vpshufb // + vpblendvb {TTI::SK_PermuteTwoSrc, MVT::v4f64, 3}, // 2*vpermpd + vblendpd {TTI::SK_PermuteTwoSrc, MVT::v8f32, 3}, // 2*vpermps + vblendps {TTI::SK_PermuteTwoSrc, MVT::v4i64, 3}, // 2*vpermq + vpblendd {TTI::SK_PermuteTwoSrc, MVT::v8i32, 3}, // 2*vpermd + vpblendd {TTI::SK_PermuteTwoSrc, MVT::v16i16, 7}, // 2*vperm2i128 + 4*vpshufb // + vpblendvb {TTI::SK_PermuteTwoSrc, MVT::v16f16, 7}, // 2*vperm2i128 + 4*vpshufb // + vpblendvb {TTI::SK_PermuteTwoSrc, MVT::v32i8, 7}, // 2*vperm2i128 + 4*vpshufb // + vpblendvb }; if (ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2ShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; static const CostTblEntry XOPShuffleTbl[] = { {TTI::SK_PermuteSingleSrc, MVT::v4f64, 2}, // vperm2f128 + vpermil2pd {TTI::SK_PermuteSingleSrc, MVT::v8f32, 2}, // vperm2f128 + vpermil2ps {TTI::SK_PermuteSingleSrc, MVT::v4i64, 2}, // vperm2f128 + vpermil2pd {TTI::SK_PermuteSingleSrc, MVT::v8i32, 2}, // vperm2f128 + vpermil2ps {TTI::SK_PermuteSingleSrc, MVT::v16i16, 4}, // vextractf128 + 2*vpperm // + vinsertf128 {TTI::SK_PermuteSingleSrc, MVT::v32i8, 4}, // vextractf128 + 2*vpperm // + vinsertf128 {TTI::SK_PermuteTwoSrc, MVT::v16i16, 9}, // 2*vextractf128 + 6*vpperm // + vinsertf128 {TTI::SK_PermuteTwoSrc, MVT::v8i16, 1}, // vpperm {TTI::SK_PermuteTwoSrc, MVT::v32i8, 9}, // 2*vextractf128 + 6*vpperm // + vinsertf128 {TTI::SK_PermuteTwoSrc, MVT::v16i8, 1}, // vpperm }; if (ST->hasXOP()) if (const auto *Entry = CostTableLookup(XOPShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; static const CostTblEntry AVX1ShuffleTbl[] = { {TTI::SK_Broadcast, MVT::v4f64, 2}, // vperm2f128 + vpermilpd {TTI::SK_Broadcast, MVT::v8f32, 2}, // vperm2f128 + vpermilps {TTI::SK_Broadcast, MVT::v4i64, 2}, // vperm2f128 + vpermilpd {TTI::SK_Broadcast, MVT::v8i32, 2}, // vperm2f128 + vpermilps {TTI::SK_Broadcast, MVT::v16i16, 3}, // vpshuflw + vpshufd + vinsertf128 {TTI::SK_Broadcast, MVT::v16f16, 3}, // vpshuflw + vpshufd + vinsertf128 {TTI::SK_Broadcast, MVT::v32i8, 2}, // vpshufb + vinsertf128 {TTI::SK_Reverse, MVT::v4f64, 2}, // vperm2f128 + vpermilpd {TTI::SK_Reverse, MVT::v8f32, 2}, // vperm2f128 + vpermilps {TTI::SK_Reverse, MVT::v4i64, 2}, // vperm2f128 + vpermilpd {TTI::SK_Reverse, MVT::v8i32, 2}, // vperm2f128 + vpermilps {TTI::SK_Reverse, MVT::v16i16, 4}, // vextractf128 + 2*pshufb // + vinsertf128 {TTI::SK_Reverse, MVT::v16f16, 4}, // vextractf128 + 2*pshufb // + vinsertf128 {TTI::SK_Reverse, MVT::v32i8, 4}, // vextractf128 + 2*pshufb // + vinsertf128 {TTI::SK_Select, MVT::v4i64, 1}, // vblendpd {TTI::SK_Select, MVT::v4f64, 1}, // vblendpd {TTI::SK_Select, MVT::v8i32, 1}, // vblendps {TTI::SK_Select, MVT::v8f32, 1}, // vblendps {TTI::SK_Select, MVT::v16i16, 3}, // vpand + vpandn + vpor {TTI::SK_Select, MVT::v16f16, 3}, // vpand + vpandn + vpor {TTI::SK_Select, MVT::v32i8, 3}, // vpand + vpandn + vpor {TTI::SK_Splice, MVT::v4i64, 2}, // vperm2f128 + shufpd {TTI::SK_Splice, MVT::v4f64, 2}, // vperm2f128 + shufpd {TTI::SK_Splice, MVT::v8i32, 4}, // 2*vperm2f128 + 2*vshufps {TTI::SK_Splice, MVT::v8f32, 4}, // 2*vperm2f128 + 2*vshufps {TTI::SK_Splice, MVT::v16i16, 5}, // 2*vperm2f128 + 2*vpalignr + vinsertf128 {TTI::SK_Splice, MVT::v16f16, 5}, // 2*vperm2f128 + 2*vpalignr + vinsertf128 {TTI::SK_Splice, MVT::v32i8, 5}, // 2*vperm2f128 + 2*vpalignr + vinsertf128 {TTI::SK_PermuteSingleSrc, MVT::v4f64, 2}, // vperm2f128 + vshufpd {TTI::SK_PermuteSingleSrc, MVT::v4i64, 2}, // vperm2f128 + vshufpd {TTI::SK_PermuteSingleSrc, MVT::v8f32, 4}, // 2*vperm2f128 + 2*vshufps {TTI::SK_PermuteSingleSrc, MVT::v8i32, 4}, // 2*vperm2f128 + 2*vshufps {TTI::SK_PermuteSingleSrc, MVT::v16i16, 8}, // vextractf128 + 4*pshufb // + 2*por + vinsertf128 {TTI::SK_PermuteSingleSrc, MVT::v16f16, 8}, // vextractf128 + 4*pshufb // + 2*por + vinsertf128 {TTI::SK_PermuteSingleSrc, MVT::v32i8, 8}, // vextractf128 + 4*pshufb // + 2*por + vinsertf128 {TTI::SK_PermuteTwoSrc, MVT::v4f64, 3}, // 2*vperm2f128 + vshufpd {TTI::SK_PermuteTwoSrc, MVT::v4i64, 3}, // 2*vperm2f128 + vshufpd {TTI::SK_PermuteTwoSrc, MVT::v8f32, 4}, // 2*vperm2f128 + 2*vshufps {TTI::SK_PermuteTwoSrc, MVT::v8i32, 4}, // 2*vperm2f128 + 2*vshufps {TTI::SK_PermuteTwoSrc, MVT::v16i16, 15}, // 2*vextractf128 + 8*pshufb // + 4*por + vinsertf128 {TTI::SK_PermuteTwoSrc, MVT::v16f16, 15}, // 2*vextractf128 + 8*pshufb // + 4*por + vinsertf128 {TTI::SK_PermuteTwoSrc, MVT::v32i8, 15}, // 2*vextractf128 + 8*pshufb // + 4*por + vinsertf128 }; if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1ShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; static const CostTblEntry SSE41ShuffleTbl[] = { {TTI::SK_Select, MVT::v2i64, 1}, // pblendw {TTI::SK_Select, MVT::v2f64, 1}, // movsd {TTI::SK_Select, MVT::v4i32, 1}, // pblendw {TTI::SK_Select, MVT::v4f32, 1}, // blendps {TTI::SK_Select, MVT::v8i16, 1}, // pblendw {TTI::SK_Select, MVT::v8f16, 1}, // pblendw {TTI::SK_Select, MVT::v16i8, 1} // pblendvb }; if (ST->hasSSE41()) if (const auto *Entry = CostTableLookup(SSE41ShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; static const CostTblEntry SSSE3ShuffleTbl[] = { {TTI::SK_Broadcast, MVT::v8i16, 1}, // pshufb {TTI::SK_Broadcast, MVT::v8f16, 1}, // pshufb {TTI::SK_Broadcast, MVT::v16i8, 1}, // pshufb {TTI::SK_Reverse, MVT::v8i16, 1}, // pshufb {TTI::SK_Reverse, MVT::v8f16, 1}, // pshufb {TTI::SK_Reverse, MVT::v16i8, 1}, // pshufb {TTI::SK_Select, MVT::v8i16, 3}, // 2*pshufb + por {TTI::SK_Select, MVT::v8f16, 3}, // 2*pshufb + por {TTI::SK_Select, MVT::v16i8, 3}, // 2*pshufb + por {TTI::SK_Splice, MVT::v4i32, 1}, // palignr {TTI::SK_Splice, MVT::v4f32, 1}, // palignr {TTI::SK_Splice, MVT::v8i16, 1}, // palignr {TTI::SK_Splice, MVT::v8f16, 1}, // palignr {TTI::SK_Splice, MVT::v16i8, 1}, // palignr {TTI::SK_PermuteSingleSrc, MVT::v8i16, 1}, // pshufb {TTI::SK_PermuteSingleSrc, MVT::v8f16, 1}, // pshufb {TTI::SK_PermuteSingleSrc, MVT::v16i8, 1}, // pshufb {TTI::SK_PermuteTwoSrc, MVT::v8i16, 3}, // 2*pshufb + por {TTI::SK_PermuteTwoSrc, MVT::v8f16, 3}, // 2*pshufb + por {TTI::SK_PermuteTwoSrc, MVT::v16i8, 3}, // 2*pshufb + por }; if (ST->hasSSSE3()) if (const auto *Entry = CostTableLookup(SSSE3ShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; static const CostTblEntry SSE2ShuffleTbl[] = { {TTI::SK_Broadcast, MVT::v2f64, 1}, // shufpd {TTI::SK_Broadcast, MVT::v2i64, 1}, // pshufd {TTI::SK_Broadcast, MVT::v4i32, 1}, // pshufd {TTI::SK_Broadcast, MVT::v8i16, 2}, // pshuflw + pshufd {TTI::SK_Broadcast, MVT::v8f16, 2}, // pshuflw + pshufd {TTI::SK_Broadcast, MVT::v16i8, 3}, // unpck + pshuflw + pshufd {TTI::SK_Reverse, MVT::v2f64, 1}, // shufpd {TTI::SK_Reverse, MVT::v2i64, 1}, // pshufd {TTI::SK_Reverse, MVT::v4i32, 1}, // pshufd {TTI::SK_Reverse, MVT::v8i16, 3}, // pshuflw + pshufhw + pshufd {TTI::SK_Reverse, MVT::v8f16, 3}, // pshuflw + pshufhw + pshufd {TTI::SK_Reverse, MVT::v16i8, 9}, // 2*pshuflw + 2*pshufhw // + 2*pshufd + 2*unpck + packus {TTI::SK_Select, MVT::v2i64, 1}, // movsd {TTI::SK_Select, MVT::v2f64, 1}, // movsd {TTI::SK_Select, MVT::v4i32, 2}, // 2*shufps {TTI::SK_Select, MVT::v8i16, 3}, // pand + pandn + por {TTI::SK_Select, MVT::v8f16, 3}, // pand + pandn + por {TTI::SK_Select, MVT::v16i8, 3}, // pand + pandn + por {TTI::SK_Splice, MVT::v2i64, 1}, // shufpd {TTI::SK_Splice, MVT::v2f64, 1}, // shufpd {TTI::SK_Splice, MVT::v4i32, 2}, // 2*{unpck,movsd,pshufd} {TTI::SK_Splice, MVT::v8i16, 3}, // psrldq + psrlldq + por {TTI::SK_Splice, MVT::v8f16, 3}, // psrldq + psrlldq + por {TTI::SK_Splice, MVT::v16i8, 3}, // psrldq + psrlldq + por {TTI::SK_PermuteSingleSrc, MVT::v2f64, 1}, // shufpd {TTI::SK_PermuteSingleSrc, MVT::v2i64, 1}, // pshufd {TTI::SK_PermuteSingleSrc, MVT::v4i32, 1}, // pshufd {TTI::SK_PermuteSingleSrc, MVT::v8i16, 5}, // 2*pshuflw + 2*pshufhw // + pshufd/unpck {TTI::SK_PermuteSingleSrc, MVT::v8f16, 5}, // 2*pshuflw + 2*pshufhw // + pshufd/unpck { TTI::SK_PermuteSingleSrc, MVT::v16i8, 10 }, // 2*pshuflw + 2*pshufhw // + 2*pshufd + 2*unpck + 2*packus { TTI::SK_PermuteTwoSrc, MVT::v2f64, 1 }, // shufpd { TTI::SK_PermuteTwoSrc, MVT::v2i64, 1 }, // shufpd { TTI::SK_PermuteTwoSrc, MVT::v4i32, 2 }, // 2*{unpck,movsd,pshufd} { TTI::SK_PermuteTwoSrc, MVT::v8i16, 8 }, // blend+permute { TTI::SK_PermuteTwoSrc, MVT::v8f16, 8 }, // blend+permute { TTI::SK_PermuteTwoSrc, MVT::v16i8, 13 }, // blend+permute }; static const CostTblEntry SSE3BroadcastLoadTbl[] = { {TTI::SK_Broadcast, MVT::v2f64, 0}, // broadcast handled by movddup }; if (ST->hasSSE2()) { bool IsLoad = llvm::any_of(Args, [](const auto &V) { return isa(V); }); if (ST->hasSSE3() && IsLoad) if (const auto *Entry = CostTableLookup(SSE3BroadcastLoadTbl, Kind, LT.second)) { assert(isLegalBroadcastLoad(BaseTp->getElementType(), LT.second.getVectorElementCount()) && "Table entry missing from isLegalBroadcastLoad()"); return LT.first * Entry->Cost; } if (const auto *Entry = CostTableLookup(SSE2ShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; } static const CostTblEntry SSE1ShuffleTbl[] = { { TTI::SK_Broadcast, MVT::v4f32, 1 }, // shufps { TTI::SK_Reverse, MVT::v4f32, 1 }, // shufps { TTI::SK_Select, MVT::v4f32, 2 }, // 2*shufps { TTI::SK_Splice, MVT::v4f32, 2 }, // 2*shufps { TTI::SK_PermuteSingleSrc, MVT::v4f32, 1 }, // shufps { TTI::SK_PermuteTwoSrc, MVT::v4f32, 2 }, // 2*shufps }; if (ST->hasSSE1()) if (const auto *Entry = CostTableLookup(SSE1ShuffleTbl, Kind, LT.second)) return LT.first * Entry->Cost; return BaseT::getShuffleCost(Kind, BaseTp, Mask, CostKind, Index, SubTp); } InstructionCost X86TTIImpl::getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src, TTI::CastContextHint CCH, TTI::TargetCostKind CostKind, const Instruction *I) { int ISD = TLI->InstructionOpcodeToISD(Opcode); assert(ISD && "Invalid opcode"); // TODO: Allow non-throughput costs that aren't binary. auto AdjustCost = [&CostKind](InstructionCost Cost) -> InstructionCost { if (CostKind != TTI::TCK_RecipThroughput) return Cost == 0 ? 0 : 1; return Cost; }; // The cost tables include both specific, custom (non-legal) src/dst type // conversions and generic, legalized types. We test for customs first, before // falling back to legalization. // FIXME: Need a better design of the cost table to handle non-simple types of // potential massive combinations (elem_num x src_type x dst_type). static const TypeConversionCostTblEntry AVX512BWConversionTbl[] { { ISD::SIGN_EXTEND, MVT::v32i16, MVT::v32i8, 1 }, { ISD::ZERO_EXTEND, MVT::v32i16, MVT::v32i8, 1 }, // Mask sign extend has an instruction. { ISD::SIGN_EXTEND, MVT::v2i8, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v2i16, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i8, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i16, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i8, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v16i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i1, 1 }, { ISD::SIGN_EXTEND, MVT::v32i8, MVT::v32i1, 1 }, { ISD::SIGN_EXTEND, MVT::v32i16, MVT::v32i1, 1 }, { ISD::SIGN_EXTEND, MVT::v64i8, MVT::v64i1, 1 }, { ISD::SIGN_EXTEND, MVT::v32i16, MVT::v64i1, 1 }, // Mask zero extend is a sext + shift. { ISD::ZERO_EXTEND, MVT::v2i8, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v2i16, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i8, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i16, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i8, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v16i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i1, 2 }, { ISD::ZERO_EXTEND, MVT::v32i8, MVT::v32i1, 2 }, { ISD::ZERO_EXTEND, MVT::v32i16, MVT::v32i1, 2 }, { ISD::ZERO_EXTEND, MVT::v64i8, MVT::v64i1, 2 }, { ISD::ZERO_EXTEND, MVT::v32i16, MVT::v64i1, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v2i8, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v16i8, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v2i16, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v8i16, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i8, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v16i8, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i16, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v8i16, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i8, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v16i8, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i16, 2 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v16i8, 2 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v16i16, 2 }, { ISD::TRUNCATE, MVT::v32i1, MVT::v32i8, 2 }, { ISD::TRUNCATE, MVT::v32i1, MVT::v32i16, 2 }, { ISD::TRUNCATE, MVT::v64i1, MVT::v64i8, 2 }, { ISD::TRUNCATE, MVT::v64i1, MVT::v32i16, 2 }, { ISD::TRUNCATE, MVT::v32i8, MVT::v32i16, 2 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v16i16, 2 }, // widen to zmm { ISD::TRUNCATE, MVT::v2i8, MVT::v2i16, 2 }, // vpmovwb { ISD::TRUNCATE, MVT::v4i8, MVT::v4i16, 2 }, // vpmovwb { ISD::TRUNCATE, MVT::v8i8, MVT::v8i16, 2 }, // vpmovwb }; static const TypeConversionCostTblEntry AVX512DQConversionTbl[] = { // Mask sign extend has an instruction. { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i64, MVT::v16i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i64, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i32, MVT::v16i1, 1 }, // Mask zero extend is a sext + shift. { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i64, MVT::v16i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i64, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i32, MVT::v16i1, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v2i64, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v4i32, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i32, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i64, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i32, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i64, 2 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v16i32, 2 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v8i64, 2 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i64, 1 }, { ISD::SINT_TO_FP, MVT::v8f64, MVT::v8i64, 1 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i64, 1 }, { ISD::UINT_TO_FP, MVT::v8f64, MVT::v8i64, 1 }, { ISD::FP_TO_SINT, MVT::v8i64, MVT::v8f32, 1 }, { ISD::FP_TO_SINT, MVT::v8i64, MVT::v8f64, 1 }, { ISD::FP_TO_UINT, MVT::v8i64, MVT::v8f32, 1 }, { ISD::FP_TO_UINT, MVT::v8i64, MVT::v8f64, 1 }, }; // TODO: For AVX512DQ + AVX512VL, we also have cheap casts for 128-bit and // 256-bit wide vectors. static const TypeConversionCostTblEntry AVX512FConversionTbl[] = { { ISD::FP_EXTEND, MVT::v8f64, MVT::v8f32, 1 }, { ISD::FP_EXTEND, MVT::v8f64, MVT::v16f32, 3 }, { ISD::FP_EXTEND, MVT::v16f64, MVT::v16f32, 4 }, // 2*vcvtps2pd+vextractf64x4 { ISD::FP_ROUND, MVT::v8f32, MVT::v8f64, 1 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v2i8, 3 }, // sext+vpslld+vptestmd { ISD::TRUNCATE, MVT::v4i1, MVT::v4i8, 3 }, // sext+vpslld+vptestmd { ISD::TRUNCATE, MVT::v8i1, MVT::v8i8, 3 }, // sext+vpslld+vptestmd { ISD::TRUNCATE, MVT::v16i1, MVT::v16i8, 3 }, // sext+vpslld+vptestmd { ISD::TRUNCATE, MVT::v2i1, MVT::v2i16, 3 }, // sext+vpsllq+vptestmq { ISD::TRUNCATE, MVT::v4i1, MVT::v4i16, 3 }, // sext+vpsllq+vptestmq { ISD::TRUNCATE, MVT::v8i1, MVT::v8i16, 3 }, // sext+vpsllq+vptestmq { ISD::TRUNCATE, MVT::v16i1, MVT::v16i16, 3 }, // sext+vpslld+vptestmd { ISD::TRUNCATE, MVT::v2i1, MVT::v2i32, 2 }, // zmm vpslld+vptestmd { ISD::TRUNCATE, MVT::v4i1, MVT::v4i32, 2 }, // zmm vpslld+vptestmd { ISD::TRUNCATE, MVT::v8i1, MVT::v8i32, 2 }, // zmm vpslld+vptestmd { ISD::TRUNCATE, MVT::v16i1, MVT::v16i32, 2 }, // vpslld+vptestmd { ISD::TRUNCATE, MVT::v2i1, MVT::v2i64, 2 }, // zmm vpsllq+vptestmq { ISD::TRUNCATE, MVT::v4i1, MVT::v4i64, 2 }, // zmm vpsllq+vptestmq { ISD::TRUNCATE, MVT::v8i1, MVT::v8i64, 2 }, // vpsllq+vptestmq { ISD::TRUNCATE, MVT::v2i8, MVT::v2i32, 2 }, // vpmovdb { ISD::TRUNCATE, MVT::v4i8, MVT::v4i32, 2 }, // vpmovdb { ISD::TRUNCATE, MVT::v16i8, MVT::v16i32, 2 }, // vpmovdb { ISD::TRUNCATE, MVT::v32i8, MVT::v16i32, 2 }, // vpmovdb { ISD::TRUNCATE, MVT::v64i8, MVT::v16i32, 2 }, // vpmovdb { ISD::TRUNCATE, MVT::v16i16, MVT::v16i32, 2 }, // vpmovdw { ISD::TRUNCATE, MVT::v32i16, MVT::v16i32, 2 }, // vpmovdw { ISD::TRUNCATE, MVT::v2i8, MVT::v2i64, 2 }, // vpmovqb { ISD::TRUNCATE, MVT::v2i16, MVT::v2i64, 1 }, // vpshufb { ISD::TRUNCATE, MVT::v8i8, MVT::v8i64, 2 }, // vpmovqb { ISD::TRUNCATE, MVT::v16i8, MVT::v8i64, 2 }, // vpmovqb { ISD::TRUNCATE, MVT::v32i8, MVT::v8i64, 2 }, // vpmovqb { ISD::TRUNCATE, MVT::v64i8, MVT::v8i64, 2 }, // vpmovqb { ISD::TRUNCATE, MVT::v8i16, MVT::v8i64, 2 }, // vpmovqw { ISD::TRUNCATE, MVT::v16i16, MVT::v8i64, 2 }, // vpmovqw { ISD::TRUNCATE, MVT::v32i16, MVT::v8i64, 2 }, // vpmovqw { ISD::TRUNCATE, MVT::v8i32, MVT::v8i64, 1 }, // vpmovqd { ISD::TRUNCATE, MVT::v4i32, MVT::v4i64, 1 }, // zmm vpmovqd { ISD::TRUNCATE, MVT::v16i8, MVT::v16i64, 5 },// 2*vpmovqd+concat+vpmovdb { ISD::TRUNCATE, MVT::v16i8, MVT::v16i16, 3 }, // extend to v16i32 { ISD::TRUNCATE, MVT::v32i8, MVT::v32i16, 8 }, { ISD::TRUNCATE, MVT::v64i8, MVT::v32i16, 8 }, // Sign extend is zmm vpternlogd+vptruncdb. // Zero extend is zmm broadcast load+vptruncdw. { ISD::SIGN_EXTEND, MVT::v2i8, MVT::v2i1, 3 }, { ISD::ZERO_EXTEND, MVT::v2i8, MVT::v2i1, 4 }, { ISD::SIGN_EXTEND, MVT::v4i8, MVT::v4i1, 3 }, { ISD::ZERO_EXTEND, MVT::v4i8, MVT::v4i1, 4 }, { ISD::SIGN_EXTEND, MVT::v8i8, MVT::v8i1, 3 }, { ISD::ZERO_EXTEND, MVT::v8i8, MVT::v8i1, 4 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v16i1, 3 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v16i1, 4 }, // Sign extend is zmm vpternlogd+vptruncdw. // Zero extend is zmm vpternlogd+vptruncdw+vpsrlw. { ISD::SIGN_EXTEND, MVT::v2i16, MVT::v2i1, 3 }, { ISD::ZERO_EXTEND, MVT::v2i16, MVT::v2i1, 4 }, { ISD::SIGN_EXTEND, MVT::v4i16, MVT::v4i1, 3 }, { ISD::ZERO_EXTEND, MVT::v4i16, MVT::v4i1, 4 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v8i1, 3 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v8i1, 4 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i1, 3 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i1, 4 }, { ISD::SIGN_EXTEND, MVT::v2i32, MVT::v2i1, 1 }, // zmm vpternlogd { ISD::ZERO_EXTEND, MVT::v2i32, MVT::v2i1, 2 }, // zmm vpternlogd+psrld { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v4i1, 1 }, // zmm vpternlogd { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v4i1, 2 }, // zmm vpternlogd+psrld { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 1 }, // zmm vpternlogd { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 2 }, // zmm vpternlogd+psrld { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v2i1, 1 }, // zmm vpternlogq { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v2i1, 2 }, // zmm vpternlogq+psrlq { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i1, 1 }, // zmm vpternlogq { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i1, 2 }, // zmm vpternlogq+psrlq { ISD::SIGN_EXTEND, MVT::v16i32, MVT::v16i1, 1 }, // vpternlogd { ISD::ZERO_EXTEND, MVT::v16i32, MVT::v16i1, 2 }, // vpternlogd+psrld { ISD::SIGN_EXTEND, MVT::v8i64, MVT::v8i1, 1 }, // vpternlogq { ISD::ZERO_EXTEND, MVT::v8i64, MVT::v8i1, 2 }, // vpternlogq+psrlq { ISD::SIGN_EXTEND, MVT::v16i32, MVT::v16i8, 1 }, { ISD::ZERO_EXTEND, MVT::v16i32, MVT::v16i8, 1 }, { ISD::SIGN_EXTEND, MVT::v16i32, MVT::v16i16, 1 }, { ISD::ZERO_EXTEND, MVT::v16i32, MVT::v16i16, 1 }, { ISD::SIGN_EXTEND, MVT::v8i64, MVT::v8i8, 1 }, { ISD::ZERO_EXTEND, MVT::v8i64, MVT::v8i8, 1 }, { ISD::SIGN_EXTEND, MVT::v8i64, MVT::v8i16, 1 }, { ISD::ZERO_EXTEND, MVT::v8i64, MVT::v8i16, 1 }, { ISD::SIGN_EXTEND, MVT::v8i64, MVT::v8i32, 1 }, { ISD::ZERO_EXTEND, MVT::v8i64, MVT::v8i32, 1 }, { ISD::SIGN_EXTEND, MVT::v32i16, MVT::v32i8, 3 }, // FIXME: May not be right { ISD::ZERO_EXTEND, MVT::v32i16, MVT::v32i8, 3 }, // FIXME: May not be right { ISD::SINT_TO_FP, MVT::v8f64, MVT::v8i1, 4 }, { ISD::SINT_TO_FP, MVT::v16f32, MVT::v16i1, 3 }, { ISD::SINT_TO_FP, MVT::v8f64, MVT::v16i8, 2 }, { ISD::SINT_TO_FP, MVT::v16f32, MVT::v16i8, 1 }, { ISD::SINT_TO_FP, MVT::v8f64, MVT::v8i16, 2 }, { ISD::SINT_TO_FP, MVT::v16f32, MVT::v16i16, 1 }, { ISD::SINT_TO_FP, MVT::v8f64, MVT::v8i32, 1 }, { ISD::SINT_TO_FP, MVT::v16f32, MVT::v16i32, 1 }, { ISD::UINT_TO_FP, MVT::v8f64, MVT::v8i1, 4 }, { ISD::UINT_TO_FP, MVT::v16f32, MVT::v16i1, 3 }, { ISD::UINT_TO_FP, MVT::v8f64, MVT::v16i8, 2 }, { ISD::UINT_TO_FP, MVT::v16f32, MVT::v16i8, 1 }, { ISD::UINT_TO_FP, MVT::v8f64, MVT::v8i16, 2 }, { ISD::UINT_TO_FP, MVT::v16f32, MVT::v16i16, 1 }, { ISD::UINT_TO_FP, MVT::v8f64, MVT::v8i32, 1 }, { ISD::UINT_TO_FP, MVT::v16f32, MVT::v16i32, 1 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i64, 26 }, { ISD::UINT_TO_FP, MVT::v8f64, MVT::v8i64, 5 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v16f32, 2 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v16f64, 7 }, { ISD::FP_TO_SINT, MVT::v32i8, MVT::v32f64,15 }, { ISD::FP_TO_SINT, MVT::v64i8, MVT::v64f32,11 }, { ISD::FP_TO_SINT, MVT::v64i8, MVT::v64f64,31 }, { ISD::FP_TO_SINT, MVT::v8i16, MVT::v8f64, 3 }, { ISD::FP_TO_SINT, MVT::v16i16, MVT::v16f64, 7 }, { ISD::FP_TO_SINT, MVT::v32i16, MVT::v32f32, 5 }, { ISD::FP_TO_SINT, MVT::v32i16, MVT::v32f64,15 }, { ISD::FP_TO_SINT, MVT::v8i32, MVT::v8f64, 1 }, { ISD::FP_TO_SINT, MVT::v16i32, MVT::v16f64, 3 }, { ISD::FP_TO_UINT, MVT::v8i32, MVT::v8f64, 1 }, { ISD::FP_TO_UINT, MVT::v8i16, MVT::v8f64, 3 }, { ISD::FP_TO_UINT, MVT::v8i8, MVT::v8f64, 3 }, { ISD::FP_TO_UINT, MVT::v16i32, MVT::v16f32, 1 }, { ISD::FP_TO_UINT, MVT::v16i16, MVT::v16f32, 3 }, { ISD::FP_TO_UINT, MVT::v16i8, MVT::v16f32, 3 }, }; static const TypeConversionCostTblEntry AVX512BWVLConversionTbl[] { // Mask sign extend has an instruction. { ISD::SIGN_EXTEND, MVT::v2i8, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v2i16, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i16, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i8, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i8, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v16i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i1, 1 }, { ISD::SIGN_EXTEND, MVT::v32i8, MVT::v32i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v32i1, 1 }, { ISD::SIGN_EXTEND, MVT::v32i8, MVT::v64i1, 1 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v64i1, 1 }, // Mask zero extend is a sext + shift. { ISD::ZERO_EXTEND, MVT::v2i8, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v2i16, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i8, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i16, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i8, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v16i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i1, 2 }, { ISD::ZERO_EXTEND, MVT::v32i8, MVT::v32i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v32i1, 2 }, { ISD::ZERO_EXTEND, MVT::v32i8, MVT::v64i1, 2 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v64i1, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v2i8, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v16i8, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v2i16, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v8i16, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i8, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v16i8, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i16, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v8i16, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i8, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v16i8, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i16, 2 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v16i8, 2 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v16i16, 2 }, { ISD::TRUNCATE, MVT::v32i1, MVT::v32i8, 2 }, { ISD::TRUNCATE, MVT::v32i1, MVT::v16i16, 2 }, { ISD::TRUNCATE, MVT::v64i1, MVT::v32i8, 2 }, { ISD::TRUNCATE, MVT::v64i1, MVT::v16i16, 2 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v16i16, 2 }, }; static const TypeConversionCostTblEntry AVX512DQVLConversionTbl[] = { // Mask sign extend has an instruction. { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v2i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v16i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v8i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v16i1, 1 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 1 }, // Mask zero extend is a sext + shift. { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v2i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v16i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i1, 2 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v8i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v16i1, 2 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 2 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v4i64, 2 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v8i32, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v2i64, 2 }, { ISD::TRUNCATE, MVT::v2i1, MVT::v4i32, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i32, 2 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i64, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v4i64, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i32, 2 }, { ISD::SINT_TO_FP, MVT::v2f32, MVT::v2i64, 1 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v2i64, 1 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i64, 1 }, { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i64, 1 }, { ISD::UINT_TO_FP, MVT::v2f32, MVT::v2i64, 1 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v2i64, 1 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i64, 1 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i64, 1 }, { ISD::FP_TO_SINT, MVT::v2i64, MVT::v4f32, 1 }, { ISD::FP_TO_SINT, MVT::v4i64, MVT::v4f32, 1 }, { ISD::FP_TO_SINT, MVT::v2i64, MVT::v2f64, 1 }, { ISD::FP_TO_SINT, MVT::v4i64, MVT::v4f64, 1 }, { ISD::FP_TO_UINT, MVT::v2i64, MVT::v4f32, 1 }, { ISD::FP_TO_UINT, MVT::v4i64, MVT::v4f32, 1 }, { ISD::FP_TO_UINT, MVT::v2i64, MVT::v2f64, 1 }, { ISD::FP_TO_UINT, MVT::v4i64, MVT::v4f64, 1 }, }; static const TypeConversionCostTblEntry AVX512VLConversionTbl[] = { { ISD::TRUNCATE, MVT::v2i1, MVT::v2i8, 3 }, // sext+vpslld+vptestmd { ISD::TRUNCATE, MVT::v4i1, MVT::v4i8, 3 }, // sext+vpslld+vptestmd { ISD::TRUNCATE, MVT::v8i1, MVT::v8i8, 3 }, // sext+vpslld+vptestmd { ISD::TRUNCATE, MVT::v16i1, MVT::v16i8, 8 }, // split+2*v8i8 { ISD::TRUNCATE, MVT::v2i1, MVT::v2i16, 3 }, // sext+vpsllq+vptestmq { ISD::TRUNCATE, MVT::v4i1, MVT::v4i16, 3 }, // sext+vpsllq+vptestmq { ISD::TRUNCATE, MVT::v8i1, MVT::v8i16, 3 }, // sext+vpsllq+vptestmq { ISD::TRUNCATE, MVT::v16i1, MVT::v16i16, 8 }, // split+2*v8i16 { ISD::TRUNCATE, MVT::v2i1, MVT::v2i32, 2 }, // vpslld+vptestmd { ISD::TRUNCATE, MVT::v4i1, MVT::v4i32, 2 }, // vpslld+vptestmd { ISD::TRUNCATE, MVT::v8i1, MVT::v8i32, 2 }, // vpslld+vptestmd { ISD::TRUNCATE, MVT::v16i1, MVT::v8i32, 2 }, // vpslld+vptestmd { ISD::TRUNCATE, MVT::v2i1, MVT::v2i64, 2 }, // vpsllq+vptestmq { ISD::TRUNCATE, MVT::v4i1, MVT::v4i64, 2 }, // vpsllq+vptestmq { ISD::TRUNCATE, MVT::v4i32, MVT::v4i64, 1 }, // vpmovqd { ISD::TRUNCATE, MVT::v4i8, MVT::v4i64, 2 }, // vpmovqb { ISD::TRUNCATE, MVT::v4i16, MVT::v4i64, 2 }, // vpmovqw { ISD::TRUNCATE, MVT::v8i8, MVT::v8i32, 2 }, // vpmovwb // sign extend is vpcmpeq+maskedmove+vpmovdw+vpacksswb // zero extend is vpcmpeq+maskedmove+vpmovdw+vpsrlw+vpackuswb { ISD::SIGN_EXTEND, MVT::v2i8, MVT::v2i1, 5 }, { ISD::ZERO_EXTEND, MVT::v2i8, MVT::v2i1, 6 }, { ISD::SIGN_EXTEND, MVT::v4i8, MVT::v4i1, 5 }, { ISD::ZERO_EXTEND, MVT::v4i8, MVT::v4i1, 6 }, { ISD::SIGN_EXTEND, MVT::v8i8, MVT::v8i1, 5 }, { ISD::ZERO_EXTEND, MVT::v8i8, MVT::v8i1, 6 }, { ISD::SIGN_EXTEND, MVT::v16i8, MVT::v16i1, 10 }, { ISD::ZERO_EXTEND, MVT::v16i8, MVT::v16i1, 12 }, // sign extend is vpcmpeq+maskedmove+vpmovdw // zero extend is vpcmpeq+maskedmove+vpmovdw+vpsrlw { ISD::SIGN_EXTEND, MVT::v2i16, MVT::v2i1, 4 }, { ISD::ZERO_EXTEND, MVT::v2i16, MVT::v2i1, 5 }, { ISD::SIGN_EXTEND, MVT::v4i16, MVT::v4i1, 4 }, { ISD::ZERO_EXTEND, MVT::v4i16, MVT::v4i1, 5 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v8i1, 4 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v8i1, 5 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i1, 10 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i1, 12 }, { ISD::SIGN_EXTEND, MVT::v2i32, MVT::v2i1, 1 }, // vpternlogd { ISD::ZERO_EXTEND, MVT::v2i32, MVT::v2i1, 2 }, // vpternlogd+psrld { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v4i1, 1 }, // vpternlogd { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v4i1, 2 }, // vpternlogd+psrld { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 1 }, // vpternlogd { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 2 }, // vpternlogd+psrld { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v16i1, 1 }, // vpternlogd { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v16i1, 2 }, // vpternlogd+psrld { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v2i1, 1 }, // vpternlogq { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v2i1, 2 }, // vpternlogq+psrlq { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i1, 1 }, // vpternlogq { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i1, 2 }, // vpternlogq+psrlq { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v16i8, 1 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v16i8, 1 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v16i8, 1 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v16i8, 1 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i8, 1 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i8, 1 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v8i16, 1 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v8i16, 1 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i16, 1 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i16, 1 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i32, 1 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i32, 1 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v16i8, 1 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v16i8, 1 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v8i16, 1 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i16, 1 }, { ISD::UINT_TO_FP, MVT::f32, MVT::i64, 1 }, { ISD::UINT_TO_FP, MVT::f64, MVT::i64, 1 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v16i8, 1 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v16i8, 1 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v8i16, 1 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i16, 1 }, { ISD::UINT_TO_FP, MVT::v2f32, MVT::v2i32, 1 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i32, 1 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i32, 1 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i32, 1 }, { ISD::UINT_TO_FP, MVT::v2f32, MVT::v2i64, 5 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v2i64, 5 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i64, 5 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v8f32, 2 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v16f32, 2 }, { ISD::FP_TO_SINT, MVT::v32i8, MVT::v32f32, 5 }, { ISD::FP_TO_UINT, MVT::i64, MVT::f32, 1 }, { ISD::FP_TO_UINT, MVT::i64, MVT::f64, 1 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v4f32, 1 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v2f64, 1 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v4f64, 1 }, { ISD::FP_TO_UINT, MVT::v8i32, MVT::v8f32, 1 }, { ISD::FP_TO_UINT, MVT::v8i32, MVT::v8f64, 1 }, }; static const TypeConversionCostTblEntry AVX2ConversionTbl[] = { { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i1, 3 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i1, 3 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 3 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 3 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i1, 1 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i1, 1 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v16i8, 2 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v16i8, 2 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v16i8, 2 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v16i8, 2 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i8, 2 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i8, 2 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v8i16, 2 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v8i16, 2 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i16, 2 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i16, 2 }, { ISD::ZERO_EXTEND, MVT::v16i32, MVT::v16i16, 3 }, { ISD::SIGN_EXTEND, MVT::v16i32, MVT::v16i16, 3 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i32, 2 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i32, 2 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i32, 2 }, { ISD::TRUNCATE, MVT::v16i16, MVT::v16i32, 4 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v16i32, 4 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v8i16, 1 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v4i32, 1 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v2i64, 1 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v8i32, 4 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v4i64, 4 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v4i32, 1 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v2i64, 1 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v4i64, 5 }, { ISD::TRUNCATE, MVT::v4i32, MVT::v4i64, 1 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v8i32, 2 }, { ISD::FP_EXTEND, MVT::v8f64, MVT::v8f32, 3 }, { ISD::FP_ROUND, MVT::v8f32, MVT::v8f64, 3 }, { ISD::FP_TO_SINT, MVT::v16i16, MVT::v8f32, 1 }, { ISD::FP_TO_SINT, MVT::v4i32, MVT::v4f64, 1 }, { ISD::FP_TO_SINT, MVT::v8i32, MVT::v8f32, 1 }, { ISD::FP_TO_SINT, MVT::v8i32, MVT::v8f64, 3 }, { ISD::FP_TO_UINT, MVT::i64, MVT::f32, 3 }, { ISD::FP_TO_UINT, MVT::i64, MVT::f64, 3 }, { ISD::FP_TO_UINT, MVT::v16i16, MVT::v8f32, 1 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v4f32, 3 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v2f64, 4 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v4f64, 4 }, { ISD::FP_TO_UINT, MVT::v8i32, MVT::v8f32, 3 }, { ISD::FP_TO_UINT, MVT::v8i32, MVT::v4f64, 4 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v16i8, 2 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v16i8, 2 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v8i16, 2 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i16, 2 }, { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i32, 1 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i32, 1 }, { ISD::SINT_TO_FP, MVT::v8f64, MVT::v8i32, 3 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v16i8, 2 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v16i8, 2 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v8i16, 2 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i16, 2 }, { ISD::UINT_TO_FP, MVT::v2f32, MVT::v2i32, 2 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v2i32, 1 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i32, 2 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i32, 2 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i32, 2 }, { ISD::UINT_TO_FP, MVT::v8f64, MVT::v8i32, 4 }, }; static const TypeConversionCostTblEntry AVXConversionTbl[] = { { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i1, 6 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i1, 4 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 7 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 4 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i1, 4 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i1, 4 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v16i8, 3 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v16i8, 3 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v16i8, 3 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v16i8, 3 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i8, 3 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i8, 3 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v8i16, 3 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v8i16, 3 }, { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i16, 3 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i16, 3 }, { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i32, 3 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i32, 3 }, { ISD::TRUNCATE, MVT::v4i1, MVT::v4i64, 4 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i32, 5 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v16i16, 4 }, { ISD::TRUNCATE, MVT::v8i1, MVT::v8i64, 9 }, { ISD::TRUNCATE, MVT::v16i1, MVT::v16i64, 11 }, { ISD::TRUNCATE, MVT::v16i16, MVT::v16i32, 6 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v16i32, 6 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v16i16, 2 }, // and+extract+packuswb { ISD::TRUNCATE, MVT::v16i8, MVT::v8i32, 5 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v8i32, 5 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v4i64, 5 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v4i64, 3 }, // and+extract+2*packusdw { ISD::TRUNCATE, MVT::v4i32, MVT::v4i64, 2 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i1, 3 }, { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i1, 3 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i1, 8 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v16i8, 4 }, { ISD::SINT_TO_FP, MVT::v4f64, MVT::v16i8, 2 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i16, 4 }, { ISD::SINT_TO_FP, MVT::v4f64, MVT::v8i16, 2 }, { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i32, 2 }, { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i32, 2 }, { ISD::SINT_TO_FP, MVT::v8f64, MVT::v8i32, 4 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v2i64, 5 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i64, 8 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i1, 7 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i1, 7 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i1, 6 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v16i8, 4 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v16i8, 2 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i16, 4 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v8i16, 2 }, { ISD::UINT_TO_FP, MVT::v2f32, MVT::v2i32, 4 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v2i32, 4 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i32, 5 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i32, 6 }, { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i32, 8 }, { ISD::UINT_TO_FP, MVT::v8f64, MVT::v8i32, 10 }, { ISD::UINT_TO_FP, MVT::v2f32, MVT::v2i64, 10 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i64, 18 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v2i64, 5 }, { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i64, 10 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v8f32, 2 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v4f64, 2 }, { ISD::FP_TO_SINT, MVT::v32i8, MVT::v8f32, 2 }, { ISD::FP_TO_SINT, MVT::v32i8, MVT::v4f64, 2 }, { ISD::FP_TO_SINT, MVT::v8i16, MVT::v8f32, 2 }, { ISD::FP_TO_SINT, MVT::v8i16, MVT::v4f64, 2 }, { ISD::FP_TO_SINT, MVT::v16i16, MVT::v8f32, 2 }, { ISD::FP_TO_SINT, MVT::v16i16, MVT::v4f64, 2 }, { ISD::FP_TO_SINT, MVT::v4i32, MVT::v4f64, 2 }, { ISD::FP_TO_SINT, MVT::v8i32, MVT::v8f32, 2 }, { ISD::FP_TO_SINT, MVT::v8i32, MVT::v8f64, 5 }, { ISD::FP_TO_UINT, MVT::v16i8, MVT::v8f32, 2 }, { ISD::FP_TO_UINT, MVT::v16i8, MVT::v4f64, 2 }, { ISD::FP_TO_UINT, MVT::v32i8, MVT::v8f32, 2 }, { ISD::FP_TO_UINT, MVT::v32i8, MVT::v4f64, 2 }, { ISD::FP_TO_UINT, MVT::v8i16, MVT::v8f32, 2 }, { ISD::FP_TO_UINT, MVT::v8i16, MVT::v4f64, 2 }, { ISD::FP_TO_UINT, MVT::v16i16, MVT::v8f32, 2 }, { ISD::FP_TO_UINT, MVT::v16i16, MVT::v4f64, 2 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v4f32, 3 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v2f64, 4 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v4f64, 6 }, { ISD::FP_TO_UINT, MVT::v8i32, MVT::v8f32, 7 }, { ISD::FP_TO_UINT, MVT::v8i32, MVT::v4f64, 7 }, { ISD::FP_EXTEND, MVT::v4f64, MVT::v4f32, 1 }, { ISD::FP_ROUND, MVT::v4f32, MVT::v4f64, 1 }, }; static const TypeConversionCostTblEntry SSE41ConversionTbl[] = { { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v16i8, 1 }, { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v16i8, 1 }, { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v16i8, 1 }, { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v16i8, 1 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v16i8, 1 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v16i8, 1 }, { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v8i16, 1 }, { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v8i16, 1 }, { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v8i16, 1 }, { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v8i16, 1 }, { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v4i32, 1 }, { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v4i32, 1 }, // These truncates end up widening elements. { ISD::TRUNCATE, MVT::v2i1, MVT::v2i8, 1 }, // PMOVXZBQ { ISD::TRUNCATE, MVT::v2i1, MVT::v2i16, 1 }, // PMOVXZWQ { ISD::TRUNCATE, MVT::v4i1, MVT::v4i8, 1 }, // PMOVXZBD { ISD::TRUNCATE, MVT::v16i8, MVT::v4i32, 2 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v4i32, 2 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v2i64, 2 }, { ISD::SINT_TO_FP, MVT::f32, MVT::i32, 1 }, { ISD::SINT_TO_FP, MVT::f64, MVT::i32, 1 }, { ISD::SINT_TO_FP, MVT::f32, MVT::i64, 1 }, { ISD::SINT_TO_FP, MVT::f64, MVT::i64, 1 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v16i8, 1 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v16i8, 1 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v8i16, 1 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v8i16, 1 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i32, 1 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v4i32, 1 }, { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i32, 2 }, { ISD::UINT_TO_FP, MVT::f32, MVT::i32, 1 }, { ISD::UINT_TO_FP, MVT::f64, MVT::i32, 1 }, { ISD::UINT_TO_FP, MVT::f32, MVT::i64, 4 }, { ISD::UINT_TO_FP, MVT::f64, MVT::i64, 4 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v16i8, 1 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v16i8, 1 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v8i16, 1 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v8i16, 1 }, { ISD::UINT_TO_FP, MVT::v2f32, MVT::v2i32, 3 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i32, 3 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v4i32, 2 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v2i64, 12 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i64, 22 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v2i64, 4 }, { ISD::FP_TO_SINT, MVT::i32, MVT::f32, 1 }, { ISD::FP_TO_SINT, MVT::i64, MVT::f32, 1 }, { ISD::FP_TO_SINT, MVT::i32, MVT::f64, 1 }, { ISD::FP_TO_SINT, MVT::i64, MVT::f64, 1 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v4f32, 2 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v2f64, 2 }, { ISD::FP_TO_SINT, MVT::v8i16, MVT::v4f32, 1 }, { ISD::FP_TO_SINT, MVT::v8i16, MVT::v2f64, 1 }, { ISD::FP_TO_SINT, MVT::v4i32, MVT::v4f32, 1 }, { ISD::FP_TO_SINT, MVT::v4i32, MVT::v2f64, 1 }, { ISD::FP_TO_UINT, MVT::i32, MVT::f32, 1 }, { ISD::FP_TO_UINT, MVT::i64, MVT::f32, 4 }, { ISD::FP_TO_UINT, MVT::i32, MVT::f64, 1 }, { ISD::FP_TO_UINT, MVT::i64, MVT::f64, 4 }, { ISD::FP_TO_UINT, MVT::v16i8, MVT::v4f32, 2 }, { ISD::FP_TO_UINT, MVT::v16i8, MVT::v2f64, 2 }, { ISD::FP_TO_UINT, MVT::v8i16, MVT::v4f32, 1 }, { ISD::FP_TO_UINT, MVT::v8i16, MVT::v2f64, 1 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v4f32, 4 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v2f64, 4 }, }; static const TypeConversionCostTblEntry SSE2ConversionTbl[] = { // These are somewhat magic numbers justified by comparing the // output of llvm-mca for our various supported scheduler models // and basing it off the worst case scenario. { ISD::SINT_TO_FP, MVT::f32, MVT::i32, 3 }, { ISD::SINT_TO_FP, MVT::f64, MVT::i32, 3 }, { ISD::SINT_TO_FP, MVT::f32, MVT::i64, 3 }, { ISD::SINT_TO_FP, MVT::f64, MVT::i64, 3 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v16i8, 3 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v16i8, 4 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v8i16, 3 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v8i16, 4 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i32, 3 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v4i32, 4 }, { ISD::SINT_TO_FP, MVT::v4f32, MVT::v2i64, 8 }, { ISD::SINT_TO_FP, MVT::v2f64, MVT::v2i64, 8 }, { ISD::UINT_TO_FP, MVT::f32, MVT::i32, 3 }, { ISD::UINT_TO_FP, MVT::f64, MVT::i32, 3 }, { ISD::UINT_TO_FP, MVT::f32, MVT::i64, 8 }, { ISD::UINT_TO_FP, MVT::f64, MVT::i64, 9 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v16i8, 4 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v16i8, 4 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v8i16, 4 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v8i16, 4 }, { ISD::UINT_TO_FP, MVT::v2f32, MVT::v2i32, 7 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v4i32, 7 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i32, 5 }, { ISD::UINT_TO_FP, MVT::v2f64, MVT::v2i64, 15 }, { ISD::UINT_TO_FP, MVT::v4f32, MVT::v2i64, 18 }, { ISD::FP_TO_SINT, MVT::i32, MVT::f32, 4 }, { ISD::FP_TO_SINT, MVT::i64, MVT::f32, 4 }, { ISD::FP_TO_SINT, MVT::i32, MVT::f64, 4 }, { ISD::FP_TO_SINT, MVT::i64, MVT::f64, 4 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v4f32, 6 }, { ISD::FP_TO_SINT, MVT::v16i8, MVT::v2f64, 6 }, { ISD::FP_TO_SINT, MVT::v8i16, MVT::v4f32, 5 }, { ISD::FP_TO_SINT, MVT::v8i16, MVT::v2f64, 5 }, { ISD::FP_TO_SINT, MVT::v4i32, MVT::v4f32, 4 }, { ISD::FP_TO_SINT, MVT::v4i32, MVT::v2f64, 4 }, { ISD::FP_TO_UINT, MVT::i32, MVT::f32, 4 }, { ISD::FP_TO_UINT, MVT::i64, MVT::f32, 4 }, { ISD::FP_TO_UINT, MVT::i32, MVT::f64, 4 }, { ISD::FP_TO_UINT, MVT::i64, MVT::f64, 15 }, { ISD::FP_TO_UINT, MVT::v16i8, MVT::v4f32, 6 }, { ISD::FP_TO_UINT, MVT::v16i8, MVT::v2f64, 6 }, { ISD::FP_TO_UINT, MVT::v8i16, MVT::v4f32, 5 }, { ISD::FP_TO_UINT, MVT::v8i16, MVT::v2f64, 5 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v4f32, 8 }, { ISD::FP_TO_UINT, MVT::v4i32, MVT::v2f64, 8 }, { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v16i8, 4 }, { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v16i8, 4 }, { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v16i8, 2 }, { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v16i8, 3 }, { ISD::ZERO_EXTEND, MVT::v8i16, MVT::v16i8, 1 }, { ISD::SIGN_EXTEND, MVT::v8i16, MVT::v16i8, 2 }, { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v8i16, 2 }, { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v8i16, 3 }, { ISD::ZERO_EXTEND, MVT::v4i32, MVT::v8i16, 1 }, { ISD::SIGN_EXTEND, MVT::v4i32, MVT::v8i16, 2 }, { ISD::ZERO_EXTEND, MVT::v2i64, MVT::v4i32, 1 }, { ISD::SIGN_EXTEND, MVT::v2i64, MVT::v4i32, 2 }, // These truncates are really widening elements. { ISD::TRUNCATE, MVT::v2i1, MVT::v2i32, 1 }, // PSHUFD { ISD::TRUNCATE, MVT::v2i1, MVT::v2i16, 2 }, // PUNPCKLWD+DQ { ISD::TRUNCATE, MVT::v2i1, MVT::v2i8, 3 }, // PUNPCKLBW+WD+PSHUFD { ISD::TRUNCATE, MVT::v4i1, MVT::v4i16, 1 }, // PUNPCKLWD { ISD::TRUNCATE, MVT::v4i1, MVT::v4i8, 2 }, // PUNPCKLBW+WD { ISD::TRUNCATE, MVT::v8i1, MVT::v8i8, 1 }, // PUNPCKLBW { ISD::TRUNCATE, MVT::v16i8, MVT::v8i16, 2 }, // PAND+PACKUSWB { ISD::TRUNCATE, MVT::v16i8, MVT::v16i16, 3 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v4i32, 3 }, // PAND+2*PACKUSWB { ISD::TRUNCATE, MVT::v16i8, MVT::v16i32, 7 }, { ISD::TRUNCATE, MVT::v2i16, MVT::v2i32, 1 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v4i32, 3 }, { ISD::TRUNCATE, MVT::v8i16, MVT::v8i32, 5 }, { ISD::TRUNCATE, MVT::v16i16, MVT::v16i32,10 }, { ISD::TRUNCATE, MVT::v16i8, MVT::v2i64, 4 }, // PAND+3*PACKUSWB { ISD::TRUNCATE, MVT::v8i16, MVT::v2i64, 2 }, // PSHUFD+PSHUFLW { ISD::TRUNCATE, MVT::v4i32, MVT::v2i64, 1 }, // PSHUFD }; // Attempt to map directly to (simple) MVT types to let us match custom entries. EVT SrcTy = TLI->getValueType(DL, Src); EVT DstTy = TLI->getValueType(DL, Dst); // The function getSimpleVT only handles simple value types. if (SrcTy.isSimple() && DstTy.isSimple()) { MVT SimpleSrcTy = SrcTy.getSimpleVT(); MVT SimpleDstTy = DstTy.getSimpleVT(); if (ST->useAVX512Regs()) { if (ST->hasBWI()) if (const auto *Entry = ConvertCostTableLookup( AVX512BWConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); if (ST->hasDQI()) if (const auto *Entry = ConvertCostTableLookup( AVX512DQConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); if (ST->hasAVX512()) if (const auto *Entry = ConvertCostTableLookup( AVX512FConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); } if (ST->hasBWI()) if (const auto *Entry = ConvertCostTableLookup( AVX512BWVLConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); if (ST->hasDQI()) if (const auto *Entry = ConvertCostTableLookup( AVX512DQVLConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); if (ST->hasAVX512()) if (const auto *Entry = ConvertCostTableLookup(AVX512VLConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); if (ST->hasAVX2()) { if (const auto *Entry = ConvertCostTableLookup(AVX2ConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); } if (ST->hasAVX()) { if (const auto *Entry = ConvertCostTableLookup(AVXConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); } if (ST->hasSSE41()) { if (const auto *Entry = ConvertCostTableLookup(SSE41ConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); } if (ST->hasSSE2()) { if (const auto *Entry = ConvertCostTableLookup(SSE2ConversionTbl, ISD, SimpleDstTy, SimpleSrcTy)) return AdjustCost(Entry->Cost); } } // Fall back to legalized types. std::pair LTSrc = getTypeLegalizationCost(Src); std::pair LTDest = getTypeLegalizationCost(Dst); // If we're truncating to the same legalized type - just assume its free. if (ISD == ISD::TRUNCATE && LTSrc.second == LTDest.second) return TTI::TCC_Free; if (ST->useAVX512Regs()) { if (ST->hasBWI()) if (const auto *Entry = ConvertCostTableLookup( AVX512BWConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); if (ST->hasDQI()) if (const auto *Entry = ConvertCostTableLookup( AVX512DQConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); if (ST->hasAVX512()) if (const auto *Entry = ConvertCostTableLookup( AVX512FConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); } if (ST->hasBWI()) if (const auto *Entry = ConvertCostTableLookup(AVX512BWVLConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); if (ST->hasDQI()) if (const auto *Entry = ConvertCostTableLookup(AVX512DQVLConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); if (ST->hasAVX512()) if (const auto *Entry = ConvertCostTableLookup(AVX512VLConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); if (ST->hasAVX2()) if (const auto *Entry = ConvertCostTableLookup(AVX2ConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); if (ST->hasAVX()) if (const auto *Entry = ConvertCostTableLookup(AVXConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); if (ST->hasSSE41()) if (const auto *Entry = ConvertCostTableLookup(SSE41ConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); if (ST->hasSSE2()) if (const auto *Entry = ConvertCostTableLookup(SSE2ConversionTbl, ISD, LTDest.second, LTSrc.second)) return AdjustCost(std::max(LTSrc.first, LTDest.first) * Entry->Cost); // Fallback, for i8/i16 sitofp/uitofp cases we need to extend to i32 for // sitofp. if ((ISD == ISD::SINT_TO_FP || ISD == ISD::UINT_TO_FP) && 1 < Src->getScalarSizeInBits() && Src->getScalarSizeInBits() < 32) { Type *ExtSrc = Src->getWithNewBitWidth(32); unsigned ExtOpc = (ISD == ISD::SINT_TO_FP) ? Instruction::SExt : Instruction::ZExt; // For scalar loads the extend would be free. InstructionCost ExtCost = 0; if (!(Src->isIntegerTy() && I && isa(I->getOperand(0)))) ExtCost = getCastInstrCost(ExtOpc, ExtSrc, Src, CCH, CostKind); return ExtCost + getCastInstrCost(Instruction::SIToFP, Dst, ExtSrc, TTI::CastContextHint::None, CostKind); } // Fallback for fptosi/fptoui i8/i16 cases we need to truncate from fptosi // i32. if ((ISD == ISD::FP_TO_SINT || ISD == ISD::FP_TO_UINT) && 1 < Dst->getScalarSizeInBits() && Dst->getScalarSizeInBits() < 32) { Type *TruncDst = Dst->getWithNewBitWidth(32); return getCastInstrCost(Instruction::FPToSI, TruncDst, Src, CCH, CostKind) + getCastInstrCost(Instruction::Trunc, Dst, TruncDst, TTI::CastContextHint::None, CostKind); } return AdjustCost( BaseT::getCastInstrCost(Opcode, Dst, Src, CCH, CostKind, I)); } InstructionCost X86TTIImpl::getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy, CmpInst::Predicate VecPred, TTI::TargetCostKind CostKind, const Instruction *I) { // Early out if this type isn't scalar/vector integer/float. if (!(ValTy->isIntOrIntVectorTy() || ValTy->isFPOrFPVectorTy())) return BaseT::getCmpSelInstrCost(Opcode, ValTy, CondTy, VecPred, CostKind, I); // Legalize the type. std::pair LT = getTypeLegalizationCost(ValTy); MVT MTy = LT.second; int ISD = TLI->InstructionOpcodeToISD(Opcode); assert(ISD && "Invalid opcode"); InstructionCost ExtraCost = 0; if (Opcode == Instruction::ICmp || Opcode == Instruction::FCmp) { // Some vector comparison predicates cost extra instructions. // TODO: Should we invert this and assume worst case cmp costs // and reduce for particular predicates? if (MTy.isVector() && !((ST->hasXOP() && (!ST->hasAVX2() || MTy.is128BitVector())) || (ST->hasAVX512() && 32 <= MTy.getScalarSizeInBits()) || ST->hasBWI())) { // Fallback to I if a specific predicate wasn't specified. CmpInst::Predicate Pred = VecPred; if (I && (Pred == CmpInst::BAD_ICMP_PREDICATE || Pred == CmpInst::BAD_FCMP_PREDICATE)) Pred = cast(I)->getPredicate(); switch (Pred) { case CmpInst::Predicate::ICMP_NE: // xor(cmpeq(x,y),-1) ExtraCost = 1; break; case CmpInst::Predicate::ICMP_SGE: case CmpInst::Predicate::ICMP_SLE: // xor(cmpgt(x,y),-1) ExtraCost = 1; break; case CmpInst::Predicate::ICMP_ULT: case CmpInst::Predicate::ICMP_UGT: // cmpgt(xor(x,signbit),xor(y,signbit)) // xor(cmpeq(pmaxu(x,y),x),-1) ExtraCost = 2; break; case CmpInst::Predicate::ICMP_ULE: case CmpInst::Predicate::ICMP_UGE: if ((ST->hasSSE41() && MTy.getScalarSizeInBits() == 32) || (ST->hasSSE2() && MTy.getScalarSizeInBits() < 32)) { // cmpeq(psubus(x,y),0) // cmpeq(pminu(x,y),x) ExtraCost = 1; } else { // xor(cmpgt(xor(x,signbit),xor(y,signbit)),-1) ExtraCost = 3; } break; case CmpInst::Predicate::FCMP_ONE: case CmpInst::Predicate::FCMP_UEQ: // Without AVX we need to expand FCMP_ONE/FCMP_UEQ cases. // Use FCMP_UEQ expansion - FCMP_ONE should be the same. if (CondTy && !ST->hasAVX()) return getCmpSelInstrCost(Opcode, ValTy, CondTy, CmpInst::Predicate::FCMP_UNO, CostKind) + getCmpSelInstrCost(Opcode, ValTy, CondTy, CmpInst::Predicate::FCMP_OEQ, CostKind) + getArithmeticInstrCost(Instruction::Or, CondTy, CostKind); break; case CmpInst::Predicate::BAD_ICMP_PREDICATE: case CmpInst::Predicate::BAD_FCMP_PREDICATE: // Assume worst case scenario and add the maximum extra cost. ExtraCost = 3; break; default: break; } } } static const CostKindTblEntry SLMCostTbl[] = { // slm pcmpeq/pcmpgt throughput is 2 { ISD::SETCC, MVT::v2i64, { 2, 5, 1, 2 } }, // slm pblendvb/blendvpd/blendvps throughput is 4 { ISD::SELECT, MVT::v2f64, { 4, 4, 1, 3 } }, // vblendvpd { ISD::SELECT, MVT::v4f32, { 4, 4, 1, 3 } }, // vblendvps { ISD::SELECT, MVT::v2i64, { 4, 4, 1, 3 } }, // pblendvb { ISD::SELECT, MVT::v8i32, { 4, 4, 1, 3 } }, // pblendvb { ISD::SELECT, MVT::v8i16, { 4, 4, 1, 3 } }, // pblendvb { ISD::SELECT, MVT::v16i8, { 4, 4, 1, 3 } }, // pblendvb }; static const CostKindTblEntry AVX512BWCostTbl[] = { { ISD::SETCC, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v64i8, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v32i8, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v64i8, { 1, 1, 1, 1 } }, }; static const CostKindTblEntry AVX512CostTbl[] = { { ISD::SETCC, MVT::v8f64, { 1, 4, 1, 1 } }, { ISD::SETCC, MVT::v4f64, { 1, 4, 1, 1 } }, { ISD::SETCC, MVT::v16f32, { 1, 4, 1, 1 } }, { ISD::SETCC, MVT::v8f32, { 1, 4, 1, 1 } }, { ISD::SETCC, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v32i16, { 3, 7, 5, 5 } }, { ISD::SETCC, MVT::v64i8, { 3, 7, 5, 5 } }, { ISD::SELECT, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v8f64, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v4f64, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v2f64, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::f64, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v16f32, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v8f32 , { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v4f32, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::f32 , { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v32i16, { 2, 2, 4, 4 } }, { ISD::SELECT, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v64i8, { 2, 2, 4, 4 } }, { ISD::SELECT, MVT::v32i8, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v16i8, { 1, 1, 1, 1 } }, }; static const CostKindTblEntry AVX2CostTbl[] = { { ISD::SETCC, MVT::v4f64, { 1, 4, 1, 2 } }, { ISD::SETCC, MVT::v2f64, { 1, 4, 1, 1 } }, { ISD::SETCC, MVT::f64, { 1, 4, 1, 1 } }, { ISD::SETCC, MVT::v8f32, { 1, 4, 1, 2 } }, { ISD::SETCC, MVT::v4f32, { 1, 4, 1, 1 } }, { ISD::SETCC, MVT::f32, { 1, 4, 1, 1 } }, { ISD::SETCC, MVT::v4i64, { 1, 1, 1, 2 } }, { ISD::SETCC, MVT::v8i32, { 1, 1, 1, 2 } }, { ISD::SETCC, MVT::v16i16, { 1, 1, 1, 2 } }, { ISD::SETCC, MVT::v32i8, { 1, 1, 1, 2 } }, { ISD::SELECT, MVT::v4f64, { 2, 2, 1, 2 } }, // vblendvpd { ISD::SELECT, MVT::v8f32, { 2, 2, 1, 2 } }, // vblendvps { ISD::SELECT, MVT::v4i64, { 2, 2, 1, 2 } }, // pblendvb { ISD::SELECT, MVT::v8i32, { 2, 2, 1, 2 } }, // pblendvb { ISD::SELECT, MVT::v16i16, { 2, 2, 1, 2 } }, // pblendvb { ISD::SELECT, MVT::v32i8, { 2, 2, 1, 2 } }, // pblendvb }; static const CostKindTblEntry XOPCostTbl[] = { { ISD::SETCC, MVT::v4i64, { 4, 2, 5, 6 } }, { ISD::SETCC, MVT::v2i64, { 1, 1, 1, 1 } }, }; static const CostKindTblEntry AVX1CostTbl[] = { { ISD::SETCC, MVT::v4f64, { 2, 3, 1, 2 } }, { ISD::SETCC, MVT::v2f64, { 1, 3, 1, 1 } }, { ISD::SETCC, MVT::f64, { 1, 3, 1, 1 } }, { ISD::SETCC, MVT::v8f32, { 2, 3, 1, 2 } }, { ISD::SETCC, MVT::v4f32, { 1, 3, 1, 1 } }, { ISD::SETCC, MVT::f32, { 1, 3, 1, 1 } }, // AVX1 does not support 8-wide integer compare. { ISD::SETCC, MVT::v4i64, { 4, 2, 5, 6 } }, { ISD::SETCC, MVT::v8i32, { 4, 2, 5, 6 } }, { ISD::SETCC, MVT::v16i16, { 4, 2, 5, 6 } }, { ISD::SETCC, MVT::v32i8, { 4, 2, 5, 6 } }, { ISD::SELECT, MVT::v4f64, { 3, 3, 1, 2 } }, // vblendvpd { ISD::SELECT, MVT::v8f32, { 3, 3, 1, 2 } }, // vblendvps { ISD::SELECT, MVT::v4i64, { 3, 3, 1, 2 } }, // vblendvpd { ISD::SELECT, MVT::v8i32, { 3, 3, 1, 2 } }, // vblendvps { ISD::SELECT, MVT::v16i16, { 3, 3, 3, 3 } }, // vandps + vandnps + vorps { ISD::SELECT, MVT::v32i8, { 3, 3, 3, 3 } }, // vandps + vandnps + vorps }; static const CostKindTblEntry SSE42CostTbl[] = { { ISD::SETCC, MVT::v2i64, { 1, 2, 1, 2 } }, }; static const CostKindTblEntry SSE41CostTbl[] = { { ISD::SETCC, MVT::v2f64, { 1, 5, 1, 1 } }, { ISD::SETCC, MVT::v4f32, { 1, 5, 1, 1 } }, { ISD::SELECT, MVT::v2f64, { 2, 2, 1, 2 } }, // blendvpd { ISD::SELECT, MVT::f64, { 2, 2, 1, 2 } }, // blendvpd { ISD::SELECT, MVT::v4f32, { 2, 2, 1, 2 } }, // blendvps { ISD::SELECT, MVT::f32 , { 2, 2, 1, 2 } }, // blendvps { ISD::SELECT, MVT::v2i64, { 2, 2, 1, 2 } }, // pblendvb { ISD::SELECT, MVT::v4i32, { 2, 2, 1, 2 } }, // pblendvb { ISD::SELECT, MVT::v8i16, { 2, 2, 1, 2 } }, // pblendvb { ISD::SELECT, MVT::v16i8, { 2, 2, 1, 2 } }, // pblendvb }; static const CostKindTblEntry SSE2CostTbl[] = { { ISD::SETCC, MVT::v2f64, { 2, 5, 1, 1 } }, { ISD::SETCC, MVT::f64, { 1, 5, 1, 1 } }, { ISD::SETCC, MVT::v2i64, { 5, 4, 5, 5 } }, // pcmpeqd/pcmpgtd expansion { ISD::SETCC, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::SETCC, MVT::v16i8, { 1, 1, 1, 1 } }, { ISD::SELECT, MVT::v2f64, { 2, 2, 3, 3 } }, // andpd + andnpd + orpd { ISD::SELECT, MVT::f64, { 2, 2, 3, 3 } }, // andpd + andnpd + orpd { ISD::SELECT, MVT::v2i64, { 2, 2, 3, 3 } }, // pand + pandn + por { ISD::SELECT, MVT::v4i32, { 2, 2, 3, 3 } }, // pand + pandn + por { ISD::SELECT, MVT::v8i16, { 2, 2, 3, 3 } }, // pand + pandn + por { ISD::SELECT, MVT::v16i8, { 2, 2, 3, 3 } }, // pand + pandn + por }; static const CostKindTblEntry SSE1CostTbl[] = { { ISD::SETCC, MVT::v4f32, { 2, 5, 1, 1 } }, { ISD::SETCC, MVT::f32, { 1, 5, 1, 1 } }, { ISD::SELECT, MVT::v4f32, { 2, 2, 3, 3 } }, // andps + andnps + orps { ISD::SELECT, MVT::f32, { 2, 2, 3, 3 } }, // andps + andnps + orps }; if (ST->useSLMArithCosts()) if (const auto *Entry = CostTableLookup(SLMCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasBWI()) if (const auto *Entry = CostTableLookup(AVX512BWCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasAVX512()) if (const auto *Entry = CostTableLookup(AVX512CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasXOP()) if (const auto *Entry = CostTableLookup(XOPCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasSSE42()) if (const auto *Entry = CostTableLookup(SSE42CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasSSE41()) if (const auto *Entry = CostTableLookup(SSE41CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); if (ST->hasSSE1()) if (const auto *Entry = CostTableLookup(SSE1CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return LT.first * (ExtraCost + *KindCost); // Assume a 3cy latency for fp select ops. if (CostKind == TTI::TCK_Latency && Opcode == Instruction::Select) if (ValTy->getScalarType()->isFloatingPointTy()) return 3; return BaseT::getCmpSelInstrCost(Opcode, ValTy, CondTy, VecPred, CostKind, I); } unsigned X86TTIImpl::getAtomicMemIntrinsicMaxElementSize() const { return 16; } InstructionCost X86TTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA, TTI::TargetCostKind CostKind) { // Costs should match the codegen from: // BITREVERSE: llvm\test\CodeGen\X86\vector-bitreverse.ll // BSWAP: llvm\test\CodeGen\X86\bswap-vector.ll // CTLZ: llvm\test\CodeGen\X86\vector-lzcnt-*.ll // CTPOP: llvm\test\CodeGen\X86\vector-popcnt-*.ll // CTTZ: llvm\test\CodeGen\X86\vector-tzcnt-*.ll // TODO: Overflow intrinsics (*ADDO, *SUBO, *MULO) with vector types are not // specialized in these tables yet. static const CostKindTblEntry AVX512VBMI2CostTbl[] = { { ISD::FSHL, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::ROTL, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::ROTL, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::ROTL, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v8i16, { 1, 1, 1, 1 } }, }; static const CostKindTblEntry AVX512BITALGCostTbl[] = { { ISD::CTPOP, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v64i8, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v32i8, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v16i8, { 1, 1, 1, 1 } }, }; static const CostKindTblEntry AVX512VPOPCNTDQCostTbl[] = { { ISD::CTPOP, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::CTPOP, MVT::v4i32, { 1, 1, 1, 1 } }, }; static const CostKindTblEntry AVX512CDCostTbl[] = { { ISD::CTLZ, MVT::v8i64, { 1, 5, 1, 1 } }, { ISD::CTLZ, MVT::v16i32, { 1, 5, 1, 1 } }, { ISD::CTLZ, MVT::v32i16, { 18, 27, 23, 27 } }, { ISD::CTLZ, MVT::v64i8, { 3, 16, 9, 11 } }, { ISD::CTLZ, MVT::v4i64, { 1, 5, 1, 1 } }, { ISD::CTLZ, MVT::v8i32, { 1, 5, 1, 1 } }, { ISD::CTLZ, MVT::v16i16, { 8, 19, 11, 13 } }, { ISD::CTLZ, MVT::v32i8, { 2, 11, 9, 10 } }, { ISD::CTLZ, MVT::v2i64, { 1, 5, 1, 1 } }, { ISD::CTLZ, MVT::v4i32, { 1, 5, 1, 1 } }, { ISD::CTLZ, MVT::v8i16, { 3, 15, 4, 6 } }, { ISD::CTLZ, MVT::v16i8, { 2, 10, 9, 10 } }, { ISD::CTTZ, MVT::v8i64, { 2, 8, 6, 7 } }, { ISD::CTTZ, MVT::v16i32, { 2, 8, 6, 7 } }, { ISD::CTTZ, MVT::v4i64, { 1, 8, 6, 6 } }, { ISD::CTTZ, MVT::v8i32, { 1, 8, 6, 6 } }, { ISD::CTTZ, MVT::v2i64, { 1, 8, 6, 6 } }, { ISD::CTTZ, MVT::v4i32, { 1, 8, 6, 6 } }, }; static const CostKindTblEntry AVX512BWCostTbl[] = { { ISD::ABS, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v64i8, { 1, 1, 1, 1 } }, { ISD::BITREVERSE, MVT::v2i64, { 3, 10, 10, 11 } }, { ISD::BITREVERSE, MVT::v4i64, { 3, 11, 10, 11 } }, { ISD::BITREVERSE, MVT::v8i64, { 3, 12, 10, 14 } }, { ISD::BITREVERSE, MVT::v4i32, { 3, 10, 10, 11 } }, { ISD::BITREVERSE, MVT::v8i32, { 3, 11, 10, 11 } }, { ISD::BITREVERSE, MVT::v16i32, { 3, 12, 10, 14 } }, { ISD::BITREVERSE, MVT::v8i16, { 3, 10, 10, 11 } }, { ISD::BITREVERSE, MVT::v16i16, { 3, 11, 10, 11 } }, { ISD::BITREVERSE, MVT::v32i16, { 3, 12, 10, 14 } }, { ISD::BITREVERSE, MVT::v16i8, { 2, 5, 9, 9 } }, { ISD::BITREVERSE, MVT::v32i8, { 2, 5, 9, 9 } }, { ISD::BITREVERSE, MVT::v64i8, { 2, 5, 9, 12 } }, { ISD::BSWAP, MVT::v2i64, { 1, 1, 1, 2 } }, { ISD::BSWAP, MVT::v4i64, { 1, 1, 1, 2 } }, { ISD::BSWAP, MVT::v8i64, { 1, 1, 1, 2 } }, { ISD::BSWAP, MVT::v4i32, { 1, 1, 1, 2 } }, { ISD::BSWAP, MVT::v8i32, { 1, 1, 1, 2 } }, { ISD::BSWAP, MVT::v16i32, { 1, 1, 1, 2 } }, { ISD::BSWAP, MVT::v8i16, { 1, 1, 1, 2 } }, { ISD::BSWAP, MVT::v16i16, { 1, 1, 1, 2 } }, { ISD::BSWAP, MVT::v32i16, { 1, 1, 1, 2 } }, { ISD::CTLZ, MVT::v8i64, { 8, 22, 23, 23 } }, { ISD::CTLZ, MVT::v16i32, { 8, 23, 25, 25 } }, { ISD::CTLZ, MVT::v32i16, { 4, 15, 15, 16 } }, { ISD::CTLZ, MVT::v64i8, { 3, 12, 10, 9 } }, { ISD::CTPOP, MVT::v2i64, { 3, 7, 10, 10 } }, { ISD::CTPOP, MVT::v4i64, { 3, 7, 10, 10 } }, { ISD::CTPOP, MVT::v8i64, { 3, 8, 10, 12 } }, { ISD::CTPOP, MVT::v4i32, { 7, 11, 14, 14 } }, { ISD::CTPOP, MVT::v8i32, { 7, 11, 14, 14 } }, { ISD::CTPOP, MVT::v16i32, { 7, 12, 14, 16 } }, { ISD::CTPOP, MVT::v8i16, { 2, 7, 11, 11 } }, { ISD::CTPOP, MVT::v16i16, { 2, 7, 11, 11 } }, { ISD::CTPOP, MVT::v32i16, { 3, 7, 11, 13 } }, { ISD::CTPOP, MVT::v16i8, { 2, 4, 8, 8 } }, { ISD::CTPOP, MVT::v32i8, { 2, 4, 8, 8 } }, { ISD::CTPOP, MVT::v64i8, { 2, 5, 8, 10 } }, { ISD::CTTZ, MVT::v8i16, { 3, 9, 14, 14 } }, { ISD::CTTZ, MVT::v16i16, { 3, 9, 14, 14 } }, { ISD::CTTZ, MVT::v32i16, { 3, 10, 14, 16 } }, { ISD::CTTZ, MVT::v16i8, { 2, 6, 11, 11 } }, { ISD::CTTZ, MVT::v32i8, { 2, 6, 11, 11 } }, { ISD::CTTZ, MVT::v64i8, { 3, 7, 11, 13 } }, { ISD::ROTL, MVT::v32i16, { 2, 8, 6, 8 } }, { ISD::ROTL, MVT::v16i16, { 2, 8, 6, 7 } }, { ISD::ROTL, MVT::v8i16, { 2, 7, 6, 7 } }, { ISD::ROTL, MVT::v64i8, { 5, 6, 11, 12 } }, { ISD::ROTL, MVT::v32i8, { 5, 15, 7, 10 } }, { ISD::ROTL, MVT::v16i8, { 5, 15, 7, 10 } }, { ISD::ROTR, MVT::v32i16, { 2, 8, 6, 8 } }, { ISD::ROTR, MVT::v16i16, { 2, 8, 6, 7 } }, { ISD::ROTR, MVT::v8i16, { 2, 7, 6, 7 } }, { ISD::ROTR, MVT::v64i8, { 5, 6, 12, 14 } }, { ISD::ROTR, MVT::v32i8, { 5, 14, 6, 9 } }, { ISD::ROTR, MVT::v16i8, { 5, 14, 6, 9 } }, { ISD::SADDSAT, MVT::v32i16, { 1 } }, { ISD::SADDSAT, MVT::v64i8, { 1 } }, { ISD::SMAX, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::SMAX, MVT::v64i8, { 1, 1, 1, 1 } }, { ISD::SMIN, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::SMIN, MVT::v64i8, { 1, 1, 1, 1 } }, { ISD::SSUBSAT, MVT::v32i16, { 1 } }, { ISD::SSUBSAT, MVT::v64i8, { 1 } }, { ISD::UADDSAT, MVT::v32i16, { 1 } }, { ISD::UADDSAT, MVT::v64i8, { 1 } }, { ISD::UMAX, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::UMAX, MVT::v64i8, { 1, 1, 1, 1 } }, { ISD::UMIN, MVT::v32i16, { 1, 1, 1, 1 } }, { ISD::UMIN, MVT::v64i8, { 1, 1, 1, 1 } }, { ISD::USUBSAT, MVT::v32i16, { 1 } }, { ISD::USUBSAT, MVT::v64i8, { 1 } }, }; static const CostKindTblEntry AVX512CostTbl[] = { { ISD::ABS, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v32i16, { 2, 7, 4, 4 } }, { ISD::ABS, MVT::v16i16, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v64i8, { 2, 7, 4, 4 } }, { ISD::ABS, MVT::v32i8, { 1, 1, 1, 1 } }, { ISD::BITREVERSE, MVT::v8i64, { 9, 13, 20, 20 } }, { ISD::BITREVERSE, MVT::v16i32, { 9, 13, 20, 20 } }, { ISD::BITREVERSE, MVT::v32i16, { 9, 13, 20, 20 } }, { ISD::BITREVERSE, MVT::v64i8, { 6, 11, 17, 17 } }, { ISD::BSWAP, MVT::v8i64, { 4, 7, 5, 5 } }, { ISD::BSWAP, MVT::v16i32, { 4, 7, 5, 5 } }, { ISD::BSWAP, MVT::v32i16, { 4, 7, 5, 5 } }, { ISD::CTLZ, MVT::v8i64, { 10, 28, 32, 32 } }, { ISD::CTLZ, MVT::v16i32, { 12, 30, 38, 38 } }, { ISD::CTLZ, MVT::v32i16, { 8, 15, 29, 29 } }, { ISD::CTLZ, MVT::v64i8, { 6, 11, 19, 19 } }, { ISD::CTPOP, MVT::v8i64, { 16, 16, 19, 19 } }, { ISD::CTPOP, MVT::v16i32, { 24, 19, 27, 27 } }, { ISD::CTPOP, MVT::v32i16, { 18, 15, 22, 22 } }, { ISD::CTPOP, MVT::v64i8, { 12, 11, 16, 16 } }, { ISD::CTTZ, MVT::v8i64, { 2, 8, 6, 7 } }, { ISD::CTTZ, MVT::v16i32, { 2, 8, 6, 7 } }, { ISD::CTTZ, MVT::v32i16, { 7, 17, 27, 27 } }, { ISD::CTTZ, MVT::v64i8, { 6, 13, 21, 21 } }, { ISD::ROTL, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::ROTL, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::ROTL, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::ROTL, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::ROTL, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::ROTL, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v8i64, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v4i64, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v2i64, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v8i32, { 1, 1, 1, 1 } }, { ISD::ROTR, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::SMAX, MVT::v8i64, { 1, 3, 1, 1 } }, { ISD::SMAX, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::SMAX, MVT::v32i16, { 3, 7, 5, 5 } }, { ISD::SMAX, MVT::v64i8, { 3, 7, 5, 5 } }, { ISD::SMAX, MVT::v4i64, { 1, 3, 1, 1 } }, { ISD::SMAX, MVT::v2i64, { 1, 3, 1, 1 } }, { ISD::SMIN, MVT::v8i64, { 1, 3, 1, 1 } }, { ISD::SMIN, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::SMIN, MVT::v32i16, { 3, 7, 5, 5 } }, { ISD::SMIN, MVT::v64i8, { 3, 7, 5, 5 } }, { ISD::SMIN, MVT::v4i64, { 1, 3, 1, 1 } }, { ISD::SMIN, MVT::v2i64, { 1, 3, 1, 1 } }, { ISD::UMAX, MVT::v8i64, { 1, 3, 1, 1 } }, { ISD::UMAX, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::UMAX, MVT::v32i16, { 3, 7, 5, 5 } }, { ISD::UMAX, MVT::v64i8, { 3, 7, 5, 5 } }, { ISD::UMAX, MVT::v4i64, { 1, 3, 1, 1 } }, { ISD::UMAX, MVT::v2i64, { 1, 3, 1, 1 } }, { ISD::UMIN, MVT::v8i64, { 1, 3, 1, 1 } }, { ISD::UMIN, MVT::v16i32, { 1, 1, 1, 1 } }, { ISD::UMIN, MVT::v32i16, { 3, 7, 5, 5 } }, { ISD::UMIN, MVT::v64i8, { 3, 7, 5, 5 } }, { ISD::UMIN, MVT::v4i64, { 1, 3, 1, 1 } }, { ISD::UMIN, MVT::v2i64, { 1, 3, 1, 1 } }, { ISD::USUBSAT, MVT::v16i32, { 2 } }, // pmaxud + psubd { ISD::USUBSAT, MVT::v2i64, { 2 } }, // pmaxuq + psubq { ISD::USUBSAT, MVT::v4i64, { 2 } }, // pmaxuq + psubq { ISD::USUBSAT, MVT::v8i64, { 2 } }, // pmaxuq + psubq { ISD::UADDSAT, MVT::v16i32, { 3 } }, // not + pminud + paddd { ISD::UADDSAT, MVT::v2i64, { 3 } }, // not + pminuq + paddq { ISD::UADDSAT, MVT::v4i64, { 3 } }, // not + pminuq + paddq { ISD::UADDSAT, MVT::v8i64, { 3 } }, // not + pminuq + paddq { ISD::SADDSAT, MVT::v32i16, { 2 } }, { ISD::SADDSAT, MVT::v64i8, { 2 } }, { ISD::SSUBSAT, MVT::v32i16, { 2 } }, { ISD::SSUBSAT, MVT::v64i8, { 2 } }, { ISD::UADDSAT, MVT::v32i16, { 2 } }, { ISD::UADDSAT, MVT::v64i8, { 2 } }, { ISD::USUBSAT, MVT::v32i16, { 2 } }, { ISD::USUBSAT, MVT::v64i8, { 2 } }, { ISD::FMAXNUM, MVT::f32, { 2, 2, 3, 3 } }, { ISD::FMAXNUM, MVT::v4f32, { 1, 1, 3, 3 } }, { ISD::FMAXNUM, MVT::v8f32, { 2, 2, 3, 3 } }, { ISD::FMAXNUM, MVT::v16f32, { 4, 4, 3, 3 } }, { ISD::FMAXNUM, MVT::f64, { 2, 2, 3, 3 } }, { ISD::FMAXNUM, MVT::v2f64, { 1, 1, 3, 3 } }, { ISD::FMAXNUM, MVT::v4f64, { 2, 2, 3, 3 } }, { ISD::FMAXNUM, MVT::v8f64, { 3, 3, 3, 3 } }, { ISD::FSQRT, MVT::f32, { 3, 12, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSQRT, MVT::v4f32, { 3, 12, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSQRT, MVT::v8f32, { 6, 12, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSQRT, MVT::v16f32, { 12, 20, 1, 3 } }, // Skylake from http://www.agner.org/ { ISD::FSQRT, MVT::f64, { 6, 18, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSQRT, MVT::v2f64, { 6, 18, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSQRT, MVT::v4f64, { 12, 18, 1, 1 } }, // Skylake from http://www.agner.org/ { ISD::FSQRT, MVT::v8f64, { 24, 32, 1, 3 } }, // Skylake from http://www.agner.org/ }; static const CostKindTblEntry XOPCostTbl[] = { { ISD::BITREVERSE, MVT::v4i64, { 3, 6, 5, 6 } }, { ISD::BITREVERSE, MVT::v8i32, { 3, 6, 5, 6 } }, { ISD::BITREVERSE, MVT::v16i16, { 3, 6, 5, 6 } }, { ISD::BITREVERSE, MVT::v32i8, { 3, 6, 5, 6 } }, { ISD::BITREVERSE, MVT::v2i64, { 2, 7, 1, 1 } }, { ISD::BITREVERSE, MVT::v4i32, { 2, 7, 1, 1 } }, { ISD::BITREVERSE, MVT::v8i16, { 2, 7, 1, 1 } }, { ISD::BITREVERSE, MVT::v16i8, { 2, 7, 1, 1 } }, { ISD::BITREVERSE, MVT::i64, { 2, 2, 3, 4 } }, { ISD::BITREVERSE, MVT::i32, { 2, 2, 3, 4 } }, { ISD::BITREVERSE, MVT::i16, { 2, 2, 3, 4 } }, { ISD::BITREVERSE, MVT::i8, { 2, 2, 3, 4 } }, // XOP: ROTL = VPROT(X,Y), ROTR = VPROT(X,SUB(0,Y)) { ISD::ROTL, MVT::v4i64, { 4, 7, 5, 6 } }, { ISD::ROTL, MVT::v8i32, { 4, 7, 5, 6 } }, { ISD::ROTL, MVT::v16i16, { 4, 7, 5, 6 } }, { ISD::ROTL, MVT::v32i8, { 4, 7, 5, 6 } }, { ISD::ROTL, MVT::v2i64, { 1, 3, 1, 1 } }, { ISD::ROTL, MVT::v4i32, { 1, 3, 1, 1 } }, { ISD::ROTL, MVT::v8i16, { 1, 3, 1, 1 } }, { ISD::ROTL, MVT::v16i8, { 1, 3, 1, 1 } }, { ISD::ROTR, MVT::v4i64, { 4, 7, 8, 9 } }, { ISD::ROTR, MVT::v8i32, { 4, 7, 8, 9 } }, { ISD::ROTR, MVT::v16i16, { 4, 7, 8, 9 } }, { ISD::ROTR, MVT::v32i8, { 4, 7, 8, 9 } }, { ISD::ROTR, MVT::v2i64, { 1, 3, 3, 3 } }, { ISD::ROTR, MVT::v4i32, { 1, 3, 3, 3 } }, { ISD::ROTR, MVT::v8i16, { 1, 3, 3, 3 } }, { ISD::ROTR, MVT::v16i8, { 1, 3, 3, 3 } } }; static const CostKindTblEntry AVX2CostTbl[] = { { ISD::ABS, MVT::v2i64, { 2, 4, 3, 5 } }, // VBLENDVPD(X,VPSUBQ(0,X),X) { ISD::ABS, MVT::v4i64, { 2, 4, 3, 5 } }, // VBLENDVPD(X,VPSUBQ(0,X),X) { ISD::ABS, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v8i32, { 1, 1, 1, 2 } }, { ISD::ABS, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v16i16, { 1, 1, 1, 2 } }, { ISD::ABS, MVT::v16i8, { 1, 1, 1, 1 } }, { ISD::ABS, MVT::v32i8, { 1, 1, 1, 2 } }, { ISD::BITREVERSE, MVT::v2i64, { 3, 11, 10, 11 } }, { ISD::BITREVERSE, MVT::v4i64, { 5, 11, 10, 17 } }, { ISD::BITREVERSE, MVT::v4i32, { 3, 11, 10, 11 } }, { ISD::BITREVERSE, MVT::v8i32, { 5, 11, 10, 17 } }, { ISD::BITREVERSE, MVT::v8i16, { 3, 11, 10, 11 } }, { ISD::BITREVERSE, MVT::v16i16, { 5, 11, 10, 17 } }, { ISD::BITREVERSE, MVT::v16i8, { 3, 6, 9, 9 } }, { ISD::BITREVERSE, MVT::v32i8, { 4, 5, 9, 15 } }, { ISD::BSWAP, MVT::v2i64, { 1, 2, 1, 2 } }, { ISD::BSWAP, MVT::v4i64, { 1, 3, 1, 2 } }, { ISD::BSWAP, MVT::v4i32, { 1, 2, 1, 2 } }, { ISD::BSWAP, MVT::v8i32, { 1, 3, 1, 2 } }, { ISD::BSWAP, MVT::v8i16, { 1, 2, 1, 2 } }, { ISD::BSWAP, MVT::v16i16, { 1, 3, 1, 2 } }, { ISD::CTLZ, MVT::v2i64, { 7, 18, 24, 25 } }, { ISD::CTLZ, MVT::v4i64, { 14, 18, 24, 44 } }, { ISD::CTLZ, MVT::v4i32, { 5, 16, 19, 20 } }, { ISD::CTLZ, MVT::v8i32, { 10, 16, 19, 34 } }, { ISD::CTLZ, MVT::v8i16, { 4, 13, 14, 15 } }, { ISD::CTLZ, MVT::v16i16, { 6, 14, 14, 24 } }, { ISD::CTLZ, MVT::v16i8, { 3, 12, 9, 10 } }, { ISD::CTLZ, MVT::v32i8, { 4, 12, 9, 14 } }, { ISD::CTPOP, MVT::v2i64, { 3, 9, 10, 10 } }, { ISD::CTPOP, MVT::v4i64, { 4, 9, 10, 14 } }, { ISD::CTPOP, MVT::v4i32, { 7, 12, 14, 14 } }, { ISD::CTPOP, MVT::v8i32, { 7, 12, 14, 18 } }, { ISD::CTPOP, MVT::v8i16, { 3, 7, 11, 11 } }, { ISD::CTPOP, MVT::v16i16, { 6, 8, 11, 18 } }, { ISD::CTPOP, MVT::v16i8, { 2, 5, 8, 8 } }, { ISD::CTPOP, MVT::v32i8, { 3, 5, 8, 12 } }, { ISD::CTTZ, MVT::v2i64, { 4, 11, 13, 13 } }, { ISD::CTTZ, MVT::v4i64, { 5, 11, 13, 20 } }, { ISD::CTTZ, MVT::v4i32, { 7, 14, 17, 17 } }, { ISD::CTTZ, MVT::v8i32, { 7, 15, 17, 24 } }, { ISD::CTTZ, MVT::v8i16, { 4, 9, 14, 14 } }, { ISD::CTTZ, MVT::v16i16, { 6, 9, 14, 24 } }, { ISD::CTTZ, MVT::v16i8, { 3, 7, 11, 11 } }, { ISD::CTTZ, MVT::v32i8, { 5, 7, 11, 18 } }, { ISD::SADDSAT, MVT::v16i16, { 1 } }, { ISD::SADDSAT, MVT::v32i8, { 1 } }, { ISD::SMAX, MVT::v2i64, { 2, 7, 2, 3 } }, { ISD::SMAX, MVT::v4i64, { 2, 7, 2, 3 } }, { ISD::SMAX, MVT::v8i32, { 1, 1, 1, 2 } }, { ISD::SMAX, MVT::v16i16, { 1, 1, 1, 2 } }, { ISD::SMAX, MVT::v32i8, { 1, 1, 1, 2 } }, { ISD::SMIN, MVT::v2i64, { 2, 7, 2, 3 } }, { ISD::SMIN, MVT::v4i64, { 2, 7, 2, 3 } }, { ISD::SMIN, MVT::v8i32, { 1, 1, 1, 2 } }, { ISD::SMIN, MVT::v16i16, { 1, 1, 1, 2 } }, { ISD::SMIN, MVT::v32i8, { 1, 1, 1, 2 } }, { ISD::SSUBSAT, MVT::v16i16, { 1 } }, { ISD::SSUBSAT, MVT::v32i8, { 1 } }, { ISD::UADDSAT, MVT::v16i16, { 1 } }, { ISD::UADDSAT, MVT::v32i8, { 1 } }, { ISD::UADDSAT, MVT::v8i32, { 3 } }, // not + pminud + paddd { ISD::UMAX, MVT::v2i64, { 2, 8, 5, 6 } }, { ISD::UMAX, MVT::v4i64, { 2, 8, 5, 8 } }, { ISD::UMAX, MVT::v8i32, { 1, 1, 1, 2 } }, { ISD::UMAX, MVT::v16i16, { 1, 1, 1, 2 } }, { ISD::UMAX, MVT::v32i8, { 1, 1, 1, 2 } }, { ISD::UMIN, MVT::v2i64, { 2, 8, 5, 6 } }, { ISD::UMIN, MVT::v4i64, { 2, 8, 5, 8 } }, { ISD::UMIN, MVT::v8i32, { 1, 1, 1, 2 } }, { ISD::UMIN, MVT::v16i16, { 1, 1, 1, 2 } }, { ISD::UMIN, MVT::v32i8, { 1, 1, 1, 2 } }, { ISD::USUBSAT, MVT::v16i16, { 1 } }, { ISD::USUBSAT, MVT::v32i8, { 1 } }, { ISD::USUBSAT, MVT::v8i32, { 2 } }, // pmaxud + psubd { ISD::FMAXNUM, MVT::f32, { 2, 7, 3, 5 } }, // MAXSS + CMPUNORDSS + BLENDVPS { ISD::FMAXNUM, MVT::v4f32, { 2, 7, 3, 5 } }, // MAXPS + CMPUNORDPS + BLENDVPS { ISD::FMAXNUM, MVT::v8f32, { 3, 7, 3, 6 } }, // MAXPS + CMPUNORDPS + BLENDVPS { ISD::FMAXNUM, MVT::f64, { 2, 7, 3, 5 } }, // MAXSD + CMPUNORDSD + BLENDVPD { ISD::FMAXNUM, MVT::v2f64, { 2, 7, 3, 5 } }, // MAXPD + CMPUNORDPD + BLENDVPD { ISD::FMAXNUM, MVT::v4f64, { 3, 7, 3, 6 } }, // MAXPD + CMPUNORDPD + BLENDVPD { ISD::FSQRT, MVT::f32, { 7, 15, 1, 1 } }, // vsqrtss { ISD::FSQRT, MVT::v4f32, { 7, 15, 1, 1 } }, // vsqrtps { ISD::FSQRT, MVT::v8f32, { 14, 21, 1, 3 } }, // vsqrtps { ISD::FSQRT, MVT::f64, { 14, 21, 1, 1 } }, // vsqrtsd { ISD::FSQRT, MVT::v2f64, { 14, 21, 1, 1 } }, // vsqrtpd { ISD::FSQRT, MVT::v4f64, { 28, 35, 1, 3 } }, // vsqrtpd }; static const CostKindTblEntry AVX1CostTbl[] = { { ISD::ABS, MVT::v4i64, { 6, 8, 6, 12 } }, // VBLENDVPD(X,VPSUBQ(0,X),X) { ISD::ABS, MVT::v8i32, { 3, 6, 4, 5 } }, { ISD::ABS, MVT::v16i16, { 3, 6, 4, 5 } }, { ISD::ABS, MVT::v32i8, { 3, 6, 4, 5 } }, { ISD::BITREVERSE, MVT::v4i64, { 17, 20, 20, 33 } }, // 2 x 128-bit Op + extract/insert { ISD::BITREVERSE, MVT::v2i64, { 8, 13, 10, 16 } }, { ISD::BITREVERSE, MVT::v8i32, { 17, 20, 20, 33 } }, // 2 x 128-bit Op + extract/insert { ISD::BITREVERSE, MVT::v4i32, { 8, 13, 10, 16 } }, { ISD::BITREVERSE, MVT::v16i16, { 17, 20, 20, 33 } }, // 2 x 128-bit Op + extract/insert { ISD::BITREVERSE, MVT::v8i16, { 8, 13, 10, 16 } }, { ISD::BITREVERSE, MVT::v32i8, { 13, 15, 17, 26 } }, // 2 x 128-bit Op + extract/insert { ISD::BITREVERSE, MVT::v16i8, { 7, 7, 9, 13 } }, { ISD::BSWAP, MVT::v4i64, { 5, 6, 5, 10 } }, { ISD::BSWAP, MVT::v2i64, { 2, 2, 1, 3 } }, { ISD::BSWAP, MVT::v8i32, { 5, 6, 5, 10 } }, { ISD::BSWAP, MVT::v4i32, { 2, 2, 1, 3 } }, { ISD::BSWAP, MVT::v16i16, { 5, 6, 5, 10 } }, { ISD::BSWAP, MVT::v8i16, { 2, 2, 1, 3 } }, { ISD::CTLZ, MVT::v4i64, { 29, 33, 49, 58 } }, // 2 x 128-bit Op + extract/insert { ISD::CTLZ, MVT::v2i64, { 14, 24, 24, 28 } }, { ISD::CTLZ, MVT::v8i32, { 24, 28, 39, 48 } }, // 2 x 128-bit Op + extract/insert { ISD::CTLZ, MVT::v4i32, { 12, 20, 19, 23 } }, { ISD::CTLZ, MVT::v16i16, { 19, 22, 29, 38 } }, // 2 x 128-bit Op + extract/insert { ISD::CTLZ, MVT::v8i16, { 9, 16, 14, 18 } }, { ISD::CTLZ, MVT::v32i8, { 14, 15, 19, 28 } }, // 2 x 128-bit Op + extract/insert { ISD::CTLZ, MVT::v16i8, { 7, 12, 9, 13 } }, { ISD::CTPOP, MVT::v4i64, { 14, 18, 19, 28 } }, // 2 x 128-bit Op + extract/insert { ISD::CTPOP, MVT::v2i64, { 7, 14, 10, 14 } }, { ISD::CTPOP, MVT::v8i32, { 18, 24, 27, 36 } }, // 2 x 128-bit Op + extract/insert { ISD::CTPOP, MVT::v4i32, { 9, 20, 14, 18 } }, { ISD::CTPOP, MVT::v16i16, { 16, 21, 22, 31 } }, // 2 x 128-bit Op + extract/insert { ISD::CTPOP, MVT::v8i16, { 8, 18, 11, 15 } }, { ISD::CTPOP, MVT::v32i8, { 13, 15, 16, 25 } }, // 2 x 128-bit Op + extract/insert { ISD::CTPOP, MVT::v16i8, { 6, 12, 8, 12 } }, { ISD::CTTZ, MVT::v4i64, { 17, 22, 24, 33 } }, // 2 x 128-bit Op + extract/insert { ISD::CTTZ, MVT::v2i64, { 9, 19, 13, 17 } }, { ISD::CTTZ, MVT::v8i32, { 21, 27, 32, 41 } }, // 2 x 128-bit Op + extract/insert { ISD::CTTZ, MVT::v4i32, { 11, 24, 17, 21 } }, { ISD::CTTZ, MVT::v16i16, { 18, 24, 27, 36 } }, // 2 x 128-bit Op + extract/insert { ISD::CTTZ, MVT::v8i16, { 9, 21, 14, 18 } }, { ISD::CTTZ, MVT::v32i8, { 15, 18, 21, 30 } }, // 2 x 128-bit Op + extract/insert { ISD::CTTZ, MVT::v16i8, { 8, 16, 11, 15 } }, { ISD::SADDSAT, MVT::v16i16, { 4 } }, // 2 x 128-bit Op + extract/insert { ISD::SADDSAT, MVT::v32i8, { 4 } }, // 2 x 128-bit Op + extract/insert { ISD::SMAX, MVT::v4i64, { 6, 9, 6, 12 } }, // 2 x 128-bit Op + extract/insert { ISD::SMAX, MVT::v2i64, { 3, 7, 2, 4 } }, { ISD::SMAX, MVT::v8i32, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::SMAX, MVT::v16i16, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::SMAX, MVT::v32i8, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::SMIN, MVT::v4i64, { 6, 9, 6, 12 } }, // 2 x 128-bit Op + extract/insert { ISD::SMIN, MVT::v2i64, { 3, 7, 2, 3 } }, { ISD::SMIN, MVT::v8i32, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::SMIN, MVT::v16i16, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::SMIN, MVT::v32i8, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::SSUBSAT, MVT::v16i16, { 4 } }, // 2 x 128-bit Op + extract/insert { ISD::SSUBSAT, MVT::v32i8, { 4 } }, // 2 x 128-bit Op + extract/insert { ISD::UADDSAT, MVT::v16i16, { 4 } }, // 2 x 128-bit Op + extract/insert { ISD::UADDSAT, MVT::v32i8, { 4 } }, // 2 x 128-bit Op + extract/insert { ISD::UADDSAT, MVT::v8i32, { 8 } }, // 2 x 128-bit Op + extract/insert { ISD::UMAX, MVT::v4i64, { 9, 10, 11, 17 } }, // 2 x 128-bit Op + extract/insert { ISD::UMAX, MVT::v2i64, { 4, 8, 5, 7 } }, { ISD::UMAX, MVT::v8i32, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::UMAX, MVT::v16i16, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::UMAX, MVT::v32i8, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::UMIN, MVT::v4i64, { 9, 10, 11, 17 } }, // 2 x 128-bit Op + extract/insert { ISD::UMIN, MVT::v2i64, { 4, 8, 5, 7 } }, { ISD::UMIN, MVT::v8i32, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::UMIN, MVT::v16i16, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::UMIN, MVT::v32i8, { 4, 6, 5, 6 } }, // 2 x 128-bit Op + extract/insert { ISD::USUBSAT, MVT::v16i16, { 4 } }, // 2 x 128-bit Op + extract/insert { ISD::USUBSAT, MVT::v32i8, { 4 } }, // 2 x 128-bit Op + extract/insert { ISD::USUBSAT, MVT::v8i32, { 6 } }, // 2 x 128-bit Op + extract/insert { ISD::FMAXNUM, MVT::f32, { 3, 6, 3, 5 } }, // MAXSS + CMPUNORDSS + BLENDVPS { ISD::FMAXNUM, MVT::v4f32, { 3, 6, 3, 5 } }, // MAXPS + CMPUNORDPS + BLENDVPS { ISD::FMAXNUM, MVT::v8f32, { 5, 7, 3, 10 } }, // MAXPS + CMPUNORDPS + BLENDVPS { ISD::FMAXNUM, MVT::f64, { 3, 6, 3, 5 } }, // MAXSD + CMPUNORDSD + BLENDVPD { ISD::FMAXNUM, MVT::v2f64, { 3, 6, 3, 5 } }, // MAXPD + CMPUNORDPD + BLENDVPD { ISD::FMAXNUM, MVT::v4f64, { 5, 7, 3, 10 } }, // MAXPD + CMPUNORDPD + BLENDVPD { ISD::FSQRT, MVT::f32, { 21, 21, 1, 1 } }, // vsqrtss { ISD::FSQRT, MVT::v4f32, { 21, 21, 1, 1 } }, // vsqrtps { ISD::FSQRT, MVT::v8f32, { 42, 42, 1, 3 } }, // vsqrtps { ISD::FSQRT, MVT::f64, { 27, 27, 1, 1 } }, // vsqrtsd { ISD::FSQRT, MVT::v2f64, { 27, 27, 1, 1 } }, // vsqrtpd { ISD::FSQRT, MVT::v4f64, { 54, 54, 1, 3 } }, // vsqrtpd }; static const CostKindTblEntry GLMCostTbl[] = { { ISD::FSQRT, MVT::f32, { 19, 20, 1, 1 } }, // sqrtss { ISD::FSQRT, MVT::v4f32, { 37, 41, 1, 5 } }, // sqrtps { ISD::FSQRT, MVT::f64, { 34, 35, 1, 1 } }, // sqrtsd { ISD::FSQRT, MVT::v2f64, { 67, 71, 1, 5 } }, // sqrtpd }; static const CostKindTblEntry SLMCostTbl[] = { { ISD::BSWAP, MVT::v2i64, { 5, 5, 1, 5 } }, { ISD::BSWAP, MVT::v4i32, { 5, 5, 1, 5 } }, { ISD::BSWAP, MVT::v8i16, { 5, 5, 1, 5 } }, { ISD::FSQRT, MVT::f32, { 20, 20, 1, 1 } }, // sqrtss { ISD::FSQRT, MVT::v4f32, { 40, 41, 1, 5 } }, // sqrtps { ISD::FSQRT, MVT::f64, { 35, 35, 1, 1 } }, // sqrtsd { ISD::FSQRT, MVT::v2f64, { 70, 71, 1, 5 } }, // sqrtpd }; static const CostKindTblEntry SSE42CostTbl[] = { { ISD::USUBSAT, MVT::v4i32, { 2 } }, // pmaxud + psubd { ISD::UADDSAT, MVT::v4i32, { 3 } }, // not + pminud + paddd { ISD::FMAXNUM, MVT::f32, { 5, 5, 7, 7 } }, // MAXSS + CMPUNORDSS + BLENDVPS { ISD::FMAXNUM, MVT::v4f32, { 4, 4, 4, 5 } }, // MAXPS + CMPUNORDPS + BLENDVPS { ISD::FMAXNUM, MVT::f64, { 5, 5, 7, 7 } }, // MAXSD + CMPUNORDSD + BLENDVPD { ISD::FMAXNUM, MVT::v2f64, { 4, 4, 4, 5 } }, // MAXPD + CMPUNORDPD + BLENDVPD { ISD::FSQRT, MVT::f32, { 18, 18, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FSQRT, MVT::v4f32, { 18, 18, 1, 1 } }, // Nehalem from http://www.agner.org/ }; static const CostKindTblEntry SSE41CostTbl[] = { { ISD::ABS, MVT::v2i64, { 3, 4, 3, 5 } }, // BLENDVPD(X,PSUBQ(0,X),X) { ISD::SMAX, MVT::v2i64, { 3, 7, 2, 3 } }, { ISD::SMAX, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::SMAX, MVT::v16i8, { 1, 1, 1, 1 } }, { ISD::SMIN, MVT::v2i64, { 3, 7, 2, 3 } }, { ISD::SMIN, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::SMIN, MVT::v16i8, { 1, 1, 1, 1 } }, { ISD::UMAX, MVT::v2i64, { 2, 11, 6, 7 } }, { ISD::UMAX, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::UMAX, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::UMIN, MVT::v2i64, { 2, 11, 6, 7 } }, { ISD::UMIN, MVT::v4i32, { 1, 1, 1, 1 } }, { ISD::UMIN, MVT::v8i16, { 1, 1, 1, 1 } }, }; static const CostKindTblEntry SSSE3CostTbl[] = { { ISD::ABS, MVT::v4i32, { 1, 2, 1, 1 } }, { ISD::ABS, MVT::v8i16, { 1, 2, 1, 1 } }, { ISD::ABS, MVT::v16i8, { 1, 2, 1, 1 } }, { ISD::BITREVERSE, MVT::v2i64, { 16, 20, 11, 21 } }, { ISD::BITREVERSE, MVT::v4i32, { 16, 20, 11, 21 } }, { ISD::BITREVERSE, MVT::v8i16, { 16, 20, 11, 21 } }, { ISD::BITREVERSE, MVT::v16i8, { 11, 12, 10, 16 } }, { ISD::BSWAP, MVT::v2i64, { 2, 3, 1, 5 } }, { ISD::BSWAP, MVT::v4i32, { 2, 3, 1, 5 } }, { ISD::BSWAP, MVT::v8i16, { 2, 3, 1, 5 } }, { ISD::CTLZ, MVT::v2i64, { 18, 28, 28, 35 } }, { ISD::CTLZ, MVT::v4i32, { 15, 20, 22, 28 } }, { ISD::CTLZ, MVT::v8i16, { 13, 17, 16, 22 } }, { ISD::CTLZ, MVT::v16i8, { 11, 15, 10, 16 } }, { ISD::CTPOP, MVT::v2i64, { 13, 19, 12, 18 } }, { ISD::CTPOP, MVT::v4i32, { 18, 24, 16, 22 } }, { ISD::CTPOP, MVT::v8i16, { 13, 18, 14, 20 } }, { ISD::CTPOP, MVT::v16i8, { 11, 12, 10, 16 } }, { ISD::CTTZ, MVT::v2i64, { 13, 25, 15, 22 } }, { ISD::CTTZ, MVT::v4i32, { 18, 26, 19, 25 } }, { ISD::CTTZ, MVT::v8i16, { 13, 20, 17, 23 } }, { ISD::CTTZ, MVT::v16i8, { 11, 16, 13, 19 } } }; static const CostKindTblEntry SSE2CostTbl[] = { { ISD::ABS, MVT::v2i64, { 3, 6, 5, 5 } }, { ISD::ABS, MVT::v4i32, { 1, 4, 4, 4 } }, { ISD::ABS, MVT::v8i16, { 1, 2, 3, 3 } }, { ISD::ABS, MVT::v16i8, { 1, 2, 3, 3 } }, { ISD::BITREVERSE, MVT::v2i64, { 16, 20, 32, 32 } }, { ISD::BITREVERSE, MVT::v4i32, { 16, 20, 30, 30 } }, { ISD::BITREVERSE, MVT::v8i16, { 16, 20, 25, 25 } }, { ISD::BITREVERSE, MVT::v16i8, { 11, 12, 21, 21 } }, { ISD::BSWAP, MVT::v2i64, { 5, 6, 11, 11 } }, { ISD::BSWAP, MVT::v4i32, { 5, 5, 9, 9 } }, { ISD::BSWAP, MVT::v8i16, { 5, 5, 4, 5 } }, { ISD::CTLZ, MVT::v2i64, { 10, 45, 36, 38 } }, { ISD::CTLZ, MVT::v4i32, { 10, 45, 38, 40 } }, { ISD::CTLZ, MVT::v8i16, { 9, 38, 32, 34 } }, { ISD::CTLZ, MVT::v16i8, { 8, 39, 29, 32 } }, { ISD::CTPOP, MVT::v2i64, { 12, 26, 16, 18 } }, { ISD::CTPOP, MVT::v4i32, { 15, 29, 21, 23 } }, { ISD::CTPOP, MVT::v8i16, { 13, 25, 18, 20 } }, { ISD::CTPOP, MVT::v16i8, { 10, 21, 14, 16 } }, { ISD::CTTZ, MVT::v2i64, { 14, 28, 19, 21 } }, { ISD::CTTZ, MVT::v4i32, { 18, 31, 24, 26 } }, { ISD::CTTZ, MVT::v8i16, { 16, 27, 21, 23 } }, { ISD::CTTZ, MVT::v16i8, { 13, 23, 17, 19 } }, { ISD::SADDSAT, MVT::v8i16, { 1 } }, { ISD::SADDSAT, MVT::v16i8, { 1 } }, { ISD::SMAX, MVT::v2i64, { 4, 8, 15, 15 } }, { ISD::SMAX, MVT::v4i32, { 2, 4, 5, 5 } }, { ISD::SMAX, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::SMAX, MVT::v16i8, { 2, 4, 5, 5 } }, { ISD::SMIN, MVT::v2i64, { 4, 8, 15, 15 } }, { ISD::SMIN, MVT::v4i32, { 2, 4, 5, 5 } }, { ISD::SMIN, MVT::v8i16, { 1, 1, 1, 1 } }, { ISD::SMIN, MVT::v16i8, { 2, 4, 5, 5 } }, { ISD::SSUBSAT, MVT::v8i16, { 1 } }, { ISD::SSUBSAT, MVT::v16i8, { 1 } }, { ISD::UADDSAT, MVT::v8i16, { 1 } }, { ISD::UADDSAT, MVT::v16i8, { 1 } }, { ISD::UMAX, MVT::v2i64, { 4, 8, 15, 15 } }, { ISD::UMAX, MVT::v4i32, { 2, 5, 8, 8 } }, { ISD::UMAX, MVT::v8i16, { 1, 3, 3, 3 } }, { ISD::UMAX, MVT::v16i8, { 1, 1, 1, 1 } }, { ISD::UMIN, MVT::v2i64, { 4, 8, 15, 15 } }, { ISD::UMIN, MVT::v4i32, { 2, 5, 8, 8 } }, { ISD::UMIN, MVT::v8i16, { 1, 3, 3, 3 } }, { ISD::UMIN, MVT::v16i8, { 1, 1, 1, 1 } }, { ISD::USUBSAT, MVT::v8i16, { 1 } }, { ISD::USUBSAT, MVT::v16i8, { 1 } }, { ISD::FMAXNUM, MVT::f64, { 5, 5, 7, 7 } }, { ISD::FMAXNUM, MVT::v2f64, { 4, 6, 6, 6 } }, { ISD::FSQRT, MVT::f64, { 32, 32, 1, 1 } }, // Nehalem from http://www.agner.org/ { ISD::FSQRT, MVT::v2f64, { 32, 32, 1, 1 } }, // Nehalem from http://www.agner.org/ }; static const CostKindTblEntry SSE1CostTbl[] = { { ISD::FMAXNUM, MVT::f32, { 5, 5, 7, 7 } }, { ISD::FMAXNUM, MVT::v4f32, { 4, 6, 6, 6 } }, { ISD::FSQRT, MVT::f32, { 28, 30, 1, 2 } }, // Pentium III from http://www.agner.org/ { ISD::FSQRT, MVT::v4f32, { 56, 56, 1, 2 } }, // Pentium III from http://www.agner.org/ }; static const CostKindTblEntry BMI64CostTbl[] = { // 64-bit targets { ISD::CTTZ, MVT::i64, { 1 } }, }; static const CostKindTblEntry BMI32CostTbl[] = { // 32 or 64-bit targets { ISD::CTTZ, MVT::i32, { 1 } }, { ISD::CTTZ, MVT::i16, { 1 } }, { ISD::CTTZ, MVT::i8, { 1 } }, }; static const CostKindTblEntry LZCNT64CostTbl[] = { // 64-bit targets { ISD::CTLZ, MVT::i64, { 1 } }, }; static const CostKindTblEntry LZCNT32CostTbl[] = { // 32 or 64-bit targets { ISD::CTLZ, MVT::i32, { 1 } }, { ISD::CTLZ, MVT::i16, { 2 } }, { ISD::CTLZ, MVT::i8, { 2 } }, }; static const CostKindTblEntry POPCNT64CostTbl[] = { // 64-bit targets { ISD::CTPOP, MVT::i64, { 1, 1, 1, 1 } }, // popcnt }; static const CostKindTblEntry POPCNT32CostTbl[] = { // 32 or 64-bit targets { ISD::CTPOP, MVT::i32, { 1, 1, 1, 1 } }, // popcnt { ISD::CTPOP, MVT::i16, { 1, 1, 2, 2 } }, // popcnt(zext()) { ISD::CTPOP, MVT::i8, { 1, 1, 2, 2 } }, // popcnt(zext()) }; static const CostKindTblEntry X64CostTbl[] = { // 64-bit targets { ISD::ABS, MVT::i64, { 1, 2, 3, 4 } }, // SUB+CMOV { ISD::BITREVERSE, MVT::i64, { 10, 12, 20, 22 } }, { ISD::BSWAP, MVT::i64, { 1, 2, 1, 2 } }, { ISD::CTLZ, MVT::i64, { 4 } }, // BSR+XOR or BSR+XOR+CMOV { ISD::CTLZ_ZERO_UNDEF, MVT::i64,{ 1, 1, 1, 1 } }, // BSR+XOR { ISD::CTTZ, MVT::i64, { 3 } }, // TEST+BSF+CMOV/BRANCH { ISD::CTTZ_ZERO_UNDEF, MVT::i64,{ 1, 1, 1, 1 } }, // BSR { ISD::CTPOP, MVT::i64, { 10, 6, 19, 19 } }, { ISD::ROTL, MVT::i64, { 2, 3, 1, 3 } }, { ISD::ROTR, MVT::i64, { 2, 3, 1, 3 } }, { X86ISD::VROTLI, MVT::i64, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::i64, { 4, 4, 1, 4 } }, { ISD::SMAX, MVT::i64, { 1, 3, 2, 3 } }, { ISD::SMIN, MVT::i64, { 1, 3, 2, 3 } }, { ISD::UMAX, MVT::i64, { 1, 3, 2, 3 } }, { ISD::UMIN, MVT::i64, { 1, 3, 2, 3 } }, { ISD::SADDO, MVT::i64, { 1 } }, { ISD::UADDO, MVT::i64, { 1 } }, { ISD::UMULO, MVT::i64, { 2 } }, // mulq + seto }; static const CostKindTblEntry X86CostTbl[] = { // 32 or 64-bit targets { ISD::ABS, MVT::i32, { 1, 2, 3, 4 } }, // SUB+XOR+SRA or SUB+CMOV { ISD::ABS, MVT::i16, { 2, 2, 3, 4 } }, // SUB+XOR+SRA or SUB+CMOV { ISD::ABS, MVT::i8, { 2, 4, 4, 4 } }, // SUB+XOR+SRA { ISD::BITREVERSE, MVT::i32, { 9, 12, 17, 19 } }, { ISD::BITREVERSE, MVT::i16, { 9, 12, 17, 19 } }, { ISD::BITREVERSE, MVT::i8, { 7, 9, 13, 14 } }, { ISD::BSWAP, MVT::i32, { 1, 1, 1, 1 } }, { ISD::BSWAP, MVT::i16, { 1, 2, 1, 2 } }, // ROL { ISD::CTLZ, MVT::i32, { 4 } }, // BSR+XOR or BSR+XOR+CMOV { ISD::CTLZ, MVT::i16, { 4 } }, // BSR+XOR or BSR+XOR+CMOV { ISD::CTLZ, MVT::i8, { 4 } }, // BSR+XOR or BSR+XOR+CMOV { ISD::CTLZ_ZERO_UNDEF, MVT::i32,{ 1, 1, 1, 1 } }, // BSR+XOR { ISD::CTLZ_ZERO_UNDEF, MVT::i16,{ 2, 2, 3, 3 } }, // BSR+XOR { ISD::CTLZ_ZERO_UNDEF, MVT::i8, { 2, 2, 3, 3 } }, // BSR+XOR { ISD::CTTZ, MVT::i32, { 3 } }, // TEST+BSF+CMOV/BRANCH { ISD::CTTZ, MVT::i16, { 3 } }, // TEST+BSF+CMOV/BRANCH { ISD::CTTZ, MVT::i8, { 3 } }, // TEST+BSF+CMOV/BRANCH { ISD::CTTZ_ZERO_UNDEF, MVT::i32,{ 1, 1, 1, 1 } }, // BSF { ISD::CTTZ_ZERO_UNDEF, MVT::i16,{ 2, 2, 1, 1 } }, // BSF { ISD::CTTZ_ZERO_UNDEF, MVT::i8, { 2, 2, 1, 1 } }, // BSF { ISD::CTPOP, MVT::i32, { 8, 7, 15, 15 } }, { ISD::CTPOP, MVT::i16, { 9, 8, 17, 17 } }, { ISD::CTPOP, MVT::i8, { 7, 6, 13, 13 } }, { ISD::ROTL, MVT::i32, { 2, 3, 1, 3 } }, { ISD::ROTL, MVT::i16, { 2, 3, 1, 3 } }, { ISD::ROTL, MVT::i8, { 2, 3, 1, 3 } }, { ISD::ROTR, MVT::i32, { 2, 3, 1, 3 } }, { ISD::ROTR, MVT::i16, { 2, 3, 1, 3 } }, { ISD::ROTR, MVT::i8, { 2, 3, 1, 3 } }, { X86ISD::VROTLI, MVT::i32, { 1, 1, 1, 1 } }, { X86ISD::VROTLI, MVT::i16, { 1, 1, 1, 1 } }, { X86ISD::VROTLI, MVT::i8, { 1, 1, 1, 1 } }, { ISD::FSHL, MVT::i32, { 4, 4, 1, 4 } }, { ISD::FSHL, MVT::i16, { 4, 4, 2, 5 } }, { ISD::FSHL, MVT::i8, { 4, 4, 2, 5 } }, { ISD::SMAX, MVT::i32, { 1, 2, 2, 3 } }, { ISD::SMAX, MVT::i16, { 1, 4, 2, 4 } }, { ISD::SMAX, MVT::i8, { 1, 4, 2, 4 } }, { ISD::SMIN, MVT::i32, { 1, 2, 2, 3 } }, { ISD::SMIN, MVT::i16, { 1, 4, 2, 4 } }, { ISD::SMIN, MVT::i8, { 1, 4, 2, 4 } }, { ISD::UMAX, MVT::i32, { 1, 2, 2, 3 } }, { ISD::UMAX, MVT::i16, { 1, 4, 2, 4 } }, { ISD::UMAX, MVT::i8, { 1, 4, 2, 4 } }, { ISD::UMIN, MVT::i32, { 1, 2, 2, 3 } }, { ISD::UMIN, MVT::i16, { 1, 4, 2, 4 } }, { ISD::UMIN, MVT::i8, { 1, 4, 2, 4 } }, { ISD::SADDO, MVT::i32, { 1 } }, { ISD::SADDO, MVT::i16, { 1 } }, { ISD::SADDO, MVT::i8, { 1 } }, { ISD::UADDO, MVT::i32, { 1 } }, { ISD::UADDO, MVT::i16, { 1 } }, { ISD::UADDO, MVT::i8, { 1 } }, { ISD::UMULO, MVT::i32, { 2 } }, // mul + seto { ISD::UMULO, MVT::i16, { 2 } }, { ISD::UMULO, MVT::i8, { 2 } }, }; Type *RetTy = ICA.getReturnType(); Type *OpTy = RetTy; Intrinsic::ID IID = ICA.getID(); unsigned ISD = ISD::DELETED_NODE; switch (IID) { default: break; case Intrinsic::abs: ISD = ISD::ABS; break; case Intrinsic::bitreverse: ISD = ISD::BITREVERSE; break; case Intrinsic::bswap: ISD = ISD::BSWAP; break; case Intrinsic::ctlz: ISD = ISD::CTLZ; break; case Intrinsic::ctpop: ISD = ISD::CTPOP; break; case Intrinsic::cttz: ISD = ISD::CTTZ; break; case Intrinsic::fshl: ISD = ISD::FSHL; if (!ICA.isTypeBasedOnly()) { const SmallVectorImpl &Args = ICA.getArgs(); if (Args[0] == Args[1]) { ISD = ISD::ROTL; // Handle scalar constant rotation amounts. // TODO: Handle vector + funnel-shift cases. if (isa_and_nonnull(Args[2])) ISD = X86ISD::VROTLI; } } break; case Intrinsic::fshr: // FSHR has same costs so don't duplicate. ISD = ISD::FSHL; if (!ICA.isTypeBasedOnly()) { const SmallVectorImpl &Args = ICA.getArgs(); if (Args[0] == Args[1]) { // Handle scalar constant rotation amount. // TODO: Handle vector + funnel-shift cases. ISD = ISD::ROTR; if (isa_and_nonnull(Args[2])) ISD = X86ISD::VROTLI; } } break; case Intrinsic::maxnum: case Intrinsic::minnum: // FMINNUM has same costs so don't duplicate. ISD = ISD::FMAXNUM; break; case Intrinsic::sadd_sat: ISD = ISD::SADDSAT; break; case Intrinsic::smax: ISD = ISD::SMAX; break; case Intrinsic::smin: ISD = ISD::SMIN; break; case Intrinsic::ssub_sat: ISD = ISD::SSUBSAT; break; case Intrinsic::uadd_sat: ISD = ISD::UADDSAT; break; case Intrinsic::umax: ISD = ISD::UMAX; break; case Intrinsic::umin: ISD = ISD::UMIN; break; case Intrinsic::usub_sat: ISD = ISD::USUBSAT; break; case Intrinsic::sqrt: ISD = ISD::FSQRT; break; case Intrinsic::sadd_with_overflow: case Intrinsic::ssub_with_overflow: // SSUBO has same costs so don't duplicate. ISD = ISD::SADDO; OpTy = RetTy->getContainedType(0); break; case Intrinsic::uadd_with_overflow: case Intrinsic::usub_with_overflow: // USUBO has same costs so don't duplicate. ISD = ISD::UADDO; OpTy = RetTy->getContainedType(0); break; case Intrinsic::umul_with_overflow: case Intrinsic::smul_with_overflow: // SMULO has same costs so don't duplicate. ISD = ISD::UMULO; OpTy = RetTy->getContainedType(0); break; } if (ISD != ISD::DELETED_NODE) { // Legalize the type. std::pair LT = getTypeLegalizationCost(OpTy); MVT MTy = LT.second; // Attempt to lookup cost. if (ISD == ISD::BITREVERSE && ST->hasGFNI() && ST->hasSSSE3() && MTy.isVector()) { // With PSHUFB the code is very similar for all types. If we have integer // byte operations, we just need a GF2P8AFFINEQB for vXi8. For other types // we also need a PSHUFB. unsigned Cost = MTy.getVectorElementType() == MVT::i8 ? 1 : 2; // Without byte operations, we need twice as many GF2P8AFFINEQB and PSHUFB // instructions. We also need an extract and an insert. if (!(MTy.is128BitVector() || (ST->hasAVX2() && MTy.is256BitVector()) || (ST->hasBWI() && MTy.is512BitVector()))) Cost = Cost * 2 + 2; return LT.first * Cost; } // Without BMI/LZCNT see if we're only looking for a *_ZERO_UNDEF cost. if (((ISD == ISD::CTTZ && !ST->hasBMI()) || (ISD == ISD::CTLZ && !ST->hasLZCNT())) && !MTy.isVector() && !ICA.isTypeBasedOnly()) { const SmallVectorImpl &Args = ICA.getArgs(); if (auto *Cst = dyn_cast(Args[1])) if (Cst->isAllOnesValue()) ISD = ISD == ISD::CTTZ ? ISD::CTTZ_ZERO_UNDEF : ISD::CTLZ_ZERO_UNDEF; } // FSQRT is a single instruction. if (ISD == ISD::FSQRT && CostKind == TTI::TCK_CodeSize) return LT.first; auto adjustTableCost = [](int ISD, unsigned Cost, InstructionCost LegalizationCost, FastMathFlags FMF) { // If there are no NANs to deal with, then these are reduced to a // single MIN** or MAX** instruction instead of the MIN/CMP/SELECT that we // assume is used in the non-fast case. if (ISD == ISD::FMAXNUM || ISD == ISD::FMINNUM) { if (FMF.noNaNs()) return LegalizationCost * 1; } return LegalizationCost * (int)Cost; }; if (ST->useGLMDivSqrtCosts()) if (const auto *Entry = CostTableLookup(GLMCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->useSLMArithCosts()) if (const auto *Entry = CostTableLookup(SLMCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasVBMI2()) if (const auto *Entry = CostTableLookup(AVX512VBMI2CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasBITALG()) if (const auto *Entry = CostTableLookup(AVX512BITALGCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasVPOPCNTDQ()) if (const auto *Entry = CostTableLookup(AVX512VPOPCNTDQCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasCDI()) if (const auto *Entry = CostTableLookup(AVX512CDCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasBWI()) if (const auto *Entry = CostTableLookup(AVX512BWCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasAVX512()) if (const auto *Entry = CostTableLookup(AVX512CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasXOP()) if (const auto *Entry = CostTableLookup(XOPCostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasSSE42()) if (const auto *Entry = CostTableLookup(SSE42CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasSSE41()) if (const auto *Entry = CostTableLookup(SSE41CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasSSSE3()) if (const auto *Entry = CostTableLookup(SSSE3CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasSSE1()) if (const auto *Entry = CostTableLookup(SSE1CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (ST->hasBMI()) { if (ST->is64Bit()) if (const auto *Entry = CostTableLookup(BMI64CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (const auto *Entry = CostTableLookup(BMI32CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); } if (ST->hasLZCNT()) { if (ST->is64Bit()) if (const auto *Entry = CostTableLookup(LZCNT64CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (const auto *Entry = CostTableLookup(LZCNT32CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); } if (ST->hasPOPCNT()) { if (ST->is64Bit()) if (const auto *Entry = CostTableLookup(POPCNT64CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (const auto *Entry = CostTableLookup(POPCNT32CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); } if (ISD == ISD::BSWAP && ST->hasMOVBE() && ST->hasFastMOVBE()) { if (const Instruction *II = ICA.getInst()) { if (II->hasOneUse() && isa(II->user_back())) return TTI::TCC_Free; if (auto *LI = dyn_cast(II->getOperand(0))) { if (LI->hasOneUse()) return TTI::TCC_Free; } } } if (ST->is64Bit()) if (const auto *Entry = CostTableLookup(X64CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); if (const auto *Entry = CostTableLookup(X86CostTbl, ISD, MTy)) if (auto KindCost = Entry->Cost[CostKind]) return adjustTableCost(Entry->ISD, *KindCost, LT.first, ICA.getFlags()); } return BaseT::getIntrinsicInstrCost(ICA, CostKind); } InstructionCost X86TTIImpl::getVectorInstrCost(unsigned Opcode, Type *Val, TTI::TargetCostKind CostKind, unsigned Index, Value *Op0, Value *Op1) { static const CostTblEntry SLMCostTbl[] = { { ISD::EXTRACT_VECTOR_ELT, MVT::i8, 4 }, { ISD::EXTRACT_VECTOR_ELT, MVT::i16, 4 }, { ISD::EXTRACT_VECTOR_ELT, MVT::i32, 4 }, { ISD::EXTRACT_VECTOR_ELT, MVT::i64, 7 } }; assert(Val->isVectorTy() && "This must be a vector type"); Type *ScalarType = Val->getScalarType(); InstructionCost RegisterFileMoveCost = 0; // Non-immediate extraction/insertion can be handled as a sequence of // aliased loads+stores via the stack. if (Index == -1U && (Opcode == Instruction::ExtractElement || Opcode == Instruction::InsertElement)) { // TODO: On some SSE41+ targets, we expand to cmp+splat+select patterns: // inselt N0, N1, N2 --> select (SplatN2 == {0,1,2...}) ? SplatN1 : N0. // TODO: Move this to BasicTTIImpl.h? We'd need better gep + index handling. assert(isa(Val) && "Fixed vector type expected"); Align VecAlign = DL.getPrefTypeAlign(Val); Align SclAlign = DL.getPrefTypeAlign(ScalarType); // Extract - store vector to stack, load scalar. if (Opcode == Instruction::ExtractElement) { return getMemoryOpCost(Instruction::Store, Val, VecAlign, 0, CostKind) + getMemoryOpCost(Instruction::Load, ScalarType, SclAlign, 0, CostKind); } // Insert - store vector to stack, store scalar, load vector. if (Opcode == Instruction::InsertElement) { return getMemoryOpCost(Instruction::Store, Val, VecAlign, 0, CostKind) + getMemoryOpCost(Instruction::Store, ScalarType, SclAlign, 0, CostKind) + getMemoryOpCost(Instruction::Load, Val, VecAlign, 0, CostKind); } } if (Index != -1U && (Opcode == Instruction::ExtractElement || Opcode == Instruction::InsertElement)) { // Extraction of vXi1 elements are now efficiently handled by MOVMSK. if (Opcode == Instruction::ExtractElement && ScalarType->getScalarSizeInBits() == 1 && cast(Val)->getNumElements() > 1) return 1; // Legalize the type. std::pair LT = getTypeLegalizationCost(Val); // This type is legalized to a scalar type. if (!LT.second.isVector()) return 0; // The type may be split. Normalize the index to the new type. unsigned SizeInBits = LT.second.getSizeInBits(); unsigned NumElts = LT.second.getVectorNumElements(); unsigned SubNumElts = NumElts; Index = Index % NumElts; // For >128-bit vectors, we need to extract higher 128-bit subvectors. // For inserts, we also need to insert the subvector back. if (SizeInBits > 128) { assert((SizeInBits % 128) == 0 && "Illegal vector"); unsigned NumSubVecs = SizeInBits / 128; SubNumElts = NumElts / NumSubVecs; if (SubNumElts <= Index) { RegisterFileMoveCost += (Opcode == Instruction::InsertElement ? 2 : 1); Index %= SubNumElts; } } MVT MScalarTy = LT.second.getScalarType(); auto IsCheapPInsrPExtrInsertPS = [&]() { // Assume pinsr/pextr XMM <-> GPR is relatively cheap on all targets. // Also, assume insertps is relatively cheap on all >= SSE41 targets. return (MScalarTy == MVT::i16 && ST->hasSSE2()) || (MScalarTy.isInteger() && ST->hasSSE41()) || (MScalarTy == MVT::f32 && ST->hasSSE41() && Opcode == Instruction::InsertElement); }; if (Index == 0) { // Floating point scalars are already located in index #0. // Many insertions to #0 can fold away for scalar fp-ops, so let's assume // true for all. if (ScalarType->isFloatingPointTy() && (Opcode != Instruction::InsertElement || !Op0 || isa(Op0))) return RegisterFileMoveCost; if (Opcode == Instruction::InsertElement && isa_and_nonnull(Op0)) { // Consider the gather cost to be cheap. if (isa_and_nonnull(Op1)) return RegisterFileMoveCost; if (!IsCheapPInsrPExtrInsertPS()) { // mov constant-to-GPR + movd/movq GPR -> XMM. if (isa_and_nonnull(Op1) && Op1->getType()->isIntegerTy()) return 2 + RegisterFileMoveCost; // Assume movd/movq GPR -> XMM is relatively cheap on all targets. return 1 + RegisterFileMoveCost; } } // Assume movd/movq XMM -> GPR is relatively cheap on all targets. if (ScalarType->isIntegerTy() && Opcode == Instruction::ExtractElement) return 1 + RegisterFileMoveCost; } int ISD = TLI->InstructionOpcodeToISD(Opcode); assert(ISD && "Unexpected vector opcode"); if (ST->useSLMArithCosts()) if (auto *Entry = CostTableLookup(SLMCostTbl, ISD, MScalarTy)) return Entry->Cost + RegisterFileMoveCost; // Consider cheap cases. if (IsCheapPInsrPExtrInsertPS()) return 1 + RegisterFileMoveCost; // For extractions we just need to shuffle the element to index 0, which // should be very cheap (assume cost = 1). For insertions we need to shuffle // the elements to its destination. In both cases we must handle the // subvector move(s). // If the vector type is already less than 128-bits then don't reduce it. // TODO: Under what circumstances should we shuffle using the full width? InstructionCost ShuffleCost = 1; if (Opcode == Instruction::InsertElement) { auto *SubTy = cast(Val); EVT VT = TLI->getValueType(DL, Val); if (VT.getScalarType() != MScalarTy || VT.getSizeInBits() >= 128) SubTy = FixedVectorType::get(ScalarType, SubNumElts); ShuffleCost = getShuffleCost(TTI::SK_PermuteTwoSrc, SubTy, std::nullopt, CostKind, 0, SubTy); } int IntOrFpCost = ScalarType->isFloatingPointTy() ? 0 : 1; return ShuffleCost + IntOrFpCost + RegisterFileMoveCost; } return BaseT::getVectorInstrCost(Opcode, Val, CostKind, Index, Op0, Op1) + RegisterFileMoveCost; } InstructionCost X86TTIImpl::getScalarizationOverhead(VectorType *Ty, const APInt &DemandedElts, bool Insert, bool Extract, TTI::TargetCostKind CostKind) { assert(DemandedElts.getBitWidth() == cast(Ty)->getNumElements() && "Vector size mismatch"); std::pair LT = getTypeLegalizationCost(Ty); MVT MScalarTy = LT.second.getScalarType(); unsigned LegalVectorBitWidth = LT.second.getSizeInBits(); InstructionCost Cost = 0; constexpr unsigned LaneBitWidth = 128; assert((LegalVectorBitWidth < LaneBitWidth || (LegalVectorBitWidth % LaneBitWidth) == 0) && "Illegal vector"); const int NumLegalVectors = *LT.first.getValue(); assert(NumLegalVectors >= 0 && "Negative cost!"); // For insertions, a ISD::BUILD_VECTOR style vector initialization can be much // cheaper than an accumulation of ISD::INSERT_VECTOR_ELT. if (Insert) { if ((MScalarTy == MVT::i16 && ST->hasSSE2()) || (MScalarTy.isInteger() && ST->hasSSE41()) || (MScalarTy == MVT::f32 && ST->hasSSE41())) { // For types we can insert directly, insertion into 128-bit sub vectors is // cheap, followed by a cheap chain of concatenations. if (LegalVectorBitWidth <= LaneBitWidth) { Cost += BaseT::getScalarizationOverhead(Ty, DemandedElts, Insert, /*Extract*/ false, CostKind); } else { // In each 128-lane, if at least one index is demanded but not all // indices are demanded and this 128-lane is not the first 128-lane of // the legalized-vector, then this 128-lane needs a extracti128; If in // each 128-lane, there is at least one demanded index, this 128-lane // needs a inserti128. // The following cases will help you build a better understanding: // Assume we insert several elements into a v8i32 vector in avx2, // Case#1: inserting into 1th index needs vpinsrd + inserti128. // Case#2: inserting into 5th index needs extracti128 + vpinsrd + // inserti128. // Case#3: inserting into 4,5,6,7 index needs 4*vpinsrd + inserti128. assert((LegalVectorBitWidth % LaneBitWidth) == 0 && "Illegal vector"); unsigned NumLegalLanes = LegalVectorBitWidth / LaneBitWidth; unsigned NumLanesTotal = NumLegalLanes * NumLegalVectors; unsigned NumLegalElts = LT.second.getVectorNumElements() * NumLegalVectors; assert(NumLegalElts >= DemandedElts.getBitWidth() && "Vector has been legalized to smaller element count"); assert((NumLegalElts % NumLanesTotal) == 0 && "Unexpected elts per lane"); unsigned NumEltsPerLane = NumLegalElts / NumLanesTotal; APInt WidenedDemandedElts = DemandedElts.zext(NumLegalElts); auto *LaneTy = FixedVectorType::get(Ty->getElementType(), NumEltsPerLane); for (unsigned I = 0; I != NumLanesTotal; ++I) { APInt LaneEltMask = WidenedDemandedElts.extractBits( NumEltsPerLane, NumEltsPerLane * I); if (LaneEltMask.isZero()) continue; // FIXME: we don't need to extract if all non-demanded elements // are legalization-inserted padding. if (!LaneEltMask.isAllOnes()) Cost += getShuffleCost(TTI::SK_ExtractSubvector, Ty, std::nullopt, CostKind, I * NumEltsPerLane, LaneTy); Cost += BaseT::getScalarizationOverhead(LaneTy, LaneEltMask, Insert, /*Extract*/ false, CostKind); } APInt AffectedLanes = APIntOps::ScaleBitMask(WidenedDemandedElts, NumLanesTotal); APInt FullyAffectedLegalVectors = APIntOps::ScaleBitMask( AffectedLanes, NumLegalVectors, /*MatchAllBits=*/true); for (int LegalVec = 0; LegalVec != NumLegalVectors; ++LegalVec) { for (unsigned Lane = 0; Lane != NumLegalLanes; ++Lane) { unsigned I = NumLegalLanes * LegalVec + Lane; // No need to insert unaffected lane; or lane 0 of each legal vector // iff ALL lanes of that vector were affected and will be inserted. if (!AffectedLanes[I] || (Lane == 0 && FullyAffectedLegalVectors[LegalVec])) continue; Cost += getShuffleCost(TTI::SK_InsertSubvector, Ty, std::nullopt, CostKind, I * NumEltsPerLane, LaneTy); } } } } else if (LT.second.isVector()) { // Without fast insertion, we need to use MOVD/MOVQ to pass each demanded // integer element as a SCALAR_TO_VECTOR, then we build the vector as a // series of UNPCK followed by CONCAT_VECTORS - all of these can be // considered cheap. if (Ty->isIntOrIntVectorTy()) Cost += DemandedElts.popcount(); // Get the smaller of the legalized or original pow2-extended number of // vector elements, which represents the number of unpacks we'll end up // performing. unsigned NumElts = LT.second.getVectorNumElements(); unsigned Pow2Elts = PowerOf2Ceil(cast(Ty)->getNumElements()); Cost += (std::min(NumElts, Pow2Elts) - 1) * LT.first; } } if (Extract) { // vXi1 can be efficiently extracted with MOVMSK. // TODO: AVX512 predicate mask handling. // NOTE: This doesn't work well for roundtrip scalarization. if (!Insert && Ty->getScalarSizeInBits() == 1 && !ST->hasAVX512()) { unsigned NumElts = cast(Ty)->getNumElements(); unsigned MaxElts = ST->hasAVX2() ? 32 : 16; unsigned MOVMSKCost = (NumElts + MaxElts - 1) / MaxElts; return MOVMSKCost; } if (LT.second.isVector()) { unsigned NumLegalElts = LT.second.getVectorNumElements() * NumLegalVectors; assert(NumLegalElts >= DemandedElts.getBitWidth() && "Vector has been legalized to smaller element count"); // If we're extracting elements from a 128-bit subvector lane, // we only need to extract each lane once, not for every element. if (LegalVectorBitWidth > LaneBitWidth) { unsigned NumLegalLanes = LegalVectorBitWidth / LaneBitWidth; unsigned NumLanesTotal = NumLegalLanes * NumLegalVectors; assert((NumLegalElts % NumLanesTotal) == 0 && "Unexpected elts per lane"); unsigned NumEltsPerLane = NumLegalElts / NumLanesTotal; // Add cost for each demanded 128-bit subvector extraction. // Luckily this is a lot easier than for insertion. APInt WidenedDemandedElts = DemandedElts.zext(NumLegalElts); auto *LaneTy = FixedVectorType::get(Ty->getElementType(), NumEltsPerLane); for (unsigned I = 0; I != NumLanesTotal; ++I) { APInt LaneEltMask = WidenedDemandedElts.extractBits( NumEltsPerLane, I * NumEltsPerLane); if (LaneEltMask.isZero()) continue; Cost += getShuffleCost(TTI::SK_ExtractSubvector, Ty, std::nullopt, CostKind, I * NumEltsPerLane, LaneTy); Cost += BaseT::getScalarizationOverhead( LaneTy, LaneEltMask, /*Insert*/ false, Extract, CostKind); } return Cost; } } // Fallback to default extraction. Cost += BaseT::getScalarizationOverhead(Ty, DemandedElts, /*Insert*/ false, Extract, CostKind); } return Cost; } InstructionCost X86TTIImpl::getReplicationShuffleCost(Type *EltTy, int ReplicationFactor, int VF, const APInt &DemandedDstElts, TTI::TargetCostKind CostKind) { const unsigned EltTyBits = DL.getTypeSizeInBits(EltTy); // We don't differentiate element types here, only element bit width. EltTy = IntegerType::getIntNTy(EltTy->getContext(), EltTyBits); auto bailout = [&]() { return BaseT::getReplicationShuffleCost(EltTy, ReplicationFactor, VF, DemandedDstElts, CostKind); }; // For now, only deal with AVX512 cases. if (!ST->hasAVX512()) return bailout(); // Do we have a native shuffle for this element type, or should we promote? unsigned PromEltTyBits = EltTyBits; switch (EltTyBits) { case 32: case 64: break; // AVX512F. case 16: if (!ST->hasBWI()) PromEltTyBits = 32; // promote to i32, AVX512F. break; // AVX512BW case 8: if (!ST->hasVBMI()) PromEltTyBits = 32; // promote to i32, AVX512F. break; // AVX512VBMI case 1: // There is no support for shuffling i1 elements. We *must* promote. if (ST->hasBWI()) { if (ST->hasVBMI()) PromEltTyBits = 8; // promote to i8, AVX512VBMI. else PromEltTyBits = 16; // promote to i16, AVX512BW. break; } PromEltTyBits = 32; // promote to i32, AVX512F. break; default: return bailout(); } auto *PromEltTy = IntegerType::getIntNTy(EltTy->getContext(), PromEltTyBits); auto *SrcVecTy = FixedVectorType::get(EltTy, VF); auto *PromSrcVecTy = FixedVectorType::get(PromEltTy, VF); int NumDstElements = VF * ReplicationFactor; auto *PromDstVecTy = FixedVectorType::get(PromEltTy, NumDstElements); auto *DstVecTy = FixedVectorType::get(EltTy, NumDstElements); // Legalize the types. MVT LegalSrcVecTy = getTypeLegalizationCost(SrcVecTy).second; MVT LegalPromSrcVecTy = getTypeLegalizationCost(PromSrcVecTy).second; MVT LegalPromDstVecTy = getTypeLegalizationCost(PromDstVecTy).second; MVT LegalDstVecTy = getTypeLegalizationCost(DstVecTy).second; // They should have legalized into vector types. if (!LegalSrcVecTy.isVector() || !LegalPromSrcVecTy.isVector() || !LegalPromDstVecTy.isVector() || !LegalDstVecTy.isVector()) return bailout(); if (PromEltTyBits != EltTyBits) { // If we have to perform the shuffle with wider elt type than our data type, // then we will first need to anyext (we don't care about the new bits) // the source elements, and then truncate Dst elements. InstructionCost PromotionCost; PromotionCost += getCastInstrCost( Instruction::SExt, /*Dst=*/PromSrcVecTy, /*Src=*/SrcVecTy, TargetTransformInfo::CastContextHint::None, CostKind); PromotionCost += getCastInstrCost(Instruction::Trunc, /*Dst=*/DstVecTy, /*Src=*/PromDstVecTy, TargetTransformInfo::CastContextHint::None, CostKind); return PromotionCost + getReplicationShuffleCost(PromEltTy, ReplicationFactor, VF, DemandedDstElts, CostKind); } assert(LegalSrcVecTy.getScalarSizeInBits() == EltTyBits && LegalSrcVecTy.getScalarType() == LegalDstVecTy.getScalarType() && "We expect that the legalization doesn't affect the element width, " "doesn't coalesce/split elements."); unsigned NumEltsPerDstVec = LegalDstVecTy.getVectorNumElements(); unsigned NumDstVectors = divideCeil(DstVecTy->getNumElements(), NumEltsPerDstVec); auto *SingleDstVecTy = FixedVectorType::get(EltTy, NumEltsPerDstVec); // Not all the produced Dst elements may be demanded. In our case, // given that a single Dst vector is formed by a single shuffle, // if all elements that will form a single Dst vector aren't demanded, // then we won't need to do that shuffle, so adjust the cost accordingly. APInt DemandedDstVectors = APIntOps::ScaleBitMask( DemandedDstElts.zext(NumDstVectors * NumEltsPerDstVec), NumDstVectors); unsigned NumDstVectorsDemanded = DemandedDstVectors.popcount(); InstructionCost SingleShuffleCost = getShuffleCost( TTI::SK_PermuteSingleSrc, SingleDstVecTy, /*Mask=*/std::nullopt, CostKind, /*Index=*/0, /*SubTp=*/nullptr); return NumDstVectorsDemanded * SingleShuffleCost; } InstructionCost X86TTIImpl::getMemoryOpCost(unsigned Opcode, Type *Src, MaybeAlign Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, TTI::OperandValueInfo OpInfo, const Instruction *I) { // TODO: Handle other cost kinds. if (CostKind != TTI::TCK_RecipThroughput) { if (auto *SI = dyn_cast_or_null(I)) { // Store instruction with index and scale costs 2 Uops. // Check the preceding GEP to identify non-const indices. if (auto *GEP = dyn_cast(SI->getPointerOperand())) { if (!all_of(GEP->indices(), [](Value *V) { return isa(V); })) return TTI::TCC_Basic * 2; } } return TTI::TCC_Basic; } assert((Opcode == Instruction::Load || Opcode == Instruction::Store) && "Invalid Opcode"); // Type legalization can't handle structs if (TLI->getValueType(DL, Src, true) == MVT::Other) return BaseT::getMemoryOpCost(Opcode, Src, Alignment, AddressSpace, CostKind); // Legalize the type. std::pair LT = getTypeLegalizationCost(Src); auto *VTy = dyn_cast(Src); InstructionCost Cost = 0; // Add a cost for constant load to vector. if (Opcode == Instruction::Store && OpInfo.isConstant()) Cost += getMemoryOpCost(Instruction::Load, Src, DL.getABITypeAlign(Src), /*AddressSpace=*/0, CostKind); // Handle the simple case of non-vectors. // NOTE: this assumes that legalization never creates vector from scalars! if (!VTy || !LT.second.isVector()) { // Each load/store unit costs 1. return (LT.second.isFloatingPoint() ? Cost : 0) + LT.first * 1; } bool IsLoad = Opcode == Instruction::Load; Type *EltTy = VTy->getElementType(); const int EltTyBits = DL.getTypeSizeInBits(EltTy); // Source of truth: how many elements were there in the original IR vector? const unsigned SrcNumElt = VTy->getNumElements(); // How far have we gotten? int NumEltRemaining = SrcNumElt; // Note that we intentionally capture by-reference, NumEltRemaining changes. auto NumEltDone = [&]() { return SrcNumElt - NumEltRemaining; }; const int MaxLegalOpSizeBytes = divideCeil(LT.second.getSizeInBits(), 8); // Note that even if we can store 64 bits of an XMM, we still operate on XMM. const unsigned XMMBits = 128; if (XMMBits % EltTyBits != 0) // Vector size must be a multiple of the element size. I.e. no padding. return BaseT::getMemoryOpCost(Opcode, Src, Alignment, AddressSpace, CostKind); const int NumEltPerXMM = XMMBits / EltTyBits; auto *XMMVecTy = FixedVectorType::get(EltTy, NumEltPerXMM); for (int CurrOpSizeBytes = MaxLegalOpSizeBytes, SubVecEltsLeft = 0; NumEltRemaining > 0; CurrOpSizeBytes /= 2) { // How many elements would a single op deal with at once? if ((8 * CurrOpSizeBytes) % EltTyBits != 0) // Vector size must be a multiple of the element size. I.e. no padding. return BaseT::getMemoryOpCost(Opcode, Src, Alignment, AddressSpace, CostKind); int CurrNumEltPerOp = (8 * CurrOpSizeBytes) / EltTyBits; assert(CurrOpSizeBytes > 0 && CurrNumEltPerOp > 0 && "How'd we get here?"); assert((((NumEltRemaining * EltTyBits) < (2 * 8 * CurrOpSizeBytes)) || (CurrOpSizeBytes == MaxLegalOpSizeBytes)) && "Unless we haven't halved the op size yet, " "we have less than two op's sized units of work left."); auto *CurrVecTy = CurrNumEltPerOp > NumEltPerXMM ? FixedVectorType::get(EltTy, CurrNumEltPerOp) : XMMVecTy; assert(CurrVecTy->getNumElements() % CurrNumEltPerOp == 0 && "After halving sizes, the vector elt count is no longer a multiple " "of number of elements per operation?"); auto *CoalescedVecTy = CurrNumEltPerOp == 1 ? CurrVecTy : FixedVectorType::get( IntegerType::get(Src->getContext(), EltTyBits * CurrNumEltPerOp), CurrVecTy->getNumElements() / CurrNumEltPerOp); assert(DL.getTypeSizeInBits(CoalescedVecTy) == DL.getTypeSizeInBits(CurrVecTy) && "coalesciing elements doesn't change vector width."); while (NumEltRemaining > 0) { assert(SubVecEltsLeft >= 0 && "Subreg element count overconsumtion?"); // Can we use this vector size, as per the remaining element count? // Iff the vector is naturally aligned, we can do a wide load regardless. if (NumEltRemaining < CurrNumEltPerOp && (!IsLoad || Alignment.valueOrOne() < CurrOpSizeBytes) && CurrOpSizeBytes != 1) break; // Try smalled vector size. bool Is0thSubVec = (NumEltDone() % LT.second.getVectorNumElements()) == 0; // If we have fully processed the previous reg, we need to replenish it. if (SubVecEltsLeft == 0) { SubVecEltsLeft += CurrVecTy->getNumElements(); // And that's free only for the 0'th subvector of a legalized vector. if (!Is0thSubVec) Cost += getShuffleCost(IsLoad ? TTI::ShuffleKind::SK_InsertSubvector : TTI::ShuffleKind::SK_ExtractSubvector, VTy, std::nullopt, CostKind, NumEltDone(), CurrVecTy); } // While we can directly load/store ZMM, YMM, and 64-bit halves of XMM, // for smaller widths (32/16/8) we have to insert/extract them separately. // Again, it's free for the 0'th subreg (if op is 32/64 bit wide, // but let's pretend that it is also true for 16/8 bit wide ops...) if (CurrOpSizeBytes <= 32 / 8 && !Is0thSubVec) { int NumEltDoneInCurrXMM = NumEltDone() % NumEltPerXMM; assert(NumEltDoneInCurrXMM % CurrNumEltPerOp == 0 && ""); int CoalescedVecEltIdx = NumEltDoneInCurrXMM / CurrNumEltPerOp; APInt DemandedElts = APInt::getBitsSet(CoalescedVecTy->getNumElements(), CoalescedVecEltIdx, CoalescedVecEltIdx + 1); assert(DemandedElts.popcount() == 1 && "Inserting single value"); Cost += getScalarizationOverhead(CoalescedVecTy, DemandedElts, IsLoad, !IsLoad, CostKind); } // This isn't exactly right. We're using slow unaligned 32-byte accesses // as a proxy for a double-pumped AVX memory interface such as on // Sandybridge. // Sub-32-bit loads/stores will be slower either with PINSR*/PEXTR* or // will be scalarized. if (CurrOpSizeBytes == 32 && ST->isUnalignedMem32Slow()) Cost += 2; else if (CurrOpSizeBytes < 4) Cost += 2; else Cost += 1; SubVecEltsLeft -= CurrNumEltPerOp; NumEltRemaining -= CurrNumEltPerOp; Alignment = commonAlignment(Alignment.valueOrOne(), CurrOpSizeBytes); } } assert(NumEltRemaining <= 0 && "Should have processed all the elements."); return Cost; } InstructionCost X86TTIImpl::getMaskedMemoryOpCost(unsigned Opcode, Type *SrcTy, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind) { bool IsLoad = (Instruction::Load == Opcode); bool IsStore = (Instruction::Store == Opcode); auto *SrcVTy = dyn_cast(SrcTy); if (!SrcVTy) // To calculate scalar take the regular cost, without mask return getMemoryOpCost(Opcode, SrcTy, Alignment, AddressSpace, CostKind); unsigned NumElem = SrcVTy->getNumElements(); auto *MaskTy = FixedVectorType::get(Type::getInt8Ty(SrcVTy->getContext()), NumElem); if ((IsLoad && !isLegalMaskedLoad(SrcVTy, Alignment)) || (IsStore && !isLegalMaskedStore(SrcVTy, Alignment))) { // Scalarization APInt DemandedElts = APInt::getAllOnes(NumElem); InstructionCost MaskSplitCost = getScalarizationOverhead( MaskTy, DemandedElts, /*Insert*/ false, /*Extract*/ true, CostKind); InstructionCost ScalarCompareCost = getCmpSelInstrCost( Instruction::ICmp, Type::getInt8Ty(SrcVTy->getContext()), nullptr, CmpInst::BAD_ICMP_PREDICATE, CostKind); InstructionCost BranchCost = getCFInstrCost(Instruction::Br, CostKind); InstructionCost MaskCmpCost = NumElem * (BranchCost + ScalarCompareCost); InstructionCost ValueSplitCost = getScalarizationOverhead( SrcVTy, DemandedElts, IsLoad, IsStore, CostKind); InstructionCost MemopCost = NumElem * BaseT::getMemoryOpCost(Opcode, SrcVTy->getScalarType(), Alignment, AddressSpace, CostKind); return MemopCost + ValueSplitCost + MaskSplitCost + MaskCmpCost; } // Legalize the type. std::pair LT = getTypeLegalizationCost(SrcVTy); auto VT = TLI->getValueType(DL, SrcVTy); InstructionCost Cost = 0; if (VT.isSimple() && LT.second != VT.getSimpleVT() && LT.second.getVectorNumElements() == NumElem) // Promotion requires extend/truncate for data and a shuffle for mask. Cost += getShuffleCost(TTI::SK_PermuteTwoSrc, SrcVTy, std::nullopt, CostKind, 0, nullptr) + getShuffleCost(TTI::SK_PermuteTwoSrc, MaskTy, std::nullopt, CostKind, 0, nullptr); else if (LT.first * LT.second.getVectorNumElements() > NumElem) { auto *NewMaskTy = FixedVectorType::get(MaskTy->getElementType(), LT.second.getVectorNumElements()); // Expanding requires fill mask with zeroes Cost += getShuffleCost(TTI::SK_InsertSubvector, NewMaskTy, std::nullopt, CostKind, 0, MaskTy); } // Pre-AVX512 - each maskmov load costs 2 + store costs ~8. if (!ST->hasAVX512()) return Cost + LT.first * (IsLoad ? 2 : 8); // AVX-512 masked load/store is cheaper return Cost + LT.first; } InstructionCost X86TTIImpl::getPointersChainCost(ArrayRef Ptrs, const Value *Base, const TTI::PointersChainInfo &Info, Type *AccessTy, TTI::TargetCostKind CostKind) { if (Info.isSameBase() && Info.isKnownStride()) { // If all the pointers have known stride all the differences are translated // into constants. X86 memory addressing allows encoding it into // displacement. So we just need to take the base GEP cost. if (const auto *BaseGEP = dyn_cast(Base)) { SmallVector Indices(BaseGEP->indices()); return getGEPCost(BaseGEP->getSourceElementType(), BaseGEP->getPointerOperand(), Indices, nullptr, CostKind); } return TTI::TCC_Free; } return BaseT::getPointersChainCost(Ptrs, Base, Info, AccessTy, CostKind); } InstructionCost X86TTIImpl::getAddressComputationCost(Type *Ty, ScalarEvolution *SE, const SCEV *Ptr) { // Address computations in vectorized code with non-consecutive addresses will // likely result in more instructions compared to scalar code where the // computation can more often be merged into the index mode. The resulting // extra micro-ops can significantly decrease throughput. const unsigned NumVectorInstToHideOverhead = 10; // Cost modeling of Strided Access Computation is hidden by the indexing // modes of X86 regardless of the stride value. We dont believe that there // is a difference between constant strided access in gerenal and constant // strided value which is less than or equal to 64. // Even in the case of (loop invariant) stride whose value is not known at // compile time, the address computation will not incur more than one extra // ADD instruction. if (Ty->isVectorTy() && SE && !ST->hasAVX2()) { // TODO: AVX2 is the current cut-off because we don't have correct // interleaving costs for prior ISA's. if (!BaseT::isStridedAccess(Ptr)) return NumVectorInstToHideOverhead; if (!BaseT::getConstantStrideStep(SE, Ptr)) return 1; } return BaseT::getAddressComputationCost(Ty, SE, Ptr); } InstructionCost X86TTIImpl::getArithmeticReductionCost(unsigned Opcode, VectorType *ValTy, std::optional FMF, TTI::TargetCostKind CostKind) { if (TTI::requiresOrderedReduction(FMF)) return BaseT::getArithmeticReductionCost(Opcode, ValTy, FMF, CostKind); // We use the Intel Architecture Code Analyzer(IACA) to measure the throughput // and make it as the cost. static const CostTblEntry SLMCostTbl[] = { { ISD::FADD, MVT::v2f64, 3 }, { ISD::ADD, MVT::v2i64, 5 }, }; static const CostTblEntry SSE2CostTbl[] = { { ISD::FADD, MVT::v2f64, 2 }, { ISD::FADD, MVT::v2f32, 2 }, { ISD::FADD, MVT::v4f32, 4 }, { ISD::ADD, MVT::v2i64, 2 }, // The data reported by the IACA tool is "1.6". { ISD::ADD, MVT::v2i32, 2 }, // FIXME: chosen to be less than v4i32 { ISD::ADD, MVT::v4i32, 3 }, // The data reported by the IACA tool is "3.3". { ISD::ADD, MVT::v2i16, 2 }, // The data reported by the IACA tool is "4.3". { ISD::ADD, MVT::v4i16, 3 }, // The data reported by the IACA tool is "4.3". { ISD::ADD, MVT::v8i16, 4 }, // The data reported by the IACA tool is "4.3". { ISD::ADD, MVT::v2i8, 2 }, { ISD::ADD, MVT::v4i8, 2 }, { ISD::ADD, MVT::v8i8, 2 }, { ISD::ADD, MVT::v16i8, 3 }, }; static const CostTblEntry AVX1CostTbl[] = { { ISD::FADD, MVT::v4f64, 3 }, { ISD::FADD, MVT::v4f32, 3 }, { ISD::FADD, MVT::v8f32, 4 }, { ISD::ADD, MVT::v2i64, 1 }, // The data reported by the IACA tool is "1.5". { ISD::ADD, MVT::v4i64, 3 }, { ISD::ADD, MVT::v8i32, 5 }, { ISD::ADD, MVT::v16i16, 5 }, { ISD::ADD, MVT::v32i8, 4 }, }; int ISD = TLI->InstructionOpcodeToISD(Opcode); assert(ISD && "Invalid opcode"); // Before legalizing the type, give a chance to look up illegal narrow types // in the table. // FIXME: Is there a better way to do this? EVT VT = TLI->getValueType(DL, ValTy); if (VT.isSimple()) { MVT MTy = VT.getSimpleVT(); if (ST->useSLMArithCosts()) if (const auto *Entry = CostTableLookup(SLMCostTbl, ISD, MTy)) return Entry->Cost; if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1CostTbl, ISD, MTy)) return Entry->Cost; if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2CostTbl, ISD, MTy)) return Entry->Cost; } std::pair LT = getTypeLegalizationCost(ValTy); MVT MTy = LT.second; auto *ValVTy = cast(ValTy); // Special case: vXi8 mul reductions are performed as vXi16. if (ISD == ISD::MUL && MTy.getScalarType() == MVT::i8) { auto *WideSclTy = IntegerType::get(ValVTy->getContext(), 16); auto *WideVecTy = FixedVectorType::get(WideSclTy, ValVTy->getNumElements()); return getCastInstrCost(Instruction::ZExt, WideVecTy, ValTy, TargetTransformInfo::CastContextHint::None, CostKind) + getArithmeticReductionCost(Opcode, WideVecTy, FMF, CostKind); } InstructionCost ArithmeticCost = 0; if (LT.first != 1 && MTy.isVector() && MTy.getVectorNumElements() < ValVTy->getNumElements()) { // Type needs to be split. We need LT.first - 1 arithmetic ops. auto *SingleOpTy = FixedVectorType::get(ValVTy->getElementType(), MTy.getVectorNumElements()); ArithmeticCost = getArithmeticInstrCost(Opcode, SingleOpTy, CostKind); ArithmeticCost *= LT.first - 1; } if (ST->useSLMArithCosts()) if (const auto *Entry = CostTableLookup(SLMCostTbl, ISD, MTy)) return ArithmeticCost + Entry->Cost; if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1CostTbl, ISD, MTy)) return ArithmeticCost + Entry->Cost; if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2CostTbl, ISD, MTy)) return ArithmeticCost + Entry->Cost; // FIXME: These assume a naive kshift+binop lowering, which is probably // conservative in most cases. static const CostTblEntry AVX512BoolReduction[] = { { ISD::AND, MVT::v2i1, 3 }, { ISD::AND, MVT::v4i1, 5 }, { ISD::AND, MVT::v8i1, 7 }, { ISD::AND, MVT::v16i1, 9 }, { ISD::AND, MVT::v32i1, 11 }, { ISD::AND, MVT::v64i1, 13 }, { ISD::OR, MVT::v2i1, 3 }, { ISD::OR, MVT::v4i1, 5 }, { ISD::OR, MVT::v8i1, 7 }, { ISD::OR, MVT::v16i1, 9 }, { ISD::OR, MVT::v32i1, 11 }, { ISD::OR, MVT::v64i1, 13 }, }; static const CostTblEntry AVX2BoolReduction[] = { { ISD::AND, MVT::v16i16, 2 }, // vpmovmskb + cmp { ISD::AND, MVT::v32i8, 2 }, // vpmovmskb + cmp { ISD::OR, MVT::v16i16, 2 }, // vpmovmskb + cmp { ISD::OR, MVT::v32i8, 2 }, // vpmovmskb + cmp }; static const CostTblEntry AVX1BoolReduction[] = { { ISD::AND, MVT::v4i64, 2 }, // vmovmskpd + cmp { ISD::AND, MVT::v8i32, 2 }, // vmovmskps + cmp { ISD::AND, MVT::v16i16, 4 }, // vextractf128 + vpand + vpmovmskb + cmp { ISD::AND, MVT::v32i8, 4 }, // vextractf128 + vpand + vpmovmskb + cmp { ISD::OR, MVT::v4i64, 2 }, // vmovmskpd + cmp { ISD::OR, MVT::v8i32, 2 }, // vmovmskps + cmp { ISD::OR, MVT::v16i16, 4 }, // vextractf128 + vpor + vpmovmskb + cmp { ISD::OR, MVT::v32i8, 4 }, // vextractf128 + vpor + vpmovmskb + cmp }; static const CostTblEntry SSE2BoolReduction[] = { { ISD::AND, MVT::v2i64, 2 }, // movmskpd + cmp { ISD::AND, MVT::v4i32, 2 }, // movmskps + cmp { ISD::AND, MVT::v8i16, 2 }, // pmovmskb + cmp { ISD::AND, MVT::v16i8, 2 }, // pmovmskb + cmp { ISD::OR, MVT::v2i64, 2 }, // movmskpd + cmp { ISD::OR, MVT::v4i32, 2 }, // movmskps + cmp { ISD::OR, MVT::v8i16, 2 }, // pmovmskb + cmp { ISD::OR, MVT::v16i8, 2 }, // pmovmskb + cmp }; // Handle bool allof/anyof patterns. if (ValVTy->getElementType()->isIntegerTy(1)) { InstructionCost ArithmeticCost = 0; if (LT.first != 1 && MTy.isVector() && MTy.getVectorNumElements() < ValVTy->getNumElements()) { // Type needs to be split. We need LT.first - 1 arithmetic ops. auto *SingleOpTy = FixedVectorType::get(ValVTy->getElementType(), MTy.getVectorNumElements()); ArithmeticCost = getArithmeticInstrCost(Opcode, SingleOpTy, CostKind); ArithmeticCost *= LT.first - 1; } if (ST->hasAVX512()) if (const auto *Entry = CostTableLookup(AVX512BoolReduction, ISD, MTy)) return ArithmeticCost + Entry->Cost; if (ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2BoolReduction, ISD, MTy)) return ArithmeticCost + Entry->Cost; if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1BoolReduction, ISD, MTy)) return ArithmeticCost + Entry->Cost; if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2BoolReduction, ISD, MTy)) return ArithmeticCost + Entry->Cost; return BaseT::getArithmeticReductionCost(Opcode, ValVTy, FMF, CostKind); } unsigned NumVecElts = ValVTy->getNumElements(); unsigned ScalarSize = ValVTy->getScalarSizeInBits(); // Special case power of 2 reductions where the scalar type isn't changed // by type legalization. if (!isPowerOf2_32(NumVecElts) || ScalarSize != MTy.getScalarSizeInBits()) return BaseT::getArithmeticReductionCost(Opcode, ValVTy, FMF, CostKind); InstructionCost ReductionCost = 0; auto *Ty = ValVTy; if (LT.first != 1 && MTy.isVector() && MTy.getVectorNumElements() < ValVTy->getNumElements()) { // Type needs to be split. We need LT.first - 1 arithmetic ops. Ty = FixedVectorType::get(ValVTy->getElementType(), MTy.getVectorNumElements()); ReductionCost = getArithmeticInstrCost(Opcode, Ty, CostKind); ReductionCost *= LT.first - 1; NumVecElts = MTy.getVectorNumElements(); } // Now handle reduction with the legal type, taking into account size changes // at each level. while (NumVecElts > 1) { // Determine the size of the remaining vector we need to reduce. unsigned Size = NumVecElts * ScalarSize; NumVecElts /= 2; // If we're reducing from 256/512 bits, use an extract_subvector. if (Size > 128) { auto *SubTy = FixedVectorType::get(ValVTy->getElementType(), NumVecElts); ReductionCost += getShuffleCost(TTI::SK_ExtractSubvector, Ty, std::nullopt, CostKind, NumVecElts, SubTy); Ty = SubTy; } else if (Size == 128) { // Reducing from 128 bits is a permute of v2f64/v2i64. FixedVectorType *ShufTy; if (ValVTy->isFloatingPointTy()) ShufTy = FixedVectorType::get(Type::getDoubleTy(ValVTy->getContext()), 2); else ShufTy = FixedVectorType::get(Type::getInt64Ty(ValVTy->getContext()), 2); ReductionCost += getShuffleCost(TTI::SK_PermuteSingleSrc, ShufTy, std::nullopt, CostKind, 0, nullptr); } else if (Size == 64) { // Reducing from 64 bits is a shuffle of v4f32/v4i32. FixedVectorType *ShufTy; if (ValVTy->isFloatingPointTy()) ShufTy = FixedVectorType::get(Type::getFloatTy(ValVTy->getContext()), 4); else ShufTy = FixedVectorType::get(Type::getInt32Ty(ValVTy->getContext()), 4); ReductionCost += getShuffleCost(TTI::SK_PermuteSingleSrc, ShufTy, std::nullopt, CostKind, 0, nullptr); } else { // Reducing from smaller size is a shift by immediate. auto *ShiftTy = FixedVectorType::get( Type::getIntNTy(ValVTy->getContext(), Size), 128 / Size); ReductionCost += getArithmeticInstrCost( Instruction::LShr, ShiftTy, CostKind, {TargetTransformInfo::OK_AnyValue, TargetTransformInfo::OP_None}, {TargetTransformInfo::OK_UniformConstantValue, TargetTransformInfo::OP_None}); } // Add the arithmetic op for this level. ReductionCost += getArithmeticInstrCost(Opcode, Ty, CostKind); } // Add the final extract element to the cost. return ReductionCost + getVectorInstrCost(Instruction::ExtractElement, Ty, CostKind, 0, nullptr, nullptr); } InstructionCost X86TTIImpl::getMinMaxCost(Intrinsic::ID IID, Type *Ty, TTI::TargetCostKind CostKind, FastMathFlags FMF) { IntrinsicCostAttributes ICA(IID, Ty, {Ty, Ty}, FMF); return getIntrinsicInstrCost(ICA, CostKind); } InstructionCost X86TTIImpl::getMinMaxReductionCost(Intrinsic::ID IID, VectorType *ValTy, FastMathFlags FMF, TTI::TargetCostKind CostKind) { std::pair LT = getTypeLegalizationCost(ValTy); MVT MTy = LT.second; int ISD; if (ValTy->isIntOrIntVectorTy()) { ISD = (IID == Intrinsic::umin || IID == Intrinsic::umax) ? ISD::UMIN : ISD::SMIN; } else { assert(ValTy->isFPOrFPVectorTy() && "Expected float point or integer vector type."); ISD = (IID == Intrinsic::minnum || IID == Intrinsic::maxnum) ? ISD::FMINNUM : ISD::FMINIMUM; } // We use the Intel Architecture Code Analyzer(IACA) to measure the throughput // and make it as the cost. static const CostTblEntry SSE2CostTbl[] = { {ISD::UMIN, MVT::v2i16, 5}, // need pxors to use pminsw/pmaxsw {ISD::UMIN, MVT::v4i16, 7}, // need pxors to use pminsw/pmaxsw {ISD::UMIN, MVT::v8i16, 9}, // need pxors to use pminsw/pmaxsw }; static const CostTblEntry SSE41CostTbl[] = { {ISD::SMIN, MVT::v2i16, 3}, // same as sse2 {ISD::SMIN, MVT::v4i16, 5}, // same as sse2 {ISD::UMIN, MVT::v2i16, 5}, // same as sse2 {ISD::UMIN, MVT::v4i16, 7}, // same as sse2 {ISD::SMIN, MVT::v8i16, 4}, // phminposuw+xor {ISD::UMIN, MVT::v8i16, 4}, // FIXME: umin is cheaper than umax {ISD::SMIN, MVT::v2i8, 3}, // pminsb {ISD::SMIN, MVT::v4i8, 5}, // pminsb {ISD::SMIN, MVT::v8i8, 7}, // pminsb {ISD::SMIN, MVT::v16i8, 6}, {ISD::UMIN, MVT::v2i8, 3}, // same as sse2 {ISD::UMIN, MVT::v4i8, 5}, // same as sse2 {ISD::UMIN, MVT::v8i8, 7}, // same as sse2 {ISD::UMIN, MVT::v16i8, 6}, // FIXME: umin is cheaper than umax }; static const CostTblEntry AVX1CostTbl[] = { {ISD::SMIN, MVT::v16i16, 6}, {ISD::UMIN, MVT::v16i16, 6}, // FIXME: umin is cheaper than umax {ISD::SMIN, MVT::v32i8, 8}, {ISD::UMIN, MVT::v32i8, 8}, }; static const CostTblEntry AVX512BWCostTbl[] = { {ISD::SMIN, MVT::v32i16, 8}, {ISD::UMIN, MVT::v32i16, 8}, // FIXME: umin is cheaper than umax {ISD::SMIN, MVT::v64i8, 10}, {ISD::UMIN, MVT::v64i8, 10}, }; // Before legalizing the type, give a chance to look up illegal narrow types // in the table. // FIXME: Is there a better way to do this? EVT VT = TLI->getValueType(DL, ValTy); if (VT.isSimple()) { MVT MTy = VT.getSimpleVT(); if (ST->hasBWI()) if (const auto *Entry = CostTableLookup(AVX512BWCostTbl, ISD, MTy)) return Entry->Cost; if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1CostTbl, ISD, MTy)) return Entry->Cost; if (ST->hasSSE41()) if (const auto *Entry = CostTableLookup(SSE41CostTbl, ISD, MTy)) return Entry->Cost; if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2CostTbl, ISD, MTy)) return Entry->Cost; } auto *ValVTy = cast(ValTy); unsigned NumVecElts = ValVTy->getNumElements(); auto *Ty = ValVTy; InstructionCost MinMaxCost = 0; if (LT.first != 1 && MTy.isVector() && MTy.getVectorNumElements() < ValVTy->getNumElements()) { // Type needs to be split. We need LT.first - 1 operations ops. Ty = FixedVectorType::get(ValVTy->getElementType(), MTy.getVectorNumElements()); MinMaxCost = getMinMaxCost(IID, Ty, CostKind, FMF); MinMaxCost *= LT.first - 1; NumVecElts = MTy.getVectorNumElements(); } if (ST->hasBWI()) if (const auto *Entry = CostTableLookup(AVX512BWCostTbl, ISD, MTy)) return MinMaxCost + Entry->Cost; if (ST->hasAVX()) if (const auto *Entry = CostTableLookup(AVX1CostTbl, ISD, MTy)) return MinMaxCost + Entry->Cost; if (ST->hasSSE41()) if (const auto *Entry = CostTableLookup(SSE41CostTbl, ISD, MTy)) return MinMaxCost + Entry->Cost; if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2CostTbl, ISD, MTy)) return MinMaxCost + Entry->Cost; unsigned ScalarSize = ValTy->getScalarSizeInBits(); // Special case power of 2 reductions where the scalar type isn't changed // by type legalization. if (!isPowerOf2_32(ValVTy->getNumElements()) || ScalarSize != MTy.getScalarSizeInBits()) return BaseT::getMinMaxReductionCost(IID, ValTy, FMF, CostKind); // Now handle reduction with the legal type, taking into account size changes // at each level. while (NumVecElts > 1) { // Determine the size of the remaining vector we need to reduce. unsigned Size = NumVecElts * ScalarSize; NumVecElts /= 2; // If we're reducing from 256/512 bits, use an extract_subvector. if (Size > 128) { auto *SubTy = FixedVectorType::get(ValVTy->getElementType(), NumVecElts); MinMaxCost += getShuffleCost(TTI::SK_ExtractSubvector, Ty, std::nullopt, CostKind, NumVecElts, SubTy); Ty = SubTy; } else if (Size == 128) { // Reducing from 128 bits is a permute of v2f64/v2i64. VectorType *ShufTy; if (ValTy->isFloatingPointTy()) ShufTy = FixedVectorType::get(Type::getDoubleTy(ValTy->getContext()), 2); else ShufTy = FixedVectorType::get(Type::getInt64Ty(ValTy->getContext()), 2); MinMaxCost += getShuffleCost(TTI::SK_PermuteSingleSrc, ShufTy, std::nullopt, CostKind, 0, nullptr); } else if (Size == 64) { // Reducing from 64 bits is a shuffle of v4f32/v4i32. FixedVectorType *ShufTy; if (ValTy->isFloatingPointTy()) ShufTy = FixedVectorType::get(Type::getFloatTy(ValTy->getContext()), 4); else ShufTy = FixedVectorType::get(Type::getInt32Ty(ValTy->getContext()), 4); MinMaxCost += getShuffleCost(TTI::SK_PermuteSingleSrc, ShufTy, std::nullopt, CostKind, 0, nullptr); } else { // Reducing from smaller size is a shift by immediate. auto *ShiftTy = FixedVectorType::get( Type::getIntNTy(ValTy->getContext(), Size), 128 / Size); MinMaxCost += getArithmeticInstrCost( Instruction::LShr, ShiftTy, TTI::TCK_RecipThroughput, {TargetTransformInfo::OK_AnyValue, TargetTransformInfo::OP_None}, {TargetTransformInfo::OK_UniformConstantValue, TargetTransformInfo::OP_None}); } // Add the arithmetic op for this level. MinMaxCost += getMinMaxCost(IID, Ty, CostKind, FMF); } // Add the final extract element to the cost. return MinMaxCost + getVectorInstrCost(Instruction::ExtractElement, Ty, CostKind, 0, nullptr, nullptr); } /// Calculate the cost of materializing a 64-bit value. This helper /// method might only calculate a fraction of a larger immediate. Therefore it /// is valid to return a cost of ZERO. InstructionCost X86TTIImpl::getIntImmCost(int64_t Val) { if (Val == 0) return TTI::TCC_Free; if (isInt<32>(Val)) return TTI::TCC_Basic; return 2 * TTI::TCC_Basic; } InstructionCost X86TTIImpl::getIntImmCost(const APInt &Imm, Type *Ty, TTI::TargetCostKind CostKind) { assert(Ty->isIntegerTy()); unsigned BitSize = Ty->getPrimitiveSizeInBits(); if (BitSize == 0) return ~0U; // Never hoist constants larger than 128bit, because this might lead to // incorrect code generation or assertions in codegen. // Fixme: Create a cost model for types larger than i128 once the codegen // issues have been fixed. if (BitSize > 128) return TTI::TCC_Free; if (Imm == 0) return TTI::TCC_Free; // Sign-extend all constants to a multiple of 64-bit. APInt ImmVal = Imm; if (BitSize % 64 != 0) ImmVal = Imm.sext(alignTo(BitSize, 64)); // Split the constant into 64-bit chunks and calculate the cost for each // chunk. InstructionCost Cost = 0; for (unsigned ShiftVal = 0; ShiftVal < BitSize; ShiftVal += 64) { APInt Tmp = ImmVal.ashr(ShiftVal).sextOrTrunc(64); int64_t Val = Tmp.getSExtValue(); Cost += getIntImmCost(Val); } // We need at least one instruction to materialize the constant. return std::max(1, Cost); } InstructionCost X86TTIImpl::getIntImmCostInst(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty, TTI::TargetCostKind CostKind, Instruction *Inst) { assert(Ty->isIntegerTy()); unsigned BitSize = Ty->getPrimitiveSizeInBits(); // There is no cost model for constants with a bit size of 0. Return TCC_Free // here, so that constant hoisting will ignore this constant. if (BitSize == 0) return TTI::TCC_Free; unsigned ImmIdx = ~0U; switch (Opcode) { default: return TTI::TCC_Free; case Instruction::GetElementPtr: // Always hoist the base address of a GetElementPtr. This prevents the // creation of new constants for every base constant that gets constant // folded with the offset. if (Idx == 0) return 2 * TTI::TCC_Basic; return TTI::TCC_Free; case Instruction::Store: ImmIdx = 0; break; case Instruction::ICmp: // This is an imperfect hack to prevent constant hoisting of // compares that might be trying to check if a 64-bit value fits in // 32-bits. The backend can optimize these cases using a right shift by 32. // Ideally we would check the compare predicate here. There also other // similar immediates the backend can use shifts for. if (Idx == 1 && Imm.getBitWidth() == 64) { uint64_t ImmVal = Imm.getZExtValue(); if (ImmVal == 0x100000000ULL || ImmVal == 0xffffffff) return TTI::TCC_Free; } ImmIdx = 1; break; case Instruction::And: // We support 64-bit ANDs with immediates with 32-bits of leading zeroes // by using a 32-bit operation with implicit zero extension. Detect such // immediates here as the normal path expects bit 31 to be sign extended. if (Idx == 1 && Imm.getBitWidth() == 64 && Imm.isIntN(32)) return TTI::TCC_Free; ImmIdx = 1; break; case Instruction::Add: case Instruction::Sub: // For add/sub, we can use the opposite instruction for INT32_MIN. if (Idx == 1 && Imm.getBitWidth() == 64 && Imm.getZExtValue() == 0x80000000) return TTI::TCC_Free; ImmIdx = 1; break; case Instruction::UDiv: case Instruction::SDiv: case Instruction::URem: case Instruction::SRem: // Division by constant is typically expanded later into a different // instruction sequence. This completely changes the constants. // Report them as "free" to stop ConstantHoist from marking them as opaque. return TTI::TCC_Free; case Instruction::Mul: case Instruction::Or: case Instruction::Xor: ImmIdx = 1; break; // Always return TCC_Free for the shift value of a shift instruction. case Instruction::Shl: case Instruction::LShr: case Instruction::AShr: if (Idx == 1) return TTI::TCC_Free; break; case Instruction::Trunc: case Instruction::ZExt: case Instruction::SExt: case Instruction::IntToPtr: case Instruction::PtrToInt: case Instruction::BitCast: case Instruction::PHI: case Instruction::Call: case Instruction::Select: case Instruction::Ret: case Instruction::Load: break; } if (Idx == ImmIdx) { uint64_t NumConstants = divideCeil(BitSize, 64); InstructionCost Cost = X86TTIImpl::getIntImmCost(Imm, Ty, CostKind); return (Cost <= NumConstants * TTI::TCC_Basic) ? static_cast(TTI::TCC_Free) : Cost; } return X86TTIImpl::getIntImmCost(Imm, Ty, CostKind); } InstructionCost X86TTIImpl::getIntImmCostIntrin(Intrinsic::ID IID, unsigned Idx, const APInt &Imm, Type *Ty, TTI::TargetCostKind CostKind) { assert(Ty->isIntegerTy()); unsigned BitSize = Ty->getPrimitiveSizeInBits(); // There is no cost model for constants with a bit size of 0. Return TCC_Free // here, so that constant hoisting will ignore this constant. if (BitSize == 0) return TTI::TCC_Free; switch (IID) { default: return TTI::TCC_Free; case Intrinsic::sadd_with_overflow: case Intrinsic::uadd_with_overflow: case Intrinsic::ssub_with_overflow: case Intrinsic::usub_with_overflow: case Intrinsic::smul_with_overflow: case Intrinsic::umul_with_overflow: if ((Idx == 1) && Imm.getBitWidth() <= 64 && Imm.isSignedIntN(32)) return TTI::TCC_Free; break; case Intrinsic::experimental_stackmap: if ((Idx < 2) || (Imm.getBitWidth() <= 64 && Imm.isSignedIntN(64))) return TTI::TCC_Free; break; case Intrinsic::experimental_patchpoint_void: case Intrinsic::experimental_patchpoint_i64: if ((Idx < 4) || (Imm.getBitWidth() <= 64 && Imm.isSignedIntN(64))) return TTI::TCC_Free; break; } return X86TTIImpl::getIntImmCost(Imm, Ty, CostKind); } InstructionCost X86TTIImpl::getCFInstrCost(unsigned Opcode, TTI::TargetCostKind CostKind, const Instruction *I) { if (CostKind != TTI::TCK_RecipThroughput) return Opcode == Instruction::PHI ? 0 : 1; // Branches are assumed to be predicted. return 0; } int X86TTIImpl::getGatherOverhead() const { // Some CPUs have more overhead for gather. The specified overhead is relative // to the Load operation. "2" is the number provided by Intel architects. This // parameter is used for cost estimation of Gather Op and comparison with // other alternatives. // TODO: Remove the explicit hasAVX512()?, That would mean we would only // enable gather with a -march. if (ST->hasAVX512() || (ST->hasAVX2() && ST->hasFastGather())) return 2; return 1024; } int X86TTIImpl::getScatterOverhead() const { if (ST->hasAVX512()) return 2; return 1024; } // Return an average cost of Gather / Scatter instruction, maybe improved later. // FIXME: Add TargetCostKind support. InstructionCost X86TTIImpl::getGSVectorCost(unsigned Opcode, Type *SrcVTy, const Value *Ptr, Align Alignment, unsigned AddressSpace) { assert(isa(SrcVTy) && "Unexpected type in getGSVectorCost"); unsigned VF = cast(SrcVTy)->getNumElements(); // Try to reduce index size from 64 bit (default for GEP) // to 32. It is essential for VF 16. If the index can't be reduced to 32, the // operation will use 16 x 64 indices which do not fit in a zmm and needs // to split. Also check that the base pointer is the same for all lanes, // and that there's at most one variable index. auto getIndexSizeInBits = [](const Value *Ptr, const DataLayout &DL) { unsigned IndexSize = DL.getPointerSizeInBits(); const GetElementPtrInst *GEP = dyn_cast(Ptr); if (IndexSize < 64 || !GEP) return IndexSize; unsigned NumOfVarIndices = 0; const Value *Ptrs = GEP->getPointerOperand(); if (Ptrs->getType()->isVectorTy() && !getSplatValue(Ptrs)) return IndexSize; for (unsigned I = 1, E = GEP->getNumOperands(); I != E; ++I) { if (isa(GEP->getOperand(I))) continue; Type *IndxTy = GEP->getOperand(I)->getType(); if (auto *IndexVTy = dyn_cast(IndxTy)) IndxTy = IndexVTy->getElementType(); if ((IndxTy->getPrimitiveSizeInBits() == 64 && !isa(GEP->getOperand(I))) || ++NumOfVarIndices > 1) return IndexSize; // 64 } return (unsigned)32; }; // Trying to reduce IndexSize to 32 bits for vector 16. // By default the IndexSize is equal to pointer size. unsigned IndexSize = (ST->hasAVX512() && VF >= 16) ? getIndexSizeInBits(Ptr, DL) : DL.getPointerSizeInBits(); auto *IndexVTy = FixedVectorType::get( IntegerType::get(SrcVTy->getContext(), IndexSize), VF); std::pair IdxsLT = getTypeLegalizationCost(IndexVTy); std::pair SrcLT = getTypeLegalizationCost(SrcVTy); InstructionCost::CostType SplitFactor = *std::max(IdxsLT.first, SrcLT.first).getValue(); if (SplitFactor > 1) { // Handle splitting of vector of pointers auto *SplitSrcTy = FixedVectorType::get(SrcVTy->getScalarType(), VF / SplitFactor); return SplitFactor * getGSVectorCost(Opcode, SplitSrcTy, Ptr, Alignment, AddressSpace); } // The gather / scatter cost is given by Intel architects. It is a rough // number since we are looking at one instruction in a time. const int GSOverhead = (Opcode == Instruction::Load) ? getGatherOverhead() : getScatterOverhead(); return GSOverhead + VF * getMemoryOpCost(Opcode, SrcVTy->getScalarType(), MaybeAlign(Alignment), AddressSpace, TTI::TCK_RecipThroughput); } /// Return the cost of full scalarization of gather / scatter operation. /// /// Opcode - Load or Store instruction. /// SrcVTy - The type of the data vector that should be gathered or scattered. /// VariableMask - The mask is non-constant at compile time. /// Alignment - Alignment for one element. /// AddressSpace - pointer[s] address space. /// /// FIXME: Add TargetCostKind support. InstructionCost X86TTIImpl::getGSScalarCost(unsigned Opcode, Type *SrcVTy, bool VariableMask, Align Alignment, unsigned AddressSpace) { Type *ScalarTy = SrcVTy->getScalarType(); unsigned VF = cast(SrcVTy)->getNumElements(); APInt DemandedElts = APInt::getAllOnes(VF); TTI::TargetCostKind CostKind = TTI::TCK_RecipThroughput; InstructionCost MaskUnpackCost = 0; if (VariableMask) { auto *MaskTy = FixedVectorType::get(Type::getInt1Ty(SrcVTy->getContext()), VF); MaskUnpackCost = getScalarizationOverhead( MaskTy, DemandedElts, /*Insert=*/false, /*Extract=*/true, CostKind); InstructionCost ScalarCompareCost = getCmpSelInstrCost( Instruction::ICmp, Type::getInt1Ty(SrcVTy->getContext()), nullptr, CmpInst::BAD_ICMP_PREDICATE, CostKind); InstructionCost BranchCost = getCFInstrCost(Instruction::Br, CostKind); MaskUnpackCost += VF * (BranchCost + ScalarCompareCost); } InstructionCost AddressUnpackCost = getScalarizationOverhead( FixedVectorType::get(PointerType::getUnqual(ScalarTy->getContext()), VF), DemandedElts, /*Insert=*/false, /*Extract=*/true, CostKind); // The cost of the scalar loads/stores. InstructionCost MemoryOpCost = VF * getMemoryOpCost(Opcode, ScalarTy, MaybeAlign(Alignment), AddressSpace, CostKind); // The cost of forming the vector from loaded scalars/ // scalarizing the vector to perform scalar stores. InstructionCost InsertExtractCost = getScalarizationOverhead( cast(SrcVTy), DemandedElts, /*Insert=*/Opcode == Instruction::Load, /*Extract=*/Opcode == Instruction::Store, CostKind); return AddressUnpackCost + MemoryOpCost + MaskUnpackCost + InsertExtractCost; } /// Calculate the cost of Gather / Scatter operation InstructionCost X86TTIImpl::getGatherScatterOpCost( unsigned Opcode, Type *SrcVTy, const Value *Ptr, bool VariableMask, Align Alignment, TTI::TargetCostKind CostKind, const Instruction *I = nullptr) { if (CostKind != TTI::TCK_RecipThroughput) { if ((Opcode == Instruction::Load && isLegalMaskedGather(SrcVTy, Align(Alignment)) && !forceScalarizeMaskedGather(cast(SrcVTy), Align(Alignment))) || (Opcode == Instruction::Store && isLegalMaskedScatter(SrcVTy, Align(Alignment)) && !forceScalarizeMaskedScatter(cast(SrcVTy), Align(Alignment)))) return 1; return BaseT::getGatherScatterOpCost(Opcode, SrcVTy, Ptr, VariableMask, Alignment, CostKind, I); } assert(SrcVTy->isVectorTy() && "Unexpected data type for Gather/Scatter"); PointerType *PtrTy = dyn_cast(Ptr->getType()); if (!PtrTy && Ptr->getType()->isVectorTy()) PtrTy = dyn_cast( cast(Ptr->getType())->getElementType()); assert(PtrTy && "Unexpected type for Ptr argument"); unsigned AddressSpace = PtrTy->getAddressSpace(); if ((Opcode == Instruction::Load && (!isLegalMaskedGather(SrcVTy, Align(Alignment)) || forceScalarizeMaskedGather(cast(SrcVTy), Align(Alignment)))) || (Opcode == Instruction::Store && (!isLegalMaskedScatter(SrcVTy, Align(Alignment)) || forceScalarizeMaskedScatter(cast(SrcVTy), Align(Alignment))))) return getGSScalarCost(Opcode, SrcVTy, VariableMask, Alignment, AddressSpace); return getGSVectorCost(Opcode, SrcVTy, Ptr, Alignment, AddressSpace); } bool X86TTIImpl::isLSRCostLess(const TargetTransformInfo::LSRCost &C1, const TargetTransformInfo::LSRCost &C2) { // X86 specific here are "instruction number 1st priority". return std::tie(C1.Insns, C1.NumRegs, C1.AddRecCost, C1.NumIVMuls, C1.NumBaseAdds, C1.ScaleCost, C1.ImmCost, C1.SetupCost) < std::tie(C2.Insns, C2.NumRegs, C2.AddRecCost, C2.NumIVMuls, C2.NumBaseAdds, C2.ScaleCost, C2.ImmCost, C2.SetupCost); } bool X86TTIImpl::canMacroFuseCmp() { return ST->hasMacroFusion() || ST->hasBranchFusion(); } bool X86TTIImpl::isLegalMaskedLoad(Type *DataTy, Align Alignment) { if (!ST->hasAVX()) return false; // The backend can't handle a single element vector. if (isa(DataTy) && cast(DataTy)->getNumElements() == 1) return false; Type *ScalarTy = DataTy->getScalarType(); if (ScalarTy->isPointerTy()) return true; if (ScalarTy->isFloatTy() || ScalarTy->isDoubleTy()) return true; if (ScalarTy->isHalfTy() && ST->hasBWI()) return true; if (ScalarTy->isBFloatTy() && ST->hasBF16()) return true; if (!ScalarTy->isIntegerTy()) return false; unsigned IntWidth = ScalarTy->getIntegerBitWidth(); return IntWidth == 32 || IntWidth == 64 || ((IntWidth == 8 || IntWidth == 16) && ST->hasBWI()); } bool X86TTIImpl::isLegalMaskedStore(Type *DataType, Align Alignment) { return isLegalMaskedLoad(DataType, Alignment); } bool X86TTIImpl::isLegalNTLoad(Type *DataType, Align Alignment) { unsigned DataSize = DL.getTypeStoreSize(DataType); // The only supported nontemporal loads are for aligned vectors of 16 or 32 // bytes. Note that 32-byte nontemporal vector loads are supported by AVX2 // (the equivalent stores only require AVX). if (Alignment >= DataSize && (DataSize == 16 || DataSize == 32)) return DataSize == 16 ? ST->hasSSE1() : ST->hasAVX2(); return false; } bool X86TTIImpl::isLegalNTStore(Type *DataType, Align Alignment) { unsigned DataSize = DL.getTypeStoreSize(DataType); // SSE4A supports nontemporal stores of float and double at arbitrary // alignment. if (ST->hasSSE4A() && (DataType->isFloatTy() || DataType->isDoubleTy())) return true; // Besides the SSE4A subtarget exception above, only aligned stores are // available nontemporaly on any other subtarget. And only stores with a size // of 4..32 bytes (powers of 2, only) are permitted. if (Alignment < DataSize || DataSize < 4 || DataSize > 32 || !isPowerOf2_32(DataSize)) return false; // 32-byte vector nontemporal stores are supported by AVX (the equivalent // loads require AVX2). if (DataSize == 32) return ST->hasAVX(); if (DataSize == 16) return ST->hasSSE1(); return true; } bool X86TTIImpl::isLegalBroadcastLoad(Type *ElementTy, ElementCount NumElements) const { // movddup return ST->hasSSE3() && !NumElements.isScalable() && NumElements.getFixedValue() == 2 && ElementTy == Type::getDoubleTy(ElementTy->getContext()); } bool X86TTIImpl::isLegalMaskedExpandLoad(Type *DataTy) { if (!isa(DataTy)) return false; if (!ST->hasAVX512()) return false; // The backend can't handle a single element vector. if (cast(DataTy)->getNumElements() == 1) return false; Type *ScalarTy = cast(DataTy)->getElementType(); if (ScalarTy->isFloatTy() || ScalarTy->isDoubleTy()) return true; if (!ScalarTy->isIntegerTy()) return false; unsigned IntWidth = ScalarTy->getIntegerBitWidth(); return IntWidth == 32 || IntWidth == 64 || ((IntWidth == 8 || IntWidth == 16) && ST->hasVBMI2()); } bool X86TTIImpl::isLegalMaskedCompressStore(Type *DataTy) { return isLegalMaskedExpandLoad(DataTy); } bool X86TTIImpl::supportsGather() const { // Some CPUs have better gather performance than others. // TODO: Remove the explicit ST->hasAVX512()?, That would mean we would only // enable gather with a -march. return ST->hasAVX512() || (ST->hasFastGather() && ST->hasAVX2()); } bool X86TTIImpl::forceScalarizeMaskedGather(VectorType *VTy, Align Alignment) { // Gather / Scatter for vector 2 is not profitable on KNL / SKX // Vector-4 of gather/scatter instruction does not exist on KNL. We can extend // it to 8 elements, but zeroing upper bits of the mask vector will add more // instructions. Right now we give the scalar cost of vector-4 for KNL. TODO: // Check, maybe the gather/scatter instruction is better in the VariableMask // case. unsigned NumElts = cast(VTy)->getNumElements(); return NumElts == 1 || (ST->hasAVX512() && (NumElts == 2 || (NumElts == 4 && !ST->hasVLX()))); } bool X86TTIImpl::isLegalMaskedGatherScatter(Type *DataTy, Align Alignment) { Type *ScalarTy = DataTy->getScalarType(); if (ScalarTy->isPointerTy()) return true; if (ScalarTy->isFloatTy() || ScalarTy->isDoubleTy()) return true; if (!ScalarTy->isIntegerTy()) return false; unsigned IntWidth = ScalarTy->getIntegerBitWidth(); return IntWidth == 32 || IntWidth == 64; } bool X86TTIImpl::isLegalMaskedGather(Type *DataTy, Align Alignment) { if (!supportsGather() || !ST->preferGather()) return false; return isLegalMaskedGatherScatter(DataTy, Alignment); } bool X86TTIImpl::isLegalAltInstr(VectorType *VecTy, unsigned Opcode0, unsigned Opcode1, const SmallBitVector &OpcodeMask) const { // ADDSUBPS 4xf32 SSE3 // VADDSUBPS 4xf32 AVX // VADDSUBPS 8xf32 AVX2 // ADDSUBPD 2xf64 SSE3 // VADDSUBPD 2xf64 AVX // VADDSUBPD 4xf64 AVX2 unsigned NumElements = cast(VecTy)->getNumElements(); assert(OpcodeMask.size() == NumElements && "Mask and VecTy are incompatible"); if (!isPowerOf2_32(NumElements)) return false; // Check the opcode pattern. We apply the mask on the opcode arguments and // then check if it is what we expect. for (int Lane : seq(0, NumElements)) { unsigned Opc = OpcodeMask.test(Lane) ? Opcode1 : Opcode0; // We expect FSub for even lanes and FAdd for odd lanes. if (Lane % 2 == 0 && Opc != Instruction::FSub) return false; if (Lane % 2 == 1 && Opc != Instruction::FAdd) return false; } // Now check that the pattern is supported by the target ISA. Type *ElemTy = cast(VecTy)->getElementType(); if (ElemTy->isFloatTy()) return ST->hasSSE3() && NumElements % 4 == 0; if (ElemTy->isDoubleTy()) return ST->hasSSE3() && NumElements % 2 == 0; return false; } bool X86TTIImpl::isLegalMaskedScatter(Type *DataType, Align Alignment) { // AVX2 doesn't support scatter if (!ST->hasAVX512() || !ST->preferScatter()) return false; return isLegalMaskedGatherScatter(DataType, Alignment); } bool X86TTIImpl::hasDivRemOp(Type *DataType, bool IsSigned) { EVT VT = TLI->getValueType(DL, DataType); return TLI->isOperationLegal(IsSigned ? ISD::SDIVREM : ISD::UDIVREM, VT); } bool X86TTIImpl::isExpensiveToSpeculativelyExecute(const Instruction* I) { // FDIV is always expensive, even if it has a very low uop count. // TODO: Still necessary for recent CPUs with low latency/throughput fdiv? if (I->getOpcode() == Instruction::FDiv) return true; return BaseT::isExpensiveToSpeculativelyExecute(I); } bool X86TTIImpl::isFCmpOrdCheaperThanFCmpZero(Type *Ty) { return false; } bool X86TTIImpl::areInlineCompatible(const Function *Caller, const Function *Callee) const { const TargetMachine &TM = getTLI()->getTargetMachine(); // Work this as a subsetting of subtarget features. const FeatureBitset &CallerBits = TM.getSubtargetImpl(*Caller)->getFeatureBits(); const FeatureBitset &CalleeBits = TM.getSubtargetImpl(*Callee)->getFeatureBits(); // Check whether features are the same (apart from the ignore list). FeatureBitset RealCallerBits = CallerBits & ~InlineFeatureIgnoreList; FeatureBitset RealCalleeBits = CalleeBits & ~InlineFeatureIgnoreList; if (RealCallerBits == RealCalleeBits) return true; // If the features are a subset, we need to additionally check for calls // that may become ABI-incompatible as a result of inlining. if ((RealCallerBits & RealCalleeBits) != RealCalleeBits) return false; for (const Instruction &I : instructions(Callee)) { if (const auto *CB = dyn_cast(&I)) { SmallVector Types; for (Value *Arg : CB->args()) Types.push_back(Arg->getType()); if (!CB->getType()->isVoidTy()) Types.push_back(CB->getType()); // Simple types are always ABI compatible. auto IsSimpleTy = [](Type *Ty) { return !Ty->isVectorTy() && !Ty->isAggregateType(); }; if (all_of(Types, IsSimpleTy)) continue; if (Function *NestedCallee = CB->getCalledFunction()) { // Assume that intrinsics are always ABI compatible. if (NestedCallee->isIntrinsic()) continue; // Do a precise compatibility check. if (!areTypesABICompatible(Caller, NestedCallee, Types)) return false; } else { // We don't know the target features of the callee, // assume it is incompatible. return false; } } } return true; } bool X86TTIImpl::areTypesABICompatible(const Function *Caller, const Function *Callee, const ArrayRef &Types) const { if (!BaseT::areTypesABICompatible(Caller, Callee, Types)) return false; // If we get here, we know the target features match. If one function // considers 512-bit vectors legal and the other does not, consider them // incompatible. const TargetMachine &TM = getTLI()->getTargetMachine(); if (TM.getSubtarget(*Caller).useAVX512Regs() == TM.getSubtarget(*Callee).useAVX512Regs()) return true; // Consider the arguments compatible if they aren't vectors or aggregates. // FIXME: Look at the size of vectors. // FIXME: Look at the element types of aggregates to see if there are vectors. return llvm::none_of(Types, [](Type *T) { return T->isVectorTy() || T->isAggregateType(); }); } X86TTIImpl::TTI::MemCmpExpansionOptions X86TTIImpl::enableMemCmpExpansion(bool OptSize, bool IsZeroCmp) const { TTI::MemCmpExpansionOptions Options; Options.MaxNumLoads = TLI->getMaxExpandSizeMemcmp(OptSize); Options.NumLoadsPerBlock = 2; // All GPR and vector loads can be unaligned. Options.AllowOverlappingLoads = true; if (IsZeroCmp) { // Only enable vector loads for equality comparison. Right now the vector // version is not as fast for three way compare (see #33329). const unsigned PreferredWidth = ST->getPreferVectorWidth(); if (PreferredWidth >= 512 && ST->hasAVX512() && ST->hasEVEX512()) Options.LoadSizes.push_back(64); if (PreferredWidth >= 256 && ST->hasAVX()) Options.LoadSizes.push_back(32); if (PreferredWidth >= 128 && ST->hasSSE2()) Options.LoadSizes.push_back(16); } if (ST->is64Bit()) { Options.LoadSizes.push_back(8); } Options.LoadSizes.push_back(4); Options.LoadSizes.push_back(2); Options.LoadSizes.push_back(1); return Options; } bool X86TTIImpl::prefersVectorizedAddressing() const { return supportsGather(); } bool X86TTIImpl::supportsEfficientVectorElementLoadStore() const { return false; } bool X86TTIImpl::enableInterleavedAccessVectorization() { // TODO: We expect this to be beneficial regardless of arch, // but there are currently some unexplained performance artifacts on Atom. // As a temporary solution, disable on Atom. return !(ST->isAtom()); } // Get estimation for interleaved load/store operations and strided load. // \p Indices contains indices for strided load. // \p Factor - the factor of interleaving. // AVX-512 provides 3-src shuffles that significantly reduces the cost. InstructionCost X86TTIImpl::getInterleavedMemoryOpCostAVX512( unsigned Opcode, FixedVectorType *VecTy, unsigned Factor, ArrayRef Indices, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, bool UseMaskForCond, bool UseMaskForGaps) { // VecTy for interleave memop is . // So, for VF=4, Interleave Factor = 3, Element type = i32 we have // VecTy = <12 x i32>. // Calculate the number of memory operations (NumOfMemOps), required // for load/store the VecTy. MVT LegalVT = getTypeLegalizationCost(VecTy).second; unsigned VecTySize = DL.getTypeStoreSize(VecTy); unsigned LegalVTSize = LegalVT.getStoreSize(); unsigned NumOfMemOps = (VecTySize + LegalVTSize - 1) / LegalVTSize; // Get the cost of one memory operation. auto *SingleMemOpTy = FixedVectorType::get(VecTy->getElementType(), LegalVT.getVectorNumElements()); InstructionCost MemOpCost; bool UseMaskedMemOp = UseMaskForCond || UseMaskForGaps; if (UseMaskedMemOp) MemOpCost = getMaskedMemoryOpCost(Opcode, SingleMemOpTy, Alignment, AddressSpace, CostKind); else MemOpCost = getMemoryOpCost(Opcode, SingleMemOpTy, MaybeAlign(Alignment), AddressSpace, CostKind); unsigned VF = VecTy->getNumElements() / Factor; MVT VT = MVT::getVectorVT(MVT::getVT(VecTy->getScalarType()), VF); InstructionCost MaskCost; if (UseMaskedMemOp) { APInt DemandedLoadStoreElts = APInt::getZero(VecTy->getNumElements()); for (unsigned Index : Indices) { assert(Index < Factor && "Invalid index for interleaved memory op"); for (unsigned Elm = 0; Elm < VF; Elm++) DemandedLoadStoreElts.setBit(Index + Elm * Factor); } Type *I1Type = Type::getInt1Ty(VecTy->getContext()); MaskCost = getReplicationShuffleCost( I1Type, Factor, VF, UseMaskForGaps ? DemandedLoadStoreElts : APInt::getAllOnes(VecTy->getNumElements()), CostKind); // The Gaps mask is invariant and created outside the loop, therefore the // cost of creating it is not accounted for here. However if we have both // a MaskForGaps and some other mask that guards the execution of the // memory access, we need to account for the cost of And-ing the two masks // inside the loop. if (UseMaskForGaps) { auto *MaskVT = FixedVectorType::get(I1Type, VecTy->getNumElements()); MaskCost += getArithmeticInstrCost(BinaryOperator::And, MaskVT, CostKind); } } if (Opcode == Instruction::Load) { // The tables (AVX512InterleavedLoadTbl and AVX512InterleavedStoreTbl) // contain the cost of the optimized shuffle sequence that the // X86InterleavedAccess pass will generate. // The cost of loads and stores are computed separately from the table. // X86InterleavedAccess support only the following interleaved-access group. static const CostTblEntry AVX512InterleavedLoadTbl[] = { {3, MVT::v16i8, 12}, //(load 48i8 and) deinterleave into 3 x 16i8 {3, MVT::v32i8, 14}, //(load 96i8 and) deinterleave into 3 x 32i8 {3, MVT::v64i8, 22}, //(load 96i8 and) deinterleave into 3 x 32i8 }; if (const auto *Entry = CostTableLookup(AVX512InterleavedLoadTbl, Factor, VT)) return MaskCost + NumOfMemOps * MemOpCost + Entry->Cost; //If an entry does not exist, fallback to the default implementation. // Kind of shuffle depends on number of loaded values. // If we load the entire data in one register, we can use a 1-src shuffle. // Otherwise, we'll merge 2 sources in each operation. TTI::ShuffleKind ShuffleKind = (NumOfMemOps > 1) ? TTI::SK_PermuteTwoSrc : TTI::SK_PermuteSingleSrc; InstructionCost ShuffleCost = getShuffleCost( ShuffleKind, SingleMemOpTy, std::nullopt, CostKind, 0, nullptr); unsigned NumOfLoadsInInterleaveGrp = Indices.size() ? Indices.size() : Factor; auto *ResultTy = FixedVectorType::get(VecTy->getElementType(), VecTy->getNumElements() / Factor); InstructionCost NumOfResults = getTypeLegalizationCost(ResultTy).first * NumOfLoadsInInterleaveGrp; // About a half of the loads may be folded in shuffles when we have only // one result. If we have more than one result, or the loads are masked, // we do not fold loads at all. unsigned NumOfUnfoldedLoads = UseMaskedMemOp || NumOfResults > 1 ? NumOfMemOps : NumOfMemOps / 2; // Get a number of shuffle operations per result. unsigned NumOfShufflesPerResult = std::max((unsigned)1, (unsigned)(NumOfMemOps - 1)); // The SK_MergeTwoSrc shuffle clobbers one of src operands. // When we have more than one destination, we need additional instructions // to keep sources. InstructionCost NumOfMoves = 0; if (NumOfResults > 1 && ShuffleKind == TTI::SK_PermuteTwoSrc) NumOfMoves = NumOfResults * NumOfShufflesPerResult / 2; InstructionCost Cost = NumOfResults * NumOfShufflesPerResult * ShuffleCost + MaskCost + NumOfUnfoldedLoads * MemOpCost + NumOfMoves; return Cost; } // Store. assert(Opcode == Instruction::Store && "Expected Store Instruction at this point"); // X86InterleavedAccess support only the following interleaved-access group. static const CostTblEntry AVX512InterleavedStoreTbl[] = { {3, MVT::v16i8, 12}, // interleave 3 x 16i8 into 48i8 (and store) {3, MVT::v32i8, 14}, // interleave 3 x 32i8 into 96i8 (and store) {3, MVT::v64i8, 26}, // interleave 3 x 64i8 into 96i8 (and store) {4, MVT::v8i8, 10}, // interleave 4 x 8i8 into 32i8 (and store) {4, MVT::v16i8, 11}, // interleave 4 x 16i8 into 64i8 (and store) {4, MVT::v32i8, 14}, // interleave 4 x 32i8 into 128i8 (and store) {4, MVT::v64i8, 24} // interleave 4 x 32i8 into 256i8 (and store) }; if (const auto *Entry = CostTableLookup(AVX512InterleavedStoreTbl, Factor, VT)) return MaskCost + NumOfMemOps * MemOpCost + Entry->Cost; //If an entry does not exist, fallback to the default implementation. // There is no strided stores meanwhile. And store can't be folded in // shuffle. unsigned NumOfSources = Factor; // The number of values to be merged. InstructionCost ShuffleCost = getShuffleCost( TTI::SK_PermuteTwoSrc, SingleMemOpTy, std::nullopt, CostKind, 0, nullptr); unsigned NumOfShufflesPerStore = NumOfSources - 1; // The SK_MergeTwoSrc shuffle clobbers one of src operands. // We need additional instructions to keep sources. unsigned NumOfMoves = NumOfMemOps * NumOfShufflesPerStore / 2; InstructionCost Cost = MaskCost + NumOfMemOps * (MemOpCost + NumOfShufflesPerStore * ShuffleCost) + NumOfMoves; return Cost; } InstructionCost X86TTIImpl::getInterleavedMemoryOpCost( unsigned Opcode, Type *BaseTy, unsigned Factor, ArrayRef Indices, Align Alignment, unsigned AddressSpace, TTI::TargetCostKind CostKind, bool UseMaskForCond, bool UseMaskForGaps) { auto *VecTy = cast(BaseTy); auto isSupportedOnAVX512 = [&](Type *VecTy) { Type *EltTy = cast(VecTy)->getElementType(); if (EltTy->isFloatTy() || EltTy->isDoubleTy() || EltTy->isIntegerTy(64) || EltTy->isIntegerTy(32) || EltTy->isPointerTy()) return true; if (EltTy->isIntegerTy(16) || EltTy->isIntegerTy(8) || EltTy->isHalfTy()) return ST->hasBWI(); if (EltTy->isBFloatTy()) return ST->hasBF16(); return false; }; if (ST->hasAVX512() && isSupportedOnAVX512(VecTy)) return getInterleavedMemoryOpCostAVX512( Opcode, VecTy, Factor, Indices, Alignment, AddressSpace, CostKind, UseMaskForCond, UseMaskForGaps); if (UseMaskForCond || UseMaskForGaps) return BaseT::getInterleavedMemoryOpCost(Opcode, VecTy, Factor, Indices, Alignment, AddressSpace, CostKind, UseMaskForCond, UseMaskForGaps); // Get estimation for interleaved load/store operations for SSE-AVX2. // As opposed to AVX-512, SSE-AVX2 do not have generic shuffles that allow // computing the cost using a generic formula as a function of generic // shuffles. We therefore use a lookup table instead, filled according to // the instruction sequences that codegen currently generates. // VecTy for interleave memop is . // So, for VF=4, Interleave Factor = 3, Element type = i32 we have // VecTy = <12 x i32>. MVT LegalVT = getTypeLegalizationCost(VecTy).second; // This function can be called with VecTy=<6xi128>, Factor=3, in which case // the VF=2, while v2i128 is an unsupported MVT vector type // (see MachineValueType.h::getVectorVT()). if (!LegalVT.isVector()) return BaseT::getInterleavedMemoryOpCost(Opcode, VecTy, Factor, Indices, Alignment, AddressSpace, CostKind); unsigned VF = VecTy->getNumElements() / Factor; Type *ScalarTy = VecTy->getElementType(); // Deduplicate entries, model floats/pointers as appropriately-sized integers. if (!ScalarTy->isIntegerTy()) ScalarTy = Type::getIntNTy(ScalarTy->getContext(), DL.getTypeSizeInBits(ScalarTy)); // Get the cost of all the memory operations. // FIXME: discount dead loads. InstructionCost MemOpCosts = getMemoryOpCost( Opcode, VecTy, MaybeAlign(Alignment), AddressSpace, CostKind); auto *VT = FixedVectorType::get(ScalarTy, VF); EVT ETy = TLI->getValueType(DL, VT); if (!ETy.isSimple()) return BaseT::getInterleavedMemoryOpCost(Opcode, VecTy, Factor, Indices, Alignment, AddressSpace, CostKind); // TODO: Complete for other data-types and strides. // Each combination of Stride, element bit width and VF results in a different // sequence; The cost tables are therefore accessed with: // Factor (stride) and VectorType=VFxiN. // The Cost accounts only for the shuffle sequence; // The cost of the loads/stores is accounted for separately. // static const CostTblEntry AVX2InterleavedLoadTbl[] = { {2, MVT::v2i8, 2}, // (load 4i8 and) deinterleave into 2 x 2i8 {2, MVT::v4i8, 2}, // (load 8i8 and) deinterleave into 2 x 4i8 {2, MVT::v8i8, 2}, // (load 16i8 and) deinterleave into 2 x 8i8 {2, MVT::v16i8, 4}, // (load 32i8 and) deinterleave into 2 x 16i8 {2, MVT::v32i8, 6}, // (load 64i8 and) deinterleave into 2 x 32i8 {2, MVT::v8i16, 6}, // (load 16i16 and) deinterleave into 2 x 8i16 {2, MVT::v16i16, 9}, // (load 32i16 and) deinterleave into 2 x 16i16 {2, MVT::v32i16, 18}, // (load 64i16 and) deinterleave into 2 x 32i16 {2, MVT::v8i32, 4}, // (load 16i32 and) deinterleave into 2 x 8i32 {2, MVT::v16i32, 8}, // (load 32i32 and) deinterleave into 2 x 16i32 {2, MVT::v32i32, 16}, // (load 64i32 and) deinterleave into 2 x 32i32 {2, MVT::v4i64, 4}, // (load 8i64 and) deinterleave into 2 x 4i64 {2, MVT::v8i64, 8}, // (load 16i64 and) deinterleave into 2 x 8i64 {2, MVT::v16i64, 16}, // (load 32i64 and) deinterleave into 2 x 16i64 {2, MVT::v32i64, 32}, // (load 64i64 and) deinterleave into 2 x 32i64 {3, MVT::v2i8, 3}, // (load 6i8 and) deinterleave into 3 x 2i8 {3, MVT::v4i8, 3}, // (load 12i8 and) deinterleave into 3 x 4i8 {3, MVT::v8i8, 6}, // (load 24i8 and) deinterleave into 3 x 8i8 {3, MVT::v16i8, 11}, // (load 48i8 and) deinterleave into 3 x 16i8 {3, MVT::v32i8, 14}, // (load 96i8 and) deinterleave into 3 x 32i8 {3, MVT::v2i16, 5}, // (load 6i16 and) deinterleave into 3 x 2i16 {3, MVT::v4i16, 7}, // (load 12i16 and) deinterleave into 3 x 4i16 {3, MVT::v8i16, 9}, // (load 24i16 and) deinterleave into 3 x 8i16 {3, MVT::v16i16, 28}, // (load 48i16 and) deinterleave into 3 x 16i16 {3, MVT::v32i16, 56}, // (load 96i16 and) deinterleave into 3 x 32i16 {3, MVT::v2i32, 3}, // (load 6i32 and) deinterleave into 3 x 2i32 {3, MVT::v4i32, 3}, // (load 12i32 and) deinterleave into 3 x 4i32 {3, MVT::v8i32, 7}, // (load 24i32 and) deinterleave into 3 x 8i32 {3, MVT::v16i32, 14}, // (load 48i32 and) deinterleave into 3 x 16i32 {3, MVT::v32i32, 32}, // (load 96i32 and) deinterleave into 3 x 32i32 {3, MVT::v2i64, 1}, // (load 6i64 and) deinterleave into 3 x 2i64 {3, MVT::v4i64, 5}, // (load 12i64 and) deinterleave into 3 x 4i64 {3, MVT::v8i64, 10}, // (load 24i64 and) deinterleave into 3 x 8i64 {3, MVT::v16i64, 20}, // (load 48i64 and) deinterleave into 3 x 16i64 {4, MVT::v2i8, 4}, // (load 8i8 and) deinterleave into 4 x 2i8 {4, MVT::v4i8, 4}, // (load 16i8 and) deinterleave into 4 x 4i8 {4, MVT::v8i8, 12}, // (load 32i8 and) deinterleave into 4 x 8i8 {4, MVT::v16i8, 24}, // (load 64i8 and) deinterleave into 4 x 16i8 {4, MVT::v32i8, 56}, // (load 128i8 and) deinterleave into 4 x 32i8 {4, MVT::v2i16, 6}, // (load 8i16 and) deinterleave into 4 x 2i16 {4, MVT::v4i16, 17}, // (load 16i16 and) deinterleave into 4 x 4i16 {4, MVT::v8i16, 33}, // (load 32i16 and) deinterleave into 4 x 8i16 {4, MVT::v16i16, 75}, // (load 64i16 and) deinterleave into 4 x 16i16 {4, MVT::v32i16, 150}, // (load 128i16 and) deinterleave into 4 x 32i16 {4, MVT::v2i32, 4}, // (load 8i32 and) deinterleave into 4 x 2i32 {4, MVT::v4i32, 8}, // (load 16i32 and) deinterleave into 4 x 4i32 {4, MVT::v8i32, 16}, // (load 32i32 and) deinterleave into 4 x 8i32 {4, MVT::v16i32, 32}, // (load 64i32 and) deinterleave into 4 x 16i32 {4, MVT::v32i32, 68}, // (load 128i32 and) deinterleave into 4 x 32i32 {4, MVT::v2i64, 6}, // (load 8i64 and) deinterleave into 4 x 2i64 {4, MVT::v4i64, 8}, // (load 16i64 and) deinterleave into 4 x 4i64 {4, MVT::v8i64, 20}, // (load 32i64 and) deinterleave into 4 x 8i64 {4, MVT::v16i64, 40}, // (load 64i64 and) deinterleave into 4 x 16i64 {6, MVT::v2i8, 6}, // (load 12i8 and) deinterleave into 6 x 2i8 {6, MVT::v4i8, 14}, // (load 24i8 and) deinterleave into 6 x 4i8 {6, MVT::v8i8, 18}, // (load 48i8 and) deinterleave into 6 x 8i8 {6, MVT::v16i8, 43}, // (load 96i8 and) deinterleave into 6 x 16i8 {6, MVT::v32i8, 82}, // (load 192i8 and) deinterleave into 6 x 32i8 {6, MVT::v2i16, 13}, // (load 12i16 and) deinterleave into 6 x 2i16 {6, MVT::v4i16, 9}, // (load 24i16 and) deinterleave into 6 x 4i16 {6, MVT::v8i16, 39}, // (load 48i16 and) deinterleave into 6 x 8i16 {6, MVT::v16i16, 106}, // (load 96i16 and) deinterleave into 6 x 16i16 {6, MVT::v32i16, 212}, // (load 192i16 and) deinterleave into 6 x 32i16 {6, MVT::v2i32, 6}, // (load 12i32 and) deinterleave into 6 x 2i32 {6, MVT::v4i32, 15}, // (load 24i32 and) deinterleave into 6 x 4i32 {6, MVT::v8i32, 31}, // (load 48i32 and) deinterleave into 6 x 8i32 {6, MVT::v16i32, 64}, // (load 96i32 and) deinterleave into 6 x 16i32 {6, MVT::v2i64, 6}, // (load 12i64 and) deinterleave into 6 x 2i64 {6, MVT::v4i64, 18}, // (load 24i64 and) deinterleave into 6 x 4i64 {6, MVT::v8i64, 36}, // (load 48i64 and) deinterleave into 6 x 8i64 {8, MVT::v8i32, 40} // (load 64i32 and) deinterleave into 8 x 8i32 }; static const CostTblEntry SSSE3InterleavedLoadTbl[] = { {2, MVT::v4i16, 2}, // (load 8i16 and) deinterleave into 2 x 4i16 }; static const CostTblEntry SSE2InterleavedLoadTbl[] = { {2, MVT::v2i16, 2}, // (load 4i16 and) deinterleave into 2 x 2i16 {2, MVT::v4i16, 7}, // (load 8i16 and) deinterleave into 2 x 4i16 {2, MVT::v2i32, 2}, // (load 4i32 and) deinterleave into 2 x 2i32 {2, MVT::v4i32, 2}, // (load 8i32 and) deinterleave into 2 x 4i32 {2, MVT::v2i64, 2}, // (load 4i64 and) deinterleave into 2 x 2i64 }; static const CostTblEntry AVX2InterleavedStoreTbl[] = { {2, MVT::v16i8, 3}, // interleave 2 x 16i8 into 32i8 (and store) {2, MVT::v32i8, 4}, // interleave 2 x 32i8 into 64i8 (and store) {2, MVT::v8i16, 3}, // interleave 2 x 8i16 into 16i16 (and store) {2, MVT::v16i16, 4}, // interleave 2 x 16i16 into 32i16 (and store) {2, MVT::v32i16, 8}, // interleave 2 x 32i16 into 64i16 (and store) {2, MVT::v4i32, 2}, // interleave 2 x 4i32 into 8i32 (and store) {2, MVT::v8i32, 4}, // interleave 2 x 8i32 into 16i32 (and store) {2, MVT::v16i32, 8}, // interleave 2 x 16i32 into 32i32 (and store) {2, MVT::v32i32, 16}, // interleave 2 x 32i32 into 64i32 (and store) {2, MVT::v2i64, 2}, // interleave 2 x 2i64 into 4i64 (and store) {2, MVT::v4i64, 4}, // interleave 2 x 4i64 into 8i64 (and store) {2, MVT::v8i64, 8}, // interleave 2 x 8i64 into 16i64 (and store) {2, MVT::v16i64, 16}, // interleave 2 x 16i64 into 32i64 (and store) {2, MVT::v32i64, 32}, // interleave 2 x 32i64 into 64i64 (and store) {3, MVT::v2i8, 4}, // interleave 3 x 2i8 into 6i8 (and store) {3, MVT::v4i8, 4}, // interleave 3 x 4i8 into 12i8 (and store) {3, MVT::v8i8, 6}, // interleave 3 x 8i8 into 24i8 (and store) {3, MVT::v16i8, 11}, // interleave 3 x 16i8 into 48i8 (and store) {3, MVT::v32i8, 13}, // interleave 3 x 32i8 into 96i8 (and store) {3, MVT::v2i16, 4}, // interleave 3 x 2i16 into 6i16 (and store) {3, MVT::v4i16, 6}, // interleave 3 x 4i16 into 12i16 (and store) {3, MVT::v8i16, 12}, // interleave 3 x 8i16 into 24i16 (and store) {3, MVT::v16i16, 27}, // interleave 3 x 16i16 into 48i16 (and store) {3, MVT::v32i16, 54}, // interleave 3 x 32i16 into 96i16 (and store) {3, MVT::v2i32, 4}, // interleave 3 x 2i32 into 6i32 (and store) {3, MVT::v4i32, 5}, // interleave 3 x 4i32 into 12i32 (and store) {3, MVT::v8i32, 11}, // interleave 3 x 8i32 into 24i32 (and store) {3, MVT::v16i32, 22}, // interleave 3 x 16i32 into 48i32 (and store) {3, MVT::v32i32, 48}, // interleave 3 x 32i32 into 96i32 (and store) {3, MVT::v2i64, 4}, // interleave 3 x 2i64 into 6i64 (and store) {3, MVT::v4i64, 6}, // interleave 3 x 4i64 into 12i64 (and store) {3, MVT::v8i64, 12}, // interleave 3 x 8i64 into 24i64 (and store) {3, MVT::v16i64, 24}, // interleave 3 x 16i64 into 48i64 (and store) {4, MVT::v2i8, 4}, // interleave 4 x 2i8 into 8i8 (and store) {4, MVT::v4i8, 4}, // interleave 4 x 4i8 into 16i8 (and store) {4, MVT::v8i8, 4}, // interleave 4 x 8i8 into 32i8 (and store) {4, MVT::v16i8, 8}, // interleave 4 x 16i8 into 64i8 (and store) {4, MVT::v32i8, 12}, // interleave 4 x 32i8 into 128i8 (and store) {4, MVT::v2i16, 2}, // interleave 4 x 2i16 into 8i16 (and store) {4, MVT::v4i16, 6}, // interleave 4 x 4i16 into 16i16 (and store) {4, MVT::v8i16, 10}, // interleave 4 x 8i16 into 32i16 (and store) {4, MVT::v16i16, 32}, // interleave 4 x 16i16 into 64i16 (and store) {4, MVT::v32i16, 64}, // interleave 4 x 32i16 into 128i16 (and store) {4, MVT::v2i32, 5}, // interleave 4 x 2i32 into 8i32 (and store) {4, MVT::v4i32, 6}, // interleave 4 x 4i32 into 16i32 (and store) {4, MVT::v8i32, 16}, // interleave 4 x 8i32 into 32i32 (and store) {4, MVT::v16i32, 32}, // interleave 4 x 16i32 into 64i32 (and store) {4, MVT::v32i32, 64}, // interleave 4 x 32i32 into 128i32 (and store) {4, MVT::v2i64, 6}, // interleave 4 x 2i64 into 8i64 (and store) {4, MVT::v4i64, 8}, // interleave 4 x 4i64 into 16i64 (and store) {4, MVT::v8i64, 20}, // interleave 4 x 8i64 into 32i64 (and store) {4, MVT::v16i64, 40}, // interleave 4 x 16i64 into 64i64 (and store) {6, MVT::v2i8, 7}, // interleave 6 x 2i8 into 12i8 (and store) {6, MVT::v4i8, 9}, // interleave 6 x 4i8 into 24i8 (and store) {6, MVT::v8i8, 16}, // interleave 6 x 8i8 into 48i8 (and store) {6, MVT::v16i8, 27}, // interleave 6 x 16i8 into 96i8 (and store) {6, MVT::v32i8, 90}, // interleave 6 x 32i8 into 192i8 (and store) {6, MVT::v2i16, 10}, // interleave 6 x 2i16 into 12i16 (and store) {6, MVT::v4i16, 15}, // interleave 6 x 4i16 into 24i16 (and store) {6, MVT::v8i16, 21}, // interleave 6 x 8i16 into 48i16 (and store) {6, MVT::v16i16, 58}, // interleave 6 x 16i16 into 96i16 (and store) {6, MVT::v32i16, 90}, // interleave 6 x 32i16 into 192i16 (and store) {6, MVT::v2i32, 9}, // interleave 6 x 2i32 into 12i32 (and store) {6, MVT::v4i32, 12}, // interleave 6 x 4i32 into 24i32 (and store) {6, MVT::v8i32, 33}, // interleave 6 x 8i32 into 48i32 (and store) {6, MVT::v16i32, 66}, // interleave 6 x 16i32 into 96i32 (and store) {6, MVT::v2i64, 8}, // interleave 6 x 2i64 into 12i64 (and store) {6, MVT::v4i64, 15}, // interleave 6 x 4i64 into 24i64 (and store) {6, MVT::v8i64, 30}, // interleave 6 x 8i64 into 48i64 (and store) }; static const CostTblEntry SSE2InterleavedStoreTbl[] = { {2, MVT::v2i8, 1}, // interleave 2 x 2i8 into 4i8 (and store) {2, MVT::v4i8, 1}, // interleave 2 x 4i8 into 8i8 (and store) {2, MVT::v8i8, 1}, // interleave 2 x 8i8 into 16i8 (and store) {2, MVT::v2i16, 1}, // interleave 2 x 2i16 into 4i16 (and store) {2, MVT::v4i16, 1}, // interleave 2 x 4i16 into 8i16 (and store) {2, MVT::v2i32, 1}, // interleave 2 x 2i32 into 4i32 (and store) }; if (Opcode == Instruction::Load) { auto GetDiscountedCost = [Factor, NumMembers = Indices.size(), MemOpCosts](const CostTblEntry *Entry) { // NOTE: this is just an approximation! // It can over/under -estimate the cost! return MemOpCosts + divideCeil(NumMembers * Entry->Cost, Factor); }; if (ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2InterleavedLoadTbl, Factor, ETy.getSimpleVT())) return GetDiscountedCost(Entry); if (ST->hasSSSE3()) if (const auto *Entry = CostTableLookup(SSSE3InterleavedLoadTbl, Factor, ETy.getSimpleVT())) return GetDiscountedCost(Entry); if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2InterleavedLoadTbl, Factor, ETy.getSimpleVT())) return GetDiscountedCost(Entry); } else { assert(Opcode == Instruction::Store && "Expected Store Instruction at this point"); assert((!Indices.size() || Indices.size() == Factor) && "Interleaved store only supports fully-interleaved groups."); if (ST->hasAVX2()) if (const auto *Entry = CostTableLookup(AVX2InterleavedStoreTbl, Factor, ETy.getSimpleVT())) return MemOpCosts + Entry->Cost; if (ST->hasSSE2()) if (const auto *Entry = CostTableLookup(SSE2InterleavedStoreTbl, Factor, ETy.getSimpleVT())) return MemOpCosts + Entry->Cost; } return BaseT::getInterleavedMemoryOpCost(Opcode, VecTy, Factor, Indices, Alignment, AddressSpace, CostKind, UseMaskForCond, UseMaskForGaps); } InstructionCost X86TTIImpl::getScalingFactorCost(Type *Ty, GlobalValue *BaseGV, int64_t BaseOffset, bool HasBaseReg, int64_t Scale, unsigned AddrSpace) const { // Scaling factors are not free at all. // An indexed folded instruction, i.e., inst (reg1, reg2, scale), // will take 2 allocations in the out of order engine instead of 1 // for plain addressing mode, i.e. inst (reg1). // E.g., // vaddps (%rsi,%rdx), %ymm0, %ymm1 // Requires two allocations (one for the load, one for the computation) // whereas: // vaddps (%rsi), %ymm0, %ymm1 // Requires just 1 allocation, i.e., freeing allocations for other operations // and having less micro operations to execute. // // For some X86 architectures, this is even worse because for instance for // stores, the complex addressing mode forces the instruction to use the // "load" ports instead of the dedicated "store" port. // E.g., on Haswell: // vmovaps %ymm1, (%r8, %rdi) can use port 2 or 3. // vmovaps %ymm1, (%r8) can use port 2, 3, or 7. TargetLoweringBase::AddrMode AM; AM.BaseGV = BaseGV; AM.BaseOffs = BaseOffset; AM.HasBaseReg = HasBaseReg; AM.Scale = Scale; if (getTLI()->isLegalAddressingMode(DL, AM, Ty, AddrSpace)) // Scale represents reg2 * scale, thus account for 1 // as soon as we use a second register. return AM.Scale != 0; return -1; }