1*0b57cec5SDimitry Andric //===-- WebAssemblySelectionDAGInfo.cpp - WebAssembly SelectionDAG Info ---===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric /// 9*0b57cec5SDimitry Andric /// \file 10*0b57cec5SDimitry Andric /// This file implements the WebAssemblySelectionDAGInfo class. 11*0b57cec5SDimitry Andric /// 12*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 13*0b57cec5SDimitry Andric 14*0b57cec5SDimitry Andric #include "WebAssemblyTargetMachine.h" 15*0b57cec5SDimitry Andric using namespace llvm; 16*0b57cec5SDimitry Andric 17*0b57cec5SDimitry Andric #define DEBUG_TYPE "wasm-selectiondag-info" 18*0b57cec5SDimitry Andric 19*0b57cec5SDimitry Andric WebAssemblySelectionDAGInfo::~WebAssemblySelectionDAGInfo() = default; // anchor 20*0b57cec5SDimitry Andric 21*0b57cec5SDimitry Andric SDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemcpy( 22*0b57cec5SDimitry Andric SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Src, 23*0b57cec5SDimitry Andric SDValue Size, unsigned Align, bool IsVolatile, bool AlwaysInline, 24*0b57cec5SDimitry Andric MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const { 25*0b57cec5SDimitry Andric if (!DAG.getMachineFunction() 26*0b57cec5SDimitry Andric .getSubtarget<WebAssemblySubtarget>() 27*0b57cec5SDimitry Andric .hasBulkMemory()) 28*0b57cec5SDimitry Andric return SDValue(); 29*0b57cec5SDimitry Andric 30*0b57cec5SDimitry Andric SDValue MemIdx = DAG.getConstant(0, DL, MVT::i32); 31*0b57cec5SDimitry Andric return DAG.getNode(WebAssemblyISD::MEMORY_COPY, DL, MVT::Other, 32*0b57cec5SDimitry Andric {Chain, MemIdx, MemIdx, Dst, Src, 33*0b57cec5SDimitry Andric DAG.getZExtOrTrunc(Size, DL, MVT::i32)}); 34*0b57cec5SDimitry Andric } 35*0b57cec5SDimitry Andric 36*0b57cec5SDimitry Andric SDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemmove( 37*0b57cec5SDimitry Andric SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Op1, SDValue Op2, 38*0b57cec5SDimitry Andric SDValue Op3, unsigned Align, bool IsVolatile, 39*0b57cec5SDimitry Andric MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const { 40*0b57cec5SDimitry Andric return EmitTargetCodeForMemcpy(DAG, DL, Chain, Op1, Op2, Op3, Align, 41*0b57cec5SDimitry Andric IsVolatile, false, DstPtrInfo, 42*0b57cec5SDimitry Andric SrcPtrInfo); 43*0b57cec5SDimitry Andric } 44*0b57cec5SDimitry Andric 45*0b57cec5SDimitry Andric SDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemset( 46*0b57cec5SDimitry Andric SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Val, 47*0b57cec5SDimitry Andric SDValue Size, unsigned Align, bool IsVolatile, 48*0b57cec5SDimitry Andric MachinePointerInfo DstPtrInfo) const { 49*0b57cec5SDimitry Andric if (!DAG.getMachineFunction() 50*0b57cec5SDimitry Andric .getSubtarget<WebAssemblySubtarget>() 51*0b57cec5SDimitry Andric .hasBulkMemory()) 52*0b57cec5SDimitry Andric return SDValue(); 53*0b57cec5SDimitry Andric 54*0b57cec5SDimitry Andric SDValue MemIdx = DAG.getConstant(0, DL, MVT::i32); 55*0b57cec5SDimitry Andric // Only low byte matters for val argument, so anyext the i8 56*0b57cec5SDimitry Andric return DAG.getNode(WebAssemblyISD::MEMORY_FILL, DL, MVT::Other, Chain, MemIdx, 57*0b57cec5SDimitry Andric Dst, DAG.getAnyExtOrTrunc(Val, DL, MVT::i32), 58*0b57cec5SDimitry Andric DAG.getZExtOrTrunc(Size, DL, MVT::i32)); 59*0b57cec5SDimitry Andric } 60