1 //===-- AMDGPUAsmPrinter.h - Print AMDGPU assembly code ---------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 /// \file 10 /// AMDGPU Assembly printer class. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H 15 #define LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H 16 17 #include "SIProgramInfo.h" 18 #include "llvm/CodeGen/AsmPrinter.h" 19 20 struct amd_kernel_code_t; 21 22 namespace llvm { 23 24 class AMDGPUMachineFunction; 25 struct AMDGPUResourceUsageAnalysis; 26 class AMDGPUTargetStreamer; 27 class MCCodeEmitter; 28 class MCOperand; 29 30 namespace AMDGPU { 31 namespace HSAMD { 32 class MetadataStreamer; 33 } 34 } // namespace AMDGPU 35 36 namespace amdhsa { 37 struct kernel_descriptor_t; 38 } 39 40 class AMDGPUAsmPrinter final : public AsmPrinter { 41 private: 42 void initializeTargetID(const Module &M); 43 44 AMDGPUResourceUsageAnalysis *ResourceUsage; 45 46 SIProgramInfo CurrentProgramInfo; 47 48 std::unique_ptr<AMDGPU::HSAMD::MetadataStreamer> HSAMetadataStream; 49 50 MCCodeEmitter *DumpCodeInstEmitter = nullptr; 51 52 uint64_t getFunctionCodeSize(const MachineFunction &MF) const; 53 54 void getSIProgramInfo(SIProgramInfo &Out, const MachineFunction &MF); 55 void getAmdKernelCode(amd_kernel_code_t &Out, const SIProgramInfo &KernelInfo, 56 const MachineFunction &MF) const; 57 58 /// Emit register usage information so that the GPU driver 59 /// can correctly setup the GPU state. 60 void EmitProgramInfoSI(const MachineFunction &MF, 61 const SIProgramInfo &KernelInfo); 62 void EmitPALMetadata(const MachineFunction &MF, 63 const SIProgramInfo &KernelInfo); 64 void emitPALFunctionMetadata(const MachineFunction &MF); 65 void emitCommonFunctionComments(uint32_t NumVGPR, 66 Optional<uint32_t> NumAGPR, 67 uint32_t TotalNumVGPR, 68 uint32_t NumSGPR, 69 uint64_t ScratchSize, 70 uint64_t CodeSize, 71 const AMDGPUMachineFunction* MFI); 72 73 uint16_t getAmdhsaKernelCodeProperties( 74 const MachineFunction &MF) const; 75 76 amdhsa::kernel_descriptor_t getAmdhsaKernelDescriptor( 77 const MachineFunction &MF, 78 const SIProgramInfo &PI) const; 79 80 public: 81 explicit AMDGPUAsmPrinter(TargetMachine &TM, 82 std::unique_ptr<MCStreamer> Streamer); 83 84 StringRef getPassName() const override; 85 86 const MCSubtargetInfo* getGlobalSTI() const; 87 88 AMDGPUTargetStreamer* getTargetStreamer() const; 89 90 bool doFinalization(Module &M) override; 91 bool runOnMachineFunction(MachineFunction &MF) override; 92 93 /// Wrapper for MCInstLowering.lowerOperand() for the tblgen'erated 94 /// pseudo lowering. 95 bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp) const; 96 97 /// Lower the specified LLVM Constant to an MCExpr. 98 /// The AsmPrinter::lowerConstantof does not know how to lower 99 /// addrspacecast, therefore they should be lowered by this function. 100 const MCExpr *lowerConstant(const Constant *CV) override; 101 102 /// tblgen'erated driver function for lowering simple MI->MC pseudo 103 /// instructions. 104 bool emitPseudoExpansionLowering(MCStreamer &OutStreamer, 105 const MachineInstr *MI); 106 107 /// Implemented in AMDGPUMCInstLower.cpp 108 void emitInstruction(const MachineInstr *MI) override; 109 110 void emitFunctionBodyStart() override; 111 112 void emitFunctionBodyEnd() override; 113 114 void emitFunctionEntryLabel() override; 115 116 void emitBasicBlockStart(const MachineBasicBlock &MBB) override; 117 118 void emitGlobalVariable(const GlobalVariable *GV) override; 119 120 void emitStartOfAsmFile(Module &M) override; 121 122 void emitEndOfAsmFile(Module &M) override; 123 124 bool isBlockOnlyReachableByFallthrough( 125 const MachineBasicBlock *MBB) const override; 126 127 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo, 128 const char *ExtraCode, raw_ostream &O) override; 129 130 protected: 131 void getAnalysisUsage(AnalysisUsage &AU) const override; 132 133 std::vector<std::string> DisasmLines, HexLines; 134 size_t DisasmLineMaxLen; 135 }; 136 137 } // end namespace llvm 138 139 #endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H 140