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//===-- AMDGPUAsmPrinter.h - Print AMDGPU assembly code ---------*- C++ -*-===//
//
// 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
/// AMDGPU Assembly printer class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H
#define LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H
#include "SIProgramInfo.h"
#include "llvm/CodeGen/AsmPrinter.h"
struct amd_kernel_code_t;
namespace llvm {
class AMDGPUMachineFunction;
struct AMDGPUResourceUsageAnalysis;
class AMDGPUTargetStreamer;
class MCCodeEmitter;
class MCOperand;
namespace AMDGPU {
namespace HSAMD {
class MetadataStreamer;
}
} // namespace AMDGPU
namespace amdhsa {
struct kernel_descriptor_t;
}
class AMDGPUAsmPrinter final : public AsmPrinter {
private:
unsigned CodeObjectVersion;
void initializeTargetID(const Module &M);
AMDGPUResourceUsageAnalysis *ResourceUsage;
SIProgramInfo CurrentProgramInfo;
std::unique_ptr<AMDGPU::HSAMD::MetadataStreamer> HSAMetadataStream;
MCCodeEmitter *DumpCodeInstEmitter = nullptr;
uint64_t getFunctionCodeSize(const MachineFunction &MF) const;
void getSIProgramInfo(SIProgramInfo &Out, const MachineFunction &MF);
void getAmdKernelCode(amd_kernel_code_t &Out, const SIProgramInfo &KernelInfo,
const MachineFunction &MF) const;
/// Emit register usage information so that the GPU driver
/// can correctly setup the GPU state.
void EmitProgramInfoSI(const MachineFunction &MF,
const SIProgramInfo &KernelInfo);
void EmitPALMetadata(const MachineFunction &MF,
const SIProgramInfo &KernelInfo);
void emitPALFunctionMetadata(const MachineFunction &MF);
void emitCommonFunctionComments(uint32_t NumVGPR,
std::optional<uint32_t> NumAGPR,
uint32_t TotalNumVGPR, uint32_t NumSGPR,
uint64_t ScratchSize, uint64_t CodeSize,
const AMDGPUMachineFunction *MFI);
void emitResourceUsageRemarks(const MachineFunction &MF,
const SIProgramInfo &CurrentProgramInfo,
bool isModuleEntryFunction, bool hasMAIInsts);
uint16_t getAmdhsaKernelCodeProperties(
const MachineFunction &MF) const;
amdhsa::kernel_descriptor_t getAmdhsaKernelDescriptor(
const MachineFunction &MF,
const SIProgramInfo &PI) const;
void initTargetStreamer(Module &M);
public:
explicit AMDGPUAsmPrinter(TargetMachine &TM,
std::unique_ptr<MCStreamer> Streamer);
StringRef getPassName() const override;
const MCSubtargetInfo* getGlobalSTI() const;
AMDGPUTargetStreamer* getTargetStreamer() const;
bool doInitialization(Module &M) override;
bool doFinalization(Module &M) override;
bool runOnMachineFunction(MachineFunction &MF) override;
/// Wrapper for MCInstLowering.lowerOperand() for the tblgen'erated
/// pseudo lowering.
bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp) const;
/// Lower the specified LLVM Constant to an MCExpr.
/// The AsmPrinter::lowerConstantof does not know how to lower
/// addrspacecast, therefore they should be lowered by this function.
const MCExpr *lowerConstant(const Constant *CV) override;
/// tblgen'erated driver function for lowering simple MI->MC pseudo
/// instructions.
bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
const MachineInstr *MI);
/// Implemented in AMDGPUMCInstLower.cpp
void emitInstruction(const MachineInstr *MI) override;
void emitFunctionBodyStart() override;
void emitFunctionBodyEnd() override;
void emitFunctionEntryLabel() override;
void emitBasicBlockStart(const MachineBasicBlock &MBB) override;
void emitGlobalVariable(const GlobalVariable *GV) override;
void emitStartOfAsmFile(Module &M) override;
void emitEndOfAsmFile(Module &M) override;
bool isBlockOnlyReachableByFallthrough(
const MachineBasicBlock *MBB) const override;
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
const char *ExtraCode, raw_ostream &O) override;
protected:
void getAnalysisUsage(AnalysisUsage &AU) const override;
std::vector<std::string> DisasmLines, HexLines;
size_t DisasmLineMaxLen;
bool IsTargetStreamerInitialized;
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H
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