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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 "AMDGPUMCResourceInfo.h"
#include "SIProgramInfo.h"
#include "llvm/CodeGen/AsmPrinter.h"
namespace llvm {
class AMDGPUMachineFunction;
class AMDGPUResourceUsageAnalysis;
class AMDGPUTargetStreamer;
class MCCodeEmitter;
class MCOperand;
class MCResourceInfo;
namespace AMDGPU {
struct MCKernelDescriptor;
struct AMDGPUMCKernelCodeT;
namespace HSAMD {
class MetadataStreamer;
}
} // namespace AMDGPU
class AMDGPUAsmPrinter final : public AsmPrinter {
public:
static char ID;
private:
unsigned CodeObjectVersion;
void initializeTargetID(const Module &M);
const AMDGPUResourceUsageAnalysisWrapperPass::FunctionResourceInfo
*ResourceUsage;
MCResourceInfo RI;
SIProgramInfo CurrentProgramInfo;
std::unique_ptr<AMDGPU::HSAMD::MetadataStreamer> HSAMetadataStream;
MCCodeEmitter *DumpCodeInstEmitter = nullptr;
// When appropriate, add a _dvgpr$ symbol.
void emitDVgprSymbol(MachineFunction &MF);
void getSIProgramInfo(SIProgramInfo &Out, const MachineFunction &MF);
void getAmdKernelCode(AMDGPU::AMDGPUMCKernelCodeT &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(const MCExpr *NumVGPR, const MCExpr *NumAGPR,
const MCExpr *TotalNumVGPR,
const MCExpr *NumSGPR,
const MCExpr *ScratchSize, uint64_t CodeSize,
const AMDGPUMachineFunction *MFI);
void emitResourceUsageRemarks(const MachineFunction &MF,
const SIProgramInfo &CurrentProgramInfo,
bool isModuleEntryFunction, bool hasMAIInsts);
const MCExpr *getAmdhsaKernelCodeProperties(const MachineFunction &MF) const;
AMDGPU::MCKernelDescriptor
getAmdhsaKernelDescriptor(const MachineFunction &MF,
const SIProgramInfo &PI) const;
void initTargetStreamer(Module &M);
SmallString<128> getMCExprStr(const MCExpr *Value);
/// Attempts to replace the validation that is missed in getSIProgramInfo due
/// to MCExpr being unknown. Invoked during doFinalization such that the
/// MCResourceInfo symbols are known.
void validateMCResourceInfo(Function &F);
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, const Constant *BaseCV,
uint64_t Offset) override;
/// tblgen'erated driver function for lowering simple MI->MC pseudo
/// instructions.
bool lowerPseudoInstExpansion(const MachineInstr *MI, MCInst &Inst);
/// Implemented in AMDGPUMCInstLower.cpp
void emitInstruction(const MachineInstr *MI) override;
void emitFunctionBodyStart() override;
void emitFunctionBodyEnd() override;
void emitImplicitDef(const MachineInstr *MI) const 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 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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