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//===-- AMDGPUAsmPrinter.h - Print AMDGPU assembly code ---------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// \file
/// \brief AMDGPU Assembly printer class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H
#define LLVM_LIB_TARGET_AMDGPU_AMDGPUASMPRINTER_H
#include "llvm/CodeGen/AsmPrinter.h"
#include <vector>
namespace llvm {
class AMDGPUAsmPrinter final : public AsmPrinter {
private:
struct SIProgramInfo {
SIProgramInfo() :
VGPRBlocks(0),
SGPRBlocks(0),
Priority(0),
FloatMode(0),
Priv(0),
DX10Clamp(0),
DebugMode(0),
IEEEMode(0),
ScratchSize(0),
ComputePGMRSrc1(0),
LDSBlocks(0),
ScratchBlocks(0),
ComputePGMRSrc2(0),
NumVGPR(0),
NumSGPR(0),
FlatUsed(false),
ReservedVGPRFirst(0),
ReservedVGPRCount(0),
DebuggerWavefrontPrivateSegmentOffsetSGPR((uint16_t)-1),
DebuggerPrivateSegmentBufferSGPR((uint16_t)-1),
VCCUsed(false),
CodeLen(0) {}
// Fields set in PGM_RSRC1 pm4 packet.
uint32_t VGPRBlocks;
uint32_t SGPRBlocks;
uint32_t Priority;
uint32_t FloatMode;
uint32_t Priv;
uint32_t DX10Clamp;
uint32_t DebugMode;
uint32_t IEEEMode;
uint32_t ScratchSize;
uint64_t ComputePGMRSrc1;
// Fields set in PGM_RSRC2 pm4 packet.
uint32_t LDSBlocks;
uint32_t ScratchBlocks;
uint64_t ComputePGMRSrc2;
uint32_t NumVGPR;
uint32_t NumSGPR;
uint32_t LDSSize;
bool FlatUsed;
// If ReservedVGPRCount is 0 then must be 0. Otherwise, this is the first
// fixed VGPR number reserved.
uint16_t ReservedVGPRFirst;
// The number of consecutive VGPRs reserved.
uint16_t ReservedVGPRCount;
// Fixed SGPR number used to hold wave scratch offset for entire kernel
// execution, or uint16_t(-1) if the register is not used or not known.
uint16_t DebuggerWavefrontPrivateSegmentOffsetSGPR;
// Fixed SGPR number of the first 4 SGPRs used to hold scratch V# for entire
// kernel execution, or uint16_t(-1) if the register is not used or not
// known.
uint16_t DebuggerPrivateSegmentBufferSGPR;
// Bonus information for debugging.
bool VCCUsed;
uint64_t CodeLen;
};
void getSIProgramInfo(SIProgramInfo &Out, const MachineFunction &MF) const;
void findNumUsedRegistersSI(const MachineFunction &MF,
unsigned &NumSGPR,
unsigned &NumVGPR) const;
/// \brief Emit register usage information so that the GPU driver
/// can correctly setup the GPU state.
void EmitProgramInfoR600(const MachineFunction &MF);
void EmitProgramInfoSI(const MachineFunction &MF, const SIProgramInfo &KernelInfo);
void EmitAmdKernelCodeT(const MachineFunction &MF,
const SIProgramInfo &KernelInfo) const;
public:
explicit AMDGPUAsmPrinter(TargetMachine &TM,
std::unique_ptr<MCStreamer> Streamer);
bool runOnMachineFunction(MachineFunction &MF) override;
const char *getPassName() const override {
return "AMDGPU Assembly Printer";
}
/// Implemented in AMDGPUMCInstLower.cpp
void EmitInstruction(const MachineInstr *MI) override;
void EmitFunctionBodyStart() override;
void EmitFunctionEntryLabel() override;
void EmitGlobalVariable(const GlobalVariable *GV) override;
void EmitStartOfAsmFile(Module &M) override;
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode,
raw_ostream &O) override;
void emitStartOfRuntimeMetadata(const Module &M);
void emitRuntimeMetadata(const Function &F);
protected:
std::vector<std::string> DisasmLines, HexLines;
size_t DisasmLineMaxLen;
};
} // End anonymous llvm
#endif
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