f279c47cb3
For each function with the AMDGPU_CS_Chain calling convention, with dynamic VGPRs enabled, add a _dvgpr$ symbol, with the value of the function symbol, plus an offset encoding one less than the number of VGPR blocks used by the function (16 VGPRs per block, no more than 128) in bits 5..3 of the symbol value. This is used by a front-end to have functions that are chained rather than called, and a dispatcher that dynamically resizes the VGPR count before dispatching to a function.
157 lines
5.1 KiB
C++
157 lines
5.1 KiB
C++
//===-- 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
|