llvm/llvm/lib/Target/AMDGPU/R600TargetMachine.cpp

//===-- R600TargetMachine.cpp - TargetMachine for hw codegen targets-------===//
//
// 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
/// This file contains both AMDGPU-R600 target machine and the CodeGen pass
/// builder. The target machine contains all of the hardware specific
/// information needed to emit code for R600 GPUs and the CodeGen pass builder
/// handles the pass pipeline for new pass manager.
//
//===----------------------------------------------------------------------===//

#include "R600TargetMachine.h"
#include "R600.h"
#include "R600MachineFunctionInfo.h"
#include "R600MachineScheduler.h"
#include "R600TargetTransformInfo.h"
#include "llvm/Transforms/Scalar.h"
#include <optional>

usingnamespacellvm;

static cl::opt<bool>
    EnableR600StructurizeCFG("r600-ir-structurize",
                             cl::desc("Use StructurizeCFG IR pass"),
                             cl::init(true));

static cl::opt<bool> EnableR600IfConvert("r600-if-convert",
                                         cl::desc("Use if conversion pass"),
                                         cl::ReallyHidden, cl::init(true));

static cl::opt<bool, true> EnableAMDGPUFunctionCallsOpt(
    "amdgpu-function-calls", cl::desc("Enable AMDGPU function call support"),
    cl::location(AMDGPUTargetMachine::EnableFunctionCalls), cl::init(true),
    cl::Hidden);

static ScheduleDAGInstrs *createR600MachineScheduler(MachineSchedContext *C) { … }

static MachineSchedRegistry R600SchedRegistry("r600",
                                              "Run R600's custom scheduler",
                                              createR600MachineScheduler);

//===----------------------------------------------------------------------===//
// R600 Target Machine (R600 -> Cayman)
//===----------------------------------------------------------------------===//

R600TargetMachine::R600TargetMachine(const Target &T, const Triple &TT,
                                     StringRef CPU, StringRef FS,
                                     const TargetOptions &Options,
                                     std::optional<Reloc::Model> RM,
                                     std::optional<CodeModel::Model> CM,
                                     CodeGenOptLevel OL, bool JIT)
    : … { … }

const TargetSubtargetInfo *
R600TargetMachine::getSubtargetImpl(const Function &F) const { … }

TargetTransformInfo
R600TargetMachine::getTargetTransformInfo(const Function &F) const { … }

namespace {
class R600PassConfig final : public AMDGPUPassConfig { … };
} // namespace

//===----------------------------------------------------------------------===//
// R600 Pass Setup
//===----------------------------------------------------------------------===//

bool R600PassConfig::addPreISel() { … }

bool R600PassConfig::addInstSelector() { … }

void R600PassConfig::addPreRegAlloc() { … }

void R600PassConfig::addPreSched2() { … }

void R600PassConfig::addPreEmitPass() { … }

TargetPassConfig *R600TargetMachine::createPassConfig(PassManagerBase &PM) { … }

Error R600TargetMachine::buildCodeGenPipeline(
    ModulePassManager &MPM, raw_pwrite_stream &Out, raw_pwrite_stream *DwoOut,
    CodeGenFileType FileType, const CGPassBuilderOption &Opts,
    PassInstrumentationCallbacks *PIC) { … }

MachineFunctionInfo *R600TargetMachine::createMachineFunctionInfo(
    BumpPtrAllocator &Allocator, const Function &F,
    const TargetSubtargetInfo *STI) const { … }

//===----------------------------------------------------------------------===//
// R600 CodeGen Pass Builder interface.
//===----------------------------------------------------------------------===//

R600CodeGenPassBuilder::R600CodeGenPassBuilder(
    R600TargetMachine &TM, const CGPassBuilderOption &Opts,
    PassInstrumentationCallbacks *PIC)
    : … { … }

void R600CodeGenPassBuilder::addPreISel(AddIRPass &addPass) const { … }

void R600CodeGenPassBuilder::addAsmPrinter(AddMachinePass &addPass,
                                           CreateMCStreamer) const { … }

Error R600CodeGenPassBuilder::addInstSelector(AddMachinePass &) const { … }