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Current Path: /usr/src/contrib/llvm-project/llvm/lib/Target/RISCV

usr / src / contrib / llvm-project / llvm / lib / Target / RISCV /

📁 ..
📁 AsmParser
📁 Disassembler
📁 MCTargetDesc
📄 RISCV.h(1.82 KB)
📄 RISCV.td(10.89 KB)
📄 RISCVAsmPrinter.cpp(6.86 KB)
📄 RISCVCallLowering.cpp(1.48 KB)
📄 RISCVCallLowering.h(1.37 KB)
📄 RISCVCallingConv.td(2.27 KB)
📄 RISCVExpandAtomicPseudoInsts.cpp(21.27 KB)
📄 RISCVExpandPseudoInsts.cpp(6.94 KB)
📄 RISCVFrameLowering.cpp(28.44 KB)
📄 RISCVFrameLowering.h(3.1 KB)
📄 RISCVISelDAGToDAG.cpp(22.01 KB)
📄 RISCVISelDAGToDAG.h(2.21 KB)
📄 RISCVISelLowering.cpp(114.94 KB)
📄 RISCVISelLowering.h(10.3 KB)
📄 RISCVInstrFormats.td(10.36 KB)
📄 RISCVInstrFormatsC.td(4.98 KB)
📄 RISCVInstrFormatsV.td(7.57 KB)
📄 RISCVInstrInfo.cpp(26.69 KB)
📄 RISCVInstrInfo.h(5.88 KB)
📄 RISCVInstrInfo.td(45.57 KB)
📄 RISCVInstrInfoA.td(17.37 KB)
📄 RISCVInstrInfoB.td(47.16 KB)
📄 RISCVInstrInfoC.td(33.8 KB)
📄 RISCVInstrInfoD.td(15.36 KB)
📄 RISCVInstrInfoF.td(17.58 KB)
📄 RISCVInstrInfoM.td(4.17 KB)
📄 RISCVInstrInfoV.td(36.31 KB)
📄 RISCVInstructionSelector.cpp(3.18 KB)
📄 RISCVLegalizerInfo.cpp(870 B)
📄 RISCVLegalizerInfo.h(1000 B)
📄 RISCVMCInstLower.cpp(4.3 KB)
📄 RISCVMachineFunctionInfo.h(2.43 KB)
📄 RISCVMergeBaseOffset.cpp(11.06 KB)
📄 RISCVRegisterBankInfo.cpp(1.04 KB)
📄 RISCVRegisterBankInfo.h(1.22 KB)
📄 RISCVRegisterBanks.td(537 B)
📄 RISCVRegisterInfo.cpp(7.31 KB)
📄 RISCVRegisterInfo.h(2.11 KB)
📄 RISCVRegisterInfo.td(12.85 KB)
📄 RISCVSchedRocket32.td(8.04 KB)
📄 RISCVSchedRocket64.td(8.24 KB)
📄 RISCVSchedule.td(7.34 KB)
📄 RISCVSubtarget.cpp(2.63 KB)
📄 RISCVSubtarget.h(5.37 KB)
📄 RISCVSystemOperands.td(11.83 KB)
📄 RISCVTargetMachine.cpp(6.17 KB)
📄 RISCVTargetMachine.h(1.81 KB)
📄 RISCVTargetObjectFile.cpp(4.13 KB)
📄 RISCVTargetObjectFile.h(1.66 KB)
📄 RISCVTargetTransformInfo.cpp(3.06 KB)
📄 RISCVTargetTransformInfo.h(2.02 KB)
📁 TargetInfo
📁 Utils

Editing: RISCVTargetMachine.cpp

//===-- RISCVTargetMachine.cpp - Define TargetMachine for RISCV -----------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Implements the info about RISCV target spec.
//
//===----------------------------------------------------------------------===//

#include "RISCVTargetMachine.h"
#include "RISCV.h"
#include "RISCVTargetObjectFile.h"
#include "RISCVTargetTransformInfo.h"
#include "TargetInfo/RISCVTargetInfo.h"
#include "Utils/RISCVBaseInfo.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/GlobalISel/IRTranslator.h"
#include "llvm/CodeGen/GlobalISel/InstructionSelect.h"
#include "llvm/CodeGen/GlobalISel/Legalizer.h"
#include "llvm/CodeGen/GlobalISel/RegBankSelect.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/InitializePasses.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Target/TargetOptions.h"
using namespace llvm;

extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeRISCVTarget() {
  RegisterTargetMachine<RISCVTargetMachine> X(getTheRISCV32Target());
  RegisterTargetMachine<RISCVTargetMachine> Y(getTheRISCV64Target());
  auto PR = PassRegistry::getPassRegistry();
  initializeGlobalISel(*PR);
  initializeRISCVExpandPseudoPass(*PR);
}

static StringRef computeDataLayout(const Triple &TT) {
  if (TT.isArch64Bit()) {
    return "e-m:e-p:64:64-i64:64-i128:128-n64-S128";
  } else {
    assert(TT.isArch32Bit() && "only RV32 and RV64 are currently supported");
    return "e-m:e-p:32:32-i64:64-n32-S128";
  }
}

static Reloc::Model getEffectiveRelocModel(const Triple &TT,
                                           Optional<Reloc::Model> RM) {
  if (!RM.hasValue())
    return Reloc::Static;
  return *RM;
}

RISCVTargetMachine::RISCVTargetMachine(const Target &T, const Triple &TT,
                                       StringRef CPU, StringRef FS,
                                       const TargetOptions &Options,
                                       Optional<Reloc::Model> RM,
                                       Optional<CodeModel::Model> CM,
                                       CodeGenOpt::Level OL, bool JIT)
    : LLVMTargetMachine(T, computeDataLayout(TT), TT, CPU, FS, Options,
                        getEffectiveRelocModel(TT, RM),
                        getEffectiveCodeModel(CM, CodeModel::Small), OL),
      TLOF(std::make_unique<RISCVELFTargetObjectFile>()) {
  initAsmInfo();

// RISC-V supports the MachineOutliner.
  setMachineOutliner(true);
}

const RISCVSubtarget *
RISCVTargetMachine::getSubtargetImpl(const Function &F) const {
  Attribute CPUAttr = F.getFnAttribute("target-cpu");
  Attribute FSAttr = F.getFnAttribute("target-features");

std::string CPU = !CPUAttr.hasAttribute(Attribute::None)
                        ? CPUAttr.getValueAsString().str()
                        : TargetCPU;
  std::string FS = !FSAttr.hasAttribute(Attribute::None)
                       ? FSAttr.getValueAsString().str()
                       : TargetFS;
  std::string Key = CPU + FS;
  auto &I = SubtargetMap[Key];
  if (!I) {
    // This needs to be done before we create a new subtarget since any
    // creation will depend on the TM and the code generation flags on the
    // function that reside in TargetOptions.
    resetTargetOptions(F);
    auto ABIName = Options.MCOptions.getABIName();
    if (const MDString *ModuleTargetABI = dyn_cast_or_null<MDString>(
            F.getParent()->getModuleFlag("target-abi"))) {
      auto TargetABI = RISCVABI::getTargetABI(ABIName);
      if (TargetABI != RISCVABI::ABI_Unknown &&
          ModuleTargetABI->getString() != ABIName) {
        report_fatal_error("-target-abi option != target-abi module flag");
      }
      ABIName = ModuleTargetABI->getString();
    }
    I = std::make_unique<RISCVSubtarget>(TargetTriple, CPU, FS, ABIName, *this);
  }
  return I.get();
}

TargetTransformInfo
RISCVTargetMachine::getTargetTransformInfo(const Function &F) {
  return TargetTransformInfo(RISCVTTIImpl(this, F));
}

namespace {
class RISCVPassConfig : public TargetPassConfig {
public:
  RISCVPassConfig(RISCVTargetMachine &TM, PassManagerBase &PM)
      : TargetPassConfig(TM, PM) {}

RISCVTargetMachine &getRISCVTargetMachine() const {
    return getTM<RISCVTargetMachine>();
  }

void addIRPasses() override;
  bool addInstSelector() override;
  bool addIRTranslator() override;
  bool addLegalizeMachineIR() override;
  bool addRegBankSelect() override;
  bool addGlobalInstructionSelect() override;
  void addPreEmitPass() override;
  void addPreEmitPass2() override;
  void addPreSched2() override;
  void addPreRegAlloc() override;
};
}

TargetPassConfig *RISCVTargetMachine::createPassConfig(PassManagerBase &PM) {
  return new RISCVPassConfig(*this, PM);
}

void RISCVPassConfig::addIRPasses() {
  addPass(createAtomicExpandPass());
  TargetPassConfig::addIRPasses();
}

bool RISCVPassConfig::addInstSelector() {
  addPass(createRISCVISelDag(getRISCVTargetMachine()));

return false;
}

bool RISCVPassConfig::addIRTranslator() {
  addPass(new IRTranslator());
  return false;
}

bool RISCVPassConfig::addLegalizeMachineIR() {
  addPass(new Legalizer());
  return false;
}

bool RISCVPassConfig::addRegBankSelect() {
  addPass(new RegBankSelect());
  return false;
}

bool RISCVPassConfig::addGlobalInstructionSelect() {
  addPass(new InstructionSelect());
  return false;
}

void RISCVPassConfig::addPreSched2() {}

void RISCVPassConfig::addPreEmitPass() { addPass(&BranchRelaxationPassID); }

void RISCVPassConfig::addPreEmitPass2() {
  addPass(createRISCVExpandPseudoPass());
  // Schedule the expansion of AMOs at the last possible moment, avoiding the
  // possibility for other passes to break the requirements for forward
  // progress in the LR/SC block.
  addPass(createRISCVExpandAtomicPseudoPass());
}

void RISCVPassConfig::addPreRegAlloc() {
  addPass(createRISCVMergeBaseOffsetOptPass());
}

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Editing: RISCVTargetMachine.cpp

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