| //===-- RISCVTargetMachine.cpp - Define TargetMachine for RISCV -----------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Implements the info about RISCV target spec. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "RISCVTargetMachine.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/CodeGen/Passes.h" |
| #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h" |
| #include "llvm/CodeGen/TargetPassConfig.h" |
| #include "llvm/IR/LegacyPassManager.h" |
| #include "llvm/Support/FormattedStream.h" |
| #include "llvm/Support/TargetRegistry.h" |
| #include "llvm/Target/TargetOptions.h" |
| using namespace llvm; |
| |
| extern "C" void LLVMInitializeRISCVTarget() { |
| RegisterTargetMachine<RISCVTargetMachine> X(getTheRISCV32Target()); |
| RegisterTargetMachine<RISCVTargetMachine> Y(getTheRISCV64Target()); |
| } |
| |
| static std::string computeDataLayout(const Triple &TT) { |
| if (TT.isArch64Bit()) { |
| return "e-m:e-i64:64-n32:64-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, |
| CodeModel::Model CM, |
| CodeGenOpt::Level OL) |
| : LLVMTargetMachine(T, computeDataLayout(TT), TT, CPU, FS, Options, |
| getEffectiveRelocModel(TT, RM), CM, OL), |
| TLOF(make_unique<TargetLoweringObjectFileELF>()) { |
| initAsmInfo(); |
| } |
| |
| TargetPassConfig *RISCVTargetMachine::createPassConfig(PassManagerBase &PM) { |
| return new TargetPassConfig(*this, PM); |
| } |