| //===-- PPCTargetMachine.h - Define TargetMachine for PowerPC ---*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file declares the PowerPC specific subclass of TargetMachine. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H |
| #define LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H |
| |
| #include "PPCInstrInfo.h" |
| #include "PPCSubtarget.h" |
| #include "llvm/IR/DataLayout.h" |
| #include "llvm/Target/TargetMachine.h" |
| |
| namespace llvm { |
| |
| /// Common code between 32-bit and 64-bit PowerPC targets. |
| /// |
| class PPCTargetMachine final : public LLVMTargetMachine { |
| public: |
| enum PPCABI { PPC_ABI_UNKNOWN, PPC_ABI_ELFv1, PPC_ABI_ELFv2 }; |
| enum Endian { NOT_DETECTED, LITTLE, BIG }; |
| |
| private: |
| std::unique_ptr<TargetLoweringObjectFile> TLOF; |
| PPCABI TargetABI; |
| Endian Endianness = Endian::NOT_DETECTED; |
| |
| mutable StringMap<std::unique_ptr<PPCSubtarget>> SubtargetMap; |
| |
| public: |
| PPCTargetMachine(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); |
| |
| ~PPCTargetMachine() override; |
| |
| const PPCSubtarget *getSubtargetImpl(const Function &F) const override; |
| // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, |
| // subtargets are per-function entities based on the target-specific |
| // attributes of each function. |
| const PPCSubtarget *getSubtargetImpl() const = delete; |
| |
| // Pass Pipeline Configuration |
| TargetPassConfig *createPassConfig(PassManagerBase &PM) override; |
| |
| TargetTransformInfo getTargetTransformInfo(const Function &F) override; |
| |
| TargetLoweringObjectFile *getObjFileLowering() const override { |
| return TLOF.get(); |
| } |
| bool isELFv2ABI() const { return TargetABI == PPC_ABI_ELFv2; } |
| bool isPPC64() const { |
| const Triple &TT = getTargetTriple(); |
| return (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le); |
| }; |
| |
| bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override { |
| // Addrspacecasts are always noops. |
| return true; |
| } |
| |
| bool isLittleEndian() const; |
| |
| int unqualifiedInlineAsmVariant() const override { return 1; } |
| }; |
| } // end namespace llvm |
| |
| #endif |