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9aafb854cc
IMHO it is an antipattern to have a enum value that is Default. At any given piece of code it is not clear if we have to handle Default or if has already been mapped to a concrete value. In this case in particular, only the target can do the mapping and it is nice to make sure it is always done. This deletes the two default enum values of CodeModel and uses an explicit Optional<CodeModel> when it is possible that it is unspecified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309911 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
//===-- PPCTargetMachine.h - Define TargetMachine for PowerPC ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the PowerPC specific subclass of TargetMachine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H
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#define LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H
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#include "PPCInstrInfo.h"
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#include "PPCSubtarget.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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/// Common code between 32-bit and 64-bit PowerPC targets.
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///
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class PPCTargetMachine final : public LLVMTargetMachine {
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public:
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enum PPCABI { PPC_ABI_UNKNOWN, PPC_ABI_ELFv1, PPC_ABI_ELFv2 };
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private:
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std::unique_ptr<TargetLoweringObjectFile> TLOF;
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PPCABI TargetABI;
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mutable StringMap<std::unique_ptr<PPCSubtarget>> SubtargetMap;
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public:
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PPCTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
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StringRef FS, const TargetOptions &Options,
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Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
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CodeGenOpt::Level OL, bool JIT);
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~PPCTargetMachine() override;
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const PPCSubtarget *getSubtargetImpl(const Function &F) const override;
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// DO NOT IMPLEMENT: There is no such thing as a valid default subtarget,
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// subtargets are per-function entities based on the target-specific
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// attributes of each function.
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const PPCSubtarget *getSubtargetImpl() const = delete;
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// Pass Pipeline Configuration
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TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
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TargetIRAnalysis getTargetIRAnalysis() override;
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TargetLoweringObjectFile *getObjFileLowering() const override {
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return TLOF.get();
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}
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bool isELFv2ABI() const { return TargetABI == PPC_ABI_ELFv2; }
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bool isPPC64() const {
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const Triple &TT = getTargetTriple();
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return (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le);
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};
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bool isMachineVerifierClean() const override {
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return false;
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}
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};
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} // end namespace llvm
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#endif
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