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94c8770ed5
Summary: I don't know why every singled backend had to redeclare its own DataLayout. There was a virtual getDataLayout() on the common base TargetMachine, the default implementation returned nullptr. It was not clear from this that we could assume at call site that a DataLayout will be available with each Target. Now getDataLayout() is no longer virtual and return a pointer to the DataLayout member of the common base TargetMachine. I plan to turn it into a reference in a future patch. The only backend that didn't have a DataLayout previsouly was the CPPBackend. It now initializes the default DataLayout. This commit is NFC for all the other backends. Test Plan: clang+llvm ninja check-all Reviewers: echristo Subscribers: jfb, jholewinski, llvm-commits Differential Revision: http://reviews.llvm.org/D8243 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 231987
96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
//===-- MipsTargetMachine.h - Define TargetMachine for Mips -----*- 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 Mips specific subclass of TargetMachine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H
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#define LLVM_LIB_TARGET_MIPS_MIPSTARGETMACHINE_H
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#include "MCTargetDesc/MipsABIInfo.h"
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#include "MipsSubtarget.h"
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#include "llvm/CodeGen/BasicTTIImpl.h"
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/CodeGen/SelectionDAGISel.h"
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#include "llvm/Target/TargetFrameLowering.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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class formatted_raw_ostream;
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class MipsRegisterInfo;
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class MipsTargetMachine : public LLVMTargetMachine {
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bool isLittle;
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std::unique_ptr<TargetLoweringObjectFile> TLOF;
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// Selected ABI
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MipsABIInfo ABI;
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MipsSubtarget *Subtarget;
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MipsSubtarget DefaultSubtarget;
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MipsSubtarget NoMips16Subtarget;
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MipsSubtarget Mips16Subtarget;
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mutable StringMap<std::unique_ptr<MipsSubtarget>> SubtargetMap;
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public:
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MipsTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
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const TargetOptions &Options, Reloc::Model RM,
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CodeModel::Model CM, CodeGenOpt::Level OL, bool isLittle);
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~MipsTargetMachine() override;
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TargetIRAnalysis getTargetIRAnalysis() override;
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const MipsSubtarget *getSubtargetImpl() const override {
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if (Subtarget)
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return Subtarget;
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return &DefaultSubtarget;
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}
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const MipsSubtarget *getSubtargetImpl(const Function &F) const override;
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/// \brief Reset the subtarget for the Mips target.
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void resetSubtarget(MachineFunction *MF);
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// Pass Pipeline Configuration
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TargetPassConfig *createPassConfig(PassManagerBase &PM) 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 isLittleEndian() const { return isLittle; }
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const MipsABIInfo &getABI() const { return ABI; }
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};
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/// MipsebTargetMachine - Mips32/64 big endian target machine.
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///
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class MipsebTargetMachine : public MipsTargetMachine {
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virtual void anchor();
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public:
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MipsebTargetMachine(const Target &T, StringRef TT,
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StringRef CPU, StringRef FS, const TargetOptions &Options,
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Reloc::Model RM, CodeModel::Model CM,
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CodeGenOpt::Level OL);
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};
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/// MipselTargetMachine - Mips32/64 little endian target machine.
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///
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class MipselTargetMachine : public MipsTargetMachine {
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virtual void anchor();
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public:
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MipselTargetMachine(const Target &T, StringRef TT,
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StringRef CPU, StringRef FS, const TargetOptions &Options,
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Reloc::Model RM, CodeModel::Model CM,
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CodeGenOpt::Level OL);
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};
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} // End llvm namespace
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#endif
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