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04bcc11905
derived classes. Since global data alignment, layout, and mangling is often based on the DataLayout, move it to the TargetMachine. This ensures that global data is going to be layed out and mangled consistently if the subtarget changes on a per function basis. Prior to this all targets(*) have had subtarget dependent code moved out and onto the TargetMachine. *One target hasn't been migrated as part of this change: R600. The R600 port has, as a subtarget feature, the size of pointers and this affects global data layout. I've currently hacked in a FIXME to enable progress, but the port needs to be updated to either pass the 64-bitness to the TargetMachine, or fix the DataLayout to avoid subtarget dependent features. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227113 91177308-0d34-0410-b5e6-96231b3b80d8
84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
//==-- AArch64TargetMachine.h - Define TargetMachine for AArch64 -*- 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 AArch64 specific subclass of TargetMachine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H
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#define LLVM_LIB_TARGET_AARCH64_AARCH64TARGETMACHINE_H
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#include "AArch64InstrInfo.h"
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#include "AArch64Subtarget.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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class AArch64TargetMachine : public LLVMTargetMachine {
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protected:
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const DataLayout DL;
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std::unique_ptr<TargetLoweringObjectFile> TLOF;
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AArch64Subtarget Subtarget;
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mutable StringMap<std::unique_ptr<AArch64Subtarget>> SubtargetMap;
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public:
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AArch64TargetMachine(const Target &T, StringRef TT, StringRef CPU,
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StringRef FS, const TargetOptions &Options,
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Reloc::Model RM, CodeModel::Model CM,
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CodeGenOpt::Level OL, bool IsLittleEndian);
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~AArch64TargetMachine() override;
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const DataLayout *getDataLayout() const override { return &DL; }
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const AArch64Subtarget *getSubtargetImpl() const override {
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return &Subtarget;
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}
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const AArch64Subtarget *getSubtargetImpl(const Function &F) const override;
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// Pass Pipeline Configuration
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TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
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/// \brief Register AArch64 analysis passes with a pass manager.
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void addAnalysisPasses(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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private:
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bool isLittle;
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};
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// AArch64leTargetMachine - AArch64 little endian target machine.
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//
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class AArch64leTargetMachine : public AArch64TargetMachine {
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virtual void anchor();
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public:
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AArch64leTargetMachine(const Target &T, StringRef TT, StringRef CPU,
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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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// AArch64beTargetMachine - AArch64 big endian target machine.
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//
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class AArch64beTargetMachine : public AArch64TargetMachine {
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virtual void anchor();
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public:
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AArch64beTargetMachine(const Target &T, StringRef TT, StringRef CPU,
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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 namespace llvm
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#endif
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