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Due to an erratum in some versions of LEON, we must insert a NOP after any LD or LDF instruction to ensure the processor has time to load the value correctly before using it. This pass will implement that erratum fix. The code will have no effect for other Sparc, but non-LEON processors. Differential Review: http://reviews.llvm.org/D20353 llvm-svn: 270417
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
//===-- SparcTargetMachine.h - Define TargetMachine for Sparc ---*- 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 Sparc specific subclass of TargetMachine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPARC_SPARCTARGETMACHINE_H
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#define LLVM_LIB_TARGET_SPARC_SPARCTARGETMACHINE_H
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#include "SparcInstrInfo.h"
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#include "SparcSubtarget.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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class SparcTargetMachine : public LLVMTargetMachine {
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std::unique_ptr<TargetLoweringObjectFile> TLOF;
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SparcSubtarget Subtarget;
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bool is64Bit;
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mutable StringMap<std::unique_ptr<SparcSubtarget>> SubtargetMap;
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public:
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SparcTargetMachine(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, CodeModel::Model CM,
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CodeGenOpt::Level OL, bool is64bit);
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~SparcTargetMachine() override;
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const SparcSubtarget *getSubtargetImpl() const { return &Subtarget; }
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const SparcSubtarget *getSubtargetImpl(const Function &) const override;
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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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};
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/// Sparc 32-bit target machine
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///
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class SparcV8TargetMachine : public SparcTargetMachine {
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virtual void anchor();
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public:
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SparcV8TargetMachine(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, CodeModel::Model CM,
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CodeGenOpt::Level OL);
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};
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/// Sparc 64-bit target machine
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///
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class SparcV9TargetMachine : public SparcTargetMachine {
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virtual void anchor();
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public:
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SparcV9TargetMachine(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, CodeModel::Model CM,
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CodeGenOpt::Level OL);
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};
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class SparcelTargetMachine : public SparcTargetMachine {
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virtual void anchor();
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public:
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SparcelTargetMachine(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, 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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