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TargetIRAnalysis access path directly rather than implementing getTTI. This even removes getTTI from the interface. It's more efficient for each target to just register a precise callback that creates their specific TTI. As part of this, all of the targets which are building their subtargets individually per-function now build their TTI instance with the function and thus look up the correct subtarget and cache it. NVPTX, R600, and XCore currently don't leverage this functionality, but its trivial for them to add it now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227735 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- 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 X86 specific subclass of TargetMachine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
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#define LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
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#include "X86InstrInfo.h"
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#include "X86Subtarget.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 StringRef;
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class X86TargetMachine final : public LLVMTargetMachine {
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std::unique_ptr<TargetLoweringObjectFile> TLOF;
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// Calculates type size & alignment
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const DataLayout DL;
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X86Subtarget Subtarget;
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mutable StringMap<std::unique_ptr<X86Subtarget>> SubtargetMap;
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public:
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X86TargetMachine(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);
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~X86TargetMachine() override;
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const DataLayout *getDataLayout() const override { return &DL; }
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const X86Subtarget *getSubtargetImpl() const override { return &Subtarget; }
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const X86Subtarget *getSubtargetImpl(const Function &F) const override;
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TargetIRAnalysis getTargetIRAnalysis() override;
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// Set up the pass pipeline.
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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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} // End llvm namespace
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#endif
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