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1937233a22
base which it adds a single analysis pass to, to instead return the type erased TargetTransformInfo object constructed for that TargetMachine. This removes all of the pass variants for TTI. There is now a single TTI *pass* in the Analysis layer. All of the Analysis <-> Target communication is through the TTI's type erased interface itself. While the diff is large here, it is nothing more that code motion to make types available in a header file for use in a different source file within each target. I've tried to keep all the doxygen comments and file boilerplate in line with this move, but let me know if I missed anything. With this in place, the next step to making TTI work with the new pass manager is to introduce a really simple new-style analysis that produces a TTI object via a callback into this routine on the target machine. Once we have that, we'll have the building blocks necessary to accept a function argument as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227685 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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TargetTransformInfo getTTI() 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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