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SystemZ needs to do its scheduling after branch relaxation, which can only happen after block placement, and therefore the standard PostRAScheduler point in the pass sequence is too early. TargetMachine::targetSchedulesPostRAScheduling() is a new method that signals on returning true that target will insert the final scheduling pass on its own. Reviewed by Hal Finkel git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255234 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
//==- SystemZTargetMachine.h - Define TargetMachine for SystemZ ---*- 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 SystemZ specific subclass of TargetMachine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETMACHINE_H
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#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETMACHINE_H
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#include "SystemZSubtarget.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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class TargetFrameLowering;
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class SystemZTargetMachine : public LLVMTargetMachine {
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std::unique_ptr<TargetLoweringObjectFile> TLOF;
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SystemZSubtarget Subtarget;
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public:
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SystemZTargetMachine(const Target &T, const Triple &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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~SystemZTargetMachine() override;
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const SystemZSubtarget *getSubtargetImpl() const { return &Subtarget; }
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const SystemZSubtarget *getSubtargetImpl(const Function &) const override {
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return &Subtarget;
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}
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// Override LLVMTargetMachine
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TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
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TargetIRAnalysis getTargetIRAnalysis() 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 targetSchedulesPostRAScheduling() const override { return true; };
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};
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} // end namespace llvm
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#endif
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