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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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49
external/llvm/lib/Target/ARM/ARMHazardRecognizer.h vendored
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//===-- ARMHazardRecognizer.h - ARM Hazard Recognizers ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines hazard recognizers for scheduling ARM functions.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_ARM_ARMHAZARDRECOGNIZER_H
#define LLVM_LIB_TARGET_ARM_ARMHAZARDRECOGNIZER_H
#include "llvm/CodeGen/ScoreboardHazardRecognizer.h"
namespace llvm {
class ARMBaseInstrInfo;
class ARMBaseRegisterInfo;
class ARMSubtarget;
class MachineInstr;
/// ARMHazardRecognizer handles special constraints that are not expressed in
/// the scheduling itinerary. This is only used during postRA scheduling. The
/// ARM preRA scheduler uses an unspecialized instance of the
/// ScoreboardHazardRecognizer.
class ARMHazardRecognizer : public ScoreboardHazardRecognizer {
MachineInstr *LastMI;
unsigned FpMLxStalls;
public:
ARMHazardRecognizer(const InstrItineraryData *ItinData,
const ScheduleDAG *DAG)
: ScoreboardHazardRecognizer(ItinData, DAG, "post-RA-sched"),
LastMI(nullptr) {}
HazardType getHazardType(SUnit *SU, int Stalls) override;
void Reset() override;
void EmitInstruction(SUnit *SU) override;
void AdvanceCycle() override;
void RecedeCycle() override;
};
} // end namespace llvm
#endif