forked from OSchip/llvm-project
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
//===-- ARMHazardRecognizer.h - ARM Hazard Recognizers ----------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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/ScheduleHazardRecognizer.h"
|
|
|
|
namespace llvm {
|
|
|
|
// Hazards related to FP MLx instructions
|
|
class ARMHazardRecognizerFPMLx : public ScheduleHazardRecognizer {
|
|
MachineInstr *LastMI = nullptr;
|
|
unsigned FpMLxStalls = 0;
|
|
|
|
public:
|
|
ARMHazardRecognizerFPMLx() : ScheduleHazardRecognizer() { MaxLookAhead = 1; }
|
|
|
|
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
|