| //=- llvm/CodeGen/MultiHazardRecognizer.h - Scheduling Support ----*- 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 implements the MultiHazardRecognizer class, which is a wrapper |
| // for a set of ScheduleHazardRecognizer instances |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CODEGEN_MULTIHAZARDRECOGNIZER_H |
| #define LLVM_CODEGEN_MULTIHAZARDRECOGNIZER_H |
| |
| #include "llvm/ADT/SmallVector.h" |
| #include "llvm/CodeGen/ScheduleHazardRecognizer.h" |
| |
| namespace llvm { |
| |
| class MachineInstr; |
| class SUnit; |
| |
| class MultiHazardRecognizer : public ScheduleHazardRecognizer { |
| SmallVector<std::unique_ptr<ScheduleHazardRecognizer>, 4> Recognizers; |
| |
| public: |
| MultiHazardRecognizer() = default; |
| void AddHazardRecognizer(std::unique_ptr<ScheduleHazardRecognizer> &&); |
| |
| bool atIssueLimit() const override; |
| HazardType getHazardType(SUnit *, int Stalls = 0) override; |
| void Reset() override; |
| void EmitInstruction(SUnit *) override; |
| void EmitInstruction(MachineInstr *) override; |
| unsigned PreEmitNoops(SUnit *) override; |
| unsigned PreEmitNoops(MachineInstr *) override; |
| bool ShouldPreferAnother(SUnit *) override; |
| void AdvanceCycle() override; |
| void RecedeCycle() override; |
| void EmitNoop() override; |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_CODEGEN_MULTIHAZARDRECOGNIZER_H |