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File indexing completed on 2026-05-10 08:43:34
0001 //===- ScheduleDAGMutation.h - MachineInstr Scheduling ----------*- C++ -*-===// 0002 // 0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 0004 // See https://llvm.org/LICENSE.txt for license information. 0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 0006 // 0007 //===----------------------------------------------------------------------===// 0008 // 0009 // This file implements the ScheduleDAGMutation class, which represents 0010 // a target-specific mutation of the dependency graph for scheduling. 0011 // 0012 //===----------------------------------------------------------------------===// 0013 0014 #ifndef LLVM_CODEGEN_SCHEDULEDAGMUTATION_H 0015 #define LLVM_CODEGEN_SCHEDULEDAGMUTATION_H 0016 0017 namespace llvm { 0018 0019 class ScheduleDAGInstrs; 0020 0021 /// Mutate the DAG as a postpass after normal DAG building. 0022 class ScheduleDAGMutation { 0023 virtual void anchor(); 0024 0025 public: 0026 virtual ~ScheduleDAGMutation() = default; 0027 0028 virtual void apply(ScheduleDAGInstrs *DAG) = 0; 0029 }; 0030 0031 } // end namespace llvm 0032 0033 #endif // LLVM_CODEGEN_SCHEDULEDAGMUTATION_H
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