34 lines
1021 B
C
34 lines
1021 B
C
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//===- ScheduleDAGMutation.h - MachineInstr Scheduling ----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the ScheduleDAGMutation class, which represents
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// a target-specific mutation of the dependency graph for scheduling.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_SCHEDULEDAGMUTATION_H
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#define LLVM_CODEGEN_SCHEDULEDAGMUTATION_H
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namespace llvm {
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class ScheduleDAGInstrs;
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/// Mutate the DAG as a postpass after normal DAG building.
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class ScheduleDAGMutation {
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virtual void anchor();
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public:
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virtual ~ScheduleDAGMutation() = default;
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virtual void apply(ScheduleDAGInstrs *DAG) = 0;
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};
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} // end namespace llvm
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#endif // LLVM_CODEGEN_SCHEDULEDAGMUTATION_H
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