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35 lines
993 B
C++
35 lines
993 B
C++
//===- ScheduleDAGMutation.h - MachineInstr Scheduling ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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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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