43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
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//===- llvm/CodeGen/Spiller.h - Spiller -------------------------*- 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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#ifndef LLVM_LIB_CODEGEN_SPILLER_H
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#define LLVM_LIB_CODEGEN_SPILLER_H
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namespace llvm {
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class LiveRangeEdit;
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class MachineFunction;
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class MachineFunctionPass;
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class VirtRegMap;
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/// Spiller interface.
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///
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/// Implementations are utility classes which insert spill or remat code on
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/// demand.
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class Spiller {
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virtual void anchor();
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public:
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virtual ~Spiller() = 0;
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/// spill - Spill the LRE.getParent() live interval.
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virtual void spill(LiveRangeEdit &LRE) = 0;
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virtual void postOptimization() {}
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};
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/// Create and return a spiller that will insert spill code directly instead
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/// of deferring though VirtRegMap.
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Spiller *createInlineSpiller(MachineFunctionPass &pass, MachineFunction &mf,
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VirtRegMap &vrm);
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} // end namespace llvm
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#endif // LLVM_LIB_CODEGEN_SPILLER_H
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