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49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
//===-- llvm/CodeGen/Spiller.h - Spiller -*- 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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#ifndef LLVM_CODEGEN_SPILLER_H
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#define LLVM_CODEGEN_SPILLER_H
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#include <vector>
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namespace llvm {
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struct LiveInterval;
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class LiveIntervals;
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class LiveStacks;
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class MachineFunction;
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class MachineInstr;
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class VirtRegMap;
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class VNInfo;
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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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public:
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virtual ~Spiller() = 0;
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/// Spill the given live range. The method used will depend on the Spiller
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/// implementation selected.
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virtual std::vector<LiveInterval*> spill(LiveInterval *li) = 0;
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/// Intra-block split.
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virtual std::vector<LiveInterval*> intraBlockSplit(LiveInterval *li,
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VNInfo *valno) = 0;
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};
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/// Create and return a spiller object, as specified on the command line.
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Spiller* createSpiller(MachineFunction *mf, LiveIntervals *li,
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LiveStacks *ls, VirtRegMap *vrm);
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}
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#endif
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