| 1 | //===- llvm/CodeGen/Spiller.h - Spiller -------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef LLVM_CODEGEN_SPILLER_H |
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| 10 | #define LLVM_CODEGEN_SPILLER_H |
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| 11 | |
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| 12 | namespace llvm { |
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| 13 | |
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| 14 | class LiveRangeEdit; |
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| 15 | class MachineFunction; |
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| 16 | class MachineFunctionPass; |
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| 17 | class VirtRegMap; |
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| 18 | class VirtRegAuxInfo; |
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| 19 | |
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| 20 | /// Spiller interface. |
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| 21 | /// |
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| 22 | /// Implementations are utility classes which insert spill or remat code on |
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| 23 | /// demand. |
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| 24 | class Spiller { |
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| 25 | virtual void anchor(); |
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| 26 | |
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| 27 | public: |
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| 28 | virtual ~Spiller() = 0; |
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| 29 | |
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| 30 | /// spill - Spill the LRE.getParent() live interval. |
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| 31 | virtual void spill(LiveRangeEdit &LRE) = 0; |
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| 32 | |
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| 33 | virtual void postOptimization() {} |
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| 34 | }; |
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| 35 | |
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| 36 | /// Create and return a spiller that will insert spill code directly instead |
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| 37 | /// of deferring though VirtRegMap. |
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| 38 | Spiller *createInlineSpiller(MachineFunctionPass &Pass, MachineFunction &MF, |
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| 39 | VirtRegMap &VRM, VirtRegAuxInfo &VRAI); |
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| 40 | |
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| 41 | } // end namespace llvm |
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| 42 | |
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| 43 | #endif // LLVM_CODEGEN_SPILLER_H |
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| 44 | |
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