| 1 | //===- CSE.h - Common Subexpression Elimination -----------------*- 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 | // This file declares methods for eliminating common subexpressions. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #ifndef MLIR_TRANSFORMS_CSE_H_ |
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| 14 | #define MLIR_TRANSFORMS_CSE_H_ |
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| 15 | |
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| 16 | namespace mlir { |
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| 17 | |
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| 18 | class DominanceInfo; |
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| 19 | class Operation; |
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| 20 | class RewriterBase; |
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| 21 | |
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| 22 | /// Eliminate common subexpressions within the given operation. This transform |
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| 23 | /// looks for and deduplicates equivalent operations. |
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| 24 | /// |
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| 25 | /// `changed` indicates whether the IR was modified or not. |
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| 26 | void eliminateCommonSubExpressions(RewriterBase &rewriter, |
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| 27 | DominanceInfo &domInfo, Operation *op, |
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| 28 | bool *changed = nullptr); |
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| 29 | |
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| 30 | } // namespace mlir |
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| 31 | |
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| 32 | #endif // MLIR_TRANSFORMS_CSE_H_ |
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| 33 | |
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