| //===- GreedyPatternRewriteDriver.h - Greedy Pattern Driver -----*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file declares methods for applying a set of patterns greedily, choosing |
| // the patterns with the highest local benefit, until a fixed point is reached. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef MLIR_TRANSFORMS_GREEDYPATTERNREWRITEDRIVER_H_ |
| #define MLIR_TRANSFORMS_GREEDYPATTERNREWRITEDRIVER_H_ |
| |
| #include "mlir/Rewrite/FrozenRewritePatternList.h" |
| |
| namespace mlir { |
| |
| //===----------------------------------------------------------------------===// |
| // applyPatternsGreedily |
| //===----------------------------------------------------------------------===// |
| |
| /// Rewrite the regions of the specified operation, which must be isolated from |
| /// above, by repeatedly applying the highest benefit patterns in a greedy |
| /// work-list driven manner. Return success if no more patterns can be matched |
| /// in the result operation regions. |
| /// Note: This does not apply patterns to the top-level operation itself. Note: |
| /// These methods also perform folding and simple dead-code elimination |
| /// before attempting to match any of the provided patterns. |
| /// |
| LogicalResult |
| applyPatternsAndFoldGreedily(Operation *op, |
| const FrozenRewritePatternList &patterns); |
| /// Rewrite the given regions, which must be isolated from above. |
| LogicalResult |
| applyPatternsAndFoldGreedily(MutableArrayRef<Region> regions, |
| const FrozenRewritePatternList &patterns); |
| |
| /// Applies the specified patterns on `op` alone while also trying to fold it, |
| /// by selecting the highest benefits patterns in a greedy manner. Returns |
| /// success if no more patterns can be matched. `erased` is set to true if `op` |
| /// was folded away or erased as a result of becoming dead. Note: This does not |
| /// apply any patterns recursively to the regions of `op`. |
| LogicalResult applyOpPatternsAndFold(Operation *op, |
| const FrozenRewritePatternList &patterns, |
| bool *erased = nullptr); |
| |
| } // end namespace mlir |
| |
| #endif // MLIR_TRANSFORMS_GREEDYPATTERNREWRITEDRIVER_H_ |
