| 1 | //===- TosaLayerwiseConstantFoldPass.cpp ----------------------------------===// |
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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 implements constant folding transformations on TOSA operations |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #include "mlir/Dialect/Tosa/Transforms/Passes.h" |
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| 14 | |
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| 15 | #include "mlir/Dialect/Func/IR/FuncOps.h" |
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| 16 | #include "mlir/Dialect/Tosa/IR/TosaOps.h" |
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| 17 | #include "mlir/Pass/Pass.h" |
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| 18 | #include "mlir/Transforms/GreedyPatternRewriteDriver.h" |
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| 19 | |
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| 20 | namespace mlir { |
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| 21 | namespace tosa { |
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| 22 | #define GEN_PASS_DEF_TOSALAYERWISECONSTANTFOLDPASS |
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| 23 | #include "mlir/Dialect/Tosa/Transforms/Passes.h.inc" |
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| 24 | } // namespace tosa |
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| 25 | } // namespace mlir |
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| 26 | |
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| 27 | using namespace mlir; |
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| 28 | using namespace mlir::tosa; |
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| 29 | |
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| 30 | namespace { |
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| 31 | |
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| 32 | template <typename... Args> |
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| 33 | void addOpsCanonicalizations(MLIRContext *ctx, RewritePatternSet &patterns) { |
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| 34 | (Args::getCanonicalizationPatterns(patterns, ctx), ...); |
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| 35 | } |
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| 36 | |
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| 37 | void populateTosaOpsCanonicalizationPatterns(MLIRContext *ctx, |
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| 38 | RewritePatternSet &patterns) { |
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| 39 | addOpsCanonicalizations< |
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| 40 | #define GET_OP_LIST |
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| 41 | #include "mlir/Dialect/Tosa/IR/TosaOps.cpp.inc" |
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| 42 | >(ctx, patterns); |
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| 43 | } |
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| 44 | |
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| 45 | struct TosaLayerwiseConstantFoldPass |
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| 46 | : public tosa::impl::TosaLayerwiseConstantFoldPassBase< |
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| 47 | TosaLayerwiseConstantFoldPass> { |
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| 48 | TosaLayerwiseConstantFoldPass( |
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| 49 | const TosaLayerwiseConstantFoldPassOptions &options) |
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| 50 | : TosaLayerwiseConstantFoldPassBase(options) {} |
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| 51 | |
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| 52 | void runOnOperation() override { |
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| 53 | auto *ctx = &getContext(); |
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| 54 | RewritePatternSet patterns(ctx); |
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| 55 | auto func = getOperation(); |
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| 56 | |
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| 57 | mlir::tosa::populateTosaFoldConstantReciprocalPatterns(ctx: ctx, patterns); |
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| 58 | mlir::tosa::populateTosaFoldConstantTransposePatterns(ctx: ctx, patterns); |
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| 59 | mlir::tosa::populateTosaConstantReduction(ctx, patterns, |
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| 60 | aggressiveReduceConstant); |
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| 61 | populateTosaOpsCanonicalizationPatterns(ctx, patterns); |
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| 62 | |
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| 63 | if (applyPatternsAndFoldGreedily(func, std::move(patterns)).failed()) |
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| 64 | signalPassFailure(); |
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| 65 | } |
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| 66 | }; |
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| 67 | |
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| 68 | } // namespace |
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| 69 | |
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| 70 | std::unique_ptr<Pass> mlir::tosa::createTosaLayerwiseConstantFoldPass() { |
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| 71 | return std::make_unique<TosaLayerwiseConstantFoldPass>( |
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| 72 | TosaLayerwiseConstantFoldPassOptions{false}); |
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| 73 | } |
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| 74 | |
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| 75 | std::unique_ptr<Pass> mlir::tosa::createTosaLayerwiseConstantFoldPass( |
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| 76 | const TosaLayerwiseConstantFoldPassOptions &options) { |
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| 77 | return std::make_unique<TosaLayerwiseConstantFoldPass>(options); |
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| 78 | } |
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| 79 | |
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