| 1 | //===- TestTraits.cpp - Test trait folding --------------------------------===// |
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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 | #include "TestOps.h" |
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| 10 | #include "mlir/Pass/Pass.h" |
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| 11 | #include "mlir/Transforms/GreedyPatternRewriteDriver.h" |
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| 12 | |
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| 13 | using namespace mlir; |
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| 14 | using namespace test; |
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| 15 | |
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| 16 | //===----------------------------------------------------------------------===// |
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| 17 | // Trait Folder. |
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| 18 | //===----------------------------------------------------------------------===// |
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| 19 | |
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| 20 | OpFoldResult TestInvolutionTraitFailingOperationFolderOp::fold( |
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| 21 | FoldAdaptor adaptor) { |
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| 22 | // This failure should cause the trait fold to run instead. |
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| 23 | return {}; |
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| 24 | } |
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| 25 | |
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| 26 | OpFoldResult TestInvolutionTraitSuccesfulOperationFolderOp::fold( |
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| 27 | FoldAdaptor adaptor) { |
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| 28 | auto argumentOp = getOperand(); |
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| 29 | // The success case should cause the trait fold to be supressed. |
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| 30 | return argumentOp.getDefiningOp() ? argumentOp : OpFoldResult{}; |
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| 31 | } |
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| 32 | |
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| 33 | namespace { |
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| 34 | struct TestTraitFolder |
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| 35 | : public PassWrapper<TestTraitFolder, OperationPass<func::FuncOp>> { |
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| 36 | MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestTraitFolder) |
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| 37 | |
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| 38 | StringRef getArgument() const final { return "test-trait-folder" ; } |
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| 39 | StringRef getDescription() const final { return "Run trait folding" ; } |
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| 40 | void runOnOperation() override { |
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| 41 | (void)applyPatternsAndFoldGreedily(getOperation(), |
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| 42 | RewritePatternSet(&getContext())); |
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| 43 | } |
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| 44 | }; |
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| 45 | } // namespace |
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| 46 | |
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| 47 | namespace mlir { |
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| 48 | void registerTestTraitsPass() { PassRegistration<TestTraitFolder>(); } |
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| 49 | } // namespace mlir |
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| 50 | |
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