| 1 | //===- TestReducer.cpp - Test MLIR Reduce ---------------------------------===// |
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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 a pass that reproduces errors based on trivially defined |
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| 10 | // patterns. It is used as a buggy optimization pass for the purpose of testing |
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| 11 | // the MLIR Reduce tool. |
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| 12 | // |
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| 13 | //===----------------------------------------------------------------------===// |
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| 14 | |
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| 15 | #include "mlir/Pass/Pass.h" |
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| 16 | |
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| 17 | using namespace mlir; |
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| 18 | |
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| 19 | namespace { |
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| 20 | |
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| 21 | /// This pass looks for the presence of an operation with the name |
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| 22 | /// "crashOp" in the input MLIR file and crashes the mlir-opt tool if the |
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| 23 | /// operation is found. |
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| 24 | struct TestReducer : public PassWrapper<TestReducer, OperationPass<>> { |
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| 25 | MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestReducer) |
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| 26 | |
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| 27 | StringRef getArgument() const final { return "test-mlir-reducer" ; } |
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| 28 | StringRef getDescription() const final { |
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| 29 | return "Tests MLIR Reduce tool by generating failures" ; |
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| 30 | } |
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| 31 | void runOnOperation() override; |
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| 32 | }; |
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| 33 | |
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| 34 | } // namespace |
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| 35 | |
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| 36 | void TestReducer::runOnOperation() { |
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| 37 | getOperation()->walk(callback: [&](Operation *op) { |
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| 38 | StringRef opName = op->getName().getStringRef(); |
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| 39 | |
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| 40 | if (opName.contains(Other: "op_crash" )) { |
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| 41 | llvm::errs() << "MLIR Reducer Test generated failure: Found " |
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| 42 | "\"crashOp\" operation\n" ; |
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| 43 | exit(status: 1); |
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| 44 | } |
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| 45 | }); |
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| 46 | } |
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| 47 | |
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| 48 | namespace mlir { |
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| 49 | void registerTestReducer() { PassRegistration<TestReducer>(); } |
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| 50 | } // namespace mlir |
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| 51 | |
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