1 //===- TestReducer.cpp - Test MLIR Reduce ---------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements a pass that reproduces errors based on trivially defined 10 // patterns. It is used as a buggy optimization pass for the purpose of testing 11 // the MLIR Reduce tool. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #include "mlir/Pass/Pass.h" 16 17 using namespace mlir; 18 19 namespace { 20 21 /// This pass looks for the presence of an operation with the name 22 /// "crashOp" in the input MLIR file and crashes the mlir-opt tool if the 23 /// operation is found. 24 struct TestReducer : public PassWrapper<TestReducer, OperationPass<>> { MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID__anoned9bf4820111::TestReducer25 MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestReducer) 26 27 StringRef getArgument() const final { return "test-mlir-reducer"; } getDescription__anoned9bf4820111::TestReducer28 StringRef getDescription() const final { 29 return "Tests MLIR Reduce tool by generating failures"; 30 } 31 void runOnOperation() override; 32 }; 33 34 } // namespace 35 runOnOperation()36void TestReducer::runOnOperation() { 37 getOperation()->walk([&](Operation *op) { 38 StringRef opName = op->getName().getStringRef(); 39 40 if (opName.contains("op_crash")) { 41 llvm::errs() << "MLIR Reducer Test generated failure: Found " 42 "\"crashOp\" operation\n"; 43 exit(1); 44 } 45 }); 46 } 47 48 namespace mlir { registerTestReducer()49void registerTestReducer() { PassRegistration<TestReducer>(); } 50 } // namespace mlir 51