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//===- TestReducer.cpp - Test MLIR Reduce ---------------------------------===//
//
// 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 implements a pass that reproduces errors based on trivially defined
// patterns. It is used as a buggy optimization pass for the purpose of testing
// the MLIR Reduce tool.
//
//===----------------------------------------------------------------------===//
#include "mlir/Pass/Pass.h"
using namespace mlir;
namespace {
/// This pass looks for the presence of an operation with the name
/// "crashOp" in the input MLIR file and crashes the mlir-opt tool if the
/// operation is found.
struct TestReducer : public PassWrapper<TestReducer, OperationPass<>> {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestReducer)
StringRef getArgument() const final { return "test-mlir-reducer"; }
StringRef getDescription() const final {
return "Tests MLIR Reduce tool by generating failures";
}
void runOnOperation() override;
};
} // namespace
void TestReducer::runOnOperation() {
getOperation()->walk([&](Operation *op) {
StringRef opName = op->getName().getStringRef();
if (opName.contains("op_crash")) {
llvm::errs() << "MLIR Reducer Test generated failure: Found "
"\"crashOp\" operation\n";
exit(1);
}
});
}
namespace mlir {
void registerTestReducer() { PassRegistration<TestReducer>(); }
} // namespace mlir
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