Files
llvm/mlir/lib/Reducer/Tester.cpp
Mauricio Sifontes 27d0e14da9 Create Reduction Tree Pass
Implement the Reduction Tree Pass framework as part of the MLIR Reduce tool. This is a parametarizable pass that allows for the implementation of custom reductions passes in the tool.
Implement the FunctionReducer class as an example of a Reducer class parameter for the instantiation of a Reduction Tree Pass.
Create a pass pipeline with a Reduction Tree Pass with the FunctionReducer class specified as parameter.

Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D83969
2020-08-07 23:17:31 +00:00

51 lines
1.6 KiB
C++

//===- Tester.cpp ---------------------------------------------------------===//
//
// 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 defines the Tester class used in the MLIR Reduce tool.
//
// A Tester object is passed as an argument to the reduction passes and it is
// used to run the interestigness testing script on the different generated
// reduced variants of the test case.
//
//===----------------------------------------------------------------------===//
#include "mlir/Reducer/Tester.h"
using namespace mlir;
Tester::Tester(StringRef scriptName, ArrayRef<std::string> scriptArgs)
: testScript(scriptName), testScriptArgs(scriptArgs) {}
/// Runs the interestingness testing script on a MLIR test case file. Returns
/// true if the interesting behavior is present in the test case or false
/// otherwise.
bool Tester::isInteresting(StringRef testCase) const {
std::vector<StringRef> testerArgs;
testerArgs.push_back(testCase);
for (const std::string &arg : testScriptArgs)
testerArgs.push_back(arg);
testerArgs.push_back(testCase);
std::string errMsg;
int result = llvm::sys::ExecuteAndWait(
testScript, testerArgs, /*Env=*/None, /*Redirects=*/None,
/*SecondsToWait=*/0, /*MemoryLimit=*/0, &errMsg);
if (result < 0)
llvm::report_fatal_error("Error running interestingness test: " + errMsg,
false);
if (!result)
return false;
return true;
}