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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53886 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
//===- lto-bugpoing.cpp - The lto-bugpoint driver -------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// lto-bugpoint tool identifies minmal set of bitcode files that is causing
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// failure when Link Time Optimization is enabled. The failure is identified
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// using developer provided validation script.
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//
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//===----------------------------------------------------------------------===//
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#include "LTOBugPoint.h"
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#include <iostream>
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#include <fstream>
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int main(int argc, char **argv) {
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try {
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if (argc != 4) {
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std::cerr << "Invalid number of lto-bugpoint arguments!\n";
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return 1;
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}
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std::ios::openmode input_mode = std::ios::in;
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// First argument is linker command line options file. This text file
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// is a list of linker command line options, one option per line.
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// First line always list the absolute path to invoke the linker.
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std::istream *LinkerArgsFile = new std::ifstream(argv[1], input_mode);
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if (!LinkerArgsFile->good()) {
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std::cerr << argv[0] << ": error opening " << argv[1] << "!\n";
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return 1;
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}
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// Second argment is a text file that includes the linker input
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// file paths, one input file path per line.
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std::istream *LinkerInputsFile = new std::ifstream(argv[2], input_mode);
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if (!LinkerInputsFile->good()) {
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std::cerr << argv[0] << ": error opening " << argv[2] << "!\n";
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delete LinkerArgsFile;
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return 1;
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}
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// Third argument is absolute path to the validation script. This
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// script is used to validate LTO error under investigation.
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std::string ValidationScript = argv[3];
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LTOBugPoint bugFinder(*LinkerArgsFile, *LinkerInputsFile);
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llvm::SmallVector<std::string, 4> TroubleMakers;
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if (!bugFinder.findTroubleMakers(TroubleMakers, ValidationScript)) {
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std::cerr << "lto-bugpoint:" << bugFinder.getErrMsg() << "\n";
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return 1;
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}
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return 0;
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} catch (const std::string& msg) {
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std::cerr << argv[0] << ": " << msg << "\n";
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} catch (...) {
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std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
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}
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return 1;
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}
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