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//===- bugpoint.cpp - The LLVM Bugpoint utility ---------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This program is an automated compiler debugger tool. It is used to narrow
// down miscompilations and crash problems to a specific pass in the compiler,
// and the specific Module or Function input that is causing the problem.
//
//===----------------------------------------------------------------------===//
#include "BugDriver.h"
#include "llvm/Support/PassNameParser.h"
#include "llvm/Support/ToolRunner.h"
#include "Support/CommandLine.h"
#include "llvm/System/Signals.h"
#include "Support/PluginLoader.h"
#include "Config/unistd.h"
#include <sys/resource.h>
using namespace llvm;
static cl::list<std::string>
InputFilenames(cl::Positional, cl::OneOrMore,
cl::desc("<input llvm ll/bc files>"));
// The AnalysesList is automatically populated with registered Passes by the
// PassNameParser.
//
static cl::list<const PassInfo*, bool, PassNameParser>
PassList(cl::desc("Passes available:"), cl::ZeroOrMore);
int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv,
" LLVM automatic testcase reducer. See\nhttp://"
"llvm.cs.uiuc.edu/docs/CommandGuide/bugpoint.html"
" for more information.\n");
sys::PrintStackTraceOnErrorSignal();
BugDriver D(argv[0]);
if (D.addSources(InputFilenames)) return 1;
D.addPasses(PassList.begin(), PassList.end());
// Bugpoint has the ability of generating a plethora of core files, so to
// avoid filling up the disk, set the max core file size to 0.
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 0;
int res = setrlimit(RLIMIT_CORE, &rlim);
if (res < 0) {
// setrlimit() may have failed, but we're not going to let that stop us
perror("setrlimit: RLIMIT_CORE");
}
try {
return D.run();
} catch (ToolExecutionError &TEE) {
std::cerr << "Tool execution error: " << TEE.what() << '\n';
return 1;
} catch (...) {
std::cerr << "Whoops, an exception leaked out of bugpoint. "
<< "This is a bug in bugpoint!\n";
return 1;
}
}
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