mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 19:52:54 +01:00
95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
//===- bugpoint.cpp - The LLVM Bugpoint utility ---------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file 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 "ToolRunner.h"
|
|
#include "llvm/LinkAllPasses.h"
|
|
#include "llvm/Support/PassNameParser.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "llvm/Support/PluginLoader.h"
|
|
#include "llvm/System/Process.h"
|
|
#include "llvm/System/Signals.h"
|
|
#include "llvm/LinkAllVMCore.h"
|
|
#include <iostream>
|
|
using namespace llvm;
|
|
|
|
// AsChild - Specifies that this invocation of bugpoint is being generated
|
|
// from a parent process. It is not intended to be used by users so the
|
|
// option is hidden.
|
|
static cl::opt<bool>
|
|
AsChild("as-child", cl::desc("Run bugpoint as child process"),
|
|
cl::ReallyHidden);
|
|
|
|
static cl::opt<bool>
|
|
FindBugs("find-bugs", cl::desc("Run many different optimization sequences "
|
|
"on program to find bugs"), cl::init(false));
|
|
|
|
static cl::list<std::string>
|
|
InputFilenames(cl::Positional, cl::OneOrMore,
|
|
cl::desc("<input llvm ll/bc files>"));
|
|
|
|
static cl::opt<unsigned>
|
|
TimeoutValue("timeout", cl::init(300), cl::value_desc("seconds"),
|
|
cl::desc("Number of seconds program is allowed to run before it "
|
|
"is killed (default is 300s), 0 disables timeout"));
|
|
|
|
static cl::opt<unsigned>
|
|
MemoryLimit("mlimit", cl::init(100), cl::value_desc("MBytes"),
|
|
cl::desc("Maximum amount of memory to use. 0 disables check."));
|
|
|
|
// 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);
|
|
|
|
/// BugpointIsInterrupted - Set to true when the user presses ctrl-c.
|
|
bool llvm::BugpointIsInterrupted = false;
|
|
|
|
static void BugpointInterruptFunction() {
|
|
BugpointIsInterrupted = true;
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
|
|
cl::ParseCommandLineOptions(argc, argv,
|
|
"LLVM automatic testcase reducer. See\nhttp://"
|
|
"llvm.org/docs/CommandGuide/bugpoint.html"
|
|
" for more information.\n");
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
sys::SetInterruptFunction(BugpointInterruptFunction);
|
|
|
|
BugDriver D(argv[0], AsChild, FindBugs, TimeoutValue, MemoryLimit);
|
|
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, we prevent it
|
|
sys::Process::PreventCoreFiles();
|
|
|
|
try {
|
|
return D.run();
|
|
} catch (ToolExecutionError &TEE) {
|
|
std::cerr << "Tool execution error: " << TEE.what() << '\n';
|
|
} catch (const std::string& msg) {
|
|
std::cerr << argv[0] << ": " << msg << "\n";
|
|
} catch (...) {
|
|
std::cerr << "Whoops, an exception leaked out of bugpoint. "
|
|
<< "This is a bug in bugpoint!\n";
|
|
}
|
|
return 1;
|
|
}
|