//===- 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 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
//===----------------------------------------------------------------------===//
#include "BugDriver.h"
+#include "ToolRunner.h"
+#include "llvm/LinkAllPasses.h"
+#include "llvm/LLVMContext.h"
#include "llvm/Support/PassNameParser.h"
-#include "llvm/Support/ToolRunner.h"
-#include "Support/CommandLine.h"
-#include "Config/unistd.h"
-#include <sys/resource.h>
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PluginLoader.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/StandardPasses.h"
+#include "llvm/System/Process.h"
+#include "llvm/System/Signals.h"
+#include "llvm/System/Valgrind.h"
+#include "llvm/LinkAllVMCore.h"
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<int>
+MemoryLimit("mlimit", cl::init(-1), cl::value_desc("MBytes"),
+ cl::desc("Maximum amount of memory to use. 0 disables check."
+ " Defaults to 100MB (800MB under valgrind)."));
+
+static cl::opt<bool>
+UseValgrind("enable-valgrind",
+ cl::desc("Run optimizations through valgrind"));
+
// The AnalysesList is automatically populated with registered Passes by the
// PassNameParser.
//
-static cl::list<const PassInfo*, bool, PassNameParser>
+static cl::list<const StaticPassInfo*, bool, PassNameParser>
PassList(cl::desc("Passes available:"), cl::ZeroOrMore);
+static cl::opt<bool>
+StandardCompileOpts("std-compile-opts",
+ cl::desc("Include the standard compile time optimizations"));
+
+static cl::opt<bool>
+StandardLinkOpts("std-link-opts",
+ cl::desc("Include the standard link time optimizations"));
+
+static cl::opt<std::string>
+OverrideTriple("mtriple", cl::desc("Override target triple for module"));
+
+/// BugpointIsInterrupted - Set to true when the user presses ctrl-c.
+bool llvm::BugpointIsInterrupted = false;
+
+static void BugpointInterruptFunction() {
+ BugpointIsInterrupted = true;
+}
+
+// Hack to capture a pass list.
+namespace {
+ class AddToDriver : public PassManager {
+ BugDriver &D;
+ public:
+ AddToDriver(BugDriver &_D) : D(_D) {}
+
+ virtual void add(Pass *P) {
+ const StaticPassInfo *PI = P->getPassInfo();
+ D.addPasses(&PI, &PI + 1);
+ }
+ };
+}
+
int main(int argc, char **argv) {
+ llvm::sys::PrintStackTraceOnErrorSignal();
+ llvm::PrettyStackTraceProgram X(argc, argv);
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
cl::ParseCommandLineOptions(argc, argv,
- " LLVM automatic testcase reducer. See\nhttp://"
- "llvm.cs.uiuc.edu/docs/CommandGuide/bugpoint.html"
+ "LLVM automatic testcase reducer. See\nhttp://"
+ "llvm.org/cmds/bugpoint.html"
" for more information.\n");
+ sys::SetInterruptFunction(BugpointInterruptFunction);
- BugDriver D(argv[0]);
+ LLVMContext& Context = getGlobalContext();
+ // If we have an override, set it and then track the triple we want Modules
+ // to use.
+ if (!OverrideTriple.empty()) {
+ TargetTriple.setTriple(OverrideTriple);
+ outs() << "Override triple set to '" << OverrideTriple << "'\n";
+ }
+
+ if (MemoryLimit < 0) {
+ // Set the default MemoryLimit. Be sure to update the flag's description if
+ // you change this.
+ if (sys::RunningOnValgrind() || UseValgrind)
+ MemoryLimit = 800;
+ else
+ MemoryLimit = 100;
+ }
+
+ BugDriver D(argv[0], AsChild, FindBugs, TimeoutValue, MemoryLimit,
+ UseValgrind, Context);
if (D.addSources(InputFilenames)) return 1;
+
+ AddToDriver PM(D);
+ if (StandardCompileOpts) {
+ createStandardModulePasses(&PM, 3,
+ /*OptimizeSize=*/ false,
+ /*UnitAtATime=*/ true,
+ /*UnrollLoops=*/ true,
+ /*SimplifyLibCalls=*/ true,
+ /*HaveExceptions=*/ true,
+ createFunctionInliningPass());
+ }
+
+ if (StandardLinkOpts)
+ createStandardLTOPasses(&PM, /*Internalize=*/true,
+ /*RunInliner=*/true,
+ /*VerifyEach=*/false);
+
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");
- }
+ // 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";
- return 1;
- } catch (...) {
- std::cerr << "Whoops, an exception leaked out of bugpoint. "
- << "This is a bug in bugpoint!\n";
+ std::string Error;
+ bool Failure = D.run(Error);
+ if (!Error.empty()) {
+ errs() << Error;
return 1;
}
+ return Failure;
}
projects / oota-llvm.git / blobdiff