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-rw-r--r--contrib/llvm/tools/bugpoint/bugpoint.cpp159
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diff --git a/contrib/llvm/tools/bugpoint/bugpoint.cpp b/contrib/llvm/tools/bugpoint/bugpoint.cpp
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-//===- 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/LLVMContext.h"
-#include "llvm/Support/PassNameParser.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;
-
-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>
-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 void *ID = P->getPassID();
- const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(ID);
- D.addPass(PI->getPassArgument());
- }
- };
-}
-
-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.org/cmds/bugpoint.html"
- " for more information.\n");
- sys::SetInterruptFunction(BugpointInterruptFunction);
-
- 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(Triple::normalize(OverrideTriple));
- outs() << "Override triple set to '" << TargetTriple.getTriple() << "'\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], 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);
-
-
- for (std::vector<const PassInfo*>::iterator I = PassList.begin(),
- E = PassList.end();
- I != E; ++I) {
- const PassInfo* PI = *I;
- D.addPass(PI->getPassArgument());
- }
-
- // Bugpoint has the ability of generating a plethora of core files, so to
- // avoid filling up the disk, we prevent it
- sys::Process::PreventCoreFiles();
-
- std::string Error;
- bool Failure = D.run(Error);
- if (!Error.empty()) {
- errs() << Error;
- return 1;
- }
- return Failure;
-}
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