1 files changed, 104 insertions, 0 deletions
diff --git a/tools/bugpoint/bugpoint.cpp b/tools/bugpoint/bugpoint.cpp
new file mode 100644
index 0000000..20f0e99
--- /dev/null
+++ b/tools/bugpoint/bugpoint.cpp
@@ -0,0 +1,104 @@
+//===- 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/Support/PrettyStackTrace.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::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);
+  
+  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 (const std::bad_alloc &e) {
+    std::cerr << "Oh no, a bugpoint process ran out of memory!\n"
+                 "To increase the allocation limits for bugpoint child\n"
+                 "processes, use the -mlimit option.\n";
+  } catch (const std::exception &e) {
+    std::cerr << "Whoops, a std::exception leaked out of bugpoint: "
+              << e.what() << "\n"
+              << "This is a bug in bugpoint!\n";
+  } catch (...) {
+    std::cerr << "Whoops, an exception leaked out of bugpoint.  "
+              << "This is a bug in bugpoint!\n";
+  }
+  return 1;
+}