Vendor import of llvm trunk r126079:

http://llvm.org/svn/llvm-project/llvm/trunk@126079

1 files changed, 28 insertions, 3 deletions

diff --git a/tools/bugpoint/bugpoint.cpp b/tools/bugpoint/bugpoint.cpp
index 79cf563..f9c9e18 100644
--- a/tools/bugpoint/bugpoint.cpp
+++ b/tools/bugpoint/bugpoint.cpp
@@ -23,10 +23,14 @@
 #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/Support/Process.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/Valgrind.h"
 #include "llvm/LinkAllVMCore.h"
+
+//Enable this macro to debug bugpoint itself.
+//#define DEBUG_BUGPOINT 1
+
 using namespace llvm;
 
 static cl::opt<bool> 
@@ -71,9 +75,11 @@ OverrideTriple("mtriple", cl::desc("Override target triple for module"));
 /// BugpointIsInterrupted - Set to true when the user presses ctrl-c.
 bool llvm::BugpointIsInterrupted = false;
 
+#ifndef DEBUG_BUGPOINT
 static void BugpointInterruptFunction() {
   BugpointIsInterrupted = true;
 }
+#endif
 
 // Hack to capture a pass list.
 namespace {
@@ -91,14 +97,31 @@ namespace {
 }
 
 int main(int argc, char **argv) {
+#ifndef DEBUG_BUGPOINT
   llvm::sys::PrintStackTraceOnErrorSignal();
   llvm::PrettyStackTraceProgram X(argc, argv);
   llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
+#endif
+  
+  // Initialize passes
+  PassRegistry &Registry = *PassRegistry::getPassRegistry();
+  initializeCore(Registry);
+  initializeScalarOpts(Registry);
+  initializeIPO(Registry);
+  initializeAnalysis(Registry);
+  initializeIPA(Registry);
+  initializeTransformUtils(Registry);
+  initializeInstCombine(Registry);
+  initializeInstrumentation(Registry);
+  initializeTarget(Registry);
+  
   cl::ParseCommandLineOptions(argc, argv,
                               "LLVM automatic testcase reducer. See\nhttp://"
                               "llvm.org/cmds/bugpoint.html"
                               " for more information.\n");
+#ifndef DEBUG_BUGPOINT
   sys::SetInterruptFunction(BugpointInterruptFunction);
+#endif
 
   LLVMContext& Context = getGlobalContext();
   // If we have an override, set it and then track the triple we want Modules
@@ -147,7 +170,9 @@ int main(int argc, char **argv) {
 
   // Bugpoint has the ability of generating a plethora of core files, so to
   // avoid filling up the disk, we prevent it
+#ifndef DEBUG_BUGPOINT
   sys::Process::PreventCoreFiles();
+#endif
 
   std::string Error;
   bool Failure = D.run(Error);