Be more helpful if a pass fails while chasing down a miscompilation

llvm-svn: 9214

1 files changed, 6 insertions, 2 deletions

diff --git a/llvm/tools/bugpoint/Miscompilation.cpp b/llvm/tools/bugpoint/Miscompilation.cpp
index 2ede067b1e0..0e350d24dbf 100644
--- a/llvm/tools/bugpoint/Miscompilation.cpp
+++ b/llvm/tools/bugpoint/Miscompilation.cpp
@@ -57,8 +57,10 @@ ReduceMiscompilingPasses::doTest(std::vector<const PassInfo*> &Prefix,
   // prefix passes, then discard the prefix passes.
   //
   if (BD.runPasses(Prefix, BytecodeResult, false/*delete*/, true/*quiet*/)) {
-    std::cerr << BD.getToolName() << ": Error running this sequence of passes"
+    std::cerr << ": Error running this sequence of passes" 
               << " on the input program!\n";
+    BD.setPassesToRun(Prefix);
+    BD.EmitProgressBytecode("pass-error",  false);
     exit(1);
   }
 
@@ -88,8 +90,10 @@ ReduceMiscompilingPasses::doTest(std::vector<const PassInfo*> &Prefix,
   Module *OriginalInput = BD.Program;
   BD.Program = PrefixOutput;
   if (BD.runPasses(Suffix, BytecodeResult, false/*delete*/, true/*quiet*/)) {
-    std::cerr << BD.getToolName() << ": Error running this sequence of passes"
+    std::cerr << ": Error running this sequence of passes" 
               << " on the input program!\n";
+    BD.setPassesToRun(Prefix);
+    BD.EmitProgressBytecode("pass-error",  false);
     exit(1);
   }