* Reduce the number of useless bytecode files produced by bugpoint.

  - This also speeds it up as the bytecode writer isn't terribly fast.
* Add a new cleanup pass after everything else to run -funcresolve -globaldce

llvm-svn: 5668

1 files changed, 13 insertions, 0 deletions

diff --git a/llvm/tools/bugpoint/ExtractFunction.cpp b/llvm/tools/bugpoint/ExtractFunction.cpp
index 9b5440c0d4e..c99c8f32b5f 100644
--- a/llvm/tools/bugpoint/ExtractFunction.cpp
+++ b/llvm/tools/bugpoint/ExtractFunction.cpp
@@ -81,3 +81,16 @@ Module *BugDriver::deleteInstructionFromProgram(Instruction *I,
   Passes.run(*Result);
   return Result;
 }
+
+/// performFinalCleanups - This method clones the current Program and performs
+/// a series of cleanups intended to get rid of extra cruft on the module
+/// before handing it to the user...
+///
+Module *BugDriver::performFinalCleanups() const {
+  PassManager CleanupPasses;
+  CleanupPasses.add(createFunctionResolvingPass());
+  CleanupPasses.add(createGlobalDCEPass());
+  Module *M = CloneModule(Program);
+  CleanupPasses.run(*M);
+  return M;
+}