Commit 425726d9 authored by Chris Lattner's avatar Chris Lattner
Browse files

Fix an iterator invalidation problem in a "buggy" pass 

llvm-svn: 12468
parent 28202356

llvm/tools/bugpoint/TestPasses.cpp

+2 −1
Original line number Diff line number Diff line
@@ -44,7 +44,7 @@ namespace { 


namespace {

  /// DeleteCalls - This pass is used to test bugpoint.  It intentionally

  /// deletes all call instructions, "misoptimizing" the program.

  /// deletes some call instructions, "misoptimizing" the program.

  class DeleteCalls : public BasicBlockPass {

    bool runOnBasicBlock(BasicBlock &BB) {

      for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I)
@@ -52,6 +52,7 @@ namespace { 
          if (!CI->use_empty())

            CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));

          CI->getParent()->getInstList().erase(CI);

          break;

        }

      return false;

    }