Don't increment invalid iterator.

llvm-svn: 42178
2007-09-20 23:01:50 +00:00 · 2007-09-20 23:01:50 +00:00 · 6117a3b696
parent 3f5d492c70
commit 6117a3b696
1 changed files with 2 additions and 1 deletions
--- a/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopIndexSplit.cpp
@ -928,8 +928,9 @@ void LoopIndexSplit::removeBlocks(BasicBlock *DeadBB, Loop *LP,
  while (!WorkList.empty()) {
    BasicBlock *BB = WorkList.back(); WorkList.pop_back();
    for(BasicBlock::iterator BBI = BB->begin(), BBE = BB->end(); 
-        BBI != BBE; ++BBI) {
+        BBI != BBE; ) {
      Instruction *I = BBI;
+      ++BBI;
      I->replaceAllUsesWith(UndefValue::get(I->getType()));
      I->eraseFromParent();
    }