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Fix an iterator invalidation problem in a "buggy" pass
llvm-svn: 12468
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72985c5a6d
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@ -44,7 +44,7 @@ namespace {
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namespace {
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/// DeleteCalls - This pass is used to test bugpoint. It intentionally
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/// deletes all call instructions, "misoptimizing" the program.
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/// deletes some call instructions, "misoptimizing" the program.
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class DeleteCalls : public BasicBlockPass {
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bool runOnBasicBlock(BasicBlock &BB) {
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for (BasicBlock::iterator I = BB.begin(), E = BB.end(); I != E; ++I)
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@ -52,6 +52,7 @@ namespace {
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if (!CI->use_empty())
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CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
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CI->getParent()->getInstList().erase(CI);
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break;
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}
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return false;
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}
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