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Fix bug where use still existed in dead code

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5824 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-04-21 19:15:26 +00:00
parent c65b104309
commit 085c801dee
1 changed files with 2 additions and 0 deletions
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2
lib/Transforms/Utils/PromoteMemoryToRegister.cpp
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@ -168,6 +168,8 @@ void PromoteMem2Reg::run() {
// //
while (!I->use_empty()) { while (!I->use_empty()) {
Instruction *U = cast<Instruction>(I->use_back()); Instruction *U = cast<Instruction>(I->use_back());
if (!U->use_empty()) // If uses remain in dead code segment...
U->replaceAllUsesWith(Constant::getNullValue(U->getType()));
U->getParent()->getInstList().erase(U); U->getParent()->getInstList().erase(U);
} }