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Fix bug where use still existed in dead code

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llvm-svn: 5824
This commit is contained in:
Chris Lattner 2003-04-21 19:15:26 +00:00
parent e3fca9bc04
commit a489b529fe
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()) {
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);
}