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update memdep when an instruction is deleted. This code isn't

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actually reached in the testcase in PR8954, but it's safe and good
practice.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123224 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2011-01-11 08:19:16 +00:00
parent b6810991a9
commit 3077ca97bd
1 changed files with 5 additions and 2 deletions
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7
lib/Transforms/Scalar/GVN.cpp
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@ -1383,8 +1383,11 @@ bool GVN::processNonLocalLoad(LoadInst *LI,
}
if (!CanDoPRE) {
while (!NewInsts.empty())
NewInsts.pop_back_val()->eraseFromParent();
while (!NewInsts.empty()) {
Instruction *I = NewInsts.pop_back_val();
if (MD) MD->removeInstruction(I);
I->eraseFromParent();
}
return false;
}