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Don't delete one more instruction than we're allowed to. This should fix the

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Darwin bootstrap. Testcase exists but isn't fully reduced, I expect to commit
the testcase this evening.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160693 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2012-07-24 21:33:00 +00:00
parent 9669f74976
commit 952f5d562c
1 changed files with 3 additions and 1 deletions
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4
lib/Transforms/IPO/GlobalOpt.cpp
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@ -442,12 +442,14 @@ static bool CleanupPointerRootUsers(GlobalVariable *GV) {
Dead[i].second->eraseFromParent();
Instruction *I = Dead[i].first;
do {
if (isAllocationFn(I))
break;
Instruction *J = dyn_cast<Instruction>(I->getOperand(0));
if (!J)
break;
I->eraseFromParent();
I = J;
} while (!isAllocationFn(I));
} while (1);
I->eraseFromParent();
}
}