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don't invalidate PN, rewrite of this code is in progress anyway.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86639 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-11-10 01:19:06 +00:00
parent e34537856a
commit e7c90967b1
1 changed files with 5 additions and 4 deletions
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9
lib/Transforms/Scalar/JumpThreading.cpp
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@ -223,10 +223,11 @@ static void RemovePredecessorAndSimplify(BasicBlock *BB, BasicBlock *Pred,
U = PNV;
// See if we can simplify it.
if (Value *V = SimplifyInstruction(User, TD)) {
User->replaceAllUsesWith(V);
User->eraseFromParent();
}
if (User != PN)
if (Value *V = SimplifyInstruction(User, TD)) {
User->replaceAllUsesWith(V);
User->eraseFromParent();
}
}
PN->replaceAllUsesWith(PNV);