Fix PR670 and test/Regression/Transforms/Mem2Reg/2005-11-28-Crash.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24508 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-11-29 01:07:12 +00:00
parent cae34910c9
commit d87ef134d7

View File

@ -311,6 +311,7 @@ public:
///
bool properlyDominates(const Node *N) const {
const Node *IDom;
if (this == 0 || N == 0) return false;
while ((IDom = N->getIDom()) != 0 && IDom != this)
N = IDom; // Walk up the tree
return IDom != 0;