Fix a problem Nate and Duraid reported where simplifying nodes can cause
authorChris Lattner <sabre@nondot.org>
Mon, 20 Feb 2006 06:51:04 +0000 (06:51 +0000)
committerChris Lattner <sabre@nondot.org>
Mon, 20 Feb 2006 06:51:04 +0000 (06:51 +0000)
commit7d20d39009f89e7c2ab905d0b5dc3af059e7e886
tree8b910f5804e543197ab6b533945d4bd59a1c26f0
parentdca7abed918c8191de6e258ddf394cf11de240f2
Fix a problem Nate and Duraid reported where simplifying nodes can cause
them to get ressurected, in which case, deleting the undead nodes is
unfriendly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26291 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/DAGCombiner.cpp