Owen Anderson 1e35610f20 Fixes and cleanups pointed out by Chris. In general, be careful to handle 0 results from ComputeValueKnownInPredecessors
(indicating undef), and re-use existing constant folding APIs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30 22:07:52 +00:00
..
2010-08-30 18:12:35 +00:00
2010-08-23 19:24:12 +00:00
2010-08-30 21:54:03 +00:00