Chris Lattner 7a82ba0510 Fix a couple of minor problems. Because PHI nodes can use themselves, this
could cause infinite loops.  Also, getUnderlyingObject can return null


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12351 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-12 23:12:55 +00:00
..
2004-03-12 00:58:41 +00:00
2003-12-11 21:48:18 +00:00
2004-01-09 18:16:20 +00:00