Bill Wendling d47d348cdf It's possible for a global variable to be optimized out of a metadata object. So
we should allow a "null" with this dyn_cast.

llvm-svn: 83573
2009-10-08 20:52:51 +00:00
..
2009-09-12 22:24:25 +00:00
2009-10-02 19:36:31 +00:00