Chris Lattner 17819d971e eliminate additions of 0.0 when they are obviously dead. This has to be careful to
avoid turning -0.0 + 0.0 -> -0.0 which is incorrect.

llvm-svn: 46499
2008-01-29 06:52:45 +00:00
..
2007-06-29 16:35:07 +00:00
2007-07-17 06:20:38 +00:00
2007-09-10 18:12:52 +00:00
2007-04-21 20:46:55 +00:00