Nick Lewycky c554a9b58e Teach simplifycfg to recompute branch weights when merging some branches, and
to discard weights when appropriate. Still more to do (and a new TODO), but
it's a start!

llvm-svn: 147286
2011-12-27 04:31:52 +00:00
..
2011-05-19 02:35:26 +00:00