[Bug tree-optimization/46639] [4.6/4.7 Regression] Missing optimization due to function splitting and redundant conditionals

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46639

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-05-05 
11:03:23 UTC ---
Another testcase:
http://gcc.gnu.org/bugzilla/attachment.cgi?id=24188
Richard suggests running pass_vrp_early instead of (or in addition to) pass_ccp
with some more expensive parts of VRP disabled.