[Bug tree-optimization/55281] [4.8 Regression] ICE in build_int_cst_wide, at tree.c:1217 (with Ofast, ok with O3)

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55281



--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-12 
16:23:29 UTC ---

I'm just testing that, so I know it doesn't have side-effects.  COND_EXPR

handling which I've copied was doing the same thing.  The reason for the

fold-const.c change was that while you handle that case in forwprop, it only

triggers if forwprop actually simplifies the condition, but if e.g. copyprop

does that, then nothing will fix it up afterwards till expansion.