http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49847
--- Comment #30 from rguenther at suse dot de <rguenther at suse dot de> --- On February 15, 2014 3:22:54 PM GMT+01:00, "sch...@linux-m68k.org" <gcc-bugzi...@gcc.gnu.org> wrote: >http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49847 > >--- Comment #29 from Andreas Schwab <sch...@linux-m68k.org> --- >In gcc <= 4.6 I'm unable to tell the compiler to consider the fp >compare >trapping even with -ftrapping-math. And before the rev. Cited we failed to create eh edges / info. And if we'd have eh edges out of the gimple_cond then we'd generate wrong unwind info. Spilling cc0 by rematerializing the compare seems to be the only way out. Unless the target can avoid iceing. Cc0 should be live on the fallthru edge - so what _is_ exactly the problem we are facing?
