[Bug rtl-optimization/49847] [4.6/4.7 Regression] m68k gcj-4.6 NULL deref in fold_rtx (prev_insn_cc0 == NULL)

[sch...@linux-m68k.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49847

Andreas Schwab <sch...@linux-m68k.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-01-22
     Ever Confirmed|0                           |1

--- Comment #7 from Andreas Schwab <sch...@linux-m68k.org> 2012-01-22 10:34:24 
UTC ---
Previously set_fast_math_flags was only called if -Ofast was enabled, now it is
called unconditionally (with set=0/1 according to -Ofast), which clobbers
flag_trapping_math unless frontend_set_flag_trapping_math is set.  The
frontends need to be updated to properly set the frontend_set_... flags.