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[Bug rtl-optimization/49847] [4.6/4.7 Regression] m68k gcj-4.6 NULL deref in fold_rtx (prev_insn_cc0 == NULL)
- From: "schwab at linux-m68k dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 22 Jan 2012 10:34:24 +0000
- Subject: [Bug rtl-optimization/49847] [4.6/4.7 Regression] m68k gcj-4.6 NULL deref in fold_rtx (prev_insn_cc0 == NULL)
- Auto-submitted: auto-generated
- References: <bug-49847-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49847
Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-01-22
Ever Confirmed|0 |1
--- Comment #7 from Andreas Schwab <schwab@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.