http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56077
Alexander Monakov <amonakov at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |amonakov at gcc dot gnu.org
--- Comment #8 from Alexander Monakov <amonakov at gcc dot gnu.org> 2013-02-04
17:25:05 UTC ---
The difference in behaviour is due to this change in sched_analyze_insn, inside
"if (reg_pending_barrier)":
+ /* Flush pending lists on jumps, but not on speculative checks. */
+ if (JUMP_P (insn) && !(sel_sched_p ()
+ && sel_insn_is_speculation_check (insn)))
flush_pending_lists (deps, insn, true, true);
The "JUMP_P (insn) && " part in the condition seems to be an unintended change.
