[Bug middle-end/56077] [4.6/4.7/4.8 Regression] volatile ignored when function inlined

[amonakov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56077

Alexander Monakov <amonakov at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 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.