https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109585
Alexander Monakov <amonakov at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |amonakov at gcc dot gnu.org
--- Comment #13 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
The small repro from comment #5 is reproducible on x86_64 trunk as well with
-O2 -DNDEBUG (as well as on older x86_64 branches without -DNDEBUG).
sched2 is lifting
(insn:TI 295 100 101 12 (set (reg:CCZ 17 flags)
(compare:CCZ (mem/f:DI (plus:DI (reg/v/f:DI 3 bx [orig:133 t ] [133])
(const_int 8 [0x8])) [2 MEM[(const struct ZixBTreeIter
*)t_3(D)].stack[0].node+0 S8 A64])
(const_int 0 [0]))) "/app/example.c":65:12 discrim 2 8
{*cmpdi_ccno_1}
(nil))
above conflicting
(insn 101 295 102 12 (set (mem/f:DI (reg/v/f:DI 0 ax [orig:96 f ] [96]) [2
f_69->node+0 S8 A64])
(const_int 0 [0])) "/app/example.c":86:14 88 {*movdi_internal}
(nil))
