https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65177
Sebastian Pop <spop at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |UNCONFIRMED
Last reconfirmed|2015-02-25 00:00:00 |
Ever confirmed|1 |0
--- Comment #6 from Sebastian Pop <spop at gcc dot gnu.org> ---
The SEME region copier does not update the SSA correctly:
bb_53:
# i_1 = PHI <i_126(13), i_250(52)>
# sprv_5 = PHI <sprv_137(13), sprv_284(52)>
# .MEM_7 = PHI <.MEM_331(13), .MEM_337(52)>
# k_339 = PHI <k_84(13), k_285(52)>
# sprv_780 = PHI <1(13), 7(52)>
bb_104 is a copy of bb_53:
# i_672 = PHI <i_126(13)>
# sprv_437 = PHI <sprv_137(13)>
# .MEM_715 = PHI <.MEM_331(13)>
# k_716 = PHI <k_84(13)>
# sprv_717 = PHI <1(13)>
bb_64:
# _319 = PHI <0.0(55), 0.0(58), _313(61)>
# sprv_751 = PHI <sprv_5(55), 5(58), 8(61)>
# i_769 = PHI <i_1(55), i_766(58), i_767(61)>
# sprv_784 = PHI <sprv_780(55), sprv_781(58), 8(61)>
# k_790 = PHI <k_339(55), k_787(58), k_788(61)>
# .MEM_810 = PHI <.MEM_7(55), .MEM_807(58), .MEM_808(61)>
bb_106 a copy of bb_64:
# _594 = PHI <0.0(105)>
# sprv_515 = PHI <sprv_5(105)>
# i_516 = PHI <i_1(105)>
# sprv_567 = PHI <sprv_780(105)>
# k_541 = PHI <k_339(105)>
# .MEM_619 = PHI <.MEM_7(105)>
In bb_106, a copy of bb_64,
- # sprv_567 = PHI <sprv_780(105)>
we use the old value sprv_780 instead of the new value sprv_717 set in
bb_105:
- # sprv_515 = PHI <sprv_5(105)>
we use the old value sprv_5 instead of the new value sprv_437:
