https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106704
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|X86_64 |x86_64-*-*
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is that
vector(8) int _5;
_6 = _5 < { 0, 0, 0, 0, 0, 0, 0, 0 };
isn't supported with just AVX. It's probably a bug in vector lowering,
(define_expand "vcond<V_256:mode><VF_256:mode>"
[(set (match_operand:V_256 0 "register_operand")
(if_then_else:V_256
(match_operator 3 ""
[(match_operand:VF_256 4 "nonimmediate_operand")
(match_operand:VF_256 5 "nonimmediate_operand")])
(match_operand:V_256 1 "general_operand")
(match_operand:V_256 2 "general_operand")))]
"TARGET_AVX
&& (GET_MODE_NUNITS (<V_256:MODE>mode)
== GET_MODE_NUNITS (<VF_256:MODE>mode))"
should have been used here. I will have a look.
