https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90756
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |aoliva at gcc dot gnu.org,
| |jakub at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The r228175
(promote_ssa_mode): Disregard BLKmode from promote_decl, and
bypass TYPE_MODE to get the actual vector mode.
+ /* Bypass TYPE_MODE when it maps vector modes to BLKmode. */
+ if (mode == BLKmode)
+ {
+ gcc_assert (VECTOR_TYPE_P (type));
+ mode = type->type_common.mode;
+ }
+
change looks highly suspicious, that introduces in the IL vector modes that
aren't really supported. If that was done because some SSA_NAMEs might have
underlying decl that has DECL_MODE, I'd say we should either treat all
DECL_MODE similarly to TYPE_MODE, or add more hacks where for vector type decls
we just ignore DECL_MODE and use corresponding TYPE_MODE (I think we have quite
a few of those already).
