https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40589
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |4.9.1
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed for GCC 5 by r5-1564 and backported to GCC 4.9.1.
The code now looks like:
/* For very wide vectors, try using a smaller vector mode. */
tree compute_type = type;
if (op
&& (!VECTOR_MODE_P (TYPE_MODE (type))
|| optab_handler (op, TYPE_MODE (type)) == CODE_FOR_nothing))
{
Which solved this exact issue:
N=4 V2HI
N=8 DImode
N=16 TImode
N=32 BLKmode
N=64 BLKmode
