------- Comment #2 from pinskia at gcc dot gnu dot org 2006-12-14 17:29 -------
(In reply to comment #1)
> Builtin vmuloub has always returned "wrong" types, because it derives its
> types
> simply from the modes of the altivec_vmuloub pattern.
Except that is wrong. Look at the altivec PIM and you will see it returns
vector unsigned short.
Take the following testcase:
#include <altivec.h>
vector unsigned short f(vector unsigned char a, vector unsigned char b)
{
return vec_vmuloub(a, b);
}
This should work even if we cannot assign from vector signed short to vector
unsigend short.
I think this whole type issue is a mess and needs some improvement.
Maybe next week I can get to that.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-12-14 17:29:55
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30210
