[Bug c++/38525] sse2(int16) code fails with -O3

Tue Dec 16 00:05:00 GMT 2008

------- Comment #8 from pinskia at gcc dot gnu dot org  2008-12-16 00:03 -------
        int16_t* ip  = (int16_t*)&m1;  
        printf("%hi %hi %hi %hi  %hi %hi %hi %hi \n", *ip++, *ip++, *ip++,
*ip++, *ip++, *ip++, *ip++, *ip);       

That is violating C/C++ aliasing rules even if __m128i is marked with
may_alias, the type you are accessing via is not marked as such.

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38525