[Bug middle-end/37042] Strict-aliasing warnings are printed for _mm_load_si128, even though __m128i is __attribute__((__may_alias__)).

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2008-08-07 08:50 -------
Confirmed.  This is the other machinery.

typedef long long __m128i __attribute__ ((__vector_size__ (16),
__may_alias__));

extern __inline __m128i __attribute__((__gnu_inline__, __always_inline__,
__artificial__))
_mm_load_si128 (__m128i const *__P)
{
  return *__P;
}

static const short __attribute__((__aligned__(16))) tbl[8] =
{ 1, 2, 3, 4, 5, 6, 7, 8};


__m128i get_vec(void)
{
  __m128i ret;

  ret = _mm_load_si128((__m128i *)tbl);

  return ret;
}


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |diagnostic
   Last reconfirmed|0000-00-00 00:00:00         |2008-08-07 08:50:50
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37042