[Bug c/49300] New: [x86] Missing SSE4.1 intrinsic function

[piotr.wyderski at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49300

           Summary: [x86] Missing SSE4.1 intrinsic function
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: piotr.wyderski@gmail.com


The _mm_extract_epi64() function is available only on x64, but
according to the instruction set, its underlying pextrq instruction 
has the following parameters:

PEXTRQ r/m64, xmm2, imm8

so the m64 mode is available also on 32-bit x86. The function is defined
in smmintrin.h:

#ifdef __x86_64__
extern __inline long long  __attribute__((__gnu_inline__, __always_inline__,
__artificial__))
_mm_extract_epi64 (__m128i __X, const int __N)
{
  return __builtin_ia32_vec_ext_v2di ((__v2di)__X, __N);
}
#endif