1  /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
       2  /* { dg-options "-msse4" } */
       3  #include <nmmintrin.h>
       4  __m128i load (char *);
       5  char *
       6  foo (char *p1, char *p2,
       7       int bmsk, __m128i mask1, __m128i mask2)
       8  {
       9    int len = 0;
      10    __m128i frag1, frag2;
      11    int  cmp_s;
      12    if( !p2[0]) return p1;
      13    if( !p1[0] ) return NULL;
      14    frag2 = load (p2); 
      15    frag1 = load (p1);
      16    frag2 = _mm_blendv_epi8(frag2, mask2, mask1);
      17    frag1 = _mm_blendv_epi8(frag1, mask2, mask1);
      18    cmp_s = _mm_cmpistrs(frag2, frag1, 0x0c);
      19    if( cmp_s )
      20      __asm("bsfl %[bmsk], %[len]" : [len] "=r" (len) : [bmsk] "r" (bmsk) );
      21    return p1 + len;
      22  }