1 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
2 /* { dg-options "-msse4" } */
3 #include <nmmintrin.h>
4 __m128i load (char *);
5 char *
foo(char * p1,char * p2,int bmsk,__m128i mask1,__m128i mask2)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 }
23