1 /* { dg-do run } */ 2 /* { dg-require-effective-target sse4 } */ 3 /* { dg-options "-O2 -msse4.1" } */ 4 5 #ifndef CHECK_H 6 #define CHECK_H "sse4_1-check.h" 7 #endif 8 9 #ifndef TEST 10 #define TEST sse4_1_test 11 #endif 12 13 #include CHECK_H 14 15 #include <smmintrin.h> 16 17 #define NUM 1024 18 19 static void TEST(void)20TEST (void) 21 { 22 union 23 { 24 __m128i x[NUM / 16]; 25 char i[NUM]; 26 } dst, src1, src2; 27 int i, sign = 1; 28 char max; 29 30 for (i = 0; i < NUM; i++) 31 { 32 src1.i[i] = i * i * sign; 33 src2.i[i] = (i + 20) * sign; 34 sign = -sign; 35 } 36 37 for (i = 0; i < NUM; i += 16) 38 dst.x[i / 16] = _mm_max_epi8 (src1.x[i / 16], src2.x[i / 16]); 39 40 for (i = 0; i < NUM; i++) 41 { 42 max = src1.i[i] <= src2.i[i] ? src2.i[i] : src1.i[i]; 43 if (max != dst.i[i]) 44 abort (); 45 } 46 } 47