gcc/testsuite/gcc.target/i386/sse4_2-pcmpgtq.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sse4 } */
   3 /* { dg-options "-O2 -msse4.2" } */
   4
   5 #ifndef CHECK_H
   6 #define CHECK_H "sse4_2-check.h"
   7 #endif
   8
   9 #ifndef TEST
  10 #define TEST sse4_2_test
  11 #endif
  12
  13 #include CHECK_H
  14
  15 #include <nmmintrin.h>
  16
  17 #define NUM 64
  18
  19 static void
  20 TEST (void)
  21 {
  22   union
  23     {
  24       __m128i x[NUM / 2];
  25       long long ll[NUM];
  26     } dst, src1, src2;
  27   int i, sign = 1;
  28   long long is_eq;
  29
  30   for (i = 0; i < NUM; i++)
  31     {
  32       src1.ll[i] = i * i * sign;
  33       src2.ll[i] = (i + 20) * sign;
  34       sign = -sign;
  35     }
  36
  37   for (i = 0; i < NUM; i += 2)
  38     dst.x[i / 2] = _mm_cmpgt_epi64 (src1.x[i / 2], src2.x[i / 2]);
  39
  40   for (i = 0; i < NUM; i++)
  41     {
  42       is_eq = src1.ll[i] > src2.ll[i] ? 0xFFFFFFFFFFFFFFFFLL : 0LL;
  43       if (is_eq != dst.ll[i])
  44         abort ();
  45     }
  46 }