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

   1 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
   2 /* { dg-require-effective-target sse4 } */
   3 /* { dg-options "-O2 -msse4.2" } */
   4
   5 #include "sse4_2-check.h"
   6
   7 #include <nmmintrin.h>
   8
   9 #define NUM 64
  10
  11 static void
  12 sse4_2_test (void)
  13 {
  14   union
  15     {
  16       __m128i x[NUM / 2];
  17       long long ll[NUM];
  18     } dst, src1, src2;
  19   int i, sign = 1;
  20   long long is_eq;
  21
  22   for (i = 0; i < NUM; i++)
  23     {
  24       src1.ll[i] = i * i * sign;
  25       src2.ll[i] = (i + 20) * sign;
  26       sign = -sign;
  27     }
  28
  29   for (i = 0; i < NUM; i += 2)
  30     dst.x[i / 2] = _mm_cmpgt_epi64 (src1.x[i / 2], src2.x[i / 2]);
  31
  32   for (i = 0; i < NUM; i++)
  33     {
  34       is_eq = src1.ll[i] > src2.ll[i] ? 0xFFFFFFFFFFFFFFFFLL : 0LL;
  35       if (is_eq != dst.ll[i])
  36         abort ();
  37     }
  38 }