gcc/testsuite/gcc.target/i386/sse4_1-blendpd.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target sse4 } */
   3 /* { dg-options "-O2 -msse4.1" } */
   4
   5 #include "sse4_1-check.h"
   6
   7 #include <smmintrin.h>
   8 #include <string.h>
   9
  10 #define NUM 20
  11
  12 #ifndef MASK
  13 #define MASK 0x03
  14 #endif
  15
  16 static void
  17 init_blendpd (double *src1, double *src2)
  18 {
  19   int i, sign = 1;
  20
  21   for (i = 0; i < NUM * 2; i++)
  22     {
  23       src1[i] = i * i * sign;
  24       src2[i] = (i + 20) * sign;
  25       sign = -sign;
  26     }
  27 }
  28
  29 static int
  30 check_blendpd (__m128d *dst, double *src1, double *src2)
  31 {
  32   double tmp[2];
  33   int j;
  34
  35   memcpy (&tmp[0], src1, sizeof (tmp));
  36
  37   for(j = 0; j < 2; j++)
  38     if ((MASK & (1 << j)))
  39       tmp[j] = src2[j];
  40
  41   return memcmp (dst, &tmp[0], sizeof (tmp));
  42 }
  43
  44 static void
  45 sse4_1_test (void)
  46 {
  47   __m128d x, y;
  48   union
  49     {
  50       __m128d x[NUM];
  51       double d[NUM * 2];
  52     } dst, src1, src2;
  53   union
  54     {
  55       __m128d x;
  56       double d[2];
  57     } src3;
  58   int i;
  59
  60   init_blendpd (src1.d, src2.d);
  61
  62   /* Check blendpd imm8, m128, xmm */
  63   for (i = 0; i < NUM; i++)
  64     {
  65       dst.x[i] = _mm_blend_pd (src1.x[i], src2.x[i], MASK);
  66       if (check_blendpd (&dst.x[i], &src1.d[i * 2], &src2.d[i * 2]))
  67         abort ();
  68     }
  69
  70   /* Check blendpd imm8, xmm, xmm */
  71   src3.x = _mm_setzero_pd ();
  72
  73   x = _mm_blend_pd (dst.x[2], src3.x, MASK);
  74   y = _mm_blend_pd (src3.x, dst.x[2], MASK);
  75
  76   if (check_blendpd (&x, &dst.d[4], &src3.d[0]))
  77     abort ();
  78
  79   if (check_blendpd (&y, &src3.d[0], &dst.d[4]))
  80     abort ();
  81 }