gcc/testsuite/gcc.target/i386/sse-11.c

   1 /* PR rtl-optimization/21239 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2 -msse2" } */
   4
   5 #include "sse2-check.h"
   6
   7 #include <emmintrin.h>
   8
   9 void
  10 foo (unsigned int x, double *y, const double *z)
  11 {
  12   __m128d tmp;
  13   while (x)
  14     {
  15       tmp = _mm_load_sd (z);
  16       _mm_store_sd (y, tmp);
  17       --x; ++z; ++y;
  18     }
  19 }
  20
  21 void
  22 bar (unsigned int x, float *y, const float *z)
  23 {
  24   __m128 tmp;
  25   unsigned int i;
  26   for (i = 0; i < x; ++i)
  27     {
  28       tmp = (__m128) { *z, 0, 0, 0 };
  29       *y = __builtin_ia32_vec_ext_v4sf (tmp, 0);
  30       ++z; ++y;
  31     }
  32   for (i = 0; i < x; ++i)
  33     {
  34       tmp = (__m128) { 0, *z, 0, 0 };
  35       *y = __builtin_ia32_vec_ext_v4sf (tmp, 1);
  36       ++z; ++y;
  37     }
  38   for (i = 0; i < x; ++i)
  39     {
  40       tmp = (__m128) { 0, 0, *z, 0 };
  41       *y = __builtin_ia32_vec_ext_v4sf (tmp, 2);
  42       ++z; ++y;
  43     }
  44   for (i = 0; i < x; ++i)
  45     {
  46       tmp = (__m128) { 0, 0, 0, *z };
  47       *y = __builtin_ia32_vec_ext_v4sf (tmp, 3);
  48       ++z; ++y;
  49     }
  50 }
  51
  52 static void
  53 sse2_test (void)
  54 {
  55   unsigned int i;
  56   double a[16], b[16];
  57   float c[16], d[16];
  58   for (i = 0; i < 16; ++i)
  59     {
  60       a[i] = 1;
  61       b[i] = 2;
  62       c[i] = 3;
  63       d[i] = 4;
  64     }
  65   foo (16, a, b);
  66   bar (4, c, d);
  67   for (i = 0; i < 16; ++i)
  68     {
  69       if (a[i] != 2)
  70         abort ();
  71       if (c[i] != 4)
  72         abort ();
  73     }
  74 }