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

   1 /* PR rtl-optimization/21239 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2 -msse2" } */
   4 /* { dg-require-effective-target sse2 } */
   5
   6 #include "sse2-check.h"
   7
   8 #include <emmintrin.h>
   9
  10 void
  11 foo (unsigned int x, double *y, const double *z)
  12 {
  13   __m128d tmp;
  14   while (x)
  15     {
  16       tmp = _mm_load_sd (z);
  17       _mm_store_sd (y, tmp);
  18       --x; ++z; ++y;
  19     }
  20 }
  21
  22 void
  23 bar (unsigned int x, float *y, const float *z)
  24 {
  25   __m128 tmp;
  26   unsigned int i;
  27   for (i = 0; i < x; ++i)
  28     {
  29       tmp = (__m128) { *z, 0, 0, 0 };
  30       *y = __builtin_ia32_vec_ext_v4sf (tmp, 0);
  31       ++z; ++y;
  32     }
  33   for (i = 0; i < x; ++i)
  34     {
  35       tmp = (__m128) { 0, *z, 0, 0 };
  36       *y = __builtin_ia32_vec_ext_v4sf (tmp, 1);
  37       ++z; ++y;
  38     }
  39   for (i = 0; i < x; ++i)
  40     {
  41       tmp = (__m128) { 0, 0, *z, 0 };
  42       *y = __builtin_ia32_vec_ext_v4sf (tmp, 2);
  43       ++z; ++y;
  44     }
  45   for (i = 0; i < x; ++i)
  46     {
  47       tmp = (__m128) { 0, 0, 0, *z };
  48       *y = __builtin_ia32_vec_ext_v4sf (tmp, 3);
  49       ++z; ++y;
  50     }
  51 }
  52
  53 static void
  54 sse2_test (void)
  55 {
  56   unsigned int i;
  57   double a[16], b[16];
  58   float c[16], d[16];
  59   for (i = 0; i < 16; ++i)
  60     {
  61       a[i] = 1;
  62       b[i] = 2;
  63       c[i] = 3;
  64       d[i] = 4;
  65     }
  66   foo (16, a, b);
  67   bar (4, c, d);
  68   for (i = 0; i < 16; ++i)
  69     {
  70       if (a[i] != 2)
  71         abort ();
  72       if (c[i] != 4)
  73         abort ();
  74     }
  75 }