gcc/testsuite/gcc.target/i386/sse-rsqrtps-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse" } */
   3 /* { dg-require-effective-target sse } */
   4
   5 #ifndef CHECK_H
   6 #define CHECK_H "sse-check.h"
   7 #endif
   8
   9 #ifndef TEST
  10 #define TEST sse_test
  11 #endif
  12
  13 #include CHECK_H
  14
  15 #include <xmmintrin.h>
  16
  17 static __m128
  18 __attribute__((noinline, unused))
  19 test (__m128 s1)
  20 {
  21   return _mm_rsqrt_ps (s1);
  22 }
  23
  24 static void
  25 TEST (void)
  26 {
  27   union128 u, s1;
  28   float e[4];
  29   int i;
  30
  31   s1.x = _mm_set_ps (24.43, 68.346, 43.35, 546.46);
  32   u.x = test (s1.x);
  33
  34   for (i = 0; i < 4; i++)
  35     {
  36       __m128 tmp = _mm_load_ss (&s1.a[i]);
  37       tmp = _mm_rsqrt_ss (tmp);
  38       _mm_store_ss (&e[i], tmp);
  39     }
  40
  41   if (check_union128 (u, e))
  42     abort ();
  43 }