gcc/testsuite/gcc.target/i386/sse2-shufps-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse2" } */
   3 /* { dg-require-effective-target sse2 } */
   4
   5 #ifndef CHECK_H
   6 #define CHECK_H "sse2-check.h"
   7 #endif
   8
   9 #ifndef TEST
  10 #define TEST sse2_test
  11 #endif
  12
  13 #define MASK 0xab
  14
  15 #include CHECK_H
  16
  17 #include <emmintrin.h>
  18
  19 float select4(const float *src, unsigned int control)
  20 {
  21     switch(control) {
  22     case 0:
  23         return src[0];
  24     case 1:
  25         return src[1];
  26     case 2:
  27         return src[2];
  28     case 3:
  29         return src[3];
  30     }
  31     return -1;
  32 }
  33
  34 static __m128
  35 __attribute__((noinline, unused))
  36 test (__m128 s1, __m128 s2)
  37 {
  38   return _mm_shuffle_ps (s1, s2, MASK);
  39 }
  40
  41 static void
  42 TEST (void)
  43 {
  44   union128 u, s1, s2;
  45   float e[4] = {0.0};
  46
  47   s1.x = _mm_set_ps (1.1, 1.2, 1.3, 1.4);
  48   s2.x = _mm_set_ps (2.1, 2.2, 2.3, 2.4);
  49   u.x = test (s1.x, s2.x);
  50
  51   e[0] = select4(s1.a,   (MASK >> 0) & 0x3);
  52   e[1] = select4(s1.a,   (MASK >> 2) & 0x3);
  53   e[2] = select4(s2.a,   (MASK >> 4) & 0x3);
  54   e[3] = select4(s2.a,   (MASK >> 6) & 0x3);
  55
  56   if (check_union128(u, e))
  57     abort ();
  58 }