gcc/testsuite/gcc.target/i386/sse-18.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -msse2" } */
   3 /* { dg-require-effective-target sse2 } */
   4
   5 #include "sse2-check.h"
   6
   7 #include <emmintrin.h>
   8
   9 __m128i foo (char) __attribute__((noinline));
  10 __m128i foo (char x) {
  11   return _mm_set1_epi8(x);
  12 }
  13 __m128i bar (char) __attribute__((noinline));
  14 __m128i bar (char x) {
  15   return _mm_set_epi8 (x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x);
  16 }
  17
  18 static void
  19 sse2_test (void) {
  20   int i, j;
  21   union u { __m128i v; char c[16]; };
  22   union u x, y;
  23
  24   for (i = -128; i <= 127; i++)
  25     {
  26       x.v = foo ((char)i);
  27       y.v = bar ((char)i);
  28       for (j=0; j<16; j++)
  29         if (x.c[j] != y.c[j])
  30           abort();
  31     }
  32 }
  33