gcc/testsuite/gcc.target/i386/sse-19.c

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