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

   1 /* { dg-do compile } */
   2 /* { dg-skip-if "" { *-*-* } { "-march=*" } { "-march=x86-64" } } */
   3 /* { dg-options "-O3 -march=x86-64 -msse2 -mno-ssse3" } */
   4 /* { dg-final { scan-assembler "punpcklbw" } } */
   5 extern void abort();
   6 #include <emmintrin.h>
   7 __m128i foo (char) __attribute__((noinline));
   8 __m128i foo (char x) {
   9   return _mm_set1_epi8(x);
  10 }
  11 __m128i bar (char) __attribute__((noinline));
  12 __m128i bar (char x) {
  13   return _mm_set_epi8 (x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x);
  14 }
  15
  16 int
  17 main() {
  18   int i, j;
  19   union u { __m128i v; char c[16]; };
  20   union u x, y;
  21   for (i = -128; i <= 127; i++)
  22     {
  23       x.v = foo ((char)i);
  24       y.v = bar ((char)i);
  25       for (j=0; j<16; j++)
  26         if (x.c[j] != y.c[j])
  27           abort();
  28     }
  29   return 0;
  30 }
  31