gcc/testsuite/gcc.target/i386/vperm-v2di.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O -msse2" } */
   3 /* { dg-require-effective-target sse2 } */
   4
   5 #include "isa-check.h"
   6 #include "sse-os-support.h"
   7
   8 typedef long long S;
   9 typedef long long V __attribute__((vector_size(16)));
  10 typedef long long IV __attribute__((vector_size(16)));
  11 typedef union { S s[2]; V v; } U;
  12
  13 static U i[2], b, c;
  14
  15 extern int memcmp (const void *, const void *, __SIZE_TYPE__);
  16 #define assert(T) ((T) || (__builtin_trap (), 0))
  17
  18 #define TEST(E0, E1) \
  19   b.v = __builtin_shuffle (i[0].v, i[1].v, (IV){E0, E1}); \
  20   c.s[0] = i[0].s[E0]; \
  21   c.s[1] = i[0].s[E1]; \
  22   __asm__("" : : : "memory"); \
  23   assert (memcmp (&b, &c, sizeof(c)) == 0);
  24
  25 #include "vperm-2-2.inc"
  26
  27 int main()
  28 {
  29   check_isa ();
  30
  31   if (!sse_os_support ())
  32     exit (0);
  33
  34   i[0].s[0] = 0;
  35   i[0].s[1] = 1;
  36   i[0].s[2] = 2;
  37   i[0].s[3] = 3;
  38
  39   check();
  40   return 0;
  41 }