gcc/testsuite/gcc.target/i386/vperm-v4si-2.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target ssse3 } */
   3 /* { dg-options "-O -mssse3" } */
   4
   5 #include "isa-check.h"
   6
   7 typedef int S;
   8 typedef int V __attribute__((vector_size(16)));
   9 typedef int IV __attribute__((vector_size(16)));
  10 typedef union { S s[4]; V v; } U;
  11
  12 static U i[2], b, c;
  13
  14 extern int memcmp (const void *, const void *, __SIZE_TYPE__);
  15 #define assert(T) ((T) || (__builtin_trap (), 0))
  16
  17 #define TEST(E0, E1, E2, E3) \
  18   b.v = __builtin_shuffle (i[0].v, i[1].v, (IV){E0, E1, E2, E3}); \
  19   c.s[0] = i[0].s[E0]; \
  20   c.s[1] = i[0].s[E1]; \
  21   c.s[2] = i[0].s[E2]; \
  22   c.s[3] = i[0].s[E3]; \
  23   __asm__("" : : : "memory"); \
  24   assert (memcmp (&b, &c, sizeof(c)) == 0);
  25
  26 #include "vperm-4-2.inc"
  27
  28 int main()
  29 {
  30   check_isa ();
  31
  32   i[0].s[0] = 0;
  33   i[0].s[1] = 1;
  34   i[0].s[2] = 2;
  35   i[0].s[3] = 3;
  36   i[0].s[4] = 4;
  37   i[0].s[5] = 5;
  38   i[0].s[6] = 6;
  39   i[0].s[7] = 7;
  40
  41   check();
  42   return 0;
  43 }