gcc/testsuite/gcc.target/arm/pr71056.c

   1 /* PR target/71056.  */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target arm_vfp3_ok } */
   4 /* { dg-options "-O3 -mfpu=vfpv3" } */
   5
   6 /* Check that compiling for a non-NEON target doesn't try to introduce
   7    a NEON vectorized builtin.  */
   8
   9 extern char *buff;
  10 int f2 ();
  11 struct T1
  12 {
  13   int reserved[2];
  14   unsigned int ip;
  15   unsigned short cs;
  16   unsigned short rsrv2;
  17 };
  18 void
  19 f3 (const char *p)
  20 {
  21   struct T1 x;
  22   __builtin_memcpy (&x, p, sizeof (struct T1));
  23   x.reserved[0] = __builtin_bswap32 (x.reserved[0]);
  24   x.reserved[1] = __builtin_bswap32 (x.reserved[1]);
  25   x.ip = __builtin_bswap32 (x.ip);
  26   x.cs = x.cs << 8 | x.cs >> 8;
  27   x.rsrv2 = x.rsrv2 << 8 | x.rsrv2 >> 8;
  28   if (f2 ())
  29     {
  30       __builtin_memcpy (buff, "\n", 1);
  31     }
  32 }