gcc/testsuite/gcc.target/i386/pr39315-check.c

   1 /* { dg-do compile } */
   2
   3 typedef float __m128 __attribute__ ((__vector_size__ (16)));
   4 __extension__ typedef __PTRDIFF_TYPE__ ptrdiff_t;
   5
   6 extern void foo (__m128 *);
   7 extern void abort (void);
   8
   9 __m128 y = { 0.0, 1.0, 2.0, 3.0 };
  10
  11 void
  12 bar (__m128 *x, int align)
  13 {
  14   if ((((ptrdiff_t) x) & (align - 1)) != 0)
  15     abort ();
  16   if (__builtin_memcmp (x, &y, sizeof (y)) != 0)
  17     abort ();
  18 }
  19
  20 int
  21 main ()
  22 {
  23   foo (&y);
  24   return 0;
  25 }