gcc/testsuite/gcc.target/i386/pr66906.c

   1 /* { dg-do run { target ia32 } } */
   2 /* { dg-options "-O0 -mregparm=3" } */
   3
   4 typedef int ptrdiff_t;
   5 extern void abort (void);
   6 int
   7 check_int (int *i, int align)
   8 {
   9   *i = 20;
  10   if ((((ptrdiff_t) i) & (align - 1)) != 0)
  11     abort ();
  12   return *i;
  13 }
  14 void
  15 check (void *p, int align)
  16 {
  17   if ((((ptrdiff_t) p) & (align - 1)) != 0)
  18     abort ();
  19 }
  20 typedef int aligned __attribute__((aligned(64)));
  21 void
  22 foo (void)
  23 {
  24   aligned j;
  25   void bar ()
  26     {
  27       aligned i;
  28       if (check_int (&i, __alignof__(i)) != i)
  29         abort ();
  30       if (check_int (&j, __alignof__(j)) != j)
  31         abort ();
  32       j = -20;
  33     }
  34   bar ();
  35   if (j != -20)
  36     abort ();
  37   if (check_int (&j, __alignof__(j)) != j)
  38     abort ();
  39 }
  40 int
  41 main()
  42 {
  43   foo ();
  44   return 0;
  45 }