gcc/testsuite/gcc.c-torture/execute/20101013-1.c

   1 /* PR rtl-optimization/45912 */
   2
   3 extern void abort (void);
   4
   5 static void* __attribute__((noinline,noclone))
   6 get_addr_base_and_unit_offset (void *base, long long *i)
   7 {
   8   *i = 0;
   9   return base;
  10 }
  11
  12 static void* __attribute__((noinline,noclone))
  13 build_int_cst (void *base, long long offset)
  14 {
  15   if (offset != 4)
  16     abort ();
  17
  18   return base;
  19 }
  20
  21 static void* __attribute__((noinline,noclone))
  22 build_ref_for_offset (void *base, long long offset)
  23 {
  24   long long base_offset;
  25   base = get_addr_base_and_unit_offset (base, &base_offset);
  26   return build_int_cst (base, base_offset + offset / 8);
  27 }
  28
  29 int
  30 main (void)
  31 {
  32   void *ret = build_ref_for_offset ((void *)0, 32);
  33   if (ret != (void *)0)
  34     abort ();
  35   return 0;
  36 }