sdcc/support/regression/tcc/102_alignas.c

   1 _Alignas(16) int i1;
   2 int _Alignas(16) i2;
   3 void _Alignas(16) *p2;
   4 _Alignas(16) i3;
   5 int _Alignas(double) i4;
   6 int _Alignas(int) i5;
   7 #if 0
   8 /* The following are currently wrongly accepted by TCC but really shouldn't.  */
   9 int _Alignas(int _Alignas(16)) i6; //wrong, 'int _Alignas(16)' is no type-name
  10 typedef int _Alignas(16) int16aligned_t; //wrong, _Alignas invalid on typedef
  11 int16aligned_t i7;
  12 #endif
  13 /* i8 should get an alignment of 16, because unlike _Alignas the
  14    corresponding attribute _does_ apply to type-name, though not in
  15    some clang versions.  */
  16 int _Alignas(int __attribute__((aligned(16)))) i8;
  17 extern int printf(const char*, ...);
  18 #ifdef _MSC_VER
  19 #define alignof(x) (int)__alignof(x)
  20 #else
  21 #define alignof(x) (int)__alignof__(x)
  22 #endif
  23 int main()
  24 {
  25   printf("%d %d %d %d\n",
  26          alignof(i1) == 16, alignof(i4) == alignof(double),
  27          alignof(i5) == alignof(int) , alignof(i8) == 16);
  28   return 0;
  29 }