gcc/testsuite/gcc.dg/vla-stexp-7.c

   1 /* PR91038 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2 -Wunused-variable" } */
   4
   5
   6 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
   7
   8 struct lbm {
   9
  10         int D;
  11         const int* DQ;
  12
  13 } D2Q9 = { 2,
  14         (const int*)&(const int[9][2]){
  15                 { 0, 0 },
  16                 { 1, 0 }, { 0, 1 }, { -1, 0 }, { 0, -1 },
  17                 { 1, 1 }, { -1, 1 }, { -1, -1 }, { 1, -1 },
  18         }
  19 };
  20
  21 void zouhe_left(void)
  22 {
  23         __auto_type xx = (*({ int N = 2; struct lbm __x = D2Q9; ((const int(*)[9][N])__x.DQ); }));
  24
  25         if (1 != xx[1][0])
  26                 __builtin_abort();
  27
  28         if (2 != ARRAY_SIZE(xx[1]))
  29                 __builtin_abort();
  30
  31         if (1 != (*({ int N = 2; struct lbm __x = D2Q9; ((const int(*)[9][N])__x.DQ); }))[1][0])
  32                 __builtin_abort();
  33
  34         if (2 != ARRAY_SIZE(*({ int N = 2; struct lbm __x = D2Q9; ((const int(*)[9][N])__x.DQ); })[1]))
  35                 __builtin_abort();
  36 }
  37
  38 int main()
  39 {
  40         zouhe_left();
  41         return 0;
  42 }
  43
  44