gcc/testsuite/g++.dg/warn/pr83054.C

   1 // PR ipa/83054
   2 // { dg-options "-O3 -Wsuggest-final-types" }
   3 // { dg-do compile }
   4
   5 extern "C" int printf (const char *, ...);
   6 struct foo // { dg-warning "final would enable devirtualization of 5 calls" }
   7 {
   8   static int count;
   9   void print (int i, int j) { printf ("foo[%d][%d] = %d\n", i, j, x); }
  10   int x;
  11   foo () {
  12     x = count++;
  13     printf("this %d = %x\n", x, (void *)this);
  14   }
  15   virtual ~foo () {
  16     printf("this %d = %x\n", x, (void *)this);
  17     --count;
  18   }
  19 };
  20 int foo::count;
  21
  22
  23 int main ()
  24 {
  25   {
  26     foo array[3][3];
  27     for (int i = 0; i < 3; i++)
  28       {
  29         for (int j = 0; j < 3; j++)
  30           {
  31             printf("&a[%d][%d] = %x\n", i, j, (void *)&array[i][j]);
  32           }
  33       }
  34       // The count should be nine, if not, fail the test.
  35       if (foo::count != 9)
  36         return 1;
  37   }
  38   if (foo::count != 0)
  39     return 1;
  40   return 0;
  41 }