gcc/testsuite/gcc.dg/torture/pr53922.c

   1 /* { dg-do run } */
   2 /* { dg-require-weak "" } */
   3 /* { dg-skip-if "No undefined" { *-*-mingw* } { "*" } { "" } } */
   4 /* { dg-skip-if "No undefined weak" { *-*-aix* } { "*" } { "" } } */
   5 /* { dg-skip-if "No undefined weak" { hppa*-*-hpux* && { ! lp64 } } { "*" } { "" } } */
   6 /* { dg-options "-Wl,-undefined,dynamic_lookup" { target *-*-darwin* } } */
   7
   8 int x(int a)
   9 {
  10   return a;
  11 }
  12 int y(int a) __attribute__ ((weak));
  13 int g = 0;
  14 int main()
  15 {
  16   int (*scan_func)(int);
  17   if (g)
  18     scan_func = x;
  19   else
  20     scan_func = y;
  21
  22   if (scan_func)
  23     g = scan_func(10);
  24
  25   return 0;
  26 }