modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/pr61159.c (about)

     1  /* { dg-require-alias "" } */
     2  /* { dg-require-weak "" } */
     3  
     4  static int dummy = 0;
     5  extern int foo __attribute__((__weak__, __alias__("dummy")));
     6  typedef char check[2*!__builtin_constant_p(dummy)-1];
     7  typedef char check[2*!__builtin_constant_p(foo)-1];