gcc/testsuite/gcc.dg/991209-1.c

   1 /* { dg-do compile { target i?86-*-* } } */
   2 /* { dg-options "-ansi -pedantic" } */
   3
   4 int foo ()
   5 {
   6   return 1;
   7 }
   8
   9 register char *stack_ptr __asm ("%esp"); /* { dg-warning "warning: file-scope declaration of 'stack_ptr' specifies 'register'" } */