gcc/testsuite/gcc.dg/pr98721-2.c

   1 /* PR tree-optimization/98721 */
   2 /* { dg-do compile } */
   3
   4 int
   5 foo (void)
   6 {
   7   return __builtin_strlen (__builtin_alloca_with_align (0, 16));        /* { dg-warning "'__builtin_strlen' reading 1 or more bytes from a region of size 0" } */
   8 }       /* { dg-message "source object '<unknown>' of size 0" "" { target *-*-* } .-1 } */