gcc/testsuite/gcc.dg/asan/use-after-scope-4.c

   1 // { dg-do run }
   2
   3 #define FN(NAME) \
   4 NAME (void) \
   5 { \
   6   char *ptr; \
   7   char *ptr2; \
   8   { \
   9     char my_char[9]; \
  10     ptr = &my_char[0]; \
  11     __builtin_memcpy (&ptr2, &ptr, sizeof (ptr2)); \
  12   } \
  13  \
  14   *(ptr2+9) = 'c'; \
  15 }
  16
  17 void
  18 __attribute__((no_sanitize(("address"))))
  19 __attribute__((no_sanitize(("undefined"))))
  20 __attribute__((no_sanitize(("address"))))
  21 __attribute__((no_sanitize(("null"))))
  22 FN (fn1)
  23
  24 void
  25 __attribute__((no_sanitize(("all"))))
  26 FN (fn2)
  27
  28 void
  29 __attribute__((no_sanitize_address))
  30 FN (fn3)
  31
  32 int
  33 main (void)
  34 {
  35   fn1 ();
  36   fn2 ();
  37   fn3 ();
  38
  39   return 0;
  40 }