gcc/testsuite/c-c++-common/attr-retain-9.c

   1 /* { dg-do compile { target R_flag_in_section } } */
   2 /* { dg-skip-if "non-ELF target" { *-*-darwin* powerpc*-*-aix* } } */
   3 /* { dg-options "-Wall -O2" } */
   4
   5 struct dtv_slotinfo_list
   6 {
   7   struct dtv_slotinfo_list *next;
   8 };
   9
  10 extern struct dtv_slotinfo_list *list;
  11
  12 static int __attribute__ ((used, retain, section ("__libc_freeres_fn")))
  13 free_slotinfo (struct dtv_slotinfo_list **elemp)
  14 {
  15   if (!free_slotinfo (&(*elemp)->next))
  16     return 0;
  17   return 1;
  18 }
  19
  20 /* Prune out the valid warning for the function above:
  21    { dg-prune-output "-Winfinite-recursion" } */
  22
  23 __attribute__ ((section ("__libc_freeres_fn")))
  24 static void free_mem (void)
  25 /* { dg-warning "defined but not used" "" { target *-*-* } .-1 } */
  26 {
  27   free_slotinfo (&list);
  28 }
  29
  30 /* { dg-final { scan-assembler-not "__libc_freeres_fn\n" } } */
  31 /* { dg-final { scan-assembler-not "__libc_freeres_fn,\"ax\"" { target R_flag_in_section } } } */
  32 /* { dg-final { scan-assembler "__libc_freeres_fn,\"axR\"" { target R_flag_in_section } } } */