gcc/testsuite/c-c++-common/attributes-3.c

   1 /* PR c++/71024 */
   2 /* { dg-do compile } */
   3 /* { dg-prune-output "declared but never defined" } */
   4
   5 void
   6 fn0 (void) /* { dg-message "previous definition" } */
   7 {
   8 }
   9 extern void __attribute__((optimize ("O2"))) fn0 (void); /* { dg-warning "optimization attribute" } */
  10
  11 extern __attribute__((noinline)) int fn1 (void); /* { dg-message "previous declaration" } */
  12 extern inline int fn1 (void); /* { dg-warning "inline declaration of" } */
  13
  14 extern inline int fn2 (void); /* { dg-message "previous declaration" } */
  15 extern __attribute__((noinline)) int fn2 (void); /* { dg-warning "attribute noinline follows inline declaration" } */
  16
  17 extern __attribute__((always_inline)) int fn3 (void); /* { dg-message "previous declaration" } */
  18 extern __attribute__((noinline)) int fn3 (void); /* { dg-warning "attribute .noinline. follows declaration with attribute .always_inline." } */
  19
  20 extern __attribute__((noinline)) int fn4 (void); /* { dg-message "previous declaration" } */
  21 extern __attribute__((always_inline)) int fn4 (void); /* { dg-warning "attribute .always_inline. follows declaration with attribute .noinline." } */
  22
  23 extern __attribute__((hot)) int fn5 (void); /* { dg-message "previous declaration" } */
  24 extern __attribute__((cold)) int fn5 (void); /* { dg-warning "attribute .cold. follows declaration with attribute .hot." } */
  25
  26 extern __attribute__((cold)) int fn6 (void); /* { dg-message "previous declaration" } */
  27 extern __attribute__((hot)) int fn6 (void); /* { dg-warning "attribute .hot. follows declaration with attribute .cold." } */