clang/test/Frontend/backend-attribute-error-warning.c

   1 // RUN: %clang_cc1 -verify=expected,enabled -emit-codegen-only %s
   2 // RUN: %clang_cc1 -verify -emit-codegen-only -Wno-attribute-warning %s
   3
   4 __attribute__((error("oh no foo"))) void foo(void);
   5
   6 __attribute__((error("oh no bar"))) void bar(void);
   7
   8 int x(void) {
   9   return 8 % 2 == 1;
  10 }
  11
  12 __attribute__((warning("oh no quux"))) void quux(void);
  13
  14 __attribute__((error("demangle me"))) void __compiletime_assert_455(void);
  15
  16 __attribute__((error("one"), error("two"))) // expected-warning {{attribute 'error' is already applied with different arguments}}
  17 void                                        // expected-note@-1 {{previous attribute is here}}
  18 duplicate_errors(void);
  19
  20 __attribute__((warning("one"), warning("two"))) // expected-warning {{attribute 'warning' is already applied with different arguments}}
  21 void                                            // expected-note@-1 {{previous attribute is here}}
  22 duplicate_warnings(void);
  23
  24 void baz(void) {
  25   foo(); // expected-error {{call to 'foo' declared with 'error' attribute: oh no foo}}
  26   if (x())
  27     bar(); // expected-error {{call to 'bar' declared with 'error' attribute: oh no bar}}
  28
  29   quux();                     // enabled-warning {{call to 'quux' declared with 'warning' attribute: oh no quux}}
  30   __compiletime_assert_455(); // expected-error {{call to '__compiletime_assert_455' declared with 'error' attribute: demangle me}}
  31   duplicate_errors();         // expected-error {{call to 'duplicate_errors' declared with 'error' attribute: two}}
  32   duplicate_warnings();       // enabled-warning {{call to 'duplicate_warnings' declared with 'warning' attribute: two}}
  33 }