clang/test/Sema/attr-function-return.c

   1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify %s
   2
   3 __attribute__((function_return("keep"))) void x(void) {}
   4
   5 // expected-warning@+1 {{'function_return' attribute argument not supported: thunk}}
   6 __attribute__((function_return("thunk"))) void y(void) {}
   7
   8 // expected-warning@+1 {{'function_return' attribute argument not supported: thunk-inline}}
   9 __attribute__((function_return("thunk-inline"))) void z(void) {}
  10
  11 __attribute__((function_return("thunk-extern"))) void w(void) {}
  12
  13 // expected-warning@+1 {{'function_return' attribute argument not supported: invalid}}
  14 __attribute__((function_return("invalid"))) void v(void) {}
  15
  16 // expected-error@+1 {{'function_return' attribute requires a string}}
  17 __attribute__((function_return(5))) void a(void) {}
  18
  19 // expected-error@+1 {{'function_return' attribute takes one argument}}
  20 __attribute__((function_return)) void b(void) {}
  21
  22 // expected-warning@+1 {{'function_return' attribute only applies to functions}}
  23 __attribute__((function_return)) int c;