clang/test/Sema/attr-guard_nocf.c

   1 // RUN: %clang_cc1 -triple %ms_abi_triple -fms-extensions -verify -fsyntax-only %s
   2 // RUN: %clang_cc1 -triple %ms_abi_triple -fms-extensions -verify -std=c++11 -fsyntax-only -x c++ %s
   3 // RUN: %clang_cc1 -triple x86_64-w64-windows-gnu -verify -fsyntax-only %s
   4 // RUN: %clang_cc1 -triple x86_64-w64-windows-gnu -verify -std=c++11 -fsyntax-only -x c++ %s
   5 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -verify -fsyntax-only %s
   6 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -verify -std=c++11 -fsyntax-only -x c++ %s
   7
   8 // The x86_64-w64-windows-gnu version tests mingw target, which relies on
   9 // __declspec(...) being defined as __attribute__((...)) by compiler built-in.
  10
  11 #if defined(_WIN32)
  12
  13 // Function definition.
  14 __declspec(guard(nocf)) void testGuardNoCF(void) { // no warning
  15 }
  16
  17 // Function definition using GNU-style attribute without relying on the
  18 // __declspec define for mingw.
  19 __attribute__((guard(nocf))) void testGNUStyleGuardNoCF(void) { // no warning
  20 }
  21
  22 // Can not be used on variable, parameter, or function pointer declarations.
  23 int __declspec(guard(nocf)) i;                                      // expected-warning {{'guard' attribute only applies to functions}}
  24 void testGuardNoCFFuncParam(double __declspec(guard(nocf)) i) {}    // expected-warning {{'guard' attribute only applies to functions}}
  25 __declspec(guard(nocf)) typedef void (*FuncPtrWithGuardNoCF)(void); // expected-warning {{'guard' attribute only applies to functions}}
  26
  27 // 'guard' Attribute requries an argument.
  28 __declspec(guard) void testGuardNoCFParams(void) { // expected-error {{'guard' attribute takes one argument}}
  29 }
  30
  31 // 'guard' Attribute requries an identifier as argument.
  32 __declspec(guard(1)) void testGuardNoCFParamType(void) { // expected-error {{'guard' attribute requires an identifier}}
  33 }
  34
  35 // 'guard' Attribute only takes a single argument.
  36 __declspec(guard(nocf, nocf)) void testGuardNoCFTooManyParams(void) { // expected-error {{use of undeclared identifier 'nocf'}}
  37 }
  38
  39 // 'guard' Attribute argument must be a supported identifier.
  40 __declspec(guard(cf)) void testGuardNoCFInvalidParam(void) { // expected-warning {{'guard' attribute argument not supported: 'cf'}}
  41 }
  42
  43 #else
  44
  45 __attribute((guard(nocf))) void testGNUStyleGuardNoCF(void) {} // expected-warning {{unknown attribute 'guard' ignored}}
  46
  47 #endif