1a5728872c7702ddd09537c95bc3cbd20e1f2fb09Daniel Dunbar// RUN: %clang_cc1 -fsyntax-only -verify %s -pedantic -std=c99 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanint __attribute__(()) x; 47399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 5eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedman__inline void __attribute__((__always_inline__, __nodebug__)) 67399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattnerfoo(void) { 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 87399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 97399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 10eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedman__attribute__(()) y; // expected-warning {{defaults to 'int'}} 117399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 127399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner// PR2796 13eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanint (__attribute__(()) *z)(long y); 147399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 157399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 16eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid f1(__attribute__(()) int x); 177399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 18eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanint f2(y, __attribute__(()) x); // expected-error {{expected identifier}} 197399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 207399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner// This is parsed as a normal argument list (with two args that are implicit 21eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedman// int) because the __attribute__ is a declspec. 22eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid f3(__attribute__(()) x, // expected-warning {{defaults to 'int'}} 237399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner y); // expected-warning {{defaults to 'int'}} 247399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 25eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid f4(__attribute__(())); // expected-error {{expected parameter declarator}} 267399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 277399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 28eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedman// This is ok, the __attribute__ applies to the pointer. 29eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanint baz(int (__attribute__(()) *x)(long y)); 307399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 31eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid g1(void (*f1)(__attribute__(()) int x)); 32eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid g2(int (*f2)(y, __attribute__(()) x)); // expected-error {{expected identifier}} 33eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid g3(void (*f3)(__attribute__(()) x, int y)); // expected-warning {{defaults to 'int'}} 34eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid g4(void (*f4)(__attribute__(()))); // expected-error {{expected parameter declarator}} 357399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 367399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 37eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid (*h1)(void (*f1)(__attribute__(()) int x)); 38eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid (*h2)(int (*f2)(y, __attribute__(()) x)); // expected-error {{expected identifier}} 397399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner 40eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid (*h3)(void (*f3)(__attribute__(()) x)); // expected-warning {{defaults to 'int'}} 41eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid (*h4)(void (*f4)(__attribute__(()))); // expected-error {{expected parameter declarator}} 42aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner 43aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner 44aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner 45aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner// rdar://6131260 46aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattnerint foo42(void) { 47eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedman int x, __attribute__((unused)) y, z; 48aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner return 0; 49aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner} 50aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner 51aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner// rdar://6096491 52eb32fde032a250091134db56a3aeaea6b09f6594Eli Friedmanvoid __attribute__((noreturn)) d0(void), __attribute__((noreturn)) d1(void); 53aab740af64daaa8d94d34789a6ea7e2d2fc5ab39Chris Lattner 541b2fc0f3e181d99fb34f60e711066fb11628ecd0John Thompsonvoid d2(void) __attribute__((noreturn)), d3(void) __attribute__((noreturn)); 55e8551e4abd314053b45f10f22fa69fb6f8e8b449Chris Lattner 56e8551e4abd314053b45f10f22fa69fb6f8e8b449Chris Lattner 57e8551e4abd314053b45f10f22fa69fb6f8e8b449Chris Lattner// PR6287 58e8551e4abd314053b45f10f22fa69fb6f8e8b449Chris Lattnervoid __attribute__((returns_twice)) returns_twice_test(); 59fe0a0fb65f18a8495d97a700ca62fe639ffd85e9Richard Smith 60fe0a0fb65f18a8495d97a700ca62fe639ffd85e9Richard Smithint aligned(int); 61d386fef64f1fd00fc9a97efb963d8ec393fd1aceRichard Smithint __attribute__((vec_type_hint(char, aligned(16) )) missing_rparen_1; // expected-error 2{{expected ')'}} expected-note {{to match}} expected-warning {{does not declare anything}} 62fe0a0fb65f18a8495d97a700ca62fe639ffd85e9Richard Smithint __attribute__((mode(x aligned(16) )) missing_rparen_2; // expected-error {{expected ')'}} 63fe0a0fb65f18a8495d97a700ca62fe639ffd85e9Richard Smithint __attribute__((format(printf, 0 aligned(16) )) missing_rparen_3; // expected-error {{expected ')'}} 64c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 65c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 66c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 67c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchinsint testFundef1(int *a) __attribute__((nonnull(1))) { // \ 68651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // expected-warning {{GCC does not allow 'nonnull' attribute in this position on a function definition}} 69c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins return *a; 70c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins} 71c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 72c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins// noreturn is lifted to type qualifier 73c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchinsvoid testFundef2() __attribute__((noreturn)) { // \ 74651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // expected-warning {{GCC does not allow 'noreturn' attribute in this position on a function definition}} 75c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins testFundef2(); 76c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins} 77c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 78c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchinsint testFundef3(int *a) __attribute__((nonnull(1), // \ 79651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // expected-warning {{GCC does not allow 'nonnull' attribute in this position on a function definition}} 80c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins pure)) { // \ 81651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // expected-warning {{GCC does not allow 'pure' attribute in this position on a function definition}} 82c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins return *a; 83c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins} 84c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 85c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchinsint testFundef4(int *a) __attribute__((nonnull(1))) // \ 86651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // expected-warning {{GCC does not allow 'nonnull' attribute in this position on a function definition}} 87c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins __attribute((pure)) { // \ 88651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // expected-warning {{GCC does not allow 'pure' attribute in this position on a function definition}} 89c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins return *a; 90c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins} 91c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 92c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins// GCC allows these 93c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchinsvoid testFundef5() __attribute__(()) { } 94c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 95c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins__attribute__((pure)) int testFundef6(int a) { return a; } 96c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesvoid deprecatedTestFun(void) __attribute__((deprecated())); 98