| Nikolas Klauser | 874217f | 2023-07-22 09:33:55 -0700 | [diff] [blame] | 1 | // RUN: %clang_cc1 -std=c11 -E -P %s -o - | FileCheck %s |
| Aaron Ballman | 9936b96 | 2020-08-13 08:47:40 -0400 | [diff] [blame] | 2 | // RUN: %clang_cc1 -std=c2x -E -P %s -o - | FileCheck %s |
| Aaron Ballman | 7c18159 | 2017-12-07 23:10:09 +0000 | [diff] [blame] | 3 | |
| Aaron Ballman | 9936b96 | 2020-08-13 08:47:40 -0400 | [diff] [blame] | 4 | #define C2x(x) x: __has_c_attribute(x) |
| Aaron Ballman | 7c18159 | 2017-12-07 23:10:09 +0000 | [diff] [blame] | 5 | |
| Aaron Ballman | b8266f5 | 2022-09-13 11:06:01 -0400 | [diff] [blame] | 6 | // CHECK: fallthrough: 201910L |
| Aaron Ballman | 9936b96 | 2020-08-13 08:47:40 -0400 | [diff] [blame] | 7 | C2x(fallthrough) |
| Aaron Ballman | 7c18159 | 2017-12-07 23:10:09 +0000 | [diff] [blame] | 8 | |
| Aaron Ballman | 1b19df1 | 2022-09-13 08:09:55 -0400 | [diff] [blame] | 9 | // CHECK: __nodiscard__: 202003L |
| Aaron Ballman | 9936b96 | 2020-08-13 08:47:40 -0400 | [diff] [blame] | 10 | C2x(__nodiscard__) |
| Aaron Ballman | d930ed1 | 2019-11-25 17:32:07 -0500 | [diff] [blame] | 11 | |
| Sergei Barannikov | 79f87be | 2023-09-02 05:22:25 +0300 | [diff] [blame] | 12 | // CHECK: warn_unused_result: 0 |
| 13 | C2x(warn_unused_result) |
| 14 | |
| 15 | // CHECK: gnu::warn_unused_result: 1 |
| 16 | C2x(gnu::warn_unused_result) |
| 17 | |
| 18 | // CHECK: clang::warn_unused_result: 0 |
| 19 | C2x(clang::warn_unused_result) |
| 20 | |
| Aaron Ballman | 9936b96 | 2020-08-13 08:47:40 -0400 | [diff] [blame] | 21 | // CHECK: selectany: 0 |
| 22 | C2x(selectany); // Known attribute not supported in C mode |
| 23 | |
| 24 | // CHECK: frobble: 0 |
| 25 | C2x(frobble) // Unknown attribute |
| 26 | |
| 27 | // CHECK: frobble::frobble: 0 |
| 28 | C2x(frobble::frobble) // Unknown vendor namespace |
| 29 | |
| 30 | // CHECK: clang::annotate: 1 |
| 31 | C2x(clang::annotate) |
| 32 | |
| 33 | // CHECK: deprecated: 201904L |
| 34 | C2x(deprecated) |
| 35 | |
| Aaron Ballman | 0f28cf4 | 2022-09-13 09:27:13 -0400 | [diff] [blame] | 36 | // CHECK: maybe_unused: 202106L |
| Aaron Ballman | 9936b96 | 2020-08-13 08:47:40 -0400 | [diff] [blame] | 37 | C2x(maybe_unused) |
| 38 | |
| Sergei Barannikov | 79f87be | 2023-09-02 05:22:25 +0300 | [diff] [blame] | 39 | // CHECK: __gnu__::warn_unused_result: 1 |
| Aaron Ballman | 9936b96 | 2020-08-13 08:47:40 -0400 | [diff] [blame] | 40 | C2x(__gnu__::warn_unused_result) |
| 41 | |
| Sergei Barannikov | 79f87be | 2023-09-02 05:22:25 +0300 | [diff] [blame] | 42 | // CHECK: gnu::__warn_unused_result__: 1 |
| Aaron Ballman | 9936b96 | 2020-08-13 08:47:40 -0400 | [diff] [blame] | 43 | C2x(gnu::__warn_unused_result__) |
| 44 | |
| Aaron Ballman | 2edb89c | 2021-10-17 07:54:48 -0400 | [diff] [blame] | 45 | // Test that macro expansion of the builtin argument works. |
| 46 | #define C clang |
| 47 | #define L likely |
| 48 | #define CL clang::likely |
| 49 | #define N nodiscard |
| 50 | |
| 51 | #if __has_c_attribute(N) |
| 52 | int has_nodiscard; |
| 53 | #endif |
| 54 | // CHECK: int has_nodiscard; |
| 55 | |
| 56 | #if __has_c_attribute(C::L) |
| 57 | int has_clang_likely_1; |
| 58 | #endif |
| 59 | // CHECK: int has_clang_likely_1; |
| 60 | |
| 61 | #if __has_c_attribute(clang::L) |
| 62 | int has_clang_likely_2; |
| 63 | #endif |
| 64 | // CHECK: int has_clang_likely_2; |
| 65 | |
| 66 | #if __has_c_attribute(C::likely) |
| 67 | int has_clang_likely_3; |
| 68 | #endif |
| 69 | // CHECK: int has_clang_likely_3; |
| 70 | |
| 71 | #if __has_c_attribute(CL) |
| 72 | int has_clang_likely_4; |
| 73 | #endif |
| 74 | // CHECK: int has_clang_likely_4; |
| 75 | |
| 76 | #define FUNCLIKE1(x) clang::x |
| 77 | #if __has_c_attribute(FUNCLIKE1(likely)) |
| 78 | int funclike_1; |
| 79 | #endif |
| 80 | // CHECK: int funclike_1; |
| 81 | |
| 82 | #define FUNCLIKE2(x) _Clang::x |
| 83 | #if __has_c_attribute(FUNCLIKE2(likely)) |
| 84 | int funclike_2; |
| 85 | #endif |
| 86 | // CHECK: int funclike_2; |
