| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | |
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| 3 | void foo(); |
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| 4 | void foo() __attribute__((unused)); |
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| 5 | void foo() __attribute__((unused)); |
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| 6 | void foo(){} // expected-note {{previous definition is here}} |
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| 7 | void foo() __attribute__((constructor)); // expected-warning {{must precede definition}} |
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| 8 | void foo(); |
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| 9 | |
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| 10 | int bar; |
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| 11 | extern int bar; |
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| 12 | int bar; |
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| 13 | int bar __attribute__((weak)); |
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| 14 | int bar __attribute__((used)); |
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| 15 | extern int bar __attribute__((weak)); |
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| 16 | int bar = 0; // expected-note {{previous definition is here}} |
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| 17 | int bar __attribute__((weak)); // no warning as it matches the existing |
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| 18 | // attribute. |
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| 19 | int bar __attribute__((used, |
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| 20 | visibility("hidden"))); // expected-warning {{must precede definition}} |
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| 21 | int bar; |
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| 22 | |
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| 23 | struct zed { // expected-note {{previous definition is here}} |
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| 24 | }; |
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| 25 | struct __attribute__((visibility("hidden"))) zed; // expected-warning {{must precede definition}} |
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| 26 | |
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| 27 | struct __attribute__((visibility("hidden"))) zed2 { |
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| 28 | }; |
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| 29 | struct __attribute__((visibility("hidden"))) zed2; |
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| 30 | |
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| 31 | struct __attribute__((visibility("hidden"))) zed3 { // expected-note {{previous definition is here}} |
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| 32 | }; |
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| 33 | struct __attribute__((visibility("hidden"), |
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| 34 | packed // expected-warning {{must precede definition}} |
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| 35 | )) zed3; |
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| 36 | |
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| 37 | struct __attribute__((visibility("hidden"))) zed4 { // expected-note {{previous attribute is here}} |
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| 38 | }; |
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| 39 | struct __attribute__((visibility("default"))) zed4; // expected-error {{visibility does not match previous declaration}} |
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| 40 | |
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