| 1 | // RUN: %clang_analyze_cc1 -std=c++14 -analyzer-checker=optin.performance -analyzer-config optin.performance.Padding:AllowedPad=20 -verify %s |
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| 2 | |
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| 3 | // A class that has no fields and one base class should visit that base class |
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| 4 | // instead. Note that despite having excess padding of 2, this is flagged |
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| 5 | // because of its usage in an array of 100 elements below (`ais'). |
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| 6 | // TODO: Add a note to the bug report with BugReport::addNote() to mention the |
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| 7 | // variable using the class and also mention what class is inherting from what. |
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| 8 | // expected-warning@+1{{Excessive padding in 'struct FakeIntSandwich'}} |
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| 9 | struct FakeIntSandwich { |
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| 10 | char c1; |
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| 11 | int i; |
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| 12 | char c2; |
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| 13 | }; |
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| 14 | |
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| 15 | struct AnotherIntSandwich : FakeIntSandwich { // no-warning |
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| 16 | }; |
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| 17 | |
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| 18 | // But we don't yet support multiple base classes. |
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| 19 | struct IntSandwich {}; |
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| 20 | struct TooManyBaseClasses : FakeIntSandwich, IntSandwich { // no-warning |
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| 21 | }; |
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| 22 | |
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| 23 | AnotherIntSandwich ais[100]; |
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| 24 | |
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| 25 | struct Empty {}; |
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| 26 | struct DoubleEmpty : Empty { // no-warning |
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| 27 | Empty e; |
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| 28 | }; |
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| 29 | |
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