| 1 | // RUN: %clang_cc1 -fsyntax-only -Wno-error=incompatible-ms-struct -verify -triple i686-apple-darwin9 -std=c++11 %s |
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| 2 | // RUN: %clang_cc1 -fsyntax-only -Wno-error=incompatible-ms-struct -verify -triple armv7-apple-darwin9 -std=c++11 %s |
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| 3 | // RUN: %clang_cc1 -fsyntax-only -DTEST_FOR_ERROR -verify -triple armv7-apple-darwin9 -std=c++11 %s |
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| 4 | |
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| 5 | #pragma ms_struct on |
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| 6 | |
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| 7 | struct A { |
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| 8 | unsigned long a:4; |
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| 9 | unsigned char b; |
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| 10 | }; |
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| 11 | |
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| 12 | struct B : public A { |
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| 13 | #ifdef TEST_FOR_ERROR |
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| 14 | // expected-error@-2 {{ms_struct may not produce Microsoft-compatible layouts for classes with base classes or virtual functions}} |
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| 15 | #else |
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| 16 | // expected-warning@-4 {{ms_struct may not produce Microsoft-compatible layouts for classes with base classes or virtual functions}} |
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| 17 | #endif |
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| 18 | unsigned long c:16; |
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| 19 | int d; |
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| 20 | B(); |
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| 21 | }; |
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| 22 | |
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| 23 | static_assert(__builtin_offsetof(B, d) == 12, |
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| 24 | "We can't allocate the bitfield into the padding under ms_struct"); |
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| 25 | |
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| 26 | // rdar://16178895 |
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| 27 | struct C { |
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| 28 | #ifdef TEST_FOR_ERROR |
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| 29 | // expected-error@-2 {{ms_struct may not produce Microsoft-compatible layouts for classes with base classes or virtual functions}} |
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| 30 | #else |
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| 31 | // expected-warning@-4 {{ms_struct may not produce Microsoft-compatible layouts for classes with base classes or virtual functions}} |
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| 32 | #endif |
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| 33 | virtual void foo(); |
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| 34 | long long n; |
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| 35 | }; |
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| 36 | |
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| 37 | static_assert(__builtin_offsetof(C, n) == 8, |
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| 38 | "long long field in ms_struct should be 8-byte aligned"); |
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| 39 | |
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