forked from OSchip/llvm-project
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
// RUN: %clang_cc1 -std=c11 -triple i386-apple-darwin9 -fsyntax-only -verify %s
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// expected-no-diagnostics
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#define STATIC_ASSERT(cond) _Static_assert(cond, #cond)
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// PR3433
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#define CHECK_ALIGNMENT(type, name, abi, pref) \
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type name; \
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STATIC_ASSERT(__alignof__(name) == pref); \
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STATIC_ASSERT(__alignof__(type) == pref); \
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STATIC_ASSERT(_Alignof(type) == abi)
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CHECK_ALIGNMENT(double, g_double, 4, 8);
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CHECK_ALIGNMENT(long long, g_longlong, 4, 8);
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CHECK_ALIGNMENT(unsigned long long, g_ulonglong, 4, 8);
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CHECK_ALIGNMENT(_Complex double, g_complexdouble, 4, 8);
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// PR6362
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struct __attribute__((packed))
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packed_struct {
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unsigned int a;
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};
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CHECK_ALIGNMENT(struct packed_struct, g_packedstruct, 1, 1);
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STATIC_ASSERT(__alignof__(g_packedstruct.a) == 1);
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typedef double arr3double[3];
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CHECK_ALIGNMENT(arr3double, g_arr3double, 4, 8);
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enum big_enum { x = 18446744073709551615ULL };
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CHECK_ALIGNMENT(enum big_enum, g_bigenum, 4, 8);
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// PR5637
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#define ALIGNED(x) __attribute__((aligned(x)))
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typedef ALIGNED(2) struct {
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char a[3];
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} aligned_before_struct;
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STATIC_ASSERT(sizeof(aligned_before_struct) == 3);
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STATIC_ASSERT(sizeof(aligned_before_struct[1]) == 4);
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STATIC_ASSERT(sizeof(aligned_before_struct[2]) == 6);
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STATIC_ASSERT(sizeof(aligned_before_struct[2][1]) == 8);
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STATIC_ASSERT(sizeof(aligned_before_struct[1][2]) == 6);
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typedef struct ALIGNED(2) {
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char a[3];
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} aligned_after_struct;
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STATIC_ASSERT(sizeof(aligned_after_struct) == 4);
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STATIC_ASSERT(sizeof(aligned_after_struct[1]) == 4);
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STATIC_ASSERT(sizeof(aligned_after_struct[2]) == 8);
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STATIC_ASSERT(sizeof(aligned_after_struct[2][1]) == 8);
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STATIC_ASSERT(sizeof(aligned_after_struct[1][2]) == 8);
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