| 1 | // RUN: %clang_cc1 -triple aarch64-linux-gnu %s -emit-llvm -o /dev/null -verify |
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| 2 | |
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| 3 | typedef struct { |
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| 4 | int a, b; |
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| 5 | } IntPair; |
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| 6 | |
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| 7 | typedef struct { |
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| 8 | long long a; |
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| 9 | } LongStruct; |
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| 10 | |
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| 11 | typedef int __attribute__((aligned(1))) unaligned_int; |
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| 12 | |
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| 13 | void func(IntPair *p) { |
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| 14 | IntPair res; |
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| 15 | __atomic_load(p, &res, 0); // expected-warning {{misaligned atomic operation may incur significant performance penalty}} |
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| 16 | __atomic_store(p, &res, 0); // expected-warning {{misaligned atomic operation may incur significant performance penalty}} |
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| 17 | __atomic_fetch_add((unaligned_int *)p, 1, 2); // expected-warning {{misaligned atomic operation may incur significant performance penalty}} |
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| 18 | __atomic_fetch_sub((unaligned_int *)p, 1, 3); // expected-warning {{misaligned atomic operation may incur significant performance penalty}} |
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| 19 | } |
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| 20 | |
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| 21 | void func1(LongStruct *p) { |
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| 22 | LongStruct res; |
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| 23 | __atomic_load(p, &res, 0); |
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| 24 | __atomic_store(p, &res, 0); |
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| 25 | __atomic_fetch_add((int *)p, 1, 2); |
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| 26 | __atomic_fetch_sub((int *)p, 1, 3); |
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| 27 | } |
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| 28 | |
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