| 1 | // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin9 -analyzer-checker=core,osx -analyzer-store=region -verify -fblocks -analyzer-opt-analyze-nested-blocks %s |
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| 2 | // expected-no-diagnostics |
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| 3 | |
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| 4 | // Test handling of OSAtomicCompareAndSwap when C++ inserts "no-op" casts and we |
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| 5 | // do a forced load and binding to the environment on an expression that would regularly |
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| 6 | // not have an environment binding. This previously triggered a crash (<rdar://problem/9339920>). |
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| 7 | // NOTE: It is critical that the function called is OSAtomicCompareAndSwapIntBarrier. |
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| 8 | bool OSAtomicCompareAndSwapIntBarrier( int __oldValue, int __newValue, volatile int *__theValue ) ; |
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| 9 | static int _rdar9339920_x = 0; |
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| 10 | int rdar9339920_aux(); |
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| 11 | |
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| 12 | int rdar9339920_test() { |
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| 13 | int rdar9339920_x = rdar9339920_aux(); |
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| 14 | if (rdar9339920_x != _rdar9339920_x) { |
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| 15 | if (OSAtomicCompareAndSwapIntBarrier(_rdar9339920_x, rdar9339920_x, &_rdar9339920_x)) |
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| 16 | return 1; |
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| 17 | } |
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| 18 | return 0; |
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| 19 | } |
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| 20 | |
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| 21 | |
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