| Ted Kremenek | 6b4f567 | 2011-04-27 05:34:09 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -analyze -analyzer-checker=core,osx -analyzer-store=region -verify -fblocks -analyzer-opt-analyze-nested-blocks %s |
| Andy Gibbs | 8e8fb3b | 2012-10-19 12:44:48 +0000 | [diff] [blame] | 2 | // expected-no-diagnostics |
| Ted Kremenek | 6b4f567 | 2011-04-27 05:34:09 +0000 | [diff] [blame] | 3 | |
| 4 | // Test handling of OSAtomicCompareAndSwap when C++ inserts "no-op" casts and we |
| 5 | // do a forced load and binding to the environment on an expression that would regularly |
| 6 | // not have an environment binding. This previously triggered a crash (<rdar://problem/9339920>). |
| 7 | // NOTE: It is critical that the function called is OSAtomicCompareAndSwapIntBarrier. |
| 8 | bool OSAtomicCompareAndSwapIntBarrier( int __oldValue, int __newValue, volatile int *__theValue ) ; |
| 9 | static int _rdar9339920_x = 0; |
| 10 | int rdar9339920_aux(); |
| 11 | |
| 12 | int rdar9339920_test() { |
| 13 | int rdar9339920_x = rdar9339920_aux(); |
| 14 | if (rdar9339920_x != _rdar9339920_x) { |
| 15 | if (OSAtomicCompareAndSwapIntBarrier(_rdar9339920_x, rdar9339920_x, &_rdar9339920_x)) |
| 16 | return 1; |
| 17 | } |
| 18 | return 0; |
| 19 | } |
| 20 | |