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 2// expected-no-diagnostics 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. 8bool OSAtomicCompareAndSwapIntBarrier( int __oldValue, int __newValue, volatile int *__theValue ) ; 9static int _rdar9339920_x = 0; 10int rdar9339920_aux(); 11 12int 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 21