e0ac46e69d
This reverts commit d618f1c3b12effd0c2bdb7d02108d3551f389d3d. This commit wasn't reviewed ahead of time and significant concerns were raised immediately after it landed. According to our developer policy this warrants immediate revert of the commit. https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy Differential Revision: https://reviews.llvm.org/D155509
21 lines
875 B
C++
21 lines
875 B
C++
// RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin9 -analyzer-checker=core,osx -verify -fblocks %s
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// expected-no-diagnostics
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// Test handling of OSAtomicCompareAndSwap when C++ inserts "no-op" casts and we
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// do a forced load and binding to the environment on an expression that would regularly
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// not have an environment binding. This previously triggered a crash (<rdar://problem/9339920>).
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// NOTE: It is critical that the function called is OSAtomicCompareAndSwapIntBarrier.
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bool OSAtomicCompareAndSwapIntBarrier( int __oldValue, int __newValue, volatile int *__theValue ) ;
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static int _rdar9339920_x = 0;
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int rdar9339920_aux();
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int rdar9339920_test() {
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int rdar9339920_x = rdar9339920_aux();
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if (rdar9339920_x != _rdar9339920_x) {
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if (OSAtomicCompareAndSwapIntBarrier(_rdar9339920_x, rdar9339920_x, &_rdar9339920_x))
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return 1;
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}
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return 0;
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}
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