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author | Jordan Rupprecht <rupprecht@google.com> | 2019-05-14 21:58:59 +0000 |
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committer | Jordan Rupprecht <rupprecht@google.com> | 2019-05-14 21:58:59 +0000 |
commit | b35a2aa71f76a334a9c98c0a3c3995b5d902d2b9 (patch) | |
tree | cdff4a5d1a715d4ad622fd8f190128b54bebe440 /test/Analysis/OSAtomic_mac.c | |
parent | 3748d41833787fcbf59cc5624e8d2b042a8991bc (diff) | |
parent | 741e05796da92b46d4f7bcbee00702ff37df6489 (diff) |
Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103upstream/google/stable
git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/OSAtomic_mac.c')
-rw-r--r-- | test/Analysis/OSAtomic_mac.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/Analysis/OSAtomic_mac.c b/test/Analysis/OSAtomic_mac.c new file mode 100644 index 0000000000..b09c71f6c6 --- /dev/null +++ b/test/Analysis/OSAtomic_mac.c @@ -0,0 +1,27 @@ +// RUN: %clang_analyze_cc1 -w -analyzer-checker=core,debug.ExprInspection \ +// RUN: -analyzer-output=text -verify %s + +int OSAtomicCompareAndSwapPtrBarrier(*, *, **); +int OSAtomicCompareAndSwapPtrBarrier() { + // There is some body in the actual header, + // but we should trust our BodyFarm instead. +} + +int *invalidSLocOnRedecl() { + // Was crashing when trying to throw a report about returning an uninitialized + // value to the caller. FIXME: We should probably still throw that report, + // something like "The "compare" part of CompareAndSwap depends on an + // undefined value". + int *b; + OSAtomicCompareAndSwapPtrBarrier(0, 0, &b); // no-crash + return b; +} + +void testThatItActuallyWorks() { + void *x = 0; + int res = OSAtomicCompareAndSwapPtrBarrier(0, &x, &x); + clang_analyzer_eval(res); // expected-warning{{TRUE}} + // expected-note@-1{{TRUE}} + clang_analyzer_eval(x == &x); // expected-warning{{TRUE}} + // expected-note@-1{{TRUE}} +} |