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| author | Ted Kremenek <kremenek@apple.com> | 2010-11-11 23:10:10 +0000 |
|---|---|---|
| committer | Ted Kremenek <kremenek@apple.com> | 2010-11-11 23:10:10 +0000 |
| commit | 843c53828fa7ae1f6e121d9ab5352054173ea31d (patch) | |
| tree | 9a7ba3d85ca67afc2b3fff3ea6afe48f05a1c956 /clang/test/Analysis | |
| parent | 667429d6b184a00e039de025c8f6fc61b2188b71 (diff) | |
| download | bcm5719-llvm-843c53828fa7ae1f6e121d9ab5352054173ea31d.tar.gz bcm5719-llvm-843c53828fa7ae1f6e121d9ab5352054173ea31d.zip | |
RegionStore/BasicStore: do not return UndefinedVal for accesses to concrete addresses; instead return UnknownVal. This
leads it up to checkers (e.g., DereferenceChecker) to guard against illegal accesses (e.g., null dereferences).
Fixes PR 5272 and <rdar://problem/6839683>.
llvm-svn: 118852
Diffstat (limited to 'clang/test/Analysis')
| -rw-r--r-- | clang/test/Analysis/misc-ps.m | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/clang/test/Analysis/misc-ps.m b/clang/test/Analysis/misc-ps.m index 12e51023a9e..9b923bf0f80 100644 --- a/clang/test/Analysis/misc-ps.m +++ b/clang/test/Analysis/misc-ps.m @@ -1179,3 +1179,17 @@ void baz_pr8440(int n) saved_pr8440.data[i] = foo_pr8440(); // no-warning } +// Support direct accesses to non-null memory. Reported in: +// PR 5272 +// <rdar://problem/6839683> +int test_direct_address_load() { + int *p = (int*) 0x4000; + return *p; // no-warning +} + +void pr5272_test() { + struct pr5272 { int var2; }; + (*(struct pr5272*)0xBC000000).var2 = 0; // no-warning + (*(struct pr5272*)0xBC000000).var2 += 2; // no-warning +} + |
