| 1dc31f5ead63d7197edf6f34a7821b93ea6698a1 |
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23-Oct-2013 |
Jordan Rose <jordan_rose@apple.com> |
[analyzer] Generate a LazyCompoundVal when loading from a union-typed region.
This ensures that variables accessible through a union are invalidated when
the union value is passed to a function. We still don't fully handle union
values, but this should at least quiet some false positives.
PR16596
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193265 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/unions.cpp
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| 8e8fb3be5bd78f0564444eca02b404566a5f3b5d |
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19-Oct-2012 |
Andy Gibbs <andyg1001@hotmail.co.uk> |
Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166280 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/unions.cpp
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| 786e6204e55cc01094a3e86104c82932a65fb2ca |
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11-Oct-2012 |
Jordan Rose <jordan_rose@apple.com> |
Reapply "[analyzer] Treat fields of unions as having symbolic offsets."
This time, actually uncomment the code that's supposed to fix the problem.
This reverts r165671 / 8ceb837585ed973dc36fba8dfc57ef60fc8f2735.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165676 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/unions.cpp
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| 8ceb837585ed973dc36fba8dfc57ef60fc8f2735 |
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11-Oct-2012 |
Eric Christopher <echristo@gmail.com> |
Temporarily Revert "[analyzer] Treat fields of unions as having symbolic offsets."
Author: Jordan Rose <jordan_rose@apple.com>
Date: Wed Oct 10 21:31:21 2012 +0000
[analyzer] Treat fields of unions as having symbolic offsets.
This allows only one field to be active at a time in RegionStore.
This isn't quite the correct behavior for unions, but it at least
would handle the case of "value goes in, value comes out" from the
same field.
RegionStore currently has a number of places where any access to a union
results in UnknownVal being returned. However, it is clearly missing
some cases, or the original issue wouldn't have occurred. It is probably
now safe to remove those changes, but that's a potentially destabilizing
change that should wait for more thorough testing.
Fixes PR14054.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165660 91177308-0d34-0410-b5e6-96231b3b80d8
This reverts commit cf9030e480f77ab349672f00ad302e216c26c92c.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165671 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/unions.cpp
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| cf9030e480f77ab349672f00ad302e216c26c92c |
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10-Oct-2012 |
Jordan Rose <jordan_rose@apple.com> |
[analyzer] Treat fields of unions as having symbolic offsets.
This allows only one field to be active at a time in RegionStore.
This isn't quite the correct behavior for unions, but it at least
would handle the case of "value goes in, value comes out" from the
same field.
RegionStore currently has a number of places where any access to a union
results in UnknownVal being returned. However, it is clearly missing
some cases, or the original issue wouldn't have occurred. It is probably
now safe to remove those changes, but that's a potentially destabilizing
change that should wait for more thorough testing.
Fixes PR14054.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165660 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/unions.cpp
|