80de487e03dd0f44e4572e2122ebc1aa6a3961f5 |
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29-Aug-2012 |
Anna Zaks <ganna@apple.com> |
[analyzer] Improved diagnostic pruning for calls initializing values. This heuristic addresses the case when a pointer (or ref) is passed to a function, which initializes the variable (or sets it to something other than '0'). On the branch where the inlined function does not set the value, we report use of undefined value (or NULL pointer dereference). The access happens in the caller and the path through the callee would get pruned away with regular path pruning. To solve this issue, we previously disabled diagnostic pruning completely on undefined and null pointer dereference checks, which entailed very verbose diagnostics in most cases. Furthermore, not all of the undef value checks had the diagnostic pruning disabled. This patch implements the following heuristic: if we pass a pointer (or ref) to the region (on which the error is reported) into a function and it's value is either undef or 'NULL' (and is a pointer), do not prune the function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162863 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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a1f81bb0e55749a1414b1b5124bb83b9052ff2ac |
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28-Aug-2012 |
Jordan Rose <jordan_rose@apple.com> |
[analyzer] Rename addTrackNullOrUndefValueVisitor to trackNullOrUndefValue. This helper function (in the clang::ento::bugreporter namespace) may add more than one visitor, but conceptually it's tracking a single use of a null or undefined value and should do so as best it can. Also, the BugReport parameter has been made a reference to underscore that it is non-optional. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162720 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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685379965c1b105ce89cf4f6c60810932b7f4d0d |
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04-Aug-2012 |
Jordan Rose <jordan_rose@apple.com> |
[analyzer] When a symbol is null, we should track its constraints. Because of this, we would previously emit NO path notes when a parameter is constrained to null (because there are no stores). Now we show where we made the assumption, which is much more useful. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161280 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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ce56fd3d6ddf3f1b7ae1a3ca3dd4a8768222594c |
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06-Jun-2012 |
Ted Kremenek <kremenek@apple.com> |
Disable path pruning for UndefResultChecker. It turns out we usually want to see more of the path to discover how a value was used uninitialized. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158048 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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76aadc346c3a4c363238a1e1232f324c3355d9e0 |
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09-Mar-2012 |
Ted Kremenek <kremenek@apple.com> |
[analyzer] Implement basic path diagnostic pruning based on "interesting" symbols and regions. Essentially, a bug centers around a story for various symbols and regions. We should only include the path diagnostic events that relate to those symbols and regions. The pruning is done by associating a set of interesting symbols and regions with a BugReporter, which can be modified at BugReport creation or by BugReporterVisitors. This patch reduces the diagnostics emitted in several of our test cases. I've vetted these as having desired behavior. The only regression is a missing null check diagnostic for the return value of realloc() in test/Analysis/malloc-plist.c. This will require some investigation to fix, and I have added a FIXME to the test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152361 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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f7ccbad5d9949e7ddd1cbef43d482553b811e026 |
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05-Feb-2012 |
Dylan Noblesmith <nobled@dreamwidth.org> |
Basic: import SmallString<> into clang namespace (I was going to fix the TODO about DenseMap too, but that would break self-host right now. See PR11922.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149799 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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6f42b62b6194f53bcbc349f5d17388e1936535d7 |
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05-Feb-2012 |
Dylan Noblesmith <nobled@dreamwidth.org> |
Basic: import OwningPtr<> into clang namespace git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149798 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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8fe83e1df954d72c0f4ffc15d20a5222ec151c21 |
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04-Feb-2012 |
Benjamin Kramer <benny.kra@googlemail.com> |
Move a method from IdentifierTable.h out of line and remove the SmallString include. Fix all the transitive include users. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149783 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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8bef8238181a30e52dea380789a7e2d760eac532 |
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26-Jan-2012 |
Ted Kremenek <kremenek@apple.com> |
Change references to 'const ProgramState *' to typedef 'ProgramStateRef'. At this point this is largely cosmetic, but it opens the door to replace ProgramStateRef with a smart pointer that more eagerly acts in the role of reclaiming unused ProgramState objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149081 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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5eca482fe895ea57bc82410222e6426c09e63284 |
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06-Jan-2012 |
Ted Kremenek <kremenek@apple.com> |
[analyzer] Make the entries in 'Environment' context-sensitive by making entries map from (Stmt*,LocationContext*) pairs to SVals instead of Stmt* to SVals. This is needed to support basic IPA via inlining. Without this, we cannot tell if a Stmt* binding is part of the current analysis scope (StackFrameContext) or part of a parent context. This change introduces an uglification of the use of getSVal(), and thus takes two steps forward and one step back. There are also potential performance implications of enlarging the Environment. Both can be addressed going forward by refactoring the APIs and optimizing the internal representation of Environment. This patch mainly introduces the functionality upon when we want to build upon (and clean up). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147688 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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50bbc165b063155cc23c360deb7b865502e068e2 |
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20-Aug-2011 |
Anna Zaks <ganna@apple.com> |
Static Analyzer Diagnostics: Kill the addVisitorCreator(callbackTy, void*) API in favor of addVisitor(BugReporterVisitor*). 1) Create a header file to expose the predefined visitors. And move the parent(BugReporterVisitor) there as well. 2) Remove the registerXXXVisitor functions - the Visitor constructors/getters can be used now to create the object. One exception is registerVarDeclsLastStore(), which registers more then one visitor, so make it static member of FindLastStoreBRVisitor. 3) Modify all the checkers to use the new API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138126 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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e172e8b9e7fc67d7d03589af7e92fe777afcf33a |
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18-Aug-2011 |
Anna Zaks <ganna@apple.com> |
Remove EnhancedBugReport and RangedBugReport - pull all the extra functionality they provided into their parent BugReport. The only functional changes are: made getRanges() non const - it adds default range to Ranges if none are supplied, made getStmt() private, which was another FIXME. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137894 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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18c66fdc3c4008d335885695fe36fb5353c5f672 |
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16-Aug-2011 |
Ted Kremenek <kremenek@apple.com> |
Rename GRState to ProgramState, and cleanup some code formatting along the way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137665 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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ec8605f1d7ec846dbf51047bfd5c56d32d1ff91c |
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01-Mar-2011 |
Argyrios Kyrtzidis <akyrtzi@gmail.com> |
[analyzer] Rename CheckerV2 -> Checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126726 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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180e03f9761aa55b5adca430706595e1bbb79c4d |
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28-Feb-2011 |
Argyrios Kyrtzidis <akyrtzi@gmail.com> |
[analyzer] Migrate UndefResultChecker to CheckerV2. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126614 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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9b663716449b618ba0390b1dbebc54fa8e971124 |
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10-Feb-2011 |
Ted Kremenek <kremenek@apple.com> |
Split 'include/clang/StaticAnalyzer' into 'include/clang/StaticAnalyzer/Core' and 'include/clang/StaticAnalyzer/Checkers'. This layout matches lib/StaticAnalyzer, which corresponds to two StaticAnalyzer libraries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125251 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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04291a7c76e16a2dc5433c80c3d13c826bf372dc |
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08-Feb-2011 |
Argyrios Kyrtzidis <akyrtzi@gmail.com> |
[analyzer] lib/StaticAnalyzer/Checkers/ExprEngineInternalChecks.h -> lib/StaticAnalyzer/Checkers/InternalChecks.h git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125121 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
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21142581d55918beed544a757e4af3bb865b1812 |
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23-Dec-2010 |
Ted Kremenek <kremenek@apple.com> |
Chris Lattner has strong opinions about directory layout. :) Rename the 'EntoSA' directories to 'StaticAnalyzer'. Internally we will still use the 'ento' namespace for the analyzer engine (unless there are further sabre rattlings...). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122514 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Checkers/UndefResultChecker.cpp
|