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2011-02-19Add 'StoreRef' smart pointer to allow more fine-grain memory lifetime ↵Ted Kremenek
control of Store objects. This yields a minor memory reduction (for larger functions) on Sqlite at the cost of slightly higher memory usage on some functions because of the increased size of GRState (which can be optimized). I expect the real memory savings from this enhancement will come when we aggressively canabilize more of the ExplodedGraph. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126012 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19[analyzer] Fix crash when analyzing C++ code.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126007 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18[analyzer] Fix crash when analyzing C++ code.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125963 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17[analyzer]Argyrios Kyrtzidis
-Introduce CheckerV2, a set of templates for convenient declaration & registration of checkers. Currently useful just for checkers working on the AST not the path-sensitive ones. -Enhance CheckerManager to actually collect the checkers and turn it into the entry point for running the checkers. -Use the new mechanism for the LLVMConventionsChecker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125778 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Change the representation of GNU ?: expressions to use a different expressionJohn McCall
class and to bind the shared value using OpaqueValueExpr. This fixes an unnoticed problem with deserialization of these expressions where the deserialized form would lose the vital pointer-equality trait; or rather, it fixes it because this patch also does the right thing for deserializing OVEs. Change OVEs to not be a "temporary object" in the sense that copy elision is permitted. This new representation is not totally unawkward to work with, but I think that's really part and parcel with the semantics we're modelling here. In particular, it's much easier to fix things like the copy elision bug and to make the CFG look right. I've tried to update the analyzer to deal with this in at least some obvious cases, and I think we get a much better CFG out, but the printing of OpaqueValueExprs probably needs some work. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125744 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Step #1/N of implementing support for __label__: split labels intoChris Lattner
LabelDecl and LabelStmt. There is a 1-1 correspondence between the two, but this simplifies a bunch of code by itself. This is because labels are the only place where we previously had references to random other statements, causing grief for AST serialization and other stuff. This does cause one regression (attr(unused) doesn't silence unused label warnings) which I'll address next. This does fix some minor bugs: 1. "The only valid attribute " diagnostic was capitalized. 2. Various diagnostics printed as ''labelname'' instead of 'labelname' 3. This reduces duplication of label checking between functions and blocks. Review appreciated, particularly for the cindex and template bits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125733 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Makes most methods in SVals.h conform to the naming guide. ReviewedZhanyong Wan
by kremenek. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125687 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14[analyzer] Overhauling of the checker registration mechanism.Argyrios Kyrtzidis
-Checkers will be defined in the tablegen file 'Checkers.td'. -Apart from checkers, we can define checker "packages" that will contain a collection of checkers. -Checkers can be enabled with -analyzer-checker=<name> and disabled with -analyzer-disable-checker=<name> e.g: Enable checkers from 'cocoa' and 'corefoundation' packages except the self-initialization checker: -analyzer-checker=cocoa -analyzer-checker=corefoundation -analyzer-disable-checker=cocoa.SelfInit -Introduces CheckerManager and CheckerProvider. CheckerProviders get the set of checker names to enable/disable and register them with the CheckerManager which will be the entry point for all checker-related functionality. Currently only the self-initialization checker takes advantage of the new mechanism. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125503 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14[analyzer] Remove ManagerRegistry which is not used. In the future we may ↵Argyrios Kyrtzidis
load analyzer plugins dynamically but registration through static constructors should be avoided. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125502 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-12static analyzer: Also invalidate instance variables of a receiver in a ↵Ted Kremenek
message expression, just as we do with parameters. Fixes <rdar://problem/8725041>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125422 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Add CMake dependencies so that LLVM_USED_LIBS order doesn't matter.Jeffrey Yasskin
I also sorted the tools/driver dependencies since their order no longer matters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125417 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Remove RegionStoreManager::evalBinOp(), which is now handled by the SValBuilder.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125396 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Rename 'InvalidateRegions()' to 'invalidateRegions()'.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125395 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Allow the 'Eng' entry in GRStateManager to be a (possibly null) pointer ↵Ted Kremenek
instead of a reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125362 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10CMake: LLVM_NO_RTTI must be obsolete now!NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125275 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10Run ~GRState() when reclaiming GRStates.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125262 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10static analyzer: Make GRStates reference counted, with reference counts ↵Ted Kremenek
managed by ExplodedNodes. This reduces memory usage of the analyzer on sqlite by another 5%. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125260 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10Split 'include/clang/StaticAnalyzer' into ↵Ted Kremenek
'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
2011-02-09static analyzer: Further reduce the analyzer's memory usage when analyzing ↵Ted Kremenek
sqlite3 by 7-10% by recylcing "uninteresting" ExplodedNodes. The optimization involves eagerly pruning ExplodedNodes from the ExplodedGraph that contain practically no difference between the predecessor and successor nodes. For example, if the state is different between a predecessor and a node, the node is left in. Only for the 'environment' component of the state do we not care if the ExplodedNodes are different. This paves the way for future optimizations where we can reclaim the environment objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125154 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08analyzer, retain/release checker: Remove hack where objects passed in ↵Ted Kremenek
message to 'self' are no longer tracked. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125130 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08[analyzer] Move the files in lib/StaticAnalyzer to lib/StaticAnalyzer/Core.Argyrios Kyrtzidis
Eventually there will also be a lib/StaticAnalyzer/Frontend that will handle initialization and checker registration. Yet another library to avoid cyclic dependencies between Core and Checkers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125124 91177308-0d34-0410-b5e6-96231b3b80d8