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23 Commits

Author SHA1 Message Date
David Blaikie
aa347f9392 Removing a bunch of dead returns/breaks after llvm_unreachables. 
llvm-svn: 140407
 2011-09-23 20:26:49 +00:00
David Blaikie
83d382b1ca Switch assert(0/false) llvm_unreachable. 
llvm-svn: 140367
 2011-09-23 05:06:16 +00:00
Jordy Rose
1fad663126 [analyzer] Change the check::RegionChanges callback to include the regions explicitly requested for invalidation. 
Also, allow CallOrObjCMessage to wrap a CXXConstructExpr as well.

Finally, this allows us to remove the clunky whitelisting system from CFRefCount/RetainReleaseChecker. Slight regression due to CXXNewExprs not yet being handled in post-statement callbacks (PR forthcoming).

llvm-svn: 138716
 2011-08-27 22:51:26 +00:00
Ted Kremenek
001fd5b498 Rename GRState to ProgramState, and cleanup some code formatting along the way. 
llvm-svn: 137665
 2011-08-15 22:09:50 +00:00
Ted Kremenek
5ef32dbf2a Cleanup various declarations of 'Stmt*' to be 'Stmt *', etc. in libAnalyzer and libStaticAnalyzer[*]. It was highly inconsistent, and very ugly to look at. 
llvm-svn: 137537
 2011-08-12 23:37:29 +00:00
Ted Kremenek
8df44b2632 [analyzer] Introduce new MemRegion, "TypedValueRegion", so that we can separate TypedRegions that implement getValueType() from those that don't. 
Patch by Olaf Krzikalla!

llvm-svn: 137498
 2011-08-12 20:02:48 +00:00
Ted Kremenek
c91ca30b4c [analyzer] Change SymbolReaper to store region roots implied by the Environment, allowing it be queried when 
determining if symbols derived from regions are still live.

llvm-svn: 137005
 2011-08-06 00:29:57 +00:00
Ted Kremenek
ae16d1cc67 [analyzer] Add StoreManager::includedInBindings() to to query whether a region is used in any bindings. 
llvm-svn: 136416
 2011-07-28 23:07:46 +00:00
Ted Kremenek
6b1a761f3e [analyzer] Add safety checking in RegionStoreManager for string literal underruns. 
llvm-svn: 136415
 2011-07-28 23:07:43 +00:00
Chris Lattner
0e62c1cc0b remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports 
them into the clang namespace.

llvm-svn: 135852
 2011-07-23 10:55:15 +00:00
Jordy Rose
4d3c1511ac [analyzer] Use UnknownVal when default-initializing arrays whose element types we don't model, to distinguish them from uninitialized arrays (PR10163). 
llvm-svn: 133937
 2011-06-27 20:36:38 +00:00
Ted Kremenek
f377cb82f9 Teach RegionStore not to symbolic array values whose indices it cannot reason about. 
llvm-svn: 131702
 2011-05-19 23:37:58 +00:00
Ted Kremenek
aa181174e7 Augment retain/release checker to not warn about tracked objects passed as arguments to C++ constructors. This is a stop-gap measure for Objective-C++ code that uses smart pointers to manage reference counts. 
llvm-svn: 130711
 2011-05-02 19:42:42 +00:00
Ted Kremenek
4f939da02d RegionStoreManager::invalidateRegions: treat classes the same as structs. 
llvm-svn: 129333
 2011-04-12 00:44:31 +00:00
Ted Kremenek
850d35be16 Fix RegionStore bug when doing a field load whose parent is also a field assigned a LazyCompoundValue. Fixes <rdar://problem/9163742> and PR 9522. 
llvm-svn: 128783
 2011-04-03 04:09:15 +00:00
Ted Kremenek
3e5ad5932e Tweak RegionStore's handling of lazy compound values to use the 'Default' versus 'Direct' binding key, thus allowing specific elements of an array/struct to be overwritten without 
invalidating the entire binding.  Fixes PR 9455.

llvm-svn: 127796
 2011-03-17 03:51:51 +00:00
Ted Kremenek
4bb6c6b37e static analyzer: Fix use-after-free bug in RegionStore involving LazyCompoundValueData not reference counting Store objects. 
llvm-svn: 127288
 2011-03-08 23:18:00 +00:00
Ted Kremenek
fda3687515 Add 'StoreRef' smart pointer to allow more fine-grain memory lifetime 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.

llvm-svn: 126012
 2011-02-19 01:59:33 +00:00
Zhanyong Wan
85a203ebdd Makes most methods in SVals.h conform to the naming guide. Reviewed 
by kremenek.

llvm-svn: 125687
 2011-02-16 21:13:32 +00:00
Ted Kremenek
7b3f290d61 Remove RegionStoreManager::evalBinOp(), which is now handled by the SValBuilder. 
llvm-svn: 125396
 2011-02-11 19:48:19 +00:00
Ted Kremenek
eddeba0dae Rename 'InvalidateRegions()' to 'invalidateRegions()'. 
llvm-svn: 125395
 2011-02-11 19:48:15 +00:00
Ted Kremenek
f8cbac4b91 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.

llvm-svn: 125251
 2011-02-10 01:03:03 +00:00
Argyrios Kyrtzidis
fa0734ec4f [analyzer] Move the files in lib/StaticAnalyzer to lib/StaticAnalyzer/Core. 
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.

llvm-svn: 125124
 2011-02-08 22:30:36 +00:00