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8 Commits

Author SHA1 Message Date
Tom Care cba9f517ac Added an path-sensitive unreachable code checker to the experimental analyzer checks. 
- Created a new class to do post-analysis
- Updated several test cases with unreachable code to expect a warning
- Added some general tests

llvm-svn: 109286
 2010-07-23 23:04:53 +00:00
Jordy Rose 134a236a14 Add a new path-sensitive checker for functions in <string.h>, for both null-terminated strings and memory blocks. Currently only checks memcpy(), memmove(), and bcopy(), but this is intended to be expanded soon. 
llvm-svn: 107722
 2010-07-06 23:11:01 +00:00
Zhongxing Xu 0fa7cddbab Add StreamChecker. This checker models and checks stream manipulation functions. 
This is the start.

llvm-svn: 106082
 2010-06-16 05:38:05 +00:00
Zhongxing Xu 1225aacacf Merge StackAddrLeakChecker and ReturnStackAddressChecker. 
llvm-svn: 105687
 2010-06-09 06:08:24 +00:00
Zhongxing Xu 87e7fc5dc2 Add a checker check if a global variable holds a local variable's address after 
the function call is left where the local variable is declared.

llvm-svn: 105602
 2010-06-08 10:00:00 +00:00
Zhongxing Xu 658dd8b176 CastSizeChecker checks when casting a malloc'ed symbolic region to type T, 
whether the size of the symbolic region is a multiple of the size of T.
Fixes PR6123 and PR7217.

llvm-svn: 104584
 2010-05-25 04:59:19 +00:00
Ted Kremenek 6296e0990b Move 'LocalCheckers.h' to the 'Checkers' subdirectory. 
llvm-svn: 94609
 2010-01-26 22:59:55 +00:00
Ted Kremenek d6b8708643 Split libAnalysis into two libraries: libAnalysis and libChecker. 
(1) libAnalysis is a generic analysis library that can be used by
    Sema.  It defines the CFG, basic dataflow analysis primitives, and
    inexpensive flow-sensitive analyses (e.g. LiveVariables).

(2) libChecker contains the guts of the static analyzer, incuding the
    path-sensitive analysis engine and domain-specific checks.

Now any clients that want to use the frontend to build their own tools
don't need to link in the entire static analyzer.

This change exposes various obvious cleanups that can be made to the
layout of files and headers in libChecker.  More changes pending.  :)

This change also exposed a layering violation between AnalysisContext
and MemRegion.  BlockInvocationContext shouldn't explicitly know about
BlockDataRegions.  For now I've removed the BlockDataRegion* from
BlockInvocationContext (removing context-sensitivity; although this
wasn't used yet).  We need to have a better way to extend
BlockInvocationContext (and any LocationContext) to add
context-sensitivty.

llvm-svn: 94406
 2010-01-25 04:41:41 +00:00