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17 Commits

Author SHA1 Message Date
Ted Kremenek c177d9faf5 Fix regression in LiveVariables when reasoning about variables captured by blocks. 
llvm-svn: 147116
 2011-12-22 00:46:32 +00:00
Jordy Rose c49ec53e29 [analyzer] Move the knowledge of whether or not GC is enabled for the current analysis from CFRefCount to ExprEngine. 
Remove TransferFuncs from ExprEngine and AnalysisConsumer.

Demote RetainReleaseChecker to a regular checker, and give it the name osx.cocoa.RetainCount (class name change coming shortly). Update tests accordingly.

llvm-svn: 138998
 2011-09-02 05:55:19 +00:00
Ted Kremenek 3f955e6d89 [analyzer] rename all experimental checker packages to have 'experimental' be the common root package. 
llvm-svn: 136835
 2011-08-03 23:14:55 +00:00
Ted Kremenek a4a57c10da Re-enable the IdempotentOperations checker for --analyze, and put it and the DeadStores checker into the "deadcode" group. 
llvm-svn: 127531
 2011-03-12 06:14:28 +00:00
Argyrios Kyrtzidis 3e7ab19863 [analyzer] Move the DeadStores checker out of the 'core' package. 
-Now it gets enabled with '-analyzer-checker=DeadStores'.
-The driver passes the above flag by default.

llvm-svn: 126612
 2011-02-28 01:27:12 +00:00
Argyrios Kyrtzidis b388f77ad9 [analyzer] Remove '-analyzer-experimental-internal-checks' flag, it doesn't have any checkers associated with it anymore. 
llvm-svn: 126440
 2011-02-24 21:43:08 +00:00
Argyrios Kyrtzidis af45aca670 [analyzer] Use the new registration mechanism on the non-path-sensitive-checkers: 
DeadStoresChecker
  ObjCMethSigsChecker
  ObjCUnusedIvarsChecker
  SizeofPointerChecker
  ObjCDeallocChecker
  SecuritySyntaxChecker

llvm-svn: 125779
 2011-02-17 21:39:33 +00:00
Ted Kremenek e57d88c6a3 Add test case for dead stores checker to not flag dead assignments to 'self' within a nested assignment. 
llvm-svn: 124681
 2011-02-01 20:45:26 +00:00
Ted Kremenek 5c97605c1d Fix a horrible bug in all dataflow analyses that use CFGRecStmtVisitor (including live variables analysis). 
We shouldn't recurse into CompoundStmts since they are already inlined in the CFG.  This could result in
bogus dead stores warnings (among other things).

llvm-svn: 117162
 2010-10-22 22:08:32 +00:00
Ted Kremenek b4331a9908 Dead emit dead store warnings when assigning nil to an ObjC object 
pointer (for defensive programming).  This matches the behavior with
assigning NULL to a regular pointer.  Fixes <rdar://problem/7631278>.

llvm-svn: 96985
 2010-02-23 21:19:33 +00:00
Ted Kremenek d519b83757 Rename -cc1 option '-warn-dead-stores' to '-analyzer-check-dead-stores'. 
llvm-svn: 95343
 2010-02-05 01:52:40 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. 
- This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

llvm-svn: 91446
 2009-12-15 20:14:24 +00:00
Zhongxing Xu 27f686f8ec Replace clang-cc with clang -cc1. 
llvm-svn: 91272
 2009-12-14 06:34:20 +00:00
Ted Kremenek 4ef13f8ac9 Add clang-cc option "--analyzer-experimental-internal-checks". This 
option enables new "internal" checks that will eventually be turned on
by default but still require broader testing.

llvm-svn: 88671
 2009-11-13 18:46:29 +00:00
Daniel Dunbar a45cf5b6b0 Rename clang to clang-cc. 
Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
 2009-03-24 02:24:46 +00:00
Daniel Dunbar 34fc92fdc2 Add -analyze action to run static analyzer, instead of inferring from 
individual checker options.

llvm-svn: 62634
 2009-01-20 23:17:32 +00:00
Ted Kremenek 8044046efb Fix a bug in the dead stores checker reported in the following email: 
http://lists.cs.uiuc.edu/pipermail/cfe-dev/2008-July/002157.html

Essentially the observer mechanism in LiveVariables was observing block-level
expressions multiple times, leading to a case where the dead store checker could
see a value as dead when it was really live.

llvm-svn: 53115
 2008-07-03 22:25:27 +00:00