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15 Commits

Author SHA1 Message Date
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 49c79790de Rework checker "packages" and groups to be more hierarchical. 
llvm-svn: 128187
 2011-03-24 00:28:47 +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 9eb02dfa89 [analyzer] Remove '-analyzer-check-objc-mem' flag, the nominee for best misnomer award. 
llvm-svn: 126676
 2011-02-28 19:49:42 +00:00
Argyrios Kyrtzidis 2c49ec7f1d [analyzer] Migrate NSErrorChecker and DereferenceChecker to CheckerV2. 
They cooperate in that NSErrorChecker listens for ImplicitNullDerefEvent events that
DereferenceChecker can dispatch.
ImplicitNullDerefEvent is when we dereferenced a location that may be null.

llvm-svn: 126659
 2011-02-28 17:36:18 +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 c08d89e6c2 Allow passing a list of comma separated checker names to -analyzer-checker, e.g: 
-analyzer-checker=cocoa,unix

llvm-svn: 126372
 2011-02-24 08:42:20 +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
Argyrios Kyrtzidis 2d3905ffac [analyzer] Use the new registration mechanism on some of the experimental checks. These are: 
CStringChecker
   ChrootChecker
   MallocChecker
   PthreadLockChecker
   StreamChecker
   UnreachableCodeChecker

MallocChecker creates implicit dependencies between checkers and needs to be handled differently.

llvm-svn: 125598
 2011-02-15 21:25:03 +00:00
Ted Kremenek 9865d7f0e6 Don't report dead stores on unreachable code paths. Fixes <rdar://problem/8405222>. 
llvm-svn: 125415
 2011-02-11 23:24:26 +00:00
Tom Care ea53e82c78 UnreachableCodeChecker cleanup and improvements 
- Fixed some iterator style issues
- Don't process blocks that have been visited already
- Fixed a case where a unreachable block cycle was not reported
- Minor test case changes
- Added one test case from flow-sensitive version of the check. More coming.

llvm-svn: 115861
 2010-10-06 23:02:25 +00:00
Tom Care 16ba7c652e Fixed logic error in UnreachableCodeChecker's marking algorithm that would sometimes allow for multiple sequential statements to be flagged. 
llvm-svn: 110353
 2010-08-05 17:53:44 +00:00
Tom Care 29a6250bf0 Added some false positive checking to UnreachableCodeChecker 
- Allowed reporting of dead macros
- Added path walking function to search for false positives in conditional statements
- Updated some affected tests
- Added some false positive test cases

llvm-svn: 109561
 2010-07-27 23:30:21 +00:00
Jordy Rose 55442abee6 Don't warn about unreachable code if the block starts with __builtin_unreachable(). 
The next step is to warn if a block labeled unreachable is, in fact, reachable. Somewhat related to PR810.

llvm-svn: 109487
 2010-07-27 03:39:53 +00:00
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