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9 Commits

Author SHA1 Message Date
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