Commit Graph

11 Commits

Author SHA1 Message Date
Gabor Horvath efec16307c [analyzer] Bug identification
This patch adds hashes to the plist and html output to be able to identfy bugs
for suppressing false positives or diff results against a baseline. This hash
aims to be resilient for code evolution and is usable to identify bugs in two
different snapshots of the same software. One missing piece however is a 
permanent unique identifier of the checker that produces the warning. Once that
issue is resolved, the hashes generated are going to change. Until that point
this feature is marked experimental, but it is suitable for early adoption.

Differential Revision: http://reviews.llvm.org/D10305 

Original patch by: Bence Babati!

llvm-svn: 251011
2015-10-22 11:53:04 +00:00
Gabor Horvath c18a11397c [Static Analyzer] The name of the checker that reports a bug is added
to the plist output. This check_name field does not guaranteed to be the
same as the name of the checker in the future.

Reviewer: Anna Zaks

Differential Revision: http://reviews.llvm.org/D6841

llvm-svn: 228624
2015-02-09 22:52:26 +00:00
Alp Toker f6a24ce40f Fix a tranche of comment, test and doc typos
llvm-svn: 196510
2013-12-05 16:25:25 +00:00
Jordan Rose 69dd5fce3e [analyzer] Look through ExprWithCleanups to see if an expr's consumed.
We based decisions during analysis and during path generation on whether
or not an expression is consumed, so if a top-level expression has
cleanups it's important for us to look through that.

<rdar://problem/14076125>

llvm-svn: 183368
2013-06-06 01:57:24 +00:00
Jordan Rose b67b7b201f [analyzer; new edges] Ignore self-edges, not all edges with the same location.
The edge optimizer needs to see edges for, say, implicit casts (which have
the same source location as their operand) to uniformly simplify the
entire path. However, we still don't want to produce edges from a statement
to /itself/, which could occur when two nodes in a row have the same
statement location.

This necessitated moving the check for redundant notes to after edge
optimization, since the check relies on notes being adjacent in the path.

<rdar://problem/14061675>

llvm-svn: 183357
2013-06-06 00:12:37 +00:00
Ted Kremenek 40c13431aa "Teach" RetainCountChecker about dispatch_set_context, which can indirectly free its argument later. Fixes <rdar://problem/11059275>.
llvm-svn: 153244
2012-03-22 06:29:41 +00:00
Ted Kremenek 415287d943 Add static analyzer support for new NSArray/NSDictionary/NSNumber literals.
llvm-svn: 152139
2012-03-06 20:06:12 +00:00
John McCall 9b0a7cea0f Make -fobjc-nonfragile-abi the -cc1 default, since it's the
increasingly prevailing case to the point that new features
like ARC don't even support the fragile ABI anymore.

This required a little bit of reshuffling with exceptions
because a check was assuming that ObjCNonFragileABI was
only being set in ObjC mode, and that's actually a bit
obnoxious to do.

Most, though, it involved a perl script to translate a ton
of test cases.

Mostly no functionality change for driver users, although
there are corner cases with disabling language-specific
exceptions that we should handle more correctly now.

llvm-svn: 140957
2011-10-02 01:16:38 +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 6eb83cfacd [analyzer] Add test case for handling of __bridge_transfer that previously resulted in a 'stack address' warning (that was fixed in r138616). Fixes <rdar://problem/10018376>.
llvm-svn: 138710
2011-08-27 21:15:48 +00:00
John McCall 31168b077c Automatic Reference Counting.
Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103
2011-06-15 23:02:42 +00:00