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168 Commits

Author SHA1 Message Date
DeLesley Hutchins
f489d2b86c Thread-safety analysis: check locks on method calls, operator=, and 
copy constructors.

llvm-svn: 169350
 2012-12-05 01:20:45 +00:00
DeLesley Hutchins
5df82f2155 Thread Safety Analysis: refactor to make more methods accept const pointers, 
adjust checkAccess.  No change in functionality.

llvm-svn: 169348
 2012-12-05 00:52:33 +00:00
Chandler Carruth
3a02247dc9 Sort all of Clang's files under 'lib', and fix up the broken headers 
uncovered.

This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.

I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.

llvm-svn: 169237
 2012-12-04 09:13:33 +00:00
Benjamin Kramer
ea70eb30a0 Pull the Attr iteration parts out of Attr.h, so including DeclBase.h doesn't pull in all the generated Attr code. 
Required to pull some functions out of line, but this shouldn't have a perf impact.
No functionality change.

llvm-svn: 169092
 2012-12-01 15:09:41 +00:00
DeLesley Hutchins
1fe885614d Thread-safety analysis: allow attributes on constructors to refer to 'this'. 
llvm-svn: 165339
 2012-10-05 22:38:19 +00:00
DeLesley Hutchins
10958cae09 Thread-safety analysis: better handling of unreachable blocks. Fixes a bug 
where a call to function marked 'noreturn' is followed by unreachable
implicit destructor calls.

llvm-svn: 164394
 2012-09-21 17:57:00 +00:00
DeLesley Hutchins
fcb0ffa622 Thread-safety analysis: fix bug where shared trylock was treated 
as exclusive.

llvm-svn: 164332
 2012-09-20 23:14:43 +00:00
DeLesley Hutchins
b78aeed26e Thread safety analysis: properly canonicalize calls to virtual methods within 
lock expressions.

llvm-svn: 164324
 2012-09-20 22:18:02 +00:00
DeLesley Hutchins
132f8f6959 Thread-safety analysis: Fix warning when EXCLUSIVE_LOCKS_REQUIRED 
is placed on a function that has no path to the exit block.

llvm-svn: 164244
 2012-09-19 19:49:40 +00:00
DeLesley Hutchins
a15e1b4f63 Thread-safety analysis: fix ICE when EXCLUSIVE_LOCKS_REQUIRED or 
LOCKS_EXCLUDED is used on a method with a name that is is not a simple
identifier.

llvm-svn: 164242
 2012-09-19 19:18:29 +00:00
DeLesley Hutchins
138568b60a Thread-safety analysis: fix bug in expression matching code. 
llvm-svn: 163656
 2012-09-11 23:04:49 +00:00
DeLesley Hutchins
5ff1644e62 Thread-safety analysis: differentiate between two forms of analysis; a precise 
analysis that may give false positives because it is confused by aliasing, and
a less precise analysis that has fewer false positives, but may have false
negatives.  The more precise warnings are enabled by -Wthread-safety-precise.
An additional note clarify the warnings in the precise case.

llvm-svn: 163537
 2012-09-10 19:58:23 +00:00
Chad Rosier
37a8563f36 Ampersand goes with identifier. 
llvm-svn: 163410
 2012-09-07 19:49:55 +00:00
Chad Rosier
78af00f675 Bring buildbots back. Fix scoping issue and coding style from r163397. 
llvm-svn: 163403
 2012-09-07 18:44:15 +00:00
DeLesley Hutchins
a5a00e830a Thread-safety analysis: Add support for selectively turning off warnings 
within part of a particular method.

llvm-svn: 163397
 2012-09-07 17:34:53 +00:00
Roman Divacky
e637711ae0 Dont cast away const needlessly. Found by gcc48 -Wcast-qual. 
llvm-svn: 163325
 2012-09-06 15:59:27 +00:00
DeLesley Hutchins
93b1b031c1 Thread-safety analysis: bugfix for case where a trylock occurs in an 
expression involving temporaries.

llvm-svn: 163237
 2012-09-05 20:01:16 +00:00
DeLesley Hutchins
f5cf7903d9 Thread-safety analysis: fix handling of LOCK_RETURNED attribute so that the 
latest definition of a function is always used when computing lock expressions.

llvm-svn: 163028
 2012-08-31 22:09:53 +00:00
DeLesley Hutchins
3c3d57bc16 Thread-safety analysis: fix handling of string constants in mutex 
expressions, which should be ignored right now.

llvm-svn: 163026
 2012-08-31 21:57:32 +00:00
Ted Kremenek
78094caa56 Fix an assortment of doxygen comment issues found by -Wdocumentation. 
llvm-svn: 162412
 2012-08-22 23:50:41 +00:00
DeLesley Hutchins
0c90c2bc4b Thread-safety-analysis: adds existential quantification over lock 
expressions.  The syntax &MyClass::mutex is interpreted as a
pattern that matches m->mutex for any object m of type MyClass.

llvm-svn: 161691
 2012-08-10 20:29:46 +00:00
DeLesley Hutchins
9b1d72f3e3 Thread safety analysis: refactor to support more sophisticated handling 
of expressions, and better error messages.

llvm-svn: 161690
 2012-08-10 20:19:55 +00:00
DeLesley Hutchins
c9776faa4f Refactor thread safety analysis to use a different data structure 
to track locksets.  This is in preparation for further changes.

llvm-svn: 161680
 2012-08-10 18:39:05 +00:00
Sylvestre Ledru
830885ca64 Fix a typo (the the => the) 
llvm-svn: 160622
 2012-07-23 08:59:39 +00:00
DeLesley Hutchins
868830f727 Thread safety analysis: impove handling of trylock expressions. 
llvm-svn: 160018
 2012-07-10 21:47:55 +00:00
DeLesley Hutchins
09bcefcb6d Thread-safety analysis: eliminate false positives in case where the definition 
duplicates attributes on the declaration.  Also eliminates a false negative in
ReleasableMutexLock.  Fixing this bug required some refactoring.

llvm-svn: 159780
 2012-07-05 21:16:29 +00:00
DeLesley Hutchins
3a8d6cff14 Thread safety analysis: improve handling of smart pointers. 
llvm-svn: 159679
 2012-07-03 19:47:18 +00:00
DeLesley Hutchins
0c1da20bf8 Thread Safety Analysis: handle expressions involving temporaries, 
e.g. ExprWithCleanups.

llvm-svn: 159674
 2012-07-03 18:25:56 +00:00
DeLesley Hutchins
ab0d4e6cd8 Thread safety analysis: fixed bug that occurs when very silly people 
use scoped_lockable without putting unlock_function on the
destructor.

llvm-svn: 159609
 2012-07-02 22:26:29 +00:00
DeLesley Hutchins
6e6dbb7618 Thread safety analysis: fixed incorrect error message at the end of a locks_required function. 
llvm-svn: 159607
 2012-07-02 22:16:54 +00:00
DeLesley Hutchins
2a15baf968 Thread safety analysis: don't warn in case of duplicate annotation. 
llvm-svn: 159606
 2012-07-02 22:12:12 +00:00
DeLesley Hutchins
c4a6e51596 Thread Safety Analysis: turn off checking within trylock functions. 
llvm-svn: 159601
 2012-07-02 21:59:24 +00:00
DeLesley Hutchins
d162c91b1a Thread safety analysis: support release() function on scoped 
lockable objects.

llvm-svn: 159387
 2012-06-28 22:42:48 +00:00
DeLesley Hutchins
49979f2e38 Thread safety analysis: implement lock_returned attribute. 
llvm-svn: 159152
 2012-06-25 18:33:18 +00:00
DeLesley Hutchins
ebbf77016d Thread safety analysis: fixes a bug in which locksets are not handled 
properly if there is a join point in the control flow graph that involves
a trylock.  Also changes the source locations of some warnings to be
more consistent.

llvm-svn: 159008
 2012-06-22 17:07:28 +00:00
DeLesley Hutchins
8c9d9579c4 Refactor the thread safety analysis so that it is easier to do 
path-sensitive analysis like handling of trylock expressions.

llvm-svn: 155137
 2012-04-19 16:48:43 +00:00
John McCall
113bee0536 Remove BlockDeclRefExpr and introduce a bit on DeclRefExpr to 
track whether the referenced declaration comes from an enclosing
local context.  I'm amenable to suggestions about the exact meaning
of this bit.

llvm-svn: 152491
 2012-03-10 09:33:50 +00:00
DeLesley Hutchins
e2a3f75a12 Thread safety analysis: expand set of expressions that can be used to denote locks. 
llvm-svn: 151956
 2012-03-02 23:36:05 +00:00
DeLesley Hutchins
a2587ef26d Thread safety analysis: handle CFG blocks which call functions marked as noreturn. 
llvm-svn: 151944
 2012-03-02 22:02:58 +00:00
DeLesley Hutchins
c2286f6402 Thread-safety analysis: Disable checking inside constructors, destructors, lock, and unlock functions 
llvm-svn: 150701
 2012-02-16 17:13:43 +00:00
DeLesley Hutchins
bc8ffdb68c Thread-Safety: added support for 'this' as a lock expression. 
llvm-svn: 150700
 2012-02-16 17:03:24 +00:00
Richard Smith
922866783b Thread safety analysis: 
* When we detect that a CFG block has inconsistent lock sets, point the
   diagnostic at the location where we found the inconsistency, and point a note
   at somewhere the inconsistently-locked mutex was locked.
 * Fix the wording of the normal (non-loop, non-end-of-function) case of this
   diagnostic to not suggest that the mutex is going out of scope.
 * Fix the diagnostic emission code to keep a warning and its note together when
   sorting the diagnostics into source location order.

llvm-svn: 149669
 2012-02-03 04:45:26 +00:00
Richard Smith
815b29d7c9 Thread safety analysis: at a CFG join point between a block terminating in a 
'continue' and another block, prefer the lockset from the other block, and
diagnose the 'continue' block as being the end of a loop.

llvm-svn: 149666
 2012-02-03 03:30:07 +00:00
DeLesley Hutchins
68f7b1a647 Handle thread safety attributes on functions with separate definitions and declarations. 
llvm-svn: 148599
 2012-01-20 23:24:41 +00:00
DeLesley Hutchins
9d53033de6 Thread safety analysis: added support for trylock attribute. 
llvm-svn: 147672
 2012-01-06 19:16:50 +00:00
DeLesley Hutchins
9b7022e570 Added LocalVariableMap 
llvm-svn: 147670
 2012-01-06 18:36:09 +00:00
DeLesley Hutchins
714296cb31 Support for thread safety attributes on functions 
llvm-svn: 147331
 2011-12-29 00:56:48 +00:00
DeLesley Hutchins
f7faa6a69b This patch extends thread safety analysis with support for the scoped_lockable attribute. 
llvm-svn: 146174
 2011-12-08 20:23:06 +00:00
Ted Kremenek
81ce1c8a99 Rename AnalysisContext to AnalysisDeclContext. Not only is this name more accurate, but it frees up the name AnalysisContext for other uses. 
llvm-svn: 142782
 2011-10-24 01:32:45 +00:00
Ted Kremenek
4b4c51c323 Refactor ThreadSafety to use PostOrderCFGView instead of its own copy (of TopologicallySortedCFG). 
llvm-svn: 142714
 2011-10-22 02:14:27 +00:00
DeLesley Hutchins
f893e8ab87 Added support for thread safety attributes on destructors. 
llvm-svn: 142685
 2011-10-21 20:51:27 +00:00
DeLesley Hutchins
c20905110a Thread safety analysis refactoring: invalid lock expressions. 
llvm-svn: 142666
 2011-10-21 18:10:14 +00:00
DeLesley Hutchins
db917bdea2 Thread safety analysis: add support for attributes on constructors. 
llvm-svn: 142665
 2011-10-21 18:06:53 +00:00
DeLesley Hutchins
3d312b175a Refactoring and code cleanup. 
llvm-svn: 142654
 2011-10-21 16:14:33 +00:00
DeLesley Hutchins
30abeb1680 Substitute for arguments in method calls -- functionality 
llvm-svn: 142267
 2011-10-17 21:38:02 +00:00
DeLesley Hutchins
a088f67bee Substitute for arguments in method calls -- refactoring 
llvm-svn: 142260
 2011-10-17 21:33:35 +00:00
DeLesley Hutchins
08e094aee3 Test commit 
llvm-svn: 140149
 2011-09-20 17:25:59 +00:00
Caitlin Sadowski
086fb95da5 Thread safety: Adding FIXMEs and a couple cleanups 
llvm-svn: 139894
 2011-09-16 00:35:54 +00:00
Caitlin Sadowski
6525fb25cb Thread safety: completeing the implementation of shared/exclusive locks required attributes 
llvm-svn: 139804
 2011-09-15 17:43:08 +00:00
Caitlin Sadowski
af9b7c5f8b Thread safety: refactoring various out of scope warnings to use the same inteface. This eliminates a lot of unnecessary duplicated code. 
llvm-svn: 139801
 2011-09-15 17:25:19 +00:00
Caitlin Sadowski
5b34a2fd6e Thread safety: adding additional documentation to the main thread safety interface, and making the destructor for the thread safety handler pure virtual 
llvm-svn: 139722
 2011-09-14 20:05:09 +00:00
Caitlin Sadowski
787c2a1b09 Thread safety: adding test cases for unparseable lock expressions and expanding the handling of these expressions 
llvm-svn: 139720
 2011-09-14 20:00:24 +00:00
Caitlin Sadowski
eecd273951 Thread safety: small formatting change 
llvm-svn: 139548
 2011-09-12 22:28:41 +00:00
Benjamin Kramer
8a8051f2cd Silence "end of non-void function" warnings with llvm_unreachable and add an assert. 
llvm-svn: 139474
 2011-09-10 21:52:04 +00:00
Caitlin Sadowski
82e2de512e Thread safety: removing unnecessary import and reordering import list 
llvm-svn: 139426
 2011-09-09 23:00:59 +00:00
Caitlin Sadowski
0bef2279fb Thread safety: removing unnecessary import 
llvm-svn: 139425
 2011-09-09 22:49:12 +00:00
Caitlin Sadowski
ff2f3f8105 Thread safety: This patch deals with previously unhandled cases when building lock expressions. We now resolve this expressions, avoid crashing when encountering cast expressions, and have a diagnostic for unresolved lock expressions 
llvm-svn: 139370
 2011-09-09 16:21:55 +00:00
Caitlin Sadowski
33208340bd Thread Safety: Moving the analysis to a new file 
llvm-svn: 139369
 2011-09-09 16:11:56 +00:00