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24341 Commits

Author SHA1 Message Date
Sebastian Redl
f2e0a3077c Fix crashers on unexpected std::initializer_list layouts. Found by inspection. 
llvm-svn: 151456
 2012-02-25 20:51:13 +00:00
Sebastian Redl
dadc06494d Better mangling for new-expressions. Also, although we can't mangle arbitrary initializer lists yet (we will need this), turn the crash into a controlled error. 
llvm-svn: 151455
 2012-02-25 20:51:07 +00:00
Chad Rosier
4c5c8ccf40 Temporarily revert r151288: 
ARM: enable the integrated assembler by default for Darwin. 

llvm-svn: 151454
 2012-02-25 20:32:43 +00:00
Ahmed Charles
b24b9aa298 ArrayRef'ize various functions in the AST/Parser/Sema. 
llvm-svn: 151447
 2012-02-25 11:00:22 +00:00
Richard Smith
2cca7b5ca9 Accept __has_feature(__feature__) as a synonym for __has_feature(feature) (and 
likewise for __has_extension). Patch by Jonathan Sauer!

llvm-svn: 151445
 2012-02-25 10:41:10 +00:00
Richard Smith
2a986117e9 Fix r151443 to only apply C++11's exception for non-static data member access 
in cases where we would otherwise disallow the access, and add a -Wc++98-compat
diagnostic for this C++11 feature.

llvm-svn: 151444
 2012-02-25 10:20:59 +00:00
Richard Smith
eae99680e3 PR11956: C++11's special exception for accessing non-static data members from 
unevaluated operands applies within member functions, too.

llvm-svn: 151443
 2012-02-25 10:04:07 +00:00
Richard Smith
978cc7306c Fix assertion (too few Diag arguments) when diagnosing a deleted operator delete 
llvm-svn: 151442
 2012-02-25 09:42:26 +00:00
Richard Smith
561fb15801 Teach CXXRecordDecl::hasIrrelevantDestructor to check the base classes and 
data members for deleted or user-provided destructors.

Now it's computed in advance, serialize it, and in passing fix all the other
record DefinitionData flags whose serialization was missing.

llvm-svn: 151441
 2012-02-25 07:33:38 +00:00
Richard Smith
e06a2c1893 Fix a regression from r151117: ADL requires that we attempt to complete any 
associated classes, since it can find friend functions declared within them,
but overload resolution does not otherwise require argument types to be
complete.

llvm-svn: 151434
 2012-02-25 06:24:24 +00:00
Chad Rosier
e2c4506979 Prevent llvm.lifetime intrinsics from being emitted at -O0. 
rdar://10921594

llvm-svn: 151430
 2012-02-25 02:56:13 +00:00
Eli Friedman
2495ab08fc Work-in-progress for lambda conversion-to-block operator. Still need to implement the retain+autorelease outside of ARC, and there's a bug that causes the generated code to crash in ARC (which I think is unrelated to my code, although I'm not completely sure). 
llvm-svn: 151428
 2012-02-25 02:48:22 +00:00
Argyrios Kyrtzidis
335c5a42e9 Don't record nested macro expansions in the preprocessing record, 
it can only bring pain when dealing with preprocessor abuse (see: boost).

rdar://10898986

llvm-svn: 151427
 2012-02-25 02:41:16 +00:00
Ted Kremenek
ef31f376bb RetainCountChecker: don't adjust the retain count when analyzing a ReturnStmt unless we are in the top-level call frame. We can do more later, but this makes the checker self-consistent (and fixes a crash). 
llvm-svn: 151426
 2012-02-25 02:09:09 +00:00
Argyrios Kyrtzidis
01c047e003 [arcmt] GC migrator: don't try to remove redundant __strong, it does 
more harm than good.

Fixes rdar://10522805&10521433

llvm-svn: 151424
 2012-02-25 01:57:42 +00:00
Eli Friedman
8a78a58188 Improve the diagnostic in ARC mode when a conditional with an Objective-C type and void* is used. <rdar://problem/10486347>. 
llvm-svn: 151416
 2012-02-25 00:23:44 +00:00
Douglas Gregor
4a71b12a4e Trying to increase my Ohloh ranking with trivial tweaks 
llvm-svn: 151414
 2012-02-25 00:16:17 +00:00
DeLesley Hutchins
5b330db270 Bugfix: bogus warning -- "invalid use of non-static data member", 
when a class is forward declared, and the reference to the data
member in question does not occur within a method body.

llvm-svn: 151413
 2012-02-25 00:11:55 +00:00
Douglas Gregor
78e72f08ec Simplify check per Eli's comment 
llvm-svn: 151412
 2012-02-25 00:06:47 +00:00
Anna Zaks
7ac344a48a [analyzer] Malloc: reason about the ObjC messages and C++. 
Assume none of the ObjC messages defined in system headers free memory,
except for the ones containing 'freeWhenDone' selector. Currently, just
assume that the region escapes to the messages with 'freeWhenDone'
(ideally, we want to treat it as 'free()').

For now, always assume that regions escape when passed to C++ methods.

llvm-svn: 151410
 2012-02-24 23:56:53 +00:00
Douglas Gregor
6073dcab38 Implement C++11 [over.match.copy]p1b2, which allows the use of 
explicit conversion functions to initialize the argument to a
copy/move constructor that itself is the subject of direct
initialization. Since we don't have that much context in overload
resolution, we end up threading more flags :(.

Fixes <rdar://problem/10903741> / PR10456. 

llvm-svn: 151409
 2012-02-24 23:56:31 +00:00
Eli Friedman
cb3785e450 Fix a stupid mistake in r151133. Reported to me by Joerg Sonnenberger. 
llvm-svn: 151407
 2012-02-24 23:53:49 +00:00
Douglas Gregor
4f283c8b20 For the purposes of building LLVM types, a forward-declared 
enumeration type with a fixed underlying type is complete. Fixes
<rdar://problem/10916155>.

llvm-svn: 151403
 2012-02-24 22:40:36 +00:00
Richard Smith
324df5564e Back out __decltype warning from r151377: we should either warn on all the GNU 
__keywords or none of them.

llvm-svn: 151401
 2012-02-24 22:30:04 +00:00
Benjamin Kramer
5f640e35e3 Make helper static. 
llvm-svn: 151400
 2012-02-24 22:19:42 +00:00
Richard Smith
6365c9138e When checking whether a reference to a variable is an ICE, look at the type of 
the declaration, not at the type of the DeclRefExpr, since within a lambda the
DeclRefExpr can be more const than the declaration is.

llvm-svn: 151399
 2012-02-24 22:12:32 +00:00
Fariborz Jahanian
0ed6cb75a7 Minor modern rewriter bug showed up during testing 
against a large project.

llvm-svn: 151395
 2012-02-24 21:42:38 +00:00
Douglas Gregor
232ee49c7b C++11 [class.ctor]p5 says that 
A defaulted default constructor for a class X is defined as deleted if [...]
    -  X is a union and all of its variant members are of const-qualified type.

A pedantic reading therefore says that

 union X { };

has a deleted default constructor, which is both silly and almost
certainly unintended. Pretend as if this this read

    - X is a union with one or more variant members, and all of its
      variant members are of const-qualified type. 

llvm-svn: 151394
 2012-02-24 21:25:53 +00:00
Dmitri Gribenko
85e8764254 Fix comment: correct predicate name, reformat comment. 
llvm-svn: 151389
 2012-02-24 20:03:35 +00:00
Argyrios Kyrtzidis
e1bc99e1ff Change the text of a FIXME. 
llvm-svn: 151387
 2012-02-24 19:45:46 +00:00
Richard Smith
fd3da9358f __decltype is a GNU extension, not a C++11 extension. 
llvm-svn: 151377
 2012-02-24 18:10:23 +00:00
Douglas Gregor
3a08c1cd3b Two minor, related fixes for template instantiation with blocks: 
- Make sure that the block expression is instantiation-dependent if the
    block is in a dependent context
  - Make sure that the C++ 'this' expression gets captured even if we
  don't rebuild the AST node during template instantiation. This would
  also have manifested as a bug for lambdas.

Fixes <rdar://problem/10832617>.

llvm-svn: 151372
 2012-02-24 17:41:38 +00:00
Fariborz Jahanian
dd5a59baed objc modern translator. Fixes writing of block pointer ivar access. 
llvm-svn: 151371
 2012-02-24 17:35:35 +00:00
Anna Zaks
18de54b1a6 [analyzer] Run remove dead bindings before each call. 
This ensures that we report the bugs associated with symbols going
out of scope in the correct function context.

llvm-svn: 151369
 2012-02-24 16:49:46 +00:00
Anna Zaks
cdf24a9a5e [analyzer] We were silently stopping exploring the path after 
visiting 'return;' statement!

This most likely caused us to skip a bunch of code when analyzing with
inlining.

llvm-svn: 151368
 2012-02-24 16:49:41 +00:00
Nick Lewycky
4ed840421d Revert r151357. That unreachable is reachable... 
llvm-svn: 151359
 2012-02-24 09:07:53 +00:00
Nick Lewycky
e51b944fd7 Silence gcc warnings pointing out that CharByteWidth could be used 
uninitialized. While there, restyle this function! No functionality change.

llvm-svn: 151357
 2012-02-24 08:58:14 +00:00
Matt Beaumont-Gay
47ff1221b1 Sink variable into assert 
llvm-svn: 151356
 2012-02-24 08:37:56 +00:00
Douglas Gregor
093d4be550 Remove some trivial uses of hasTrivialCopyConstructor() and 
hasTrivialMoveConstructor().

llvm-svn: 151354
 2012-02-24 07:55:51 +00:00
Douglas Gregor
f704aded6b Kill a spurious use of hasTrivialDefaultConstructor() 
llvm-svn: 151353
 2012-02-24 07:48:37 +00:00
Douglas Gregor
29c42f2a25 Implement a new type trait __is_trivially_constructible(T, Args...) 
that provides the behavior of the C++11 library trait
std::is_trivially_constructible<T, Args...>, which can't be
implemented purely as a library.

Since __is_trivially_constructible can have zero or more arguments, I
needed to add Yet Another Type Trait Expression Class, this one
handling arbitrary arguments. The next step will be to migrate
UnaryTypeTrait and BinaryTypeTrait over to this new, more general
TypeTrait class.

Fixes the Clang side of <rdar://problem/10895483> / PR12038.

llvm-svn: 151352
 2012-02-24 07:38:34 +00:00
Ted Kremenek
1bf3b04726 Make PathDiagnosticBuilder sensitive to varying LocationContexts, thus fixing a bug in the inlining diagnostics where the wrong location could be used. 
llvm-svn: 151349
 2012-02-24 07:12:52 +00:00
Ted Kremenek
60a7820ffe Reapply r151317, but when computing the PathDiagnostic profile and size keep into account the nested structure. Also fix a problem with how 
inlining impacted Plist diagnostics, and adjust some ranges in the Plist output due to richer information.

llvm-svn: 151346
 2012-02-24 06:00:00 +00:00
Chad Rosier
c0ea158a2b Revert r151317 - Rework PathDiagnostics creation.. - to appease buildbots. 
llvm-svn: 151338
 2012-02-24 02:06:33 +00:00
Argyrios Kyrtzidis
ffe055a86f [PCH] When keeping track of top-level decls for "targeted deserialization" 
make sure we don't mistake ParmVarDecls for top-level decls.

Fixes rdar://10920009.

llvm-svn: 151330
 2012-02-24 01:12:38 +00:00
Ted Kremenek
f2131e7d95 Rework PathDiagnostic creation so that call stacks are captured by a nested PathDiagnosticCallPiece. 
llvm-svn: 151317
 2012-02-24 00:38:56 +00:00
Chad Rosier
f62290a19b Reapply r151172 - Unwind path cleanup for array new list initializers - with a 
test case that only runs on debug builds.

llvm-svn: 151311
 2012-02-24 00:13:55 +00:00
Eli Friedman
ec52f92db3 Handle "#pragma GCC visibility" in a few more places. Switch over "#pragma pack" to use the same handling that gcc does. Fixes <rdar://problem/10871094> and <rdar://problem/10893316>. 
(Hopefully, common usage of these pragmas isn't irregular enough to break our current handling.  Doug has ideas for a more crazy approach if necessary.)

llvm-svn: 151307
 2012-02-23 23:47:16 +00:00
Eli Friedman
8195ad7b87 Modernize some code which processes CastExprs to use CastKinds. No intended functional change. 
llvm-svn: 151298
 2012-02-23 23:04:32 +00:00
Anna Zaks
4b062cb904 [analyzer] KeyChainAPI: unique the leaks by allocation site. 
(Very similar to the previous change in malloc.)

llvm-svn: 151297
 2012-02-23 22:53:29 +00:00