Commit Graph

11118 Commits

Author SHA1 Message Date
Anna Zaks b473816b4a [analyzer] Simplify CheckerContext
Remove dead members/parameters: ProgramState, respondsToCallback, autoTransition.
Remove addTransition method since it's the same as generateNode. Maybe we should
rename generateNode to genTransition (since a transition is always automatically
generated)?

llvm-svn: 142946
2011-10-25 19:57:06 +00:00
Anna Zaks 513921dc8a [analyzer] Remove unused headers.
llvm-svn: 142945
2011-10-25 19:56:58 +00:00
Anna Zaks f380534a1a [analyzer] Make branch for condition callback use CheckerContext
Now, all the path sensitive checkers use CheckerContext!

llvm-svn: 142944
2011-10-25 19:56:54 +00:00
Anna Zaks 3eae33412d [analyze] Convert EndOfPath callback to use CheckerContext
Get rid of the EndOfPathBuilder completely.
Use the generic NodeBuilder to generate nodes.
Enqueue the end of path frontier explicitly.

llvm-svn: 142943
2011-10-25 19:56:48 +00:00
David Blaikie dd58d4ca8f Handle redundant 'typename' on base class specifications.
llvm-svn: 142937
2011-10-25 18:46:41 +00:00
David Blaikie afa155fb88 Fix erroneous name-specifiers prior to decltypes better/correctly as per Doug's feedback.
llvm-svn: 142935
2011-10-25 18:17:58 +00:00
John McCall 526ab47a55 Restore r142914 and r142915, now with missing file and apparent
GCC compiler workaround.

llvm-svn: 142931
2011-10-25 17:37:35 +00:00
David Blaikie 1cd50022b2 Fix cases where the optional nested-name-specifier erroneously preceeded a decltype-specification when specifying a base type.
llvm-svn: 142928
2011-10-25 17:10:12 +00:00
David Blaikie 00ee7a081d Support the use of decltype for specifying base types. Fixes PR11216.
llvm-svn: 142926
2011-10-25 15:01:20 +00:00
NAKAMURA Takumi 9a8f13961c Revert r142914 and r142915, due to possibly missing file.
r142914: "Introduce a placeholder type for "pseudo object""
r142915: "Pull the pseudo-object stuff into its own file."
llvm-svn: 142921
2011-10-25 14:32:25 +00:00
John McCall c4a2d3259f Introduce a placeholder type for "pseudo object"
expressions: expressions which refer to a logical rather
than a physical l-value, where the logical object is
actually accessed via custom getter/setter code.
A subsequent patch will generalize the AST for these
so that arbitrary "implementing" sub-expressions can
be provided.

Right now the only client is ObjC properties, but
this should be generalizable to similar language
features, e.g. Managed C++'s __property methods.

llvm-svn: 142914
2011-10-25 07:27:56 +00:00
Eric Christopher 8605082dac Allow the -fno-operator-names option to be passed down to the rest
of the compiler.

Fixes PR10198
Patch by Brian Foley!

llvm-svn: 142913
2011-10-25 07:13:06 +00:00
Ted Kremenek 74e82bd190 Tweak printf format string parsing to accept 'hh' conversion specifier to accept any char, not just signed char. Fixes <rdar://problem/10303638>.
llvm-svn: 142908
2011-10-25 04:20:41 +00:00
Douglas Gregor 4a2a8f7fb8 Check for unexpanded parameter packs in the name that guards a
Microsoft __if_exists/__if_not_exists statement. Also note that we
weren't traversing DeclarationNameInfo *at all* within the
RecursiveASTVisitor, which would be rather fatal for variadic
templates.

llvm-svn: 142906
2011-10-25 03:44:56 +00:00
Ted Kremenek 016055fa69 Remove extra copy of contents of header file resulting in a patch being applied twice. Aren't include guards great?
llvm-svn: 142905
2011-10-25 03:37:17 +00:00
Douglas Gregor ab6bc1d13e Make the -Wc++11-compat warnings ignored by default, so we don't break
valid C++98/03 code. However, add these warnings to -Wall, for those
who obviously already like clean code.

llvm-svn: 142903
2011-10-25 03:07:45 +00:00
Douglas Gregor deb4a2be67 Implement support for dependent Microsoft __if_exists/__if_not_exists
statements. As noted in the documentation for the AST node, the
semantics of __if_exists/__if_not_exists are somewhat different from
the way Visual C++ implements them, because our parsed-template
representation can't accommodate VC++ semantics without serious
contortions. Hopefully this implementation is "good enough".

llvm-svn: 142901
2011-10-25 01:33:02 +00:00
Argyrios Kyrtzidis 429ec024f8 [PCH] When visiting preprocessed entities, make it possible to avoid deserializing
preprocessed entities that are #included in the range that we are interested.

This is useful when we are interested in preprocessed entities of a specific file, e.g
when we are annotating tokens. There is also an optimization where we cache the last
result of PreprocessingRecord::getPreprocessedEntitiesInRange and we re-use it if
there is a call with the same range as before.

rdar://10313365

llvm-svn: 142887
2011-10-25 00:29:50 +00:00
Ted Kremenek 0062e74961 Add source-level dominators analysis. Patch by Guoping Long!
llvm-svn: 142885
2011-10-25 00:25:24 +00:00
Richard Smith 733237db23 Revert r142844, it broke selfhost. The problem appears to be a missing
lvalue-to-rvalue conversion on the LHS operand of '->'.

llvm-svn: 142872
2011-10-24 23:14:33 +00:00
Douglas Gregor 43edb32f1f Rework Microsoft __if_exists/__if_not_exists parsing and semantic
analysis to separate dependent names from non-dependent names. For
dependent names, we'll behave differently from Visual C++:

  - For __if_exists/__if_not_exists at class scope, we'll just warn
    and then ignore them.
  - For __if_exists/__if_not_exists in statements, we'll treat the
    inner statement as a compound statement, which we only instantiate
    in templates where the dependent name (after instantiation)
    exists. This behavior is different from VC++, but it's as close as
    we can get without encroaching ridiculousness.

The latter part (dependent statements) is not yet implemented.

llvm-svn: 142864
2011-10-24 22:31:10 +00:00
Anna Zaks e4e5712cd7 [analyzer] Node builders cleanup + comments
Renamed PureNodeBuilder->StmtNodeBuilder.

llvm-svn: 142849
2011-10-24 21:19:59 +00:00
Anna Zaks 2338c15efe [analyzer] Remove the old StmtNodeBuilder.
llvm-svn: 142848
2011-10-24 21:19:53 +00:00
Anna Zaks 4c9169254f [analyzer] Completely remove the global Builder object.
llvm-svn: 142847
2011-10-24 21:19:48 +00:00
Richard Smith cbb407268e Constant expression evaluation: evaluate lvalues as lvalues, and rvalues as
rvalues, as C++11 constant evaluation semantics require. DeclRefs referring to
references can now use the normal initialization-caching codepath, which
incidentally fixes a crash in cyclic initialization of references.

llvm-svn: 142844
2011-10-24 21:07:08 +00:00
Anna Zaks e594034f1f [analyzer] Convert ExprEngine::visit() to use short lived builders.
This commit removes the major functional dependency on the ExprEngine::Builder
member variable.

In some cases the code became more verbose. Particularly, we call takeNodes()
and addNodes() to move responsibility for the nodes from one builder to another.
This will get simplified later on.

llvm-svn: 142831
2011-10-24 18:26:19 +00:00
Anna Zaks 5236792019 [analyzer] Convert VisitDeclStmt to use local node builder.
llvm-svn: 142830
2011-10-24 18:26:12 +00:00
Anna Zaks cbdf10be19 [analyzer] Convert more functions (ex:evalBind()) to iterative builders
llvm-svn: 142829
2011-10-24 18:26:08 +00:00
Anna Zaks f011a4a6f9 [analyzer] Convert VisitUnaryOperator to use short lived Node builders
To convert iteratively, we take the nodes the local builder will
process from the from the global builder and add the generated nodes
after the short lived builder is done. PureStmtNodeBuilder is the
one we should eventually use everywhere. Added Stmt index and Builder
context as ExprEngine globals. To avoid passing them around.

llvm-svn: 142828
2011-10-24 18:26:03 +00:00
Anna Zaks 0bb9d1b917 [analyzer] Use a temporary builder in CheckerContext.
First step toward removing the global Stmt builder. Added several transitional methods (like takeNodes/addNodes).
+ Stop early if the set of exploded nodes for the next iteration is empty.

llvm-svn: 142827
2011-10-24 18:25:58 +00:00
Anna Zaks 7fec527d16 [analyzer] Pass external Dst set to NodeBuilder
This moves the responsibility for storing the output node set from the
builder to the clients. The builder is just responsible for transforming
an input set into the output set: {SrcSet/SrcNode} -> {Frontier}.

llvm-svn: 142826
2011-10-24 18:25:53 +00:00
Argyrios Kyrtzidis 067cbfa299 [libclang] Make sure we don't try to erase past the StoredDiagnostics vector.
Ted came upon the bug but I couldn't make a test out of it.

llvm-svn: 142805
2011-10-24 17:25:20 +00:00
David Chisnall 8c93cf2a27 Enable experimental support for objc_msgSend with GNUstep ObjC runtime.
llvm-svn: 142795
2011-10-24 14:07:03 +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
Peter Collingbourne 7d33cd3a2f Fix grammar for C++11 alignment specifiers, and add a few FIXMEs.
llvm-svn: 142760
2011-10-23 20:07:52 +00:00
Peter Collingbourne e0916cd408 Fix typo (C++1 -> C++11).
llvm-svn: 142759
2011-10-23 20:07:42 +00:00
Ted Kremenek 142adc492b [analyzer] Remove LocationContext creation methods from AnalysisManager, and change clients to use AnalysisContext instead.
WIP to remove/reduce ExprEngine's usage of AnalysisManager.

llvm-svn: 142739
2011-10-23 02:31:52 +00:00
Benjamin Kramer e889bb14f3 Pack struct better.
llvm-svn: 142725
2011-10-22 15:40:28 +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
Ted Kremenek 5abde7cd5e Pull TopologicallySortedCFG out of LiveVariables into its own analysis: PostOrderCFGView.
llvm-svn: 142713
2011-10-22 02:14:23 +00:00
Argyrios Kyrtzidis 6a59897d50 [PCH] When serializing Stmts, keep track of when sub statements are referenced again and
in such a case just write out a reference of a previously serialized Stmt, instead
of serializing it all over again.

This saves memory + space + [de]serializing time, and avoids blowing up memory
with pathological cases. rdar://10293911

llvm-svn: 142696
2011-10-21 23:02:28 +00:00
Argyrios Kyrtzidis d4590a5d5f Don't try to set the "array filler" in a InitListExpr twice.
llvm-svn: 142695
2011-10-21 23:02:22 +00:00
Eli Friedman 43114f9084 More ASTRecordLayout changes for MS ABI; based on patch by r4start.
llvm-svn: 142694
2011-10-21 22:49:56 +00:00
DeLesley Hutchins c20905110a Thread safety analysis refactoring: invalid lock expressions.
llvm-svn: 142666
2011-10-21 18:10:14 +00:00
Sean Callanan 715736c007 Added documentation for the recently-added
addDecl() and makeDeclVisibleInContextInternal()
functions, and made the latter private since it
does not and should not have external clients.

llvm-svn: 142655
2011-10-21 16:15:18 +00:00
Douglas Gregor 60060d6f8f Treat the Microsoft/Borland keyword "__except" as a context-sensitive
keyword, because both libstdc++ and libc++ use "__except" as an
identifier. Fixes <rdar://problem/10322555>.

llvm-svn: 142636
2011-10-21 03:57:52 +00:00
Sean Callanan 95e74be193 I added a new function to DeclContext called
addDeclInternal().  This function suppresses any
calls to FindExternalVisibleDeclsByName() while
a Decl is added to a DeclContext.  This behavior
is required for the ASTImporter, because in the
case of the LLDB client the ASTImporter would be
called recursively to import the visible decls,
which leads to assertions because the recursive
call is seeing partially-formed types.

I also modified the ASTImporter to use
addDeclInternal() in all places where it would
otherwise use addDecl().  This fix should not
affect the rest of Clang, passes Clang's
testsuite, and fixes several serious LLDB bugs.

llvm-svn: 142634
2011-10-21 02:57:43 +00:00
Nick Lewycky ba743b75cb Take DW_AT_comp_dir from $PWD when it's present and starts with a '/'. This is
closer to what GCC does, except that GCC also checks that the inodes for $PWD
and '.' match.

llvm-svn: 142633
2011-10-21 02:32:14 +00:00
Richard Smith fe2750db42 Add -Wc++98-compat diagnostics for jumps which bypass initialization of non-POD
but trivially constructible and destructible variables in C++11 mode. Also
incidentally improve the precision of the wording for jump diagnostics in C++98
mode.

llvm-svn: 142619
2011-10-20 21:42:12 +00:00
Richard Smith f411196d15 'extern template' is a C++11 feature. Add an Extension for C++98 (this matches
gcc's behaviour), and a -Wc++98-compat-pedantic warning for C++11.

llvm-svn: 142597
2011-10-20 18:35:58 +00:00
Douglas Gregor f4ef4d2ec5 There's no point in marking a declaration invalid just because it
shadows a template parameter. Complain about the shadowing (or not,
under -fms-extensions), but don't invalidate the declaration. Merely
forget about the template parameter declaration.

llvm-svn: 142596
2011-10-20 17:58:49 +00:00
Ted Kremenek 337c5b880c Further refine the diagnostic categories for ARC diagnostics. Addresses <rdar://problem/10245086>.
llvm-svn: 142571
2011-10-20 05:07:47 +00:00
Richard Smith 91c7bbde4b Add -Wc++98-compat warning for enumerations in nested name specifiers.
llvm-svn: 142568
2011-10-20 03:28:47 +00:00
David Blaikie 6f686fc271 Add a fixit to remove storage specifiers on anonymous enums.
llvm-svn: 142565
2011-10-20 02:10:55 +00:00
David Blaikie 357cd4e715 Fix all 80 col violations in include/clang/Basic, plus any trailing whitespace in the files I'm touching anyway.
llvm-svn: 142564
2011-10-20 01:45:20 +00:00
Richard Smith 09f76ee63c Improve the diagnostic when a comma ends up at the end of a declarator group
instead of a semicolon (as sometimes happens during refactorings). When such a
comma is seen at the end of a line, and is followed by something which can't
possibly be a declarator (or even something which might be a plausible typo for
a declarator), suggest that a semicolon was intended.

llvm-svn: 142544
2011-10-19 21:33:05 +00:00
Richard Smith f720df0ed6 -Wc++98-compat: warn on nontrivial types used in unions and anonymous structs.
llvm-svn: 142541
2011-10-19 20:41:51 +00:00
Richard Smith c620f554b9 -Wc++98-compat: diagnose if a reference is bound to a prvalue which does not
have an unambiguous accessible copying constructor; this is ill-formed in C++98.

llvm-svn: 142533
2011-10-19 16:55:56 +00:00
Rafael Espindola 5450f218a6 Fix the signatures of vfork, __sigsetjmp and sigsetjmp.
Patch by Dimitry Andric.

llvm-svn: 142531
2011-10-19 14:50:34 +00:00
Douglas Gregor e248eea214 Improve the warning for cv-qualifiers on free functions, from Ahmed Charles!
llvm-svn: 142478
2011-10-19 06:04:55 +00:00
Richard Smith a066ccfcf1 Add a -Wc++98-compat warning for friend functions of class templates which would
be implicitly instantiated (resulting in a redefinition) in C++98.

llvm-svn: 142468
2011-10-19 00:54:10 +00:00
Peter Collingbourne a48f33f951 Move static array parameter checks to SemaExpr, per Doug's request
llvm-svn: 142465
2011-10-19 00:16:45 +00:00
Richard Smith 38c0e0417c -Wc++98-compat: warn if a SFINAE substitution in C++11 suppresses an access
control diagnostic.

llvm-svn: 142463
2011-10-19 00:07:01 +00:00
Anna Zaks d009bfac0c [analyzer] Move predecessor into the NodeBuilder context.
llvm-svn: 142454
2011-10-18 23:06:48 +00:00
Anna Zaks a99b41f37f [analyzer] Make NodeBuilder and Pred node loosely coupled
NodeBuilder should not assume it's dealing with a single predecessor. Remove predecessor getters. Modify the BranchNodeBuilder to not be responsible for doing auto-transitions (which depend on a predecessor).

llvm-svn: 142453
2011-10-18 23:06:44 +00:00
Anna Zaks 1dd965eaa5 [analyzer] Remove StmtNodeBuilder from CheckerContext
It now only depends on a generic NodeBuilder instead. As part of this change, make the generic node builder results finalized by default.

llvm-svn: 142452
2011-10-18 23:06:38 +00:00
Anna Zaks 88d9462b73 [analyzer] Subclassing StmtBuilder from the NodeBuilder
llvm-svn: 142451
2011-10-18 23:06:33 +00:00
Anna Zaks e83ddcc4ec [analyzer] Remove dead code.
ExprEngineBuilders is not used.

llvm-svn: 142450
2011-10-18 23:06:29 +00:00
Anna Zaks ea96f5b852 [analyzer] Remove redundant method + whitespace.
llvm-svn: 142449
2011-10-18 23:06:25 +00:00
Anna Zaks 6d285c58ec [analyzer] Modularize builder use in processBranch.
Take advantage of the new builders for branch processing. As part of this change pass generic NodeBuilder (instead of BranchNodeBuilder) to the BranchCondition callback and remove the unused methods form BranchBuilder.

llvm-svn: 142448
2011-10-18 23:06:21 +00:00
Anna Zaks eebbbc7253 [analyzer] Pull Pred out of NodeBuilderContext.
Each builder will have a different one, so it doesn't make sense to keep it in the context.

llvm-svn: 142447
2011-10-18 23:06:16 +00:00
Anna Zaks 2e2eb49f7f [analyzer] Rely only on NodeBuilder inside CheckerContext.
llvm-svn: 142446
2011-10-18 23:06:11 +00:00
Anna Zaks 1ee9f11631 [analyzer] Remove redundant assignment operator.
llvm-svn: 142445
2011-10-18 23:06:08 +00:00
Anna Zaks ce5e97efdd [analyzer] NodeBuilder Refactoring: Subclass BranchNodeBuilder from NodeBuilder.
llvm-svn: 142444
2011-10-18 23:06:04 +00:00
Anna Zaks fc0189aadc [analyzer] Node Builder refactoring: Introduce a simple Node Builder responsible for generating the node frontier.
Currently we have a bunch of different node builders which provide some common
functionality but are difficult to refactor. Each builder generates nodes of
different kinds and calculates the frontier nodes, which should be propagated
to the next step (after the builder dies).

Introduce a new NodeBuilder which provides very basic node generation facilities
but takes care of the second problem. The idea is that all the other builders
will eventually use it. Use this builder in CheckerContext instead of
StmtNodeBuilder (the way the frontier is propagated to the StmtBuilder
is a hack and will be removed later on).

llvm-svn: 142443
2011-10-18 23:05:58 +00:00
Argyrios Kyrtzidis 72a3cf0a4a [libclang] Make sure we do a correct invalid check in clang_getExpansionLocation.
llvm-svn: 142430
2011-10-18 21:59:54 +00:00
Richard Smith c82397332d -Wc++98-compat and -Wc++98-compat-pedantic warnings for Sema, part 2.
llvm-svn: 142426
2011-10-18 21:39:00 +00:00
Douglas Gregor c1939d3967 Remove unused data member
llvm-svn: 142425
2011-10-18 21:25:15 +00:00
John McCall e314e27c58 Macro metaprogramming for builtin types.
llvm-svn: 142420
2011-10-18 21:02:43 +00:00
Richard Smith 0bf8a492fd -Wc++98-compat and -Wc++98-compat-pedantic warnings for Sema, part 1.
llvm-svn: 142419
2011-10-18 20:49:44 +00:00
Daniel Dunbar b274318bba Frontend: Support -iframework.
llvm-svn: 142418
2011-10-18 20:40:38 +00:00
Fariborz Jahanian 6b70865ec0 objc: diagnose invalid argument to an
iboutletcollection attribute intead of crashing.
// rdar://10296078

llvm-svn: 142364
2011-10-18 17:11:10 +00:00
Douglas Gregor 09deffa067 Make it possible to compute the type of 'this' without capturing
it. Refactoring to be used in a moment.

llvm-svn: 142360
2011-10-18 16:47:30 +00:00
Argyrios Kyrtzidis 0c7735e525 [libclang] Index implicit property references.
llvm-svn: 142355
2011-10-18 15:50:50 +00:00
Hans Wennborg f99d04f841 Suggest %zu for size_t args to printf.
For PR11152. Make PrintSpecifier::fixType() suggest "%zu" for size_t, etc.
rather than looking at the underlying type and suggesting "%llu" or other
platform-specific length modifiers. Applies to C99 and C++11.

llvm-svn: 142342
2011-10-18 08:10:06 +00:00
Richard Smith 83c19296ff Add -Wc++11-compat warning for an inline specifier on an explicit instantiation.
llvm-svn: 142333
2011-10-18 03:44:03 +00:00
Richard Smith 050d261ec7 Refactor the checking for explicit template instantiations being performed in
the right namespace in C++11 mode. Teach the code to prefer the 'must be in
precisely this namespace' diagnostic whenever that's true, and fix a defect
which resulted in the -Wc++11-compat warning in C++98 mode sometimes being
omitted.

llvm-svn: 142329
2011-10-18 02:28:33 +00:00
John McCall 1bb357929d In hasPlaceholderType(Kind) and isSpecificPlaceholderType(Kind), assert
that the parameter is actually a placeholder type kind.

llvm-svn: 142312
2011-10-17 23:48:15 +00:00
Richard Smith b15c11c819 Add -Wc++98-compat warnings for uses of the new keywords 'alignof', 'char16_t',
'char32_t', 'constexpr', 'decltype', 'noexcept', 'nullptr' and 'static_assert'.

llvm-svn: 142302
2011-10-17 23:06:20 +00:00
Nick Lewycky 1d617acef9 Wire up support for the controlling the extended dwarf .file directive. With
r142300 but not this patch, clang -S may emit .s files that assemblers other
than llvm-mc can't parse.

llvm-svn: 142301
2011-10-17 23:05:52 +00:00
Rafael Espindola 70b8d76e64 Implement -static-libstdc++ for linux.
llvm-svn: 142290
2011-10-17 22:14:51 +00:00
Ted Kremenek a08713ce86 Move about 20 random diagnostics under -W flags. Patch by Ahmed Charles!
llvm-svn: 142284
2011-10-17 21:47:53 +00:00
Eli Friedman a4c2602b71 Initial implementation of __atomic_is_lock_free. The input is the size of an atomic type rather than an atomic type itself just to save some implementation pain; I can change that if it seems worthwhile.
I think this is the last hook needed for <atomic> besides defines for ATOMIC_CHAR_LOCK_FREE and friends.

llvm-svn: 142281
2011-10-17 21:44:23 +00:00
DeLesley Hutchins a088f67bee Substitute for arguments in method calls -- refactoring
llvm-svn: 142260
2011-10-17 21:33:35 +00:00
Benjamin Kramer 9941d72d05 Code completion chunks are pod-like.
llvm-svn: 142252
2011-10-17 21:17:53 +00:00
Argyrios Kyrtzidis dc199a3152 [libclang] Introduce a new high level API for indexing clients that assumes
more of the work involved in indexing a translation unit and simplifies client
implementations.

Only C/ObjC for now, C++ (and comments) to come.

llvm-svn: 142233
2011-10-17 19:48:19 +00:00
Argyrios Kyrtzidis bd8b150dfc Introduce ASTConsumer::HandleTopLevelDeclInObjCContainer which accepts
top-level declarations that occurred inside an ObjC container.

This is useful to keep track of such decls otherwise when e.g. a function
is declared inside an objc interface, it is not passed to HandleTopLevelDecl
and it is not inside the DeclContext of the interface that is returned.

llvm-svn: 142232
2011-10-17 19:48:13 +00:00
Argyrios Kyrtzidis 1f4bee5601 Keep track when a ObjC interface/protocol was initially created as a forward reference.
llvm-svn: 142230
2011-10-17 19:48:06 +00:00
John McCall 4124c4924d Teach the ARC compiler to not require __bridge casts when
passing/receiving CF objects at +0 to/from Objective-C methods
or audited C functions.

llvm-svn: 142219
2011-10-17 18:40:02 +00:00
John McCall 8a6b59ad97 Add a new placeholder type to represent "unbridged"
casts in ARC.

No semantic analysis yet.

llvm-svn: 142208
2011-10-17 18:09:15 +00:00