Commit Graph

6268 Commits

Author SHA1 Message Date
Douglas Gregor d71149a453 Ignore weak_import on Objective-C property and method declarations on
all platforms, not just darwin. Fixes the regression in this test case.

llvm-svn: 128147
2011-03-23 13:27:51 +00:00
Douglas Gregor 20b2ebd785 Implement a new 'availability' attribute, that allows one to specify
which versions of an OS provide a certain facility. For example,

  void foo()
  __attribute__((availability(macosx,introduced=10.2,deprecated=10.4,obsoleted=10.6)));

says that the function "foo" was introduced in 10.2, deprecated in
10.4, and completely obsoleted in 10.6. This attribute ties in with
the deployment targets (e.g., -mmacosx-version-min=10.1 specifies that
we want to deploy back to Mac OS X 10.1). There are several concrete
behaviors that this attribute enables, as illustrated with the
function foo() above:

  - If we choose a deployment target >= Mac OS X 10.4, uses of "foo"
    will result in a deprecation warning, as if we had placed
    attribute((deprecated)) on it (but with a better diagnostic)
  - If we choose a deployment target >= Mac OS X 10.6, uses of "foo"
    will result in an "unavailable" warning (in C)/error (in C++), as
    if we had placed attribute((unavailable)) on it
  - If we choose a deployment target prior to 10.2, foo() is
    weak-imported (if it is a kind of entity that can be weak
    imported), as if we had placed the weak_import attribute on it.

Naturally, there can be multiple availability attributes on a
declaration, for different platforms; only the current platform
matters when checking availability attributes.

The only platforms this attribute currently works for are "ios" and
"macosx", since we already have -mxxxx-version-min flags for them and we
have experience there with macro tricks translating down to the
deprecated/unavailable/weak_import attributes. The end goal is to open
this up to other platforms, and even extension to other "platforms"
that are really libraries (say, through a #pragma clang
define_system), but that hasn't yet been designed and we may want to
shake out more issues with this narrower problem first.

Addresses <rdar://problem/6690412>.

As a drive-by bug-fix, if an entity is both deprecated and
unavailable, we only emit the "unavailable" diagnostic.

llvm-svn: 128127
2011-03-23 00:50:03 +00:00
John McCall 92d627e1b0 Fix an error with the declaration of block parameters that depend
on previous block parameters that crept in as part of my captures
work a month or so ago.

llvm-svn: 128121
2011-03-22 23:15:50 +00:00
John McCall aa01737782 Warn about unused declaration-specifiers on tag declarations.
llvm-svn: 128118
2011-03-22 23:00:04 +00:00
John McCall 30cd20a316 Apply Jonathan Sauer's proposed solution to PR9519. Thanks!
llvm-svn: 128075
2011-03-22 07:16:37 +00:00
Ted Kremenek 288fb9dc6e Remove crash recovery cleanups from TypeLocBuilder. They were a bit error prone, only hit in rare cases.
llvm-svn: 128058
2011-03-22 01:15:21 +00:00
Fariborz Jahanian 413e064b45 Fix an objc++ diagnostic initializing objc pointers.
// rdar:// 9139947

llvm-svn: 128013
2011-03-21 19:08:42 +00:00
David Chisnall e1d2584d44 Fix Objective-C++ exceptions (GNU runtime).
llvm-svn: 127980
2011-03-20 21:35:39 +00:00
Peter Collingbourne a85fc0a2f3 Only objects are declared const by a constexpr specifier, per C++0x [dcl.constexpr]p9
llvm-svn: 127967
2011-03-20 08:06:45 +00:00
Francois Pichet 13b4e68642 Downgrade err_mismatched_exception_spec to a ExtWarning in Microsoft mode. MSVC doesn't do any validation on exception specifications.
This remove 1 error when parsing MSVC stl lib with clang.

llvm-svn: 127961
2011-03-19 23:05:18 +00:00
Ted Kremenek a872326929 Recovery memory from TypeLocBuilders during crashes.
llvm-svn: 127932
2011-03-19 01:00:38 +00:00
Ted Kremenek ddc06d0bd0 Rename class 'CFGReachabilityAnalysis' to 'CFGReverseBlockReachabilityAnalysis'.
This rename serves two purposes:

- It reflects the actual functionality of this analysis.
- We will have more than one reachability analysis.

llvm-svn: 127930
2011-03-19 01:00:33 +00:00
Peter Collingbourne 599cb8e430 Add support for language-specific address spaces. On top of that,
add support for the OpenCL __private, __local, __constant and
__global address spaces, as well as the __read_only, _read_write and
__write_only image access specifiers.  Patch originally by ARM;
language-specific address space support by myself.

llvm-svn: 127915
2011-03-18 22:38:29 +00:00
Douglas Gregor 96a4bddefb Add an opt-in -Wheader-hygiene, which current diagnoses the use of
global using directives in C++ headers, from Elliot Glaysher!

llvm-svn: 127881
2011-03-18 16:10:52 +00:00
Abramo Bagnara a3088e6568 Defined friend functions are *implicitly* inlined, unless the inline specifier occurs explicitly.
llvm-svn: 127877
2011-03-18 15:21:59 +00:00
Abramo Bagnara 60804e1604 Fixed inconsistency when adding TemplateParameterListsInfo.
llvm-svn: 127876
2011-03-18 15:16:37 +00:00
Richard Smith 9647d3ca02 Fix PR9488: 'auto' type substitution can fail (for instance, if it creates a reference-to-void type). Don't crash if it does.
Also fix an issue where type source information for the resulting type was being lost.

llvm-svn: 127811
2011-03-17 16:11:59 +00:00
Ted Kremenek 2551fbe928 Don't construct two CFGs just to run -Wuninitialized. While this causes new warnings to be flagged under -Wconditional-uninitialized, this is something we
can improve over time.

llvm-svn: 127802
2011-03-17 05:29:57 +00:00
Abramo Bagnara 9875a3ce70 Use ElaboratedType also for C.
llvm-svn: 127755
2011-03-16 20:16:18 +00:00
Douglas Gregor 63fab34469 Detect attempts to provide a specialization of a function within a
dependent scope and produce an error (rather than crashing). Fixes PR8979.

llvm-svn: 127749
2011-03-16 19:27:09 +00:00
Douglas Gregor 89f3cd5c15 Clean up our handling of template-ids that resolve down to a single
overload, so that we actually do the resolution for full expressions
and emit more consistent, useful diagnostics. Also fixes an IRGen
crasher, where Sema wouldn't diagnose a resolvable bound member
function template-id used in a full-expression (<rdar://problem/9108698>).

llvm-svn: 127747
2011-03-16 19:16:25 +00:00
Douglas Gregor ce0bc31469 Don't indescriminately print overload candidates when we have invalid
operands to a binary expression; it doesn't make sense in all
contexts. The right answer would be to see if the user forgot at ().

Fixes <rdar://problem/9136502>.

llvm-svn: 127740
2011-03-16 18:21:05 +00:00
Douglas Gregor 6341ceedc5 Allow function calls to dereferenced member pointers of
pointer-to-function type. Fixes <rdar://problem/9065289>.

llvm-svn: 127739
2011-03-16 17:42:23 +00:00
Douglas Gregor 46c04e74fb When we're inserting a synthesized label declaration for a
forward-looking "goto" statement, make sure to insert it *after* the
last declaration in the identifier resolver's declaration chain that
is either outside of the function/block/method's scope or that is
declared in that function/block/method's specific scope. Previously,
we could end up inserting the label ahead of declarations in inner
scopes, confusing C++ name lookup.

Fixes PR9491/<rdar://problem/9140426> and <rdar://problem/9135994>.

Note that the crash-on-invalid PR9495 is *not* fixed. That's a
separate issue.

llvm-svn: 127737
2011-03-16 16:39:03 +00:00
Ted Kremenek 6cd0187718 Remove warning for null characters in CFString literals. Clang handles them just fine, and GCC 4.2 doesn't warn here either.
We added this warning back in 2007 when we were comparing against GCC 4.0.

llvm-svn: 127704
2011-03-15 21:18:52 +00:00
Ted Kremenek 0d5b9ef564 Don't warn about null characters in Objective-C format string literals.
llvm-svn: 127703
2011-03-15 21:18:48 +00:00
Sebastian Redl c34c29f661 More robust check for the special C++0x operator new workaround.
llvm-svn: 127692
2011-03-15 20:41:09 +00:00
Sebastian Redl cb5dd00796 Implement a hack to work around the changing exception specification of operator new in C++0x.
llvm-svn: 127688
2011-03-15 19:52:30 +00:00
Fariborz Jahanian b03a4c23c2 Don't poke into redefined 'id' type looking for a property
declaration as this results in a confusing error message,
instead of message related to missing property declaration.
// rdar://9106929

llvm-svn: 127682
2011-03-15 17:27:48 +00:00
Ted Kremenek 1a47f366b7 Split warnings from -Wuninitialized-experimental into "must-be-initialized" and "may-be-initialized" warnings, each controlled by different flags.
llvm-svn: 127669
2011-03-15 05:22:28 +00:00
Ted Kremenek c8c4e5f371 Split warnings from -Wuninitialized-experimental into "must-be-initialized" and "may-be-initialized" warnings, each controlled by different flags.
llvm-svn: 127666
2011-03-15 04:57:38 +00:00
Ted Kremenek a0a5ca14d0 Rename UninitializedValuesV2 to UninitializedValues.
llvm-svn: 127657
2011-03-15 03:17:07 +00:00
Douglas Gregor 88764cf822 When synthesizing a label declaration based on a goto statement that
cannot yet be resolved, be sure to push the new label declaration into
the right place within the identifier chain. Otherwise, name lookup in
C++ gets confused when searching for names that are lexically closer
than the label. Fixes PR9463.

llvm-svn: 127623
2011-03-14 21:19:51 +00:00
Sebastian Redl 771f57de1c Implement instantiation of noexcept spec and add a test case.
llvm-svn: 127603
2011-03-14 18:51:50 +00:00
Sebastian Redl 37588097af Make deallocation functions implicitly noexcept in C++0x.
llvm-svn: 127596
2011-03-14 18:08:30 +00:00
Douglas Gregor e981bb0e5c -fwritable-strings should silence warnings about the deprecated string
-literal to char* conversion. Make it so.

llvm-svn: 127586
2011-03-14 16:13:32 +00:00
Sebastian Redl 31ad754c96 Instead of storing an ASTContext* in FunctionProtoTypes with computed noexcept specifiers, unique FunctionProtoTypes with a ContextualFoldingSet, as suggested by John McCall.
llvm-svn: 127568
2011-03-13 17:09:40 +00:00
Fariborz Jahanian c677f69397 Place duplicate argument declaration in in
method prototypes under the -Wduplicate-method-arg and
turn it off by default.

llvm-svn: 127552
2011-03-12 18:54:30 +00:00
Sebastian Redl 9cb4be2466 Revert "Disable delegating constructors for 2.9"
It is only meant for the release branch.

llvm-svn: 127544
2011-03-12 13:53:51 +00:00
Sebastian Redl a2cb77f54e Disable delegating constructors for 2.9
llvm-svn: 127543
2011-03-12 13:53:47 +00:00
Sebastian Redl c1f8e493da Revert "Disable inherited constructors for 2.9."
It is only meant for the release branch.

llvm-svn: 127542
2011-03-12 13:44:32 +00:00
Sebastian Redl 1dc2c1d27f Disable inherited constructors for 2.9.
llvm-svn: 127541
2011-03-12 13:44:23 +00:00
Sebastian Redl fa453cfdc3 Propagate the new exception information to FunctionProtoType.
Change the interface to expose the new information and deal with the enormous fallout.
Introduce the new ExceptionSpecificationType value EST_DynamicNone to more easily deal with empty throw specifications.
Update the tests for noexcept and fix the various bugs uncovered, such as lack of tentative parsing support.

llvm-svn: 127537
2011-03-12 11:50:43 +00:00
Abramo Bagnara f2a79d94e4 Forgotten part of previous commit.
llvm-svn: 127536
2011-03-12 11:17:06 +00:00
Abramo Bagnara 6b6f051e5e Renamed OffsetOfNode::getRange to getSourceRange for uniformity.
llvm-svn: 127534
2011-03-12 09:45:03 +00:00
Douglas Gregor 1beec45a61 Fixes for some more expressions containing function templateids that
should be resolvable, from Faisal Vali!

llvm-svn: 127521
2011-03-12 01:48:56 +00:00
Douglas Gregor 364f7db063 When we're determining whether to complain about a conversion from one
enumeration type to another in C, classify enumeration constants as if
they had the type of their enclosing enumeration. Fixes
<rdar://problem/9116337>.

llvm-svn: 127514
2011-03-12 00:14:31 +00:00
Douglas Gregor 5ecbb1bc24 Don't ask if a depenendent CXXRecordDecl has any dependent bases
unless we already know that it has a definition. Fixes
PR9449/<rdar://problem/9115785>.

llvm-svn: 127512
2011-03-11 23:27:41 +00:00
Peter Collingbourne c77f85b4b0 OpenCL: if double precision floating point constant encountered
without cl_khr_fp64, warn and cast to single precision

llvm-svn: 127476
2011-03-11 19:24:59 +00:00
Peter Collingbourne e190dee7a5 Add support for the OpenCL vec_step operator, by generalising and
extending the existing support for sizeof and alignof.  Original
patch by Guy Benyei.

llvm-svn: 127475
2011-03-11 19:24:49 +00:00
Rafael Espindola 6b7e3bc992 Fix PR9453 by not trying to print a warning about ignored qualifiers
in conversion functions.

llvm-svn: 127460
2011-03-11 04:56:58 +00:00
John McCall 7684ddee7c When comparing a null pointer and something else, always cast the null
pointer instead of the other operand.

llvm-svn: 127458
2011-03-11 04:25:25 +00:00
Ted Kremenek 4c0826c236 Profiling showed that 'CheckImplicitConversions' was very slow because of the call to getSpellingLoc(). On 'aes.c'
in the LLVM test suite, this function was consuming 7.4% of -fsyntax-only time.  This change fixes this issue
by delaying the check that the warning would be issued within a system macro by as long as possible.  The
main negative of this change is now the logic for this check is done in multiple places in this function instead
of just in one place up front.

llvm-svn: 127425
2011-03-10 20:03:42 +00:00
Abramo Bagnara 0adf29a5bd Avoid do drop outer template parameter lists on the floor.
llvm-svn: 127404
2011-03-10 13:28:31 +00:00
Abramo Bagnara 19fd03e277 Fixed class type generation for MemberPointerType.
llvm-svn: 127401
2011-03-10 10:18:27 +00:00
Ted Kremenek a099c595bf When doing reachability analysis for warnings issued under DiagRuntimeBehavior, don't construct a ParentMap or CFGStmtMap.
Instead, create a small set of Stmt* -> CFGBlock* mappings during CFG construction for only the statements we care about
relating to the diagnostics we want to check for reachability.

llvm-svn: 127396
2011-03-10 03:50:34 +00:00
Daniel Dunbar 334b2136f6 Revert r127206 "Detect attempts to provide a specialization of a function within
a...", it appears to cause us to reject various valid codes.

llvm-svn: 127373
2011-03-09 23:24:34 +00:00
Fariborz Jahanian b296e330a3 Property setter/getter must be looked up in property type's
list of protocols as well. // rdar://9078584

llvm-svn: 127367
2011-03-09 22:17:12 +00:00
Fariborz Jahanian 3dc11ad796 Lookup selector in protocol list of qualified objc type
to avoid a bogus warning. // rdar:// 9072298

llvm-svn: 127355
2011-03-09 20:18:06 +00:00
Abramo Bagnara 29c2d46786 Fixed InnerLocStart.
llvm-svn: 127330
2011-03-09 14:09:51 +00:00
John McCall 6a014d5c30 Add a bit to ParmVarDecl indicating whether the parameter undergoes
K&R-style default argument promotion.

llvm-svn: 127313
2011-03-09 04:22:44 +00:00
Abramo Bagnara 6111db9e9c Fixed isEmbeddedInDeclarator flag loading.
llvm-svn: 127285
2011-03-08 22:33:38 +00:00
Fariborz Jahanian 08891f5249 Warn on usage of unavailable objc 'class' in
varienty of cases. // rdar://9092208

llvm-svn: 127257
2011-03-08 19:12:46 +00:00
Douglas Gregor f2f0806f71 Teach libclang's token-annotation logic about context-sensitive
keywords for Objective-C+ and C++0x. 

llvm-svn: 127253
2011-03-08 17:10:18 +00:00
Abramo Bagnara ea94788cf4 Fixed source range for StaticAssertDecl and LinkageSpecDecl. Fixed source range for declarations using postfix types.
llvm-svn: 127251
2011-03-08 16:41:52 +00:00
Abramo Bagnara b5545be14b Fixed NamespaceDecl source range.
llvm-svn: 127242
2011-03-08 12:38:20 +00:00
Abramo Bagnara dff1930bf7 Fixed source range for all DeclaratorDecl's.
llvm-svn: 127225
2011-03-08 08:55:46 +00:00
John Wiegley b4a9e51342 Removed trailing whitespace as a test commit
llvm-svn: 127223
2011-03-08 08:13:22 +00:00
John McCall 462c055d85 Fix my earlier commit to work with escaped newlines and leave breadcrumbs
in case we want to make a world where we can check intermediate instantiations
for this kind of breadcrumb.

llvm-svn: 127221
2011-03-08 07:59:04 +00:00
John McCall ed14ad24e0 objc_gc wants a pointer type, not a function type; give it a more appropriate
diagnostic.  Also, these attributes are commonly written with macros which we
actually pre-define, so instead of expanding the macro location, refer to the
instantiation location and name it using the macro loc.

llvm-svn: 127219
2011-03-08 04:17:03 +00:00
John McCall 97c250405b Update the check for a NULL macro to use Preprocessor::getSpelling().
llvm-svn: 127217
2011-03-08 04:07:54 +00:00
Douglas Gregor 6203d49b0e Detect attempts to provide a specialization of a function within a
dependent scope and produce an error (rather than crashing). Fixes PR8979.

llvm-svn: 127206
2011-03-08 02:04:14 +00:00
Argyrios Kyrtzidis 7e25a95600 g++ is more permissive regarding flexible arrays.
It will accept flexible array in union and also as the sole element of a struct/class.

Fixes rdar://9065507.

llvm-svn: 127171
2011-03-07 20:04:04 +00:00
Douglas Gregor db44611f2e Support explicit template specialization and instantiation for members
of a C++0x inline namespace within enclosing namespaces, as noted in
C++0x [namespace.def]p8.

Fixes <rdar://problem/9006349>, a libc++ failure where Clang was
rejected an explicit specialization of std::swap (since libc++ puts it
into an inline, versioned namespace std::__1).

llvm-svn: 127162
2011-03-07 16:54:27 +00:00
Douglas Gregor 11ddf1361d When rebuilding a dependent template specialization type to another
dependent template specialization type, make sure to set the keyword
location. Fixes some valgrind issues introduced in r127150.

llvm-svn: 127159
2011-03-07 15:13:34 +00:00
Douglas Gregor 43f788f16c When transforming a dependent template specialization type, make sure
to set the source-location information for the template arguments to
the *transformed* source-location information, not the original
source-location information. Fixes <rdar://problem/8986308> (a libc++
SFINAE issue) and the Boost.Polygon failure.

llvm-svn: 127150
2011-03-07 02:33:33 +00:00
Douglas Gregor 0ec210bc88 Produce a diagnostic for unused overloaded expressions, from Faisal Vali!
llvm-svn: 127148
2011-03-07 02:05:23 +00:00
Abramo Bagnara 8ec9e07ed6 Used a nicer cast.
llvm-svn: 127134
2011-03-06 22:48:24 +00:00
Abramo Bagnara ead67d9b88 Improved type source location for long long type.
llvm-svn: 127132
2011-03-06 22:21:56 +00:00
Douglas Gregor 528ad93924 We may fail to map a declaration in a template to its instantiated
declaration because of interesting ordering dependencies while
instantiating a class template or member class thereof. Complain,
rather than asserting (+Asserts) or silently rejecting the code
(-Asserts).

Fixes the crash-on-invalid in PR8965. 

llvm-svn: 127129
2011-03-06 20:12:45 +00:00
Douglas Gregor 69735112d0 Fix copy-and-paste typo in the transformation of Microsoft __uuidof expressions, from Eric Niebler via John Wiegley
llvm-svn: 127123
2011-03-06 17:40:41 +00:00
Abramo Bagnara 5022863fd8 Completed source ranges fixes for all classes inheriting from TypeDecl.
llvm-svn: 127120
2011-03-06 16:09:14 +00:00
Abramo Bagnara b3185b00c5 Fixed TypedefDecl and TemplateTypeParameter source range.
llvm-svn: 127119
2011-03-06 15:48:19 +00:00
Sebastian Redl 7c6c9e971c Reinstate r127112, "Propagate new-style exception spec information to ExtProtoInfo.", this time with the missing header.
llvm-svn: 127118
2011-03-06 10:52:04 +00:00
Douglas Gregor d99609ae48 When performing template argument deduction for a non-reference
conversion function when we're binding the result to a reference, drop
cv-qualifiers on the type we're referring to, since we should be
deducing a type that can be adjusted (via cv-qualification) to the
requested type. Fixes PR9336, and the remaining Boost.Assign failure.

llvm-svn: 127117
2011-03-06 09:03:20 +00:00
NAKAMURA Takumi c92335a87c Revert r127112, "Propagate new-style exception spec information to ExtProtoInfo."
It seems missing "clang/Basic/ExceptionSpecificationType.h".

llvm-svn: 127115
2011-03-06 00:17:36 +00:00
Sebastian Redl 69d37125a9 Propagate new-style exception spec information to ExtProtoInfo.
llvm-svn: 127112
2011-03-05 22:42:26 +00:00
Sebastian Redl 802a45332a Propagate new-style exception spec information to Declarator.
llvm-svn: 127111
2011-03-05 22:42:13 +00:00
Douglas Gregor 9d9f8db4bc When substituting in for a template name, do not produce a qualified
template name as the result of substitution. The qualifier is handled
separately by the tree transformer, so we would end up in an
inconsistent state.

This is actually the last bit of PR9016, and possibly also fixes
PR8965. It takes Boost.Icl from "epic fail" down to a single failure.

llvm-svn: 127108
2011-03-05 20:06:51 +00:00
Abramo Bagnara 1c3af96724 Fixed LabelDecl source range and cleaned creation code.
llvm-svn: 127094
2011-03-05 18:21:20 +00:00
Douglas Gregor 43669f84ed When determining template instantiation arguments within a function
template (not a specialization!), use the "injected" function template
arguments, which correspond to the template parameters of the function
template. This is required when substituting into the default template
parameters of template template parameters within a function template.

Fixes PR9016.

llvm-svn: 127092
2011-03-05 17:54:25 +00:00
Douglas Gregor 20bf98b5f8 When transforming a substituted template type parameter, try to
transform the type that replaces the template type parameter. In the
vast majority of cases, there's nothing to do, because most template
type parameters are replaced with something non-dependent that doesn't
need further transformation. However, when we're dealing with the
default template arguments of template template parameters, we might
end up replacing a template parameter (of the template template
parameter) with a template parameter of the enclosing template. 
 
This addresses part of PR9016, but not within function
templates. That's a separate issue.

llvm-svn: 127091
2011-03-05 17:19:27 +00:00
Abramo Bagnara 5093578471 Improved MemberPointerType source locations.
llvm-svn: 127085
2011-03-05 14:42:21 +00:00
Matt Beaumont-Gay f8bb45f14d Much to my surprise, OverloadExprs can also point to function template decls.
llvm-svn: 127061
2011-03-05 02:42:30 +00:00
Douglas Gregor 550b98b1c5 When diagnostics are suppressed (e.g., because of code completion), don't trigger the ExprTemplates.empty() check at the end of a function body
llvm-svn: 127046
2011-03-04 23:08:02 +00:00
Douglas Gregor 93ded32026 Diagnose destructor templates. Fixes PR7904.
llvm-svn: 127042
2011-03-04 22:45:55 +00:00
Douglas Gregor 4cf85a725a When clearing a LookupResult structure, clear out the naming class,
too. Fixes PR7900.

While I'm in this area, improve the diagnostic when the type being
destroyed doesn't match either of the types we found.

llvm-svn: 127041
2011-03-04 22:32:08 +00:00
Douglas Gregor 8b6070bb9d Teach Sema::ActOnCXXNestedNameSpecifier and Sema::CheckTemplateIdType
to cope with non-type templates by providing appropriate
errors. Previously, we would either assert, crash, or silently build a
dependent type when we shouldn't. Fixes PR9226.

llvm-svn: 127037
2011-03-04 21:37:14 +00:00
Douglas Gregor 8c2d3f4248 After an error of any kind has occurred, don't assert when attempting
to find the instantiated declaration within a template instantiation
fails to do so. It's likely that the original instantiation got
dropped due to instantiation failures, which doesn't actually break
the invariants of the AST. This eliminates a number of
crash-on-invalid failures, e.g., PR9300.

llvm-svn: 127030
2011-03-04 20:42:52 +00:00
Douglas Gregor 55e6b31511 Patch up several Sema::FindInstantiatedDecl() callers, so that they'll
properly cope with NULL return values.

llvm-svn: 127024
2011-03-04 19:46:35 +00:00