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path: root/lib/Sema/SemaType.cpp
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2013-05-04Implement most of N3638 (return type deduction for normal functions).Richard Smith
Missing (somewhat ironically) is support for the new deduction rules in lambda functions, plus PCH support for return type patching. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181108 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Separate out and special-case the diagnostic for 'auto' in aRichard Smith
conversion-type-id, in preparation for this becoming valid in c++1y mode. No functionality change; small diagnostic improvement. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181089 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-30Fix PR15845: apparently MSVC does not support implicit int in C++ mode.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180822 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-30Don't treat a non-deduced 'auto' type as being type-dependent. Instead, thereRichard Smith
are now two distinct canonical 'AutoType's: one is the undeduced 'auto' placeholder type, and the other is a deduced-but-dependent type. All deduced-to-a-non-dependent-type cases are still non-canonical. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180789 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-26Implement C++1y decltype(auto).Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180610 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22C++1y constexpr extensions, round 1: Allow most forms of declaration andRichard Smith
statement in constexpr functions. Everything which doesn't require variable mutation is also allowed as an extension in C++11. 'void' becomes a literal type to support constexpr functions which return 'void'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180022 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-20Disable VLA diagnostic in C++1y mode, and add some tests.Richard Smith
Still to do here: - we have a collection of syntactic accepts-invalids to diagnose - support non-PODs in VLAs, including dynamic initialization / destruction - runtime checks (and throw std::bad_array_length) for bad bound - support VLA capture by reference in lambdas - properly support VLAs in range-based for (don't recompute bound) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179962 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03Add 178663 back.Rafael Espindola
http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb went back green before it processed the reverted 178663, so it could not have been the culprit. Revert "Revert 178663." This reverts commit 4f8a3eb2ce5d4ba422483439e20c8cbb4d953a41. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178682 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03Revert 178663.Rafael Espindola
Looks like it broke http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb Revert "Don't compute a patched/semantic storage class." This reverts commit 8f187f62cb0487d31bc4afdfcd47e11fe9a51d05. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178681 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03Don't compute a patched/semantic storage class.Rafael Espindola
For variables and functions clang used to store two storage classes. The one "as written" in the code and a patched one, which, for example, propagates static to the following decls. This apparently is from the days clang lacked linkage computation. It is now redundant and this patch removes it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178663 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28[ms-cxxabi] Add more tests for r178297Reid Kleckner
This covers a few cases where the class of a member pointer is not a CXXRecordDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178307 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28[sema] Check the result of getAsCXXRecordDecl() to fix the buildReid Kleckner
I'm not 100% sure what should happen here to find the real CXXRecordDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178297 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28[sema] Remove unused variable from r178283Reid Kleckner
Wouldn't it be cool if we had a compiler for Windows that could warn about these things? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178289 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28[ms-cxxabi] Correctly compute the size of member pointersReid Kleckner
Summary: This also relaxes the requirement on Windows that the member pointer class type be a complete type (http://llvm.org/PR12070). We still ask for a complete type to instantiate any templates (MSVC does this), but if that fails we continue as normal, relying on any inheritance attributes on the declaration. Reviewers: rjmccall CC: triton, timurrrr, cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D568 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178283 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28For -Wignored-qualifiers, don't warn on qualifiers which we acquire via aRichard Smith
typedef. Also don't warn on the _Atomic type specifier, just on the _Atomic type qualifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178218 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Teach -Wigored-qualifiers about exotic flavors of declarator and the _Atomic ↵Richard Smith
type qualifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178217 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Remove outdated FIXME.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178211 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Support C11 _Atomic type qualifier. This is more-or-less just syntactic ↵Richard Smith
sugar for the _Atomic type specifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178210 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Fold together the two implementations of 6.7.3p2 in SemaType. Fix two bugs, ↵Richard Smith
each of which was only present in one version: * Give the right diagnostic for 'restrict' applied to a non-pointer, non-reference type. * Don't reject 'restrict' applied indirectly to an Objective-C object pointer type (eg, through template instantiation). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178200 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27Don't reject __restrict applied to a dependent type; it might instantiate to ↵Richard Smith
a pointer or reference type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178198 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-08Sema: Preserve attributes on parameters in instantiated function templates.Jordan Rose
This was causing correctness issues for ARC and the static analyzer when a function template has "consumed" Objective-C object parameters (i.e. parameters that will be released by the function before returning). The fix is threefold: (1) Actually copy over the attributes from old ParmVarDecls to new ones. (2) Have Sema::BuildFunctionType only work for building FunctionProtoTypes, which it was doing anyway. This allows us to pass an ExtProtoInfo instead of a plain ExtInfo and several flags. (3) Drop param attributes as part of StripImplicitInstantiation, which is used when an implicit instantiation is followed by an explicit one. <rdar://problem/12685622> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176728 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-08ArrayRef-ize ASTContext::getFunctionType and Sema::BuildFunctionType.Jordan Rose
No (intended) functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176726 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-05Silence a number of static analyzer warnings with assertions and such.Jordan Rose
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176469 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-01Attempt to not place ownership qualifiers on the result typeJohn McCall
of block declarators. Document the rule we use. Also document the rule that Doug implemented a few weeks ago which drops ownership qualifiers on function result types. rdar://10127067 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176336 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Revert r175912, "Add support for coldcc to clang" at John's request.Peter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175936 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Add support for coldcc to clangPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175912 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22When a parameter list in a C function has an error, recover by forming a K&R ↵Argyrios Kyrtzidis
function, instead of a non-function type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175868 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Use None rather than Optional<T>() where possible.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175705 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20Include llvm::Optional in clang/Basic/LLVM.hDavid Blaikie
Post-commit CR feedback from Jordan Rose regarding r175594. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175679 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20Process and handle attributes on conditions and for loop variables. Process andRichard Smith
diagnose attributes on alias declarations, using directives, and attribute declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175649 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-18Replace TypeLoc llvm::cast support to be well-defined.David Blaikie
The TypeLoc hierarchy used the llvm::cast machinery to perform undefined behavior by casting pointers/references to TypeLoc objects to derived types and then using the derived copy constructors (or even returning pointers to derived types that actually point to the original TypeLoc object). Some context is in this thread: http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-December/056804.html Though it's spread over a few months which can be hard to read in the mail archive. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175462 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Diagnose loads of 'half' l-values in OpenCL.John McCall
Patch by Joey Gouly! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174928 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Add OpenCL samplers as Clang builtin types and check sampler related ↵Guy Benyei
restrictions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174601 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Downgrade 'attribute ignored when parsing type' from error to warning, to matchRichard Smith
the diagnostic's warn_ name. Switch some places (notably C++11 attributes) which really wanted an error over to a different diagnostic. Finally, suppress the diagnostic entirely for __ptr32, __ptr64 and __w64, to avoid producing diagnostics in important system headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173788 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Replace AS_MSTypespec with AS_Keyword, for representing any attribute spelledRichard Smith
as a keyword. Rationalize existing attributes to use it as appropriate, and to not lie about some __declspec attributes being GNU attributes. In passing, remove a gross hack which was discarding attributes which we could handle. This results in us actually respecting the __pascal keyword again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173746 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25First pass at abstracting out a class for the target C++ ABI.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173514 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Implement -Wvla correctlyDmitri Gribenko
GCC implements -Wvla as "warn on every VLA" (this is useful to find every VLA, for example, if they are forbidden by coding guidelines). Currently Clang implements -Wvla as "warn on VLA when it is an extension". The attached patch makes our behavior match GCC. The existing vla extwarn is moved under -Wvla-extension and is still included into -Wgnu. This fixes PR5953. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173286 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Add a new LangOpt NativeHalfType. This option allows for native half/fp16Joey Gouly
operations (as opposed to storage only half/fp16). Also add some semantic checks for OpenCL half types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173254 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20Implement OpenCL event_t as Clang builtin type, including event_t related ↵Guy Benyei
OpenCL restrictions (OpenCL 1.2 spec 6.9) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172973 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17In Objective-C ARC, completely ignore ownership qualifiers on theDouglas Gregor
return type of a function by canonicalizing them away. They are useless anyway, and conflict with our rules for template argument deduction and __strong. Fixes <rdar://problem/12367446>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172768 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Add some semantic checks for OpenCL. Variadic macros, VLAs and bitfields are ↵Joey Gouly
not supported. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172732 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Implement C++11 semantics for [[noreturn]] attribute. This required splittingRichard Smith
it apart from [[gnu::noreturn]] / __attribute__((noreturn)), since their semantics are not equivalent (for instance, we treat [[gnu::noreturn]] as affecting the function type, whereas [[noreturn]] does not). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172691 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15Fix behavior of [[gnu::]] function attributes. Per g++'s behavior, theseRichard Smith
attributes appertain to a declaration, even though they would be much more naturally modelled as appertaining to a function type. Previously, we would try to distribute them from the declarator to the function type, then reject them for being at an incorrect location. Now, we just distribute them as far as the declarator; the existing attribute handling code can actually apply them there just fine. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172504 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Accept [[gnu::*]] for all __attribute__((*))s which are:Richard Smith
1) Supported by Clang, and 2) Supported by GCC, and 3) Documented in GCC's manual. g++ allows its C++11-style attributes to appertain only to the entity being declared, and never to a type (even for a type attribute), so we do the same. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172382 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14PR12008: defer adding the implicit 'const' to a constexpr member function untilRichard Smith
we know whether it is static. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172376 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-13Remove some duplication in the handling of __attribute__((ext_vector_size(N))).Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172340 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Provide Decl::getOwningModule(), which determines the (sub)module inDouglas Gregor
which a particular declaration resides. Use this information to customize the "definition of 'blah' must be imported from another module" diagnostic with the module the user actually has to import. Additionally, recover by importing that module, so we don't complain about other names in that module. Still TODO: coming up with decent Fix-Its for these cases, and expand this recovery approach for other name lookup failures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172290 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11Fixed an assertion failure triggered by invalid code.Enea Zaffanella
Set invalid type of declarator after emitting error diagnostics, so that it won't be later considered when instantiating the template. Added test5_inst in test/SemaCXX/condition.cpp for non-regression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172201 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Back out my no-op change from r171783.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171817 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Use the C++11 POD definition in C++11 mode to determine whether oneDouglas Gregor
can create a VLA of class type. Fixes <rdar://problem/12151822>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171783 91177308-0d34-0410-b5e6-96231b3b80d8
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