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2013-02-26Fix assertion failure when a field is given an address space.Matt Arsenault
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176122 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26Fix initializer for variables with attribute address_space set.Matt Arsenault
This would error in C++ mode unless the variable also had a cv qualifier. e.g. __attribute__((address_space(2))) float foo = 1.0f; would error but __attribute__((address_space(2))) const float foo = 1.0f; would not. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176121 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26Warn on dropping the return value from a warn_unused_result function, even inMatt Beaumont-Gay
macros. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176114 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26Be more careful in applying pragma weak. Fixes pr14974.Rafael Espindola
GCC applies a pragma weak to a decl if it matches the mangled name. We used to apply if it matched the plain name. This patch is a compromise: we apply the pragma only if it matches the name and the decl has C language linkage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176110 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-26Unify clang/llvm attributes for asan/tsan/msan (Clang part)Kostya Serebryany
These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176076 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-24In Sema::InstantiateStaticDataMemberDefinition, pass the var decl to the ↵Argyrios Kyrtzidis
consumer just using ASTConsumer::HandleCXXStaticMemberVarInstantiation(), don't pass it with ASTConsumer::HandleTopLevelDecl. ASTConsumer::HandleTopLevelDecl is intended for user-written top-level decls; a consumer can treat an instantiated static data member however it wants of course. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175976 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Remove the CFGElement "Invalid" state.David Blaikie
Use Optional<CFG*> where invalid states were needed previously. In the one case where that's not possible (beginAutomaticObjDtorsInsert) just use a dummy CFGAutomaticObjDtor. Thanks for the help from Jordan Rose & discussion/feedback from Ted Kremenek and Doug Gregor. Post commit code review feedback on r175796 by Ted Kremenek. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175938 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Remove the hack that avoided mangling static functions in extern C contexts.Rafael Espindola
Weather we should give C language linkage to functions and variables with internal linkage probably depends on how much code assumes it. The standard says they should have no language linkage, but gcc and msvc assign them C language linkage. This commit removes the hack that was preventing the mangling on static functions declare in extern C contexts. It is an experiment to see if we can implement the rules in the standard. If it turns out that many users depend on these functions and variables having C language linkage, we should change isExternC instead and try to convince the CWG to change the standard. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175937 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
2013-02-22objective-C arg: provide fixit support whenFariborz Jahanian
c++'s named cast need be replaced for bridge casting. // rdar://12788838 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175923 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
2013-02-22Make sure pragmas don't attach visibility attributes to auto variables withRafael Espindola
internal linkage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175903 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[Sema] Semantic analysis for empty-declaration and attribute-declaration.Michael Han
Introduce a new AST Decl node "EmptyDecl" to model empty-declaration. Have attributes from attribute-declaration appertain to the EmptyDecl node by creating the AST representations of these attributes and attach them to the EmptyDecl node so these attributes can be sema checked just as attributes attached to "normal" declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175900 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Streamify getNameForDiagnostic and remove the string versions of ↵Benjamin Kramer
PrintTemplateArgumentList. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175894 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Fix MergeFunctionDecl implicit CC for static methods.Timur Iskhodzhanov
Patch by Alexander Zinenko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175890 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Don't crash if we try to apply 'alignas' to a variable declared with anRichard Smith
incomplete type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175880 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Handle alignas(foo...) pack expansions.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175875 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22In LookupResult::resolveKind(), when handling multiple found declarations, ↵Argyrios Kyrtzidis
ignore invalid declarations. This reduces the "ambiguous reference" errors (which are rather strange in C/ObjC) and fixes an assertion hit with an invalid code test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175869 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
2013-02-22Don't crash when applying an alloc_size attribute on a K&R function.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175867 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Implement C++11 [dcl.align]p6-p8, and C11 6.7.5/7. This had to be split out ofRichard Smith
the normal attribute-merging path, because we can't merge alignment attributes without knowing the complete set of alignment attributes which apply to a particular declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175861 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[libclang] Fix a crash with invalid code, while skip function bodies is enabled.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175860 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Only suppress instance context if a member is actuallyJohn McCall
accessible in its declaring class; otherwise we might fail to apply [class.protected] when considering accessibility in derived classes. Noticed by inspection; <rdar://13270329>. I had an existing test wrong. Here's why it's wrong: Follow the rules (and notation) of [class.access]p5. The naming class (N) is B and the context (R) is D::getX. - 'x' as a member of B is protected, but R does not occur in a member or friend of a class derived from B. - There does exist a base class of B, A, which is accessible from R, and 'x' is accessible at R when named in A because 'x' as a member of A is protected and R occurs in a member of a class, D, that is derived from A; however, by [class.protected], the class of the object expression must be equal to or derived from that class, and A does not derive from D. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175858 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22objective-C arc: Diagnostic can not say to use bridgeFariborz Jahanian
casts with c++ named casts. Change notes to say use bridge with c-style cast instead. // rdar://12788838 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175850 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Remove superfluous null pointer check. The pointer is used prior to this check.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175807 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Teach serialized diagnostics about notes without locations.Ted Kremenek
Along the way, improve a diagnostic for "previous declaration here" for implicit parameters. Fixes <rdar://problem/13211384>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175802 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Replace CFGElement llvm::cast support to be well-defined.David Blaikie
See r175462 for another example/more details. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175796 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Add support to Sema and CodeGen for floating point vector types in OpenCL.Joey Gouly
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175734 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-21Avoid implicit conversions of Optional<T> to bool.David Blaikie
This is a precursor to making Optional<T>'s operator bool 'explicit' when building Clang & LLVM as C++11. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175722 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
2013-02-20MCParser: Update method names per coding guidelines.Jim Grosbach
s/ParseMSInlineAsm/parseMSInlineAsm/ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175680 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
2013-02-20Add a new 'type_visibility' attribute to allow users toJohn McCall
control the visibility of a type for the purposes of RTTI and template argument restrictions independently of how visibility propagates to its non-type member declarations. Also fix r175326 to not ignore template argument visibility on a template explicit instantiation when a member has an explicit attribute but the instantiation does not. The type_visibility work is rdar://11880378 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175587 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20[preprocessor] Split the MacroInfo class into two separate concepts, ↵Argyrios Kyrtzidis
MacroInfo class for the data specific to a macro definition (e.g. what the tokens are), and MacroDirective class which encapsulates the changes to the "macro namespace" (e.g. the location where the macro name became active, the location where it was undefined, etc.) (A MacroDirective always points to a MacroInfo object.) Usually a macro definition (MacroInfo) is where a macro name becomes active (MacroDirective) but splitting the concepts allows us to better model the effect of modules to the macro namespace (also as a bonus it allows better modeling of push_macro/pop_macro #pragmas). Modules can have their own macro history, separate from the local (current translation unit) macro history; MacroDirectives will be used to model the macro history (changes to macro namespace). For example, if "@import A;" imports macro FOO, there will be a new local MacroDirective created to indicate that "FOO" became active at the import location. Module "A" itself will contain another MacroDirective in its macro history (at the point of the definition of FOO) and both MacroDirectives will point to the same MacroInfo object. Introducing the separation of macro concepts is the first part towards better modeling of module macros. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175585 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19PR15300: Support C++11 attributes on base-specifiers. We don't support any suchRichard Smith
attributes yet, so just issue the appropriate diagnostics. Also generalize the fixit for attributes-in-the-wrong-place code and reuse it here, if attributes are placed after the access-specifier or 'virtual' in a base specifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175575 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
2013-02-18Prevent crash on multiple user errors (which I cannot reproduce inFariborz Jahanian
a small test case). // rdar://13178483. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175450 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-16Don't warn on conversion from NULL to nullptr_tDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175331 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Fixed diagnostic nondeterministic order bug (pr14901).Enea Zaffanella
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175289 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Fix crash-on-invalid where a ParenListExpr shows up as a message receiverArgyrios Kyrtzidis
while trying to do error recovery. rdar://13207886 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175282 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15When a statement is dropped from the AST because it was invalid, make sureArgyrios Kyrtzidis
we don't do the scope checks otherwise we are going to hit assertion checks since a label may not have been actually added. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175281 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Sema: Unnest early exit and remove an unnecessary bad cast.Benjamin Kramer
cast<ObjCObjectPointerType> doesn't look through sugar, getAs does. Fixes PR15257. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175272 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Make helper functions static.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175265 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14objective-C: synthesize properties in order of theirFariborz Jahanian
declarations to synthesize their ivars in similar determinstic order so they are laid out in a determinstic order. // rdar://13192366 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175214 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14objective-C: When implementing custom accessor method forFariborz Jahanian
a property, the -Wdirect-ivar-access should not warn when accessing the property's synthesized instance variable. // rdar://13142820 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175195 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Remove a const_cast by propagating constness to called functionsDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175161 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Partially revert r175117 so that we don't break assumptions about howRafael Espindola
static functions in extern "C" contexts are mangled. Should fix the bootstrap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175132 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14merge hasCLanguageLinkage and isExternC. Keep the shorter name.Rafael Espindola
I added hasCLanguageLinkage while fixing some language linkage bugs some time ago so that I wouldn't have to check all users of isExternC. It turned out to be a much longer detour than expected, but this patch finally merges the two again. The isExternC function now implements just the standard notion of having C language linkage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175119 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14Add a getLanguageLinkage method to VarDecls and FunctionDecls. Use it to fixRafael Espindola
some cases where functions with no language linkage were being treated as having C language linkage. In particular, don't warn in extern "C" { static NonPod foo(); } Since getLanguageLinkage checks the language linkage, the linkage computation cannot use the language linkage. Break the loop by checking just the context in the linkage computation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175117 91177308-0d34-0410-b5e6-96231b3b80d8
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