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2011-05-16Don't actually emit calls to the reserved global placement new and deleteJohn McCall
operators; their semantics are guaranteed by the language. If someone wants to argue that freestanding compiles shouldn't recognize this, I might be convinceable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131395 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15main() exists in hosted, not freestanding implementations. Fixes theSean Hunt
build. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131390 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Add a method for checking whether a function is one of the reserved globalJohn McCall
placement allocation or deallocation functions. These functions cannot be replaced by the user and are exempt from the normal requirements on allocation functions (e.g. that they must return unaliased memory). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131386 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Re-enable the fix for PR9181 now that all the edge cases are handled.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131385 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15When checking a set of template parameter lists against aDouglas Gregor
nested-name-specifier, re-evaluate the nested-name-specifier as if we were entering that context (which we did!), so that we'll resolve a template-id to a particular class template partial specialization. Fixes PR9913. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131383 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15The array-size operand to a new-expression is not necessarily a size_t.John McCall
It can be larger, it can be smaller, it can be signed, whatever. Handle all the crazy cases with grace and spirit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Fix MSVC build.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131377 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Make CGF.getContext() inlinable, because it's trivial, and optimizeJohn McCall
hasAggregateLLVMType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131375 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15More killing of std::vector.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131374 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Use arrays and SmallVectors instead of std::vectors when building functionJohn McCall
types. Also, cache a translation of 'void' in CGM and provide a ptrdiff_t alias. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131373 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Disable the optimization until the bug noticed by Sean Hunt has been fixed.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131372 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-15Fix generation of obj-c @encoding for members with zero size.Argyrios Kyrtzidis
Also follow gcc in that arrays of elements with zero size are encoded as arrays with zero elements. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14When emitting the destructor for a class with a vtable, if we can determineAnders Carlsson
that the destructor body is trivial and that all member variables also have either trivial destructors or trivial destructor bodies, we don't need to initialize the vtable pointers since no virtual member functions will be called on the destructor. Fixes PR9181. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131368 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Let clang-check actually use the Directory entry in the json file.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131367 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Only perform the null-initialization of an aggregate result of a messageJohn McCall
send if the receiver is null. Normally it's not worthwhile to check this, but avoiding the null-initialization is nice, and this also avoids nasty problems where the null-initialization is visible within the call because we use an aliased result buffer. rdar://problem/9402992 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Create proper Objective-C @encoding for C++ classes; fixes rdar://9357400.Argyrios Kyrtzidis
Go through and expand the members of bases into the encoding string (and encode the VTable as well). Unlike gcc which expands virtual bases as many times as they appear in the hierarchy, clang will only expand them once at the end, to reflect the actual layout. Note that there doesn't seem to be a way to indicate in the encoding that packing/alignment of members is different that normal, in which case the encoding will be out-of-sync with the real layout. If the runtime switches to just consider the size of types without taking into account alignment, we could easily make padding explicit in the encoding (e.g. using arrays of chars). The encoding strings would be longer then though. Also encode a flexible array member as array of 0 size, like gcc, not as a pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131365 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Emit an error when trying to @encode an incomplete type.Argyrios Kyrtzidis
There are APIs, e.g. [NSValue valueWithBytes:objCType:], which use the encoding to find out the size of an object pointed to by a pointer. Make things safer by making it illegal to @encode incomplete types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131364 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Revert 131347. It asserts if the specialization in within a class template:Francois Pichet
template<class U> struct X1 { template<class T> void f(T*); template<> void f(int*) { } }; Won't be so simple. I need to think more about it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131362 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Make sure we actually generate defaulted copy constructors; caught bySean Hunt
Howard Hinnant. Thanks! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131349 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14In Microsoft mode, allow template function explicit specialization at class ↵Francois Pichet
scope. Necessary to parse MFC and MSVC standard lib code. Example: struct X { template<class T> void f(T) { } template<> void f(int) { } } git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131347 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14PR9908: Fix the broken fix for PR9902 to get the template argument lists in ↵Richard Smith
the right order. Also, don't reject alias templates in all ElaboratedTypes: some ElaboratedTypes do not correspond to elaborated-type-specifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131342 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14What I hope to be an implementation of defaulted copy assignmentSean Hunt
operators. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131338 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14More progress towards defaulted copy assignmentSean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131337 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Start implementing defaulted copy assignmentSean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131336 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Objective-C vtables are not taking the world by storm; call themJohn McCall
out as "v-table" message sends and stop calling normal messages "legacy" message sends. Also, fix some comments to reveal the true state of affairs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131335 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Reorganize this method to avoid multiple calls for computing CGFunctionInfoJohn McCall
and to decrease the amount of effort in appending strings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131323 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13SimplifyJoerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131321 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Bug 8765: Honor assembler labels for builtins. Ensure that the label isJoerg Sonnenberger
mangled to avoid doing it twice for platforms that use prefixes like Darwin. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131311 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Include assembler label for functions in the XML dumpJoerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131310 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Fix copy constructor deletion detection with array types.Sean Hunt
This fixes PR9910 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131309 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Introduce __has_extension macroPeter Collingbourne
__has_extension is a function-like macro which takes the same set of feature identifiers as __has_feature. It evaluates to 1 if the feature is supported by Clang in the current language (either as a language extension or a standard language feature) or 0 if not. At the same time, add support for the C1X feature identifiers c_generic_selections (renamed from generic_selections) and c_static_assert, and document them. Patch by myself and Jean-Daniel Dupas. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131308 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Define __ARM_NEON__ in both ARM and Thumb modes. Radar 9431992.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131301 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Remove the 'unaligned load' builtins now that they're no longer used in the ↵Bill Wendling
*mmintrin.h files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131300 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Produce UTF-8 strings with -fconstant-string-classFariborz Jahanian
-fno-constant-cfstrings. Patch by Jonathan Schleifer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131298 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13refactor CheckForwardProtocolDeclarationForCircularDependency returnsFariborz Jahanian
'true' on detecting protocol cycles. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131297 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Defaulting copy constructors now works reasonably well.Sean Hunt
One more special member to go git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131287 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Refactoring of constant expression evaluatorPeter Collingbourne
This introduces a generic base class for the expression evaluator classes, which handles a few common expression types which were previously handled separately in each class. Also, the expression evaluator now uses ConstStmtVisitor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131281 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Add 'may_alias' attribute. Noticed by Eli.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131278 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13When determining whether we can make a declaration into a globalDouglas Gregor
constant, also consider whether it's a class type that has any mutable fields. If so, it can't be a global constant. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131276 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Teach the template parameter dependency checker used when matchingDouglas Gregor
template parameter lists to scope specifiers for friend declarations about injected class name types. Fixes the g++.dg/template/memfriend5.C regression in the GCC testsuite. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131272 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Implement the __is_trivially_copyable type traitSean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131270 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Represent the unaligned loads natively. These are converted into a call to theBill Wendling
correct unaligned load. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131268 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Implement defaulting of destructors.Sean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131260 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12HrmSean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131259 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12After issuing diagnostics on circular protocol list,Fariborz Jahanian
don't build circular AST in protocol's protocol list when user code has introduced it. Indexer and other clients may crash. // rdar://9221614 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131254 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name.Devang Patel
s/DW_AT_APPLE_objc_class_extension/DW_AT_APPLE_objc_complete_type/g git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131245 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Do not add AT_APPLE_objc_class_extension attribute if @implementation is not ↵Devang Patel
seen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131242 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12enable __has_feature(is_standard_layout)Howard Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131240 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Use DW_AT_APPLE_objc_class_extension attribute to identify interfaces that ↵Devang Patel
represent class extension. Radar 9423077. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131239 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12LLVM doesn't always optimize away the four loads from this:Bill Wendling
(__m128){ p[0], p[1], p[2], p[3] } which produces really bad code. This could be done in instcombine, but it's probably better to do it in the front-end instead. <rdar://problem/9424836> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131237 91177308-0d34-0410-b5e6-96231b3b80d8
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