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2011-04-15C1X: implement generic selectionsPeter Collingbourne
As an extension, generic selection support has been added for all supported languages. The syntax is the same as for C1X. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129554 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15C1X: add a language standardPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129553 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-14Add support for C++0x's range-based for loops, as specified by the C++11 ↵Richard Smith
draft standard (N3291). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129541 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-14Chained PCH: Remember when additional specializations are added to a ↵Sebastian Redl
function template from a previous PCH. Fixes the only crasher when using massive chains on Clang's Sema component. We still have some incomplete codegen there. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129516 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12Fix AST serialization of reference-to-reference types. This previously causedRichard Smith
a crash when deserializing the AST for this: typedef char (&R); extern R &r; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129358 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-09PR8369: make __attribute((regparm(0))) work correctly. Original patch byEli Friedman
pageexec@freemail.hu, tweaks by me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129206 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23Implement a new 'availability' attribute, that allows one to specifyDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128127 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12Propagate the new exception information to FunctionProtoType.Sebastian Redl
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12Forgotten part of previous commit.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08When writing file references in a pch, make sure to ask the file manager for ↵Anders Carlsson
the absolute path. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127248 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-06Write CXX base specifier offsets for chained ASTs.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127126 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05Improved MemberPointerType source locations.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127085 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05Currently we can only remap a file by creating a MemoryBuffer and replacing ↵Argyrios Kyrtzidis
the file contents with it. Allow remapping a file by specifying another filename whose contents should be loaded if the original file gets loaded. This allows to override files without having to create & load buffers in advance. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127052 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02Push nested-name-specifier source location information into templateDouglas Gregor
template arguments. I believe that this is the last place in the AST where we were storing a source range for a nested-name-specifier rather than a proper nested-name-specifier location structure. (Yay!) There is still a lot of cleanup to do in the TreeTransform, which doesn't take advantage of nested-name-specifiers with source-location information everywhere it could. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Push nested-name-specifier source-location information into dependentDouglas Gregor
template specialization types. There are still a few rough edges to clean up with some of the parser actions dropping nested-name-specifiers too early. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126776 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Reinstate the introduction of source-location information forDouglas Gregor
nested-name-speciciers within elaborated type names, e.g., enum clang::NestedNameSpecifier::SpecifierKind Fixes in this iteration include: (1) Compute the type-source range properly for a dependent template specialization type that starts with "template template-id ::", as in a member access expression dep->template f<T>::f() This is a latent bug I triggered with this change (because now we're checking the computed source ranges for dependent template specialization types). But the real problem was... (2) Make sure to set the qualifier range on a dependent template specialization type appropriately. This will go away once we push nested-name-specifier locations into dependent template specialization types, but it was the source of the valgrind errors on the buildbots. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Implement -mrtd which sets the StdCall calling convention to be the defaultRoman Divacky
one. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126756 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Revert r126748, my second attempt at nested-name-specifier sourceDouglas Gregor
location information for elaborated types. *sigh* git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126753 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Reinstate r126737, extending the generation of type-source locationDouglas Gregor
information for qualifier type names throughout the parser to address several problems. The commit message from r126737: Push nested-name-specifier source location information into elaborated name types, e.g., "enum clang::NestedNameSpecifier::SpecifierKind". Aside from the normal changes, this also required some tweaks to the parser. Essentially, when we're looking at a type name (via getTypeName()) specifically for the purpose of creating an annotation token, we pass down the flag that asks for full type-source location information to be stored within the returned type. That way, we retain source-location information involving nested-name-specifiers rather than trying to reconstruct that information later, long after it's been lost in the parser. With this change, test/Index/recursive-cxx-member-calls.cpp is showing much improved results again, since that code has lots of nested-name-specifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126748 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Revert r126737, the most recent nested-name-specifier location change, for ↵Douglas Gregor
buildbot breakage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126746 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Push nested-name-specifier source location information into elaboratedDouglas Gregor
name types, e.g., "enum clang::NestedNameSpecifier::SpecifierKind". Aside from the normal changes, this also required some tweaks to the parser. Essentially, when we're looking at a type name (via getTypeName()) specifically for the purpose of creating an annotation token, we pass down the flag that asks for full type-source location information to be stored within the returned type. That way, we retain source-location information involving nested-name-specifiers rather than trying to reconstruct that information later, long after it's been lost in the parser. With this change, test/Index/recursive-cxx-member-calls.cpp is showing much improved results again, since that code has lots of nested-name-specifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Push nested-name-specifier source location information intoDouglas Gregor
DependentNameTypeLoc. Teach the recursive AST visitor and libclang how to walk DependentNameTypeLoc nodes. Also, teach libclang about TypedefDecl source ranges, so that we get those. The massive churn in test/Index/recursive-cxx-member-calls.cpp is a good thing: we're annotating a lot more of this test correctly now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126729 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25Use NestedNameSpecifierLoc within out-of-line variables, function, andDouglas Gregor
tag definitions. Also, add support for template instantiation of NestedNameSpecifierLocs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126470 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25Update UsingDecl, UnresolvedUsingTypenameDecl, andDouglas Gregor
UnresolvedUsingValueDecl to use NestedNameSpecifierLoc rather than the extremely-lossy NestedNameSpecifier/SourceRange pair it used to use, improving source-location information. Various infrastructure updates to support NestedNameSpecifierLoc: - AST/PCH (de-)serialization - Recursive AST visitor - libclang traversal (including the first tests of this functionality) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126459 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24Teach NestedNameSpecifier to keep track of namespace aliases the sameDouglas Gregor
way it keeps track of namespaces. Previously, we would map from the namespace alias to its underlying namespace when building a nested-name-specifier, losing source information in the process. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126358 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23Add a CXXExceptions flag to LangOptions.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126299 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20Implement the C++0x deduced 'auto' feature.Richard Smith
This fixes PR 8738, 9060 and 9132. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126069 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19Add a new ObjCExceptions member variable to LangOptions. This controls ↵Anders Carlsson
whether Objective-C exceptions are enabled or not (they are by default). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126061 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Serialization/deserialization support for floating point #pragmaPeter Collingbourne
options, enabled OpenCL extensions and default FP_CONTRACT setting. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125589 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Allow resolving headers from a PCH even after headers+PCH were moved to ↵Argyrios Kyrtzidis
another path. Store in PCH the directory that the PCH was originally created in. If a header file is not found at the path that we expect it to be and the PCH file was moved from its original location, try to resolve the file by assuming that header+PCH were moved together and the header is in the same place relative to the PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Eliminate a major performance problem with chained PCH, where we wereDouglas Gregor
causing the deserialization of a large number of declarations when writing the visible-updates record for the translation unit in C. This takes us from: *** AST File Statistics: 2 stat cache hits 6 stat cache misses 1/64463 source location entries read (0.001551%) 15606/16956 types read (92.038216%) 59266/89334 declarations read (66.342041%) 38952/61393 identifiers read (63.446976%) 0/7778 selectors read (0.000000%) 24192/34644 statements read (69.830276%) 388/8809 macros read (4.404586%) 2095/5189 lexical declcontexts read (40.373867%) 0/4587 visible declcontexts read (0.000000%) 0/7716 method pool entries read (0.000000%) 0 method pool misses to *** AST File Statistics: 2 stat cache hits 6 stat cache misses 1/64463 source location entries read (0.001551%) 26/16956 types read (0.153338%) 18/89334 declarations read (0.020149%) 145/61393 identifiers read (0.236183%) 0/7778 selectors read (0.000000%) 21/34644 statements read (0.060617%) 0/8809 macros read (0.000000%) 0/5189 lexical declcontexts read (0.000000%) 0/4587 visible declcontexts read (0.000000%) 0/7716 method pool entries read (0.000000%) 0 method pool misses when generating a chained PCH for a header that #includes Cocoa.h (from a PCH file) and adds one simple function declaration. The generated PCH file is now only 9580 bytes (down from > 2MB). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125326 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Implement AST/PCH chaining support for macro definitions. Previously,Douglas Gregor
we would deserialize all of the macro definitions we knew about while serializing the macro definitions at the end of the AST/PCH file. Even though we skipped most of them (since they were unchanged), it's still a performance problem. Now, we do the standard AST/PCH chaining trick: watch what identifiers are deserialized as macro names, and consider only those identifiers (along with macro definitions that have been deserialized/written in the source) when serializing the preprocessor state. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125324 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10When we're writing macro definitions to an AST/PCH File, sort theDouglas Gregor
macro definitions by macro name first. That way, we'll get a stable ordering in the AST/PCH file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125297 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10Implement two related optimizations that make de-serialization ofDouglas Gregor
AST/PCH files more lazy: - Don't preload all of the file source-location entries when reading the AST file. Instead, load them lazily, when needed. - Only look up header-search information (whether a header was already #import'd, how many times it's been included, etc.) when it's needed by the preprocessor, rather than pre-populating it. Previously, we would pre-load all of the file source-location entries, which also populated the header-search information structure. This was a relatively minor performance issue, since we would end up stat()'ing all of the headers stored within a AST/PCH file when the AST/PCH file was loaded. In the normal PCH use case, the stat()s were cached, so the cost--of preloading ~860 source-location entries in the Cocoa.h case---was relatively low. However, the recent optimization that replaced stat+open with open+fstat turned this into a major problem, since the preloading of source-location entries would now end up opening those files. Worse, those files wouldn't be closed until the file manager was destroyed, so just opening a Cocoa.h PCH file would hold on to ~860 file descriptors, and it was easy to blow through the process's limit on the number of open file descriptors. By eliminating the preloading of these files, we neither open nor stat the headers stored in the PCH/AST file until they're actually needed for something. Concretely, we went from *** HeaderSearch Stats: 835 files tracked. 364 #import/#pragma once files. 823 included exactly once. 6 max times a file is included. 3 #include/#include_next/#import. 0 #includes skipped due to the multi-include optimization. 1 framework lookups. 0 subframework lookups. *** Source Manager Stats: 835 files mapped, 3 mem buffers mapped. 37460 SLocEntry's allocated, 11215575B of Sloc address space used. 62 bytes of files mapped, 0 files with line #'s computed. with a trivial program that uses a chained PCH including a Cocoa PCH to *** HeaderSearch Stats: 4 files tracked. 1 #import/#pragma once files. 3 included exactly once. 2 max times a file is included. 3 #include/#include_next/#import. 0 #includes skipped due to the multi-include optimization. 1 framework lookups. 0 subframework lookups. *** Source Manager Stats: 3 files mapped, 3 mem buffers mapped. 37460 SLocEntry's allocated, 11215575B of Sloc address space used. 62 bytes of files mapped, 0 files with line #'s computed. for the same program. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125286 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09AST, Sema, Serialization: add CUDAKernelCallExpr and related semantic actionsPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125217 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09AST, Sema, Serialization: keep track of cudaConfigureCallPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125216 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08Split the serialized representation for the detailed preprocessingDouglas Gregor
record away from the core processor record. The tangling of these two data structures led to some inefficiencies (e.g., deserializing all of the detailed preprocessing record when we didn't need it, such as while performing code completion) along with some unnecessary ugliness. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125117 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08Update the writing of the block-information block in the AST fileDouglas Gregor
format, so that llvm-bcanalyzer knows about all of the various record kinds. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125086 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-05Basic implementation of inherited constructors. Only generates declarations, ↵Sebastian Redl
and probably only works for very basic use cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124970 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-01Basic support for -mms-bitfields, from Carl Norum!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124661 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Rvalue references for *this: Douglas Gregor
- Add ref-qualifiers to the type system; they are part of the canonical type. Print & profile ref-qualifiers - Translate the ref-qualifier from the Declarator chunk for functions to the function type. - Diagnose mis-uses of ref-qualifiers w.r.t. static member functions, free functions, constructors, destructors, etc. - Add serialization and deserialization of ref-qualifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124281 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24Use attributes for all the override control specifiers.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124122 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-22Serialize and deserialize IsMarkedFinal/IsMarkedExplicit.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124041 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-21Generalise support for non-inheritable attributesPeter Collingbourne
Inheritable attributes on declarations may be inherited by any later redeclaration at merge time. By contrast, a non-inheritable attribute will not be inherited by later redeclarations. Non-inheritable attributes may be semantically analysed early, allowing them to influence the redeclaration/overloading process. Before this change, the "overloadable" attribute received special handling to be treated as non-inheritable, while all other attributes were treated as inheritable. This patch generalises the concept, while removing a FIXME. Some CUDA location attributes are also marked as non-inheritable in order to support special overloading semantics (to be introduced in a later patch). The patch introduces a new Attr subclass, InheritableAttr, from which all inheritable attributes derive. Non-inheritable attributes simply derive from Attr. N.B. I did not review every attribute to determine whether it should be marked non-inheritable. This can be done later on an incremental basis, as this change does not affect default functionality. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-15Introduce a new kind of TemplateName that captures a substitutedDouglas Gregor
template template parameter pack that cannot be fully expanded because its enclosing pack expansion could not be expanded. This form of TemplateName plays the same role as SubstTemplateTypeParmPackType and SubstNonTypeTemplateParmPackExpr do for template type parameter packs and non-type template parameter packs, respectively. We should now handle these multi-level pack expansion substitutions anywhere. The largest remaining gap in our variadic-templates support is that we cannot cope with non-type template parameter packs whose type is a pack expansion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-15Store/retrieve -fshort-enums for PCH, fixes rdar://8854933.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123510 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-14Teach template template argument pack expansions to keep track of theDouglas Gregor
number of expansions, when we know it, and propagate that information through Sema. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123493 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-14Properly propagate #pragma diagnostic mappings from PCH but not command-line ↵Argyrios Kyrtzidis
warning flags. Addresses rdar://8435969&8852495 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123462 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-14Keep track of the number of expansions to be produced from a type packDouglas Gregor
expansion, when it is known due to the substitution of an out parameter pack. This allows us to properly handle substitution into pack expansions that involve multiple parameter packs at different template parameter levels, even when this substitution happens one level at a time (as with partial specializations of member class templates and the signatures of member function templates). Note that the diagnostic we provide when there is an arity mismatch between an outer parameter pack and an inner parameter pack in this case isn't as clear as the normal diagnostic for an arity mismatch. However, this doesn't matter because these cases are very, very rare and (even then) only typically occur in a SFINAE context. The other kinds of pack expansions (expression, template, etc.) still need to support optional tracking of the number of expansions, and we need the moral equivalent of SubstTemplateTypeParmPackType for substituted argument packs of template template and non-type template parameters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123448 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-14Start implementing support for substitution into pack expansions thatDouglas Gregor
involve template parameter packs at multiple template levels that occur within the signatures members of class templates (and partial specializations thereof). This is a work-in-progress that is deficient in several ways, notably: - It only works for template type parameter packs, but we need to also support non-type template parameter packs and template template parameter packs. - It doesn't keep track of the lengths of the substituted argument packs in the expansion, so it can't properly diagnose length mismatches. However, this is a concrete step in the right direction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123425 91177308-0d34-0410-b5e6-96231b3b80d8
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