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2012-07-11Stop instantiating a class if we hit a static_assert failure. Also, if theRichard Smith
static_assert fails when parsing the template, don't diagnose it again on every instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160088 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11Introduce a flag in SourceManager to treat non-system source filesArgyrios Kyrtzidis
as "volatile", meaning there's a high enough chance that they may change while we are trying to use them. This flag is only enabled by libclang. Currently "volatile" source files will be stat'ed immediately before opening them, because the file size stat info may not be accurate since when we got it (e.g. from the PCH). This avoids crashes when trying to reference mmap'ed memory from a file whose size is not what we expect. Note that there's still a window for a racing issue to occur but the window for it should be way smaller than before. We can consider later on to avoid mmap completely on such files. rdar://11612916 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160074 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-09Silence unused variable warning in -Asserts buildMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159954 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-09Inline storage of attributes in AttributedStmt.Alexander Kornienko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159925 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Don't store pointers into a std::vector (RawCommentList::Comments). AlthoughDmitri Gribenko
currently we take address of std::vector's contents only after we finished adding all comments (so no reallocation can happen), this will change in future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159845 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Implement AST classes for comments, a real parser for Doxygen comments and aDmitri Gribenko
very simple semantic analysis that just builds the AST; minor changes for lexer to pick up source locations I didn't think about before. Comments AST is modelled along the ideas of HTML AST: block and inline content. * Block content is a paragraph or a command that has a paragraph as an argument or verbatim command. * Inline content is placed within some block. Inline content includes plain text, inline commands and HTML as tag soup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159790 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-04Drop the ASTContext.h include from DeclFriend.h and DeclTemplate.h.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[PCH] Make sure that all newly introduced visible decls in a DeclContextArgyrios Kyrtzidis
coming from an AST file are registered for serialization. A static data member instantiation of in a chained PCH could be missed when serializing decls; the result was that when emitting the visible decls map of its DeclContext, we would use a DeclID that was not actually emitted, leading to crashes or hangs. Fix this by making sure such decls are always registered for serialization. Also introduce extra sanity checks to make sure we don't register new declarations or types after we have serialized the types/decls block. rdar://11728990 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159550 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-01PR13189: va_list broken with precompiled headersMeador Inge
For some targets a structure named __va_list_tag is built to help define the __builtin_va_list type. However, __va_list_tag was not being treated as a predefined type thus causing problems when serializing the AST. This commit fixes that oversight by adding the necessary support to treat __va_list_tag as a predefined type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159508 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-21Remove a goofy CMake hack and use the standard CMake facilities toChandler Carruth
express library-level dependencies within Clang. This is no more verbose really, and plays nicer with the rest of the CMake facilities. It should also have no change in functionality. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158888 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-20Fix a warning on a fully covered switch with a default:Chandler Carruth
../tools/clang/lib/Serialization/ASTReader.cpp:6316:9: warning: default label in switch which covers all enumeration values [-Wcovered-switch-default] Also fix the indentation here to match the coding conventions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158794 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-20Restructure how the driver communicates information about theJohn McCall
target Objective-C runtime down to the frontend: break this down into a single target runtime kind and version, and compute all the relevant information from that. This makes it relatively painless to add support for new runtimes to the compiler. Make the new -cc1 flag, -fobjc-runtime=blah-x.y.z, available at the driver level as a better and more general alternative to -fgnu-runtime and -fnext-runtime. This new concept of an Objective-C runtime also encompasses what we were previously separating out as the "Objective-C ABI", so fragile vs. non-fragile runtimes are now really modelled as different kinds of runtime, paving the way for better overall differentiation. As a sort of special case, continue to accept the -cc1 flag -fobjc-runtime-has-weak, as a sop to PLCompatibilityWeak. I won't go so far as to say "no functionality change", even ignoring the new driver flag, but subtle changes in driver semantics are almost certainly not intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-20Add the PCH file name to the message about not being able to read the PCH.Kaelyn Uhrain
Also add a couple of unit tests to check the invalid-PCH error messages to satisfy PR4568 and for the assertion (introduced in r149918 and fixed in r158769) that would cause clang to crash when given an empty PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158772 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-20Structured comment parsing, first step.Dmitri Gribenko
* Retain comments in the AST * Serialize/deserialize comments * Find comments attached to a certain Decl * Expose raw comment text and SourceRange via libclang git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158771 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Explicitly build __builtin_va_list.Meador Inge
The target specific __builtin_va_list types are now explicitly built instead of injecting strings into the preprocessor input. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158592 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16[AST/libclang] Fix the selector locations that are reported for aArgyrios Kyrtzidis
method definition that has its '{' attached to the method name without a space. With a method like: -(id)meth{ ..... } the logic in ObjCMethodDecl that determined the selector locations got confused because it was initialized based on an end location for '{' but that end location changed to '}' after the method was finished. Fix this by having an immutable end location for the declarator and for getLocEnd() get the end location from the body itself. Fixes rdar://11659739. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158583 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-11Etch out the code path for MS-style inline assembly.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158325 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-10Remove CXXRecordDecl flags which are unused after r158289.Richard Smith
We need an efficient mechanism to determine whether a defaulted default constructor is constexpr, in order to determine whether a class is a literal type, so keep the incrementally-built form on CXXRecordDecl. Remove the on-demand computation of same, so that we only have one method for determining whether a default constructor is constexpr. This doesn't affect correctness, since default constructor lookup is much simpler than selecting a constructor for copying or moving. We don't need a corresponding mechanism for defaulted copy or move constructors, since they can't affect whether a type is a literal type. Conversely, checking whether such functions are constexpr can require non-trivial effort, so we defer such checks until the copy or move constructor is required. Thus we now only compute whether a copy or move constructor is constexpr on demand, and only compute whether a default constructor is constexpr in advance. This is unfortunate, but seems like the best solution. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158290 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-10PR13064: Store whether an in-class initializer uses direct or copyRichard Smith
initialization, and use that information to produce the right kind of initialization during template instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158288 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08Switch LineTableInfo to use FileID instead of int for file references,Douglas Gregor
from Tom Honermann! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158211 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-07Plug a long standing memory leak in TemplateArgument.Benjamin Kramer
The integral APSInt value is now stored in a decomposed form and the backing store for large values is allocated via the ASTContext. This way its not leaked as TemplateArguments are never destructed when they are allocated in the ASTContext. Since the integral data is immutable it is now shared between instances, making copying TemplateArguments a trivial operation. Currently getting the integral data out of a TemplateArgument requires creating a new APSInt object. This is cheap when the value is small but can be expensive if it's not. If this turns out to be an issue a more efficient accessor could be added. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158150 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Revert Decl's iterators back to pointer value_type rather than reference ↵David Blaikie
value_type In addition, I've made the pointer and reference typedef 'void' rather than T* just so they can't get misused. I would've omitted them entirely but std::distance likes them to be there even if it doesn't use them. This rolls back r155808 and r155869. Review by Doug Gregor incorporating feedback from Chandler Carruth. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158104 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Remove unused private member variables found by clang's new ↵Benjamin Kramer
-Wunused-private-field. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158086 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-28Address minor FIXME in RedeclLink to contain a PointerIntPair instead of ↵David Blaikie
derive from it. Use actual factory functions rather than derived classes acting as named constructors/factories. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157588 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16Fix ASTReader handling of ImportDecls, from Meador Inge!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156923 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16[libclang/AST] Index references of protocols in "@protocol(...)" syntax.Argyrios Kyrtzidis
To do that, keep track of the location of the protocol id in the ObjCProtocolExpr AST node. rdar://11190837 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156890 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-09[AST/libclang] Speed up clang_getOverriddenCursors() considerably by ↵Argyrios Kyrtzidis
reserving a bit in ObjCMethodDecl to indicate whether the method does not override any other method, which is the majority of cases. That way we can avoid unnecessary work doing lookups, especially when PCH is involved. rdar://11360082 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156476 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-07A union can have a constexpr defaulted default constructor, if it has anRichard Smith
in-class initializer for one of its fields. Value-initialization of such a type should use the in-class initializer! The former was just a bug, the latter is a (reported) standard defect. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156274 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04[PCH] Use DenseMap instead of std::map to keep track of SwitchCases.Argyrios Kyrtzidis
Part of rdar://11353109. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156185 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04[PCH] Really, pinky swear, fix for PR12689Argyrios Kyrtzidis
rdar://11353109 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156145 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03Fix non-deterministic iteration order when walking the specializationsChandler Carruth
of templates by using the newly introduce FoldingSetVector. This preserves insertion order for all iteration of specializations. I've also included a somewhat terrifying testcase that rapidly builds up a large number of functions. This is enough that any system with ASLR will have non-deterministic debug information generated for the test case without the fix here as the debug information is generated in part by walking these specializations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156133 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03[PCH] When validating that the files coming from PCH did not change, alsoArgyrios Kyrtzidis
validate that we didn't override the contents of any of such files. If this is detected, emit a diagnostic error and recover gracefully by using the contents of the original file that the PCH was built from. Part of rdar://11305263 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156107 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03[PCH] Clear switch case IDs when deserializing a objc method body.Argyrios Kyrtzidis
Fixes rdar://11353109 & http://llvm.org/bugs/show_bug.cgi?id=12689 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156056 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-30Store the source range of a CXXOperatorCallExpr in the Expr object instead ofArgyrios Kyrtzidis
calculating it recursively. boost::assign::tuple_list_of uses the trick of chaining call operator expressions in order to declare a "list of tuples", e.g: std::vector<tuple> v = boost::assign::tuple_list_of(1, "foo")(2, "bar")(3, "qqq"); Due to CXXOperatorCallExpr calculating its source range recursively we would get significant slowdowns with a large number of chained call operator expressions and the potential for stack overflow. rdar://11350116 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155848 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-30Remove the ref/value inconsistency in filter_decl_iterator.David Blaikie
filter_decl_iterator had a weird mismatch where both op* and op-> returned T* making it difficult to generalize this filtering behavior into a reusable library of any kind. This change errs on the side of value, making op-> return T* and op* return T&. (reviewed by Richard Smith) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155808 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-26[PCH] In ASTReader::completeVisibleDeclsMap, after we loaded all visible ↵Argyrios Kyrtzidis
decls, mark the declaration context as not having external visible storage any more. This should improve performance as we won't needlessly reload the visible decls multiple times and seems to fix the i386 crash in rdar://11327522. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155649 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-21Fix serialization of uninstantiated exception specifications. Patch by Li Kan,Richard Smith
test by me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155289 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Implements boxed expressions for Objective-C. <rdar://problem/10194391>Patrick Beard
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155082 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Implement the all_lookups_iterator for PCH as a follow-up to r153970. ThisNick Lewycky
includes a patch from Matthias Kleine with a regression testcase! Adds a new iterator 'data_iterator' to OnDiskHashTable which doesn't try to reconstruct the external_key from the internal_key, which is useful for traits that don't store enough information to do that mapping in their key. Also deletes the 'item_iterator' from OnDiskHashTable as dead code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154784 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-15Use forward declarations for ASTDeclContextNameLookupTable and add a missing ↵Benjamin Kramer
delete. It would be nice to use OwningPtr here, but DeclContextInfo is stored in a DenseMap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154763 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-14Add an AttributedStmt type to represent a statement with C++11 attributesRichard Smith
attached. Since we do not support any attributes which appertain to a statement (yet), testing of this is necessarily quite minimal. Patch by Alexander Kornienko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Serialize and deserialize some missing bits from BlockDecl.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154676 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10AtomicExpr: make ASTStmtReader a friend and remove setters. Also fix savingRichard Smith
of an uninitialized Stmt* in serialization of __atomic_init and add a test of atomics serialization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154448 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Remove dead assignment to local variable.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153985 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Eliminate obvious use-after-free. Fixes PR12433 / <rdar://problem/11168333>.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153982 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Add info to ObjCPropertyRefExpr to indicate whether the dot syntax propertyArgyrios Kyrtzidis
reference is going to message the setter, the getter, or both. Having this info on the ObjCPropertyRefExpr node makes it easier for AST clients (like libclang) to reason about the meaning of the property reference. [AST/Sema] -Use 2 bits (with a PointerIntPair) in ObjCPropertyRefExpr to record the above info -Have ObjCPropertyOpBuilder set the info appropriately. [libclang] -When there is an implicit property reference (property syntax using methods) have clang_getCursorReferenced return a cursor for the method. If the property reference is going to result in messaging both the getter and the setter choose to return a cursor for the setter because it is less obvious from source inspection that the setter is getting called. The general idea has the seal of approval by John. rdar://11151621 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153709 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26Canonicalize the declaration we write to a PCH file for anDouglas Gregor
InjectedClassNameType; otherwise, it won't be properly wired to the original (canonical) declaration when it is deserialized. Fixes <rdar://problem/11112464>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153442 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-22[PCH] When we are replacing a decl in a chained PCH that is also a DeclContext,Argyrios Kyrtzidis
make sure to fully load its external lexical and visible declarations before re-writing it. rdar://10914192 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153254 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-16Fix Objective-C compilation-time performance regression introduced in r152608.Richard Smith
Reintroduce lazy name lookup table building, ensuring that the lazy building step produces the same lookup table that would be built by the eager step. Avoid building a lookup table for the translation unit outside C++, even in cases where we can't recover the contents of the table from the declaration chain on the translation unit, since we're not going to perform qualified lookup into it anyway. Continue to support lazily building such lookup tables for now, though, since ASTMerge uses them. In my tests, this performs very similarly to ToT with r152608 backed out, for C, Obj-C and C++, and does not suffer from PR10447. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152905 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-14Instantiating a class template should not instantiate the definition of anyRichard Smith
scoped enumeration members. Later uses of an enumeration temploid as a nested name specifier should cause its instantiation. Plus some groundwork for explicit specialization of member enumerations of class templates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152750 91177308-0d34-0410-b5e6-96231b3b80d8
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