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2009-01-23Support arithmetic on pointer-to-function types as a GNUDouglas Gregor
extension. Addresses clang PR/3371. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62823 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22Use NonFragileABI as name of new Next abi. More comments Fariborz Jahanian
for the new meta-data. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62806 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22EXTWARNify the warning about unnamed typedefs of enumsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62766 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22Initial implementation of semantic analysis and ASTs for C99Douglas Gregor
designated initializers. This implementation should cover all of the constraints in C99 6.7.8, including long, complex designations and computing the size of incomplete array types initialized with a designated initializer. Please see the new test-case and holler if you find cases where this doesn't work. There are still some wrinkles with GNU's anonymous structs and anonymous unions (it isn't clear how these should work; we'll just follow GCC's lead) and with designated initializers for the members of a union. I'll tackle those very soon. CodeGen is still nonexistent, and there's some leftover code in the parser's representation of designators that I'll also need to clean up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62737 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-21Refactoring ObjC Next's runtime classes in preparation forFariborz Jahanian
the new ObjC's abi. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62721 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-21Add a bit to IdentifierInfo that acts as a simple predicate whichChris Lattner
tells us whether Preprocessor::HandleIdentifier needs to be called. Because this method is only rarely needed, this saves a call and a bunch of random checks. This drops the time in HandleIdentifier from 3.52ms to .98ms on cocoa.h on my machine. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62675 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-20Fix: <rdar://problem/6510344> [pth] PTH slows down regular lexer ↵Ted Kremenek
considerably (when it has substantial work) Changes to IdentifierTable: - High-level summary: StringMap never owns IdentifierInfos. It just references them. - The string map now has StringMapEntry<IdentifierInfo*> instead of StringMapEntry<IdentifierInfo>. The IdentifierInfo object is allocated using the same bump pointer allocator as used by the StringMap. Changes to IdentifierInfo: - Added an extra pointer to point to the StringMapEntry<IdentifierInfo*> in the string map. This pointer will be null if the IdentifierInfo* is *only* used by the PTHLexer (that is it isn't in the StringMap). Algorithmic changes: - Non-PTH case: IdentifierInfo::get() will always consult the StringMap first to see if we have an IdentifierInfo object. If that StringMapEntry references a null pointer, we allocate a new one from the BumpPtrAllocator and update the reference in the StringMapEntry. - PTH case: We do the same lookup as with the non-PTH case, but if we don't get a hit in the StringMap we do a secondary lookup in the PTHManager for the IdentifierInfo. If we don't find an IdentifierInfo we create a new one as in the non-PTH case. If we do find and IdentifierInfo in the PTHManager, we update the StringMapEntry to refer to it so that the IdentifierInfo will be found on the next StringMap lookup. This way we only do a binary search in the PTH file at most once for a given IdentifierInfo. This greatly speeds things up for source files containing a non-trivial amount of code. Performance impact: While these changes do add some extra indirection in IdentifierTable to access an IdentifierInfo*, I saw speedups even in the non-PTH case as well. Non-PTH: For -fsyntax-only on Cocoa.h, we see a 6% speedup. PTH (with Cocoa.h in token cache): 11% speedup. I also did an experiment where we did -fsyntax-only on a source file including a large header and Cocoa.h, but the token cache did not contain the larger header. For this file, we were seeing a performance *regression* when using PTH of 3% over non-PTH. Now we are seeing a performance improvement of 9%! Tests: The serialization tests are now failing. I looked at this extensively, and I my belief is that this change is unmasking a bug rather than introducing a new one. I have disabled the serialization tests for now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62636 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-20Improvements to Sema of asm statements. Fixes <rdar://problem/6156893>Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62609 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19Centralize error reporting of improper uses of incomplete types in theDouglas Gregor
new DiagnoseIncompleteType. It provides additional information about struct/class/union/enum types when possible, either by pointing to the forward declaration of that type or by pointing to the definition (if we're in the process of defining that type). Fixes <rdar://problem/6500531>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62521 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19rearrange SourceManager methods to group them by kind. Remove theChris Lattner
SourceManager::getFileCharacteristic(FileID) method: we need a full location to know if it is a system header etc in the future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62503 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19Rename SourceManager::getCanonicalFileID -> getFileID. There isChris Lattner
no longer such thing as a non-canonical FileID. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62499 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19remove the public SourceManager::getContentCacheForLoc method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62497 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19remove the SourceManager:: and FullSourceLoc::getFileEntryForLoc methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62496 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19SourceManager::getBufferData(SourceLocation) is dead, delete it.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62495 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19some minor cleanups to SourceManager, and eliminate the Chris Lattner
SourceManager::getBuffer(SourceLocation) method. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19privatize getChunkID/getMacroID, and move operator< out of the class.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62493 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19Make some enums in SourceLocation private, remove a useless assertion from ↵Chris Lattner
ScratchBuffer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62492 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19make a bunch of more SourceLocation methods private.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62491 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19Make SourceLocation::getFileLoc private to reduce the API exposure of Chris Lattner
SourceLocation. This requires making some cleanups to token pasting and _Pragma expansion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62490 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-18Add sema support for symbolic names in inline asm statements.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62441 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-18Remove outdated diagnostic. Tests are coming.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Allow targets to override IntMaxTWidthNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62434 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Change TargetInfo::validateInputConstraint to take begin/end name iterators ↵Anders Carlsson
instead of the number of outputs. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62433 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Diagnose that property name cannot be a bitfieldFariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62432 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Diagnose when method parameter is an object.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62431 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Rename SourceLocation::getFileID to getChunkID, because it returnsChris Lattner
the chunk ID not the file ID. This exposes problems in TextDiagnosticPrinter where it should have been using the canonical file ID but wasn't. Fix these along the way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62427 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17this massive patch introduces a simple new abstraction: it makesChris Lattner
"FileID" a concept that is now enforced by the compiler's type checker instead of yet-another-random-unsigned floating around. This is an important distinction from the "FileID" currently tracked by SourceLocation. *That* FileID may refer to the start of a file or to a chunk within it. The new FileID *only* refers to the file (and its #include stack and eventually #line data), it cannot refer to a chunk. FileID is a completely opaque datatype to all clients, only SourceManager is allowed to poke and prod it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62407 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17make "ContentCache::Buffer" mutable to avoid a const_cast.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62403 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Instead of iterating over FileID's, have PTH generation iterate over theChris Lattner
content cache directly. Content cache has a 1-1 mapping with fileentries, whereas multiple FileIDs can be the same FileEntry. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62401 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Warn about typedefs of enums without any declarator name. Fixes ↵Douglas Gregor
rdar://problem/6503878 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62397 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Teach DeclContext how to find the primary declaration for any TagDeclDouglas Gregor
even when we are still defining the TagDecl. This is required so that qualified name lookup of a class name within its definition works (see the new bits in test/SemaCXX/qualified-id-lookup.cpp). As part of this, move the nested redefinition checking code into ActOnTag. This gives us diagnostics earlier (when we try to perform the nested redefinition, rather than when we try to complete the 2nd definition) and removes some code duplication. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62386 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16eliminate FullSourceLoc::getLocation() now that FullSourceLocChris Lattner
*is* the location. This eliminates some weird X.getLocation().getLocation()'s. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Make FullSourceLoc derive from SourceLocation instead of Chris Lattner
containing one. Containment is generally better than derivation, but in this case FullSourceLoc really 'isa' SourceLocation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62375 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16elimiante FullSourceLoc::getCanonicalFileIDChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62374 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16remove FullSourceLoc::isFileIDChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62371 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Implement basic support for parsing #pragma comment, a microsoft extensionChris Lattner
documented here: http://msdn.microsoft.com/en-us/library/7f0aews7(VS.80).aspx This is according to my understanding reading the docs, I don't know if it really agrees fully with what VC++ allows. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62317 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16more SourceLocation lexicon change: instead of referring to theChris Lattner
"logical" location, refer to the "instantiation" location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62316 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16rename "virtual location" of a macro to "instantiation location".Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62315 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Change some terminology in SourceLocation: instead of referring to Chris Lattner
the "physical" location of tokens, refer to the "spelling" location. This is more concrete and useful, tokens aren't really physical objects! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62309 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Improve diagnostics for ambiguous name lookup resultsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62287 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15IdentifierInfo:Ted Kremenek
- IdentifierInfo can now (optionally) have its string data not be co-located with itself. This is for use with PTH. This aspect is a little gross, as getName() and getLength() now make assumptions about a possible alternate representation of IdentifierInfo. Perhaps we should make IdentifierInfo have virtual methods? IdentifierTable: - Added class "IdentifierInfoLookup" that can be used by IdentifierTable to perform "string -> IdentifierInfo" lookups using an auxilliary data structure. This is used by PTH. - Perform tests show that IdentifierTable::get() does not slow down because of the extra check for the IdentiferInfoLookup object (the regular StringMap lookup does enough work to mitigate the impact of an extra null pointer check). - The upshot is that now that some IdentifierInfo objects might be owned by the IdentiferInfoLookup object. This should be reviewed. PTH: - Modified PTHManager::GetIdentifierInfo to *not* insert entries in IdentifierTable's string map, and instead create IdentifierInfo objects on the fly when mapping from persistent IDs to IdentifierInfos. This saves a ton of work with string copies, hashing, and StringMap lookup and resizing. This change was motivated because when processing source files in the PTH cache we don't need to do any string -> IdentifierInfo lookups. - PTHManager now subclasses IdentifierInfoLookup, allowing clients of IdentifierTable to transparently use IdentifierInfo objects managed by the PTH file. PTHManager resolves "string -> IdentifierInfo" queries by doing a binary search over a sorted table of identifier strings in the PTH file (the exact algorithm we use can be changed as needed). These changes lead to the following performance changes when using PTH on Cocoa.h: - fsyntax-only: 10% performance improvement - Eonly: 30% performance improvement git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15PR2746: Implement GCC cast to union extensionSeo Sanghyeon
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62255 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15Initial implementation of member name lookupDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-14Introduce support for C++0x explicit conversion operators (N2437)Douglas Gregor
Small cleanup in the handling of user-defined conversions. Also, implement an optimization when constructing a call. We avoid recomputing implicit conversion sequences and instead use those conversion sequences that we computed as part of overload resolution. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62231 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-13Implemenent objective-c's NSObject attribute as a way of ddeclaraing c-typeFariborz Jahanian
objects as an objective-c object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62197 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-13Permitting typedefs without a name is a Microsoft/GNU extensionDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62192 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-13Warn when someone tries to pass a variable with a non-POD type to a varargs ↵Anders Carlsson
function/method/block. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62148 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-12Implement support for anonymous structs and unions in C. Both C andDouglas Gregor
C++ handle anonymous structs/unions in the same way. Addresses several bugs: <rdar://problem/6259534> <rdar://problem/6481130> <rdar://problem/6483159> The test case in PR clang/1750 now passes with -fsyntax-only, but CodeGen for inline assembler still fails. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62112 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09When we see a reference to a struct, class, or union like "struct X"Douglas Gregor
that is neither a definition nor a forward declaration and where X has not yet been declared as a tag, introduce a declaration into the appropriate scope (which is likely *not* to be the current scope). The rules for the placement of the declaration differ slightly in C and C++, so we implement both and test the various corner cases. This implementation isn't 100% correct due to some lingering issues with the function prototype scope (for a function parameter list) not being the same scope as the scope of the function definition. Testcase is FIXME'd; this probably isn't an important issue. Addresses <rdar://problem/6484805>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62014 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09Very basic support for pure virtual functions.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62003 91177308-0d34-0410-b5e6-96231b3b80d8
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