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2011-04-06Fix getLocForEndOfToken to not double-count spurious internal characters John McCall
within a token, like trigraphs and escaped newlines. Patch by Marcin Kowalczyk! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128978 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-26Add a __has_feature check for the 'availability' attributeDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128337 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25we can now claim to fully support the override control feature in C++0x.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128281 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Lexer: Add extremely limited support for -traditional-cpp, ignoring BCPLDaniel Dunbar
comments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127910 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16Having FileManager::getFile always open the file, brought much consternation ↵Argyrios Kyrtzidis
and leaking of file descriptors. Add 'openFile' bool to FileManager::getFile to specify whether we want to have the file opened or not, have it false by default, and enable it only in HeaderSearch.cpp where the open+fstat optimization matters. Fixes rdar://9139899. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127748 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16Add a 'RawPath' parameter to the PPCallbacks interface. This allowsChandler Carruth
clients to observe the exact path through which an #included file was located. This is very useful when trying to record and replay inclusion operations without it beind influenced by the aggressive caching done inside the FileManager to avoid redundant system calls and filesystem operations. The work to compute and return this is only done in the presence of callbacks, so it should have no effect on normal compilation. Patch by Manuel Klimek. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127742 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15Create __has_feature(cxx_noexcept) and mark it as working.Sebastian Redl
Find out that our C++0x status has only one field for noexcept expression and specification together, and that it was accidentally already marked as fully implemented. This completes noexcept specification work. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127701 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Fix my earlier commit to work with escaped newlines and leave breadcrumbsJohn McCall
in case we want to make a world where we can check intermediate instantiations for this kind of breadcrumb. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127221 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08Add an API call to retrieve the spelling data of a token from its ↵John McCall
SourceLocation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127216 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02Provide an attribute, objc_method_family, to allow the inferred familyJohn McCall
of an Objective-C method to be overridden on a case-by-case basis. This is a higher-level tool than ns_returns_retained &c.; it lets users specify that not only does a method have different retain/release semantics, but that it semantically acts differently than one might assume from its name. This in turn is quite useful to static analysis. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126839 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Rename tok::eom to tok::eod.Peter Collingbourne
The previous name was inaccurate as this token in fact appears at the end of every preprocessing directive, not just macro definitions. No functionality change, except for a diagnostic tweak. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126631 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Reimplement __pragma support using a TokenLexerPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126221 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Make TokenLexer capable of storing preprocessor directive tokensPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126220 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20Turn on __has_feature(cxx_auto_type). The feature is now fully implemented.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126078 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Warn for missing terminating " or ' instead of error for gcc compatibility. ↵Argyrios Kyrtzidis
Fixed rdar://8914293. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125616 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14Move support for "#pragma STDC FP_CONTRACT" to Parser; add Sema actionsPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125474 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14Make LexOnOffSwitch a Preprocessor member functionPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125473 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Add CMake dependencies so that LLVM_USED_LIBS order doesn't matter.Jeffrey Yasskin
I also sorted the tools/driver dependencies since their order no longer matters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125417 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
2011-02-10CMake: LLVM_NO_RTTI must be obsolete now!NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125275 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Lexer: add CUDA kernel call tokensPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125218 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-05Add a __has_feature check for default template arguments in functionDouglas Gregor
templates, a C++0x feature. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124973 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03Add __has_feature() for each of the type traitsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124820 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-31Harden Lexer::GetBeginningOfToken() against bogus source locations andDouglas Gregor
the disappearance/alteration of files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124616 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Wire up attributes 'ns_consumed' and 'cf_consumed' in the static analyzer's ↵Ted Kremenek
ObjC retain/release checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124386 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Hook up attribute ns_consumes_self in the ObjC retain/release checker in the ↵Ted Kremenek
static analyzer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124360 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Add __has_feature(cxx_reference_qualified_functions); update tests andDouglas Gregor
documentation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124322 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Clean up the C++0x __has_feature tests. Specifically:Douglas Gregor
- Don't publicize a C++0x feature through __has_feature if we aren't in C++0x mode (even if the feature is available only with a warning). - "auto" is not implemented well enough for its __has_feature to be turned on. - Fix the test of C++0x __has_feature to actually test what we're trying to test. Searching for the substring "foo" when our options are "foo" and "no_foo" doesn't work :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124291 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Downgrade the error about rvalue references to an extension warningDouglas Gregor
and turn on __has_feature(cxx_rvalue_references). The core rvalue references proposal seems to be fully implemented now, pending lots more testing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19Eradicate any mention of C++0x concepts.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123860 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19Variadic templates are fully implemented.Douglas Gregor
Turn on the __has_feature switch for variadic templates, document their completion, and put the ExtWarn into the c++0x-extensions warning group. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18When redefining a macro don't warn twice if it's not used and don't warn for ↵Argyrios Kyrtzidis
duplicate definition by command line options. Fixes rdar://8875916. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123767 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-15clean up some dead code around __has_include() processing code identified by ↵Chris Lattner
the ted-o-matic. rdar://8867482 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123522 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-11Microsoft integer suffix changes:Francois Pichet
i64 is like LL i32 is like L Also set isMicrosoftInteger to true only if the suffix is well formed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123230 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10Replace all uses of PathV1::exists with PathV2::fs::exists.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123150 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-06fix rdar://8823139, a crash on a comment in a preprocessed .s fileChris Lattner
that contains the ## operator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122946 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-03Fix PR8654, ensuring each branch of an #if, #elif, #else, ... chainChandler Carruth
receives a PPCallback. Patch by Richard Smith. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122755 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23Change all self assignments X=X to (void)X, so that we can turn on aJeffrey Yasskin
new gcc warning that complains on self-assignments and self-initializations. Fix one bug found by the warning, in which one clang::OverloadCandidate constructor failed to initialize its FunctionTemplate member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22Introduced raw_identifier token kind.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122394 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-19Add missing standard includes. Patch by Joerg Sonnenberger!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122194 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17Replace all uses of PathV1::isAbsolute with PathV2::is_{absolute,relative}.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122087 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MemoryBuffer API update.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121956 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15Fix diagnostic pragmas.Argyrios Kyrtzidis
Diagnostic pragmas are broken because we don't keep track of the diagnostic state changes and we only check the current/latest state. Problems manifest if a diagnostic is emitted for a source line that has different diagnostic state than the current state; this can affect a lot of places, like C++ inline methods, template instantiations, the lexer, etc. Fix the issue by having the Diagnostic object keep track of the source location of the pragmas so that it is able to know what is the diagnostic state at any given source location. Fixes rdar://8365684. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121873 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09Don't crash when code-completing after "#include <". It would be farDouglas Gregor
better to actually produce a decent set of completions by checking the system include paths, but not today. Fixes PR8744. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121431 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09Use error_code instead of std::string* for MemoryBuffer.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03Fix diagnostic for reporting bad escape sequence.Ted Kremenek
Patch by Paul Curtis! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120759 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29Merge System into Support.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23change the 'is directory' indicator to be a null-or-notChris Lattner
pointer that is passed down through the APIs, and make FileSystemStatCache::get be the one that filters out directory lookups that hit files. This also paves the way to have stat queries be able to return opened files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120060 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23simplify the cache miss handling code, eliminating CacheMissing.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23rework the stat cache, pulling it out of FileManager.h intoChris Lattner
its own header and giving it some more structure. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120030 91177308-0d34-0410-b5e6-96231b3b80d8
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