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path: root/Lex/Lexer.cpp
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2008-03-15Make a major restructuring of the clang tree: introduce a top-levelChris Lattner
lib dir and move all the libraries into it. This follows the main llvm tree, and allows the libraries to be built in parallel. The top level now enforces that all the libs are built before Driver, but we don't care what order the libs are built in. This speeds up parallel builds, particularly incremental ones. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48402 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-24Fix PR2090, a typo in digraph processing.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47540 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-03simplify the lexer a bit, pulling stuff out of the default case.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45540 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Don't attribute in file headers anymore. See llvmdev for theChris Lattner
discussion of this change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45410 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-13add a helper method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44976 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-30start partitioning the diagnostics into two classes: thoseChris Lattner
that are builtin and those that are aren't. This is a bunch of API refactoring that will make this possible, but there is no functionality change yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44473 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-18Silenced a couple of VC++ warnings.Hartmut Kaiser
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43125 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-17Move token length calculation out of the diagnostics machinery into Chris Lattner
the lexer, where it can be shared. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43090 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-17Add a new type of lexer: a raw lexer, which does not require a preprocessorChris Lattner
object in order to do its thing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43084 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-09Make a significant change to invert the control flow handlingChris Lattner
predefined macros. Previously, these were handled by the driver, now they are handled by the preprocessor. Some fallout of this: 1. Instead of preprocessing two buffers (the predefines, then the main source file) we now start preprocessing the main source file and inject the predefines as a "psuedo #include" from the main source file. 2. #1 allows us to nuke the Lexer::IsMainFile flag and simplify Preprocessor::isInPrimaryFile. 3. The driver doesn't have to know about standard #defines, the preprocessor knows, which is nice for people wanting to define their own drivers. 4. This allows us to put normal tokens in the predefine buffer, for example a definition for __builtin_va_list that is target-specific, and a typedef for id in objc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42818 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-09Switch lexer/pp over to new Token::is/isNot apiChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42799 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-07implement the Token class in the Lexer.cpp file instead of IdentifierInfo.cppChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42728 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-03Eliminate some VC++ warnings, patch by Hartmut Kaiser!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41685 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-24Use a smallstring instead of an std::string in FileChanged to avoid some ↵Chris Lattner
malloc traffic. This speeds up -E on xalancbmk by 2.4% git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40461 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-22Change hte lexer to start a start pointer to the underlying Chris Lattner
memorybuffer instead of a pointer to the memorybuffer itself. This reduces coupling and eliminates a pointer dereference on a hot path. This speeds up -Eonly on 483.xalancbmk by 2.1% git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40394 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-22split the slow path out of Lexer::getSourceLocation and do not let theChris Lattner
compiler inline it. This speeds up -Eonly on 483.xalancbmk by about 1% git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40393 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-22avoid recursion between SkipBCPLComment and SkipWhitespace. In cases like this:Chris Lattner
// foo // bar // baz we'd get two levels of call (bcpl & whitespace) for each line, leading to some seriously deep stacks in some cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40384 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-21Fix a lexer bug where we incorrectly rejectedChris Lattner
int i = /*/ */ 1; Thanks to Neil for pointing this out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40379 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20At one point there were going to be lexer and parser tokens.Chris Lattner
Since that point is now long gone, we should rename LexerToken to Token, as it is the only kind of token we have. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40105 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20simplify the lexer ctor to take a SLoc instead of a sloc and a redundant ↵Chris Lattner
buffer*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40104 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20Reimplement SourceLocation. Instead of having a Chris Lattner
fileid/offset pair, it now contains a bit discriminating between mapped locations and file locations. This separates the tables for macros and files in SourceManager, and allows better separation of concepts in the rest of the compiler. This allows us to have *many* macro instantiations before running out of 'addressing space'. This is also more efficient, because testing whether something is a macro expansion is now a bit test instead of a table lookup (which also used to require having a srcmgr around, now it doesn't). This is fully functional, but there are several refinements and optimizations left. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40103 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-11Stage two of getting CFE top correct.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39734 91177308-0d34-0410-b5e6-96231b3b80d8
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