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2010-08-05Support #pragma weak for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110323 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Give clang_codeCompleteAt() an "options" parameter, and add a newDouglas Gregor
flags enumeration + default-generating function that allows code-completion to be customized via the libclang API. Plus, turn on spell-checking when performing code completion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110319 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Bring stats for the method pool back.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110247 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Implement per-file reading of the selector table. This disables statistics ↵Sebastian Redl
about method pool hits for the moment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110245 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04When chaining, only write interesting selectors to the PCH.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Store the IDs of selectors in the PCH file explicitly.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110219 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Add code-completion support directly to ASTUnit, which performs codeDouglas Gregor
completion within the translation unit using the same command-line arguments for parsing the translation unit. Eventually, we'll reuse the precompiled preamble to improve code-completion performance, and this also gives us a place to cache results. Expose this function via the new libclang function clang_codeCompleteAt(), which performs the code completion within a CXTranslationUnit. The completion occurs in-process (clang_codeCompletion() runs code completion out-of-process). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110210 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04When we try (but fail) to build a precompiled preamble, wait for aDouglas Gregor
short "cooling off" period (defaulting to 5 reparses) before trying to build a precompiled preamble again. Previously, if we failed to build the precompiled preamble at any time, we just gave up the whole charade any never tried again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110187 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Incomplete promotion of selector info to per-file data.Sebastian Redl
Store all selectors in the selector hash table instead of only those from the method pool. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110158 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03When using a precompiled preamble, keep track of the top-levelDouglas Gregor
declarations that we saw when creating the precompiled preamble, and provide those declarations in addition to the declarations parsed in the main source file when traversing top-level declarations. This makes the use of precompiled preambles a pure optimization, rather than changing the semantics of the parsed translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110131 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Apart from storing/retrieving the previous redeclaration from PCH, also ↵Argyrios Kyrtzidis
store/retrieve the most recent redeclaration. That way we are sure that the full redeclarations chain is loaded. When using chained PCHs, first declarations point to the most recent redeclarations in the same PCH. To address this use a REDECLS_UPDATE_LATEST record block to keep track of which first declarations need to point to a most recent redeclaration in another PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110125 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Reshuffle the PCH generator action and consumer, so that we can re-useDouglas Gregor
it while generating precompiled preambles. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Add -cc1 option '-unoptimized-cfg' to toggle using a CFG (for static ↵Ted Kremenek
analysis) that doesn't prune CFG edges. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110087 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02When using a precompiled preamble, save the diagnostics produced whenDouglas Gregor
creating the preamble and "replay" them when reusing the preamble. Also, fix a thinko in the copying of the preamble when building the precompiled preamble. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Query only the latest version of an identifier in the PCH chain. Make sure ↵Sebastian Redl
this version holds the entire declaration chain. This is a much saner solution than trying to merge the info from all elements, and makes redeclarations work properly. Expand the declarations test case to cover more compliated cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110052 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Frontend: Change PluginASTAction::ParseArgs to take a CompilerInstance objectDaniel Dunbar
for use in reporting diagnostics. - We don't want to use the Action's own CompilerInstance, because that is only initialized during file processing and I like that invariant. Also, if ParseArgs returns false then abandon execution. Also, remove unused PluginASTAction::PrintHelp virtual method. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110039 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Read/write in PCH Sema's StdNamespace and StdBadAlloc and use a LazyDeclPtr ↵Argyrios Kyrtzidis
for them that will deserialize them when needed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-31Implement dependency analysis for the precompiled preamble. If any ofDouglas Gregor
the files in the precompiled preamble have changed since it was build, force the preamble to be rebuilt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109937 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30Add some timers to ASTUnit that are only enabled when the LIBCLANG_TIMING ↵Douglas Gregor
environment variable is set. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109890 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30Refactor the way PCHReader tracks whether we are in recursive loading.Argyrios Kyrtzidis
-Replace CurrentlyLoadingTypeOrDecl with a counting scheme (NumCurrentElementsDeserializing) -Provide outside access to the mechanism by adding methods StartedDeserializing/FinishedDeserializing to ExternalASTSource. These are preparation for the next commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109856 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30Make macro weirdness in chained PCH work. This required changing the way ↵Sebastian Redl
PCHReader and PCHWriter are initialized to correctly pick up all initializer. On the upside, this means that there is far less repetition in the dependent PCH now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109823 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Update the list of lexical decls in the TU for chained PCHs. This makes ↵Sebastian Redl
-ast-print show the decls from the dependent PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109524 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Fix use-after-free with precompiled preamblesDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109505 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Implement -fno-validate-pch at the -cc1 level, which suppresses mostDouglas Gregor
of the usual consistency checks used to determine when a precompiled header is incompatible with the translation unit it's being loaded into. Enable this option when loading a precompiled preamble, because the preamble loader will be performing all of this checking itself. Enable the preamble-based test now that it's working. This option is also useful for debugging Clang's PCH (<rdar://problem/7532213>). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109475 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27- Fix recording of offsets of types in dependent PCHs.Sebastian Redl
- Stop reading in (and thus deserializing) every declaration in the TU when creating a dependent PCH. - Switch the storage of a decl context's lexical declarations to a blob containing the IDs instead of a record. This is the only sane way of supporting update records later on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Introduce basic support for loading a precompiled preamble whileDouglas Gregor
reparsing an ASTUnit. When saving a preamble, create a buffer larger than the actual file we're working with but fill everything from the end of the preamble to the end of the file with spaces (so the lexer will quickly skip them). When we load the file, create a buffer of the same size, filling it with the file and then spaces. Then, instruct the lexer to start lexing after the preamble, therefore continuing the parse from the spot where the preamble left off. It's now possible to perform a simple preamble build + parse (+ reparse) with ASTUnit. However, one has to disable a bunch of checking in the PCH reader to do so. That part isn't committed; it will likely be handled with some other kind of flag (e.g., -fno-validate-pch). As part of this, fix some issues with null termination of the memory buffers created for the preamble; we were trying to explicitly NULL-terminate them, even though they were also getting implicitly NULL terminated, leading to excess warnings about NULL characters in source files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109445 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26It's not necessary to call flush() on a raw_ostream immediately priorDan Gohman
to deleting it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109441 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Add source location information to C++ base specifiers.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Eliminate the "minimal" and printing parser actions, which only everDouglas Gregor
worked for C anyway. Also kills the -cc1 options -parse-noop and -parse-print-callbacks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109392 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24Once we've built (or reused) a precompiled preamble, create theDouglas Gregor
appropriately-padded main file buffer (that has spaces in the extra "reserved" space) and thread that buffer through to the parsing function. This still does nothing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109299 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Once we've built a precompiled preamble, keep track of the details ofDouglas Gregor
that preamble (the preamble text, preamble file, reserved main file size). Check these details when we try to rebuild the precompiled preamble, and when nothing has changed, re-use the precompiled preamble. This code is still very much a WIP, and can't even properly be tested because we have no way to use the precompiled preamble yet. "Trust me" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Make declarations in the dependent PCH visible, for C at least.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109292 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23PCH read/write for selector reference pool.Fariborz Jahanian
Finishes off radar 6507158. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109256 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Basic plumbing for generating a precompiled preamble for anDouglas Gregor
ASTUnit/CXTranslationUnit. We can't actually use this preamble yet, however. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109202 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Thread bitstream cursors all the way through the AST reading stuff. This ↵Sebastian Redl
way, reading a trivial 2-element chained file actually works. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109191 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Serialization is implemented, fix comments.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Allow loading declcontext information from any file in the chain. Properly ↵Sebastian Redl
write source locations to dependent files. WIP git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109119 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Support C++ try/catch statements for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109112 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21Allow loading macros from any file in the chain. WIPSebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109048 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21Promote some macro-related stuff to per-file data. Fix a cache-inefficient ↵Sebastian Redl
nested loop by inverting the nesting. Store the size of each file in the chain; will need this later for statement offsets. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109030 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Apparently not every system thinks that references in pairs are as cool as I ↵Sebastian Redl
think. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108959 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Allow loading declarations from any file in the chain. WIPSebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108956 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Allow loading types from any file in the chain. WIPSebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108954 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Allow loading source locations from any file in the chain. WIPSebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20More work on getting PCHReader to handle multiple files. Promote SLocOffsets ↵Sebastian Redl
to per-file data. WIP git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108930 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Introduce a new lexer function to compute the "preamble" of a file,Douglas Gregor
which is the part of the file that contains all of the initial comments, includes, and preprocessor directives that occur before any of the actual code. Added a new -print-preamble cc1 action that is only used for testing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108913 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19Remove PCHReader::getStream(), it was unused. Inline ↵Sebastian Redl
PCHReader::getDelsCursor() into its sole caller and remove it. This reduces the attack surface of multiple PCH files towards code outside the PCH implementation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108763 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19Promote IdentifierOffsets to per-file data.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108762 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19Promote DeclOffsets and TypeOffsets to per-file data.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108760 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19Introduce a new libclang API, clang_reparseTranslationUnit(), whichDouglas Gregor
reparses an already-parsed translation unit. At the moment it's just a convenience function, but we hope to use it for performance optimizations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108756 91177308-0d34-0410-b5e6-96231b3b80d8
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