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2013-01-21When loading an identifier from an AST file solely for the purpose ofDouglas Gregor
forming the identifier, e.g., as part of a selector or a declaration name, don't actually deserialize any information about the identifier. Instead, simply mark it "out-of-date" and we'll load the the information on demand. 2% speedup on the modules testcase I'm looking at; should also help PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173056 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-21Introduce a fast path for the ASTReader's name lookup within aDouglas Gregor
DeclContext. When the DeclContext is of a kind that can only be defined once and never updated, we limit the search to the module file that conatins the lookup table. Provides a 15% speedup in one modules-heavy source file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173050 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20Implement OpenCL event_t as Clang builtin type, including event_t related ↵Guy Benyei
OpenCL restrictions (OpenCL 1.2 spec 6.9) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172973 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20convert some more stuff over to use new cursor APIs.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172932 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-19[PCH/Modules] Revert r172843, it caused a module to fail building.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172884 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18[PCH/Modules] Re-apply r172620 and r172629, now with 100% less infinite loops!Argyrios Kyrtzidis
Makes sure that a deserialized macro is only added to the preprocessor macro definitions only once. Unfortunately I couldn't get a reduced test case. rdar://13016031 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172843 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18Revert Clang r172620 and r172629, which caused a hang when buildingDouglas Gregor
complicated modules (<rdar://problem/13038265>). Unfortunately, this un-fixes <rdar://problem/13016031>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172783 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16[PCH/Modules] Change how macro [re]definitions are de/serialized.Argyrios Kyrtzidis
Previously we would serialize the macro redefinitions as a list, part of the identifier, and try to chain them together across modules individually without having the info that they were already chained at definition time. Change this by serializing the macro redefinition chain and then try to synthesize the chain parts across modules. This allows us to correctly pinpoint when 2 different definitions are ambiguous because they came from unrelated modules. Fixes bogus "ambiguous expansion of macro" warning when a macro in a PCH is redefined without undef'ing it first. rdar://13016031 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172620 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Implement parsing, AST, (de-)serialization, and placeholder globalDouglas Gregor
metadata for linking against the libraries/frameworks for imported modules. The module map language is extended with a new "link" directive that specifies what library or framework to link against when a module is imported, e.g., link "clangAST" or link framework "MyFramework" Importing the corresponding module (or any of its submodules) will eventually link against the named library/framework. For now, I've added some placeholder global metadata that encodes the imported libraries/frameworks, so that we can test that this information gets through to the IR. The format of the data is still under discussion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172437 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Remove useless 'llvm::' qualifier from names like StringRef and others that areDmitri Gribenko
brought into 'clang' namespace by clang/Basic/LLVM.h git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172323 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Add missing includes and forward declarations so that headers don't depend onDmitri Gribenko
other headers included before them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172320 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Provide Decl::getOwningModule(), which determines the (sub)module inDouglas Gregor
which a particular declaration resides. Use this information to customize the "definition of 'blah' must be imported from another module" diagnostic with the module the user actually has to import. Additionally, recover by importing that module, so we don't complain about other names in that module. Still TODO: coming up with decent Fix-Its for these cases, and expand this recovery approach for other name lookup failures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172290 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10Truth in advertising: LocallyScopedExternalDecls actually only containsRichard Smith
external declarations with C language linkage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172150 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-18Re-commit r170428 changes with Linux style file endings.Guy Benyei
Add OpenCL images as clang builtin types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170432 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-18Revert changes from r170428, as I accidentally changed the line endings of ↵Guy Benyei
these files to Windows style. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170431 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-18Add OpenCL images as clang builtin types.Guy Benyei
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170428 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[PCH] Make the new PCH format (control block) backwards compatible andArgyrios Kyrtzidis
don't crash when loading a PCH with the older format. The introduction of the control block broke compatibility with PCHs from older versions. This patch allows loading (and rejecting) PCHs from an older version and allows newer PCHs to be rejected from older clang versions as well. rdar://12821386 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170150 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort #include lines for all files under include/...Chandler Carruth
This is a simpler sort, entirely automatic with the help of llvm/utils/sort_includes.py -- no manual edits here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169238 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30When we're emitting a diagnostic with a source location in an importedDouglas Gregor
module, provide a module import stack similar to what we would get for an include stack, e.g., In module 'DependsOnModule' imported from build-fail-notes.m:4: In module 'Module' imported from DependsOnModule.framework/Headers/DependsOnModule.h:1: Inputs/Module.framework/Headers/Module.h:15:12: note: previous definition is here @interface Module <rdar://problem/12696425> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169042 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Actually keep track of the source locations at which particular moduleDouglas Gregor
files are loaded. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169027 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Introduce ASTUnresolvedSet, an UnresolvedSet-like class, whose contents areArgyrios Kyrtzidis
allocated using the allocator associated with an ASTContext. Use this inside CXXRecordDecl::DefinitionData instead of an UnresolvedSet to avoid a potential memory leak. rdar://12761275 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168771 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15[modules] Use a memory buffer directly as input for the module includes,Argyrios Kyrtzidis
instead of messing with virtual files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168062 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15[modules] Setup the import location of a module file and use itArgyrios Kyrtzidis
as the include location of the main file of an imported module. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168061 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-07When loading a module fails because it is out of date, rebuild thatDouglas Gregor
module in place. <rdar://problem/10138913> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167539 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Tease out the routine that reads the control block of an AST file fromDouglas Gregor
the validation of an AST file against a specific set of options. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167504 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31[PCH] Remove the stat cache from the PCH file.Argyrios Kyrtzidis
The stat cache became essentially useless ever since we started validating all file entries in the PCH. But the motivating reason for removing it now is that it also affected correctness in this situation: -You have a header without include guards (using "#pragma once" or #import) -When creating the PCH: -The same header is referenced in an #include with different filename cases. -In the PCH, of course, we record only one file entry for the header file -But we cache in the PCH file the stat info for both filename cases -Then the source files are updated and the header file is updated in a way that its size and modification time are the same but its inode changes -When using the PCH: -We validate the headers, we check that header file and we create a file entry with its current inode -There's another #include with a filename with different case than the previously created file entry -In order to get its stat info we go through the cached stat info of the PCH and we receive the old inode -because of the different inodes, we think they are different files so we go ahead and include its contents. Removing the stat cache will potentially break clients that are attempting to use the stat cache as a way of avoiding having the actual input files available. If that use case is important, patches are welcome to bring it back in a way that will actually work correctly (i.e., emit a PCH that is self-contained, coping with literal strings, line/column computations, etc.). This fixes rdar://5502805 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167172 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30getOriginalSourceFileName and getOriginalSourceFile can return a StringRef.Rafael Espindola
MaybeAddSystemRootToFilename doesn't need to return anything, it modifies its argument. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166988 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25Remove the old predefines-buffer diffing code completely. It's beenDouglas Gregor
replaced by the more efficient, cleaner preprocessor-option version that occurs earlier in PCH validation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166654 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25The the preprocessor option validator to compute suggestedDouglas Gregor
predefines. We're not quite ready to cut over to these suggested predefines yet, however. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166648 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24Teach the PCH validator to check the preprocessor options, especiallyDouglas Gregor
the macros that are #define'd or #undef'd on the command line. This checking happens much earlier than the current macro-definition checking and is far cleaner, because it does a direct comparison rather than a diff of the predefines buffers. Moreover, it allows us to use the result of this check to skip over PCH files within a directory that have non-matching -D's or -U's on the command line. Finally, it improves the diagnostics a bit for mismatches, fixing <rdar://problem/8612222>. The old predefines-buffer diff'ing will go away in a subsequent commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166641 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24(De-)serialize the preprocessor options, including macros defined,Douglas Gregor
-include'd files, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166614 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24(De-)serialize header search options.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166586 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24(De-)serialize the file system options.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24Serialize DiagnosticOptions to the AST file.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166572 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23If the precompiled header named by "-include" is actually a directory,Douglas Gregor
check each of the files within that directory to determine if any of them is an AST file that matches the language and target options. If so, the first matching AST file is loaded. This fixes a longstanding discrepency with GCC's precompiled header implementation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166469 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22Allow clients of the AST reader to specify what kinds of AST loadDouglas Gregor
failures they know how to tolerate, e.g., out-of-date input files or configuration/version mismatches. Suppress the corresponding diagnostics if the client can handle it. No clients actually use this functionality, yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166449 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22Collapse ASTReader::ReadSLocEntryRecord() into its only caller,Douglas Gregor
ReadSLocEntry(). No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166447 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22Distinguish the various kinds of AST file loading failures:Douglas Gregor
file corruption, compiler version mismatch, target/language configuration mismatch, out-of-date AST file. No functionality change yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166446 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-22Eliminate the redundancy between source-file information in the sourceDouglas Gregor
manager block and input-file information in the control block. The source manager entries now point back into the control block. Input files are now lazily deserialized (if validation is disabled). Reduces Cocoa's PCH by the ~70k I added when I introduced the redundancy in r166251. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166429 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19Move the set of files to be validated in an AST file into the controlDouglas Gregor
block, so the input files are validated early on, before we've committed to loading the AST file. This (accidentally) fixed a but wherein the main file used to generate the AST file would *not* be validated by the existing validation logic. At the moment, this leads to some duplication of filenames between the source manager block and input-file blocks, as well as validation logic. This will be handled via an upcoming patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166251 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Move OriginalDir from ASTReader to ModuleFile.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166233 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Move the "RelocatablePCH" bit from the ASTReader to the module file.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166229 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Move information about the "original file" from the ASTReader into theDouglas Gregor
module files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166228 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Collapse the original file name and original file ID records into aDouglas Gregor
single record. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166206 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Collapse the "version control revision/tag" AST file record into theDouglas Gregor
metadata record, which already had other version information. Clean up the block info block along the way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166204 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Split the target options out into their own record within the ASTDouglas Gregor
file's control block. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166195 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Start factoring the on-disk records for an AST file into a controlDouglas Gregor
block, which stores information about how the AST file to generated, from the AST block, which stores the actual serialized AST. The information in the control block should be enough to determine whether the AST file is up-to-date and compatible with the current translation unit, and reading it should not cause any side effects that aren't easy to undo. That way, we can back out from an attempt to read an incompatible or out-of-date AST file. Note that there is still more factoring to do. In particular, information about the source files used to generate the AST file (along with their time stamps, sizes, etc.) still resides in the source manager block. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166166 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Serialize TargetOptions into an AST file, and make sure that we keepDouglas Gregor
target options around so they can be accessed at any point (rather than keeping them transient). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166072 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Introduce the notion of excluded headers into the module mapDouglas Gregor
description. Previously, one could emulate this behavior by placing the header in an always-unavailable submodule, but Argyrios guilted me into expressing this idea properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165921 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-12Track which particular submodule #undef's a macro, so that the actualDouglas Gregor
#undef only occurs if that submodule is imported. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165773 91177308-0d34-0410-b5e6-96231b3b80d8
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