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2013-01-28Eliminate memory allocation from most invocations ofDouglas Gregor
ModuleManager::visit() by keeping a free list of the two data structures used to store state (a preallocated stack and a visitation number vector). Improves -fsyntax-only performance for my modules test case by 2.8%. Modules has pulled ahead by almost 10% with the global module index. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173692 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Don't put a function's return type on its own line in Google style.Daniel Jasper
This would be against the style guide: http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Function_Declarations_and_Definitions#Function_Declarations_and_Definitions Not sure what to do as a last resort if the function signature does not fit onto a single line in Google style .. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173690 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Note that SrcMgr::SLocEntry's are POD-like, so SmallVector can do aDouglas Gregor
better job with them. Shaves off 0.7% of -fparse-only time for a modules test case. Sure makes you wonder... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173689 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Print warning instead of error if optional ASan features are enabled w/o ↵Alexey Samsonov
specifying -fsanitize=address git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173670 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Add a -pedantic warning: an anonymous union within an anonymous union is notRichard Smith
permitted in standard C++, despite being silently accepted by many (all?) major C++ implementations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173643 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-27PR15067: Don't assert when a UCN appears in a C90 file.Jordan Rose
Unfortunately, we can't accept the UCN as an extension because we're required to treat it as two tokens for preprocessing purposes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173622 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Added ASTContext methods getIntPtrType and getUIntPtrType.Enea Zaffanella
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173581 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Constify getOptionalExplicitTemplateArgs()Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173575 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Constify some getters of DesignatedInitExprDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173574 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26[libclang] Introduce clang_getFileUniqueID which returns a structArgyrios Kyrtzidis
for a CXFile containing device/inode/modification time. Intended to be useful as a key associated with a unique file across an indexing session. rdar://13091837 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173559 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Give a more informative error message when the dot or arrow operator is usedRichard Trieu
on a type. Currently, it gives a generic "expected unqualified-id" error. The new error message is "cannot use (dot|arrow) operator on a type". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173556 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Highlight various parts of the AST dump with color. Colors are controlled byRichard Trieu
-f(no-)color-diagnostics. In addition, dumpColor() function calls are added to force color printing. No structural changes to -ast-dump. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173548 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26[analyzer] bugreporter::getDerefExpr now takes a Stmt, not an ExplodedNode.Jordan Rose
This allows it to be used in places where the interesting statement doesn't match up with the current node. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173546 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26[analyzer] Add 'prune-paths' config option to disable path pruning.Jordan Rose
This should be used for testing only. Path pruning is still on by default. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173545 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26[analyzer] Rename PruneNullReturnPaths to SuppressNullReturnPaths.Jordan Rose
"Prune" is the term for eliminating pieces of a path that are not relevant to the user. "Suppress" means don't show that path at all. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173544 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Since we're stuck with realpath for the header <-> module mapping,Douglas Gregor
factor the realpath calls into FileManager::getCanonicalName() so we can cache the results of this epically slow operation. 5% speedup on my modules test, and realpath drops out of the profile. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173542 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Comment parsing: actually check for a block command after "\param x"Dmitri Gribenko
This fixes PR15068. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173539 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26Preserve Sema::UndefinedInternals across PCH boundaries. FixesNick Lewycky
-Wundefined-internal warnings with PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173538 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25patch for PR9027 and // rdar://11861085Fariborz Jahanian
Title: [PR9027] volatile struct bug: member is not loaded at -O; This is caused by last flag passed to @llvm.memcpy being false, not honoring that aggregate has at least one 'volatile' data member (even though aggregate itself has not been qualified as 'volatile'. As a result, optimization optimizes away the memcpy altogether. Patch review by John MaCall (I still need to fix up a test though). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173535 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Improve coordination between the module manager and the global moduleDouglas Gregor
index, optimizing the operation that skips lookup in modules where we know the identifier will not be found. This makes the global module index optimization actually useful, providing an 8.5% speedup over modules without the global module index for -fsyntax-only. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173529 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25The standard ARM C++ ABI dictates that inline functions areJohn McCall
never key functions. We did not implement that rule for the iOS ABI, which was driven by what was implemented in gcc-4.2. However, implement it now for other ARM-based platforms. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173515 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25First pass at abstracting out a class for the target C++ ABI.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173514 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Optimize ModuleManager::visit() by precomputing the visitation orderDouglas Gregor
and limiting ourselves to two memory allocations. 10% speedup in -fsyntax-only time for modules. With this change, we can actually see some performance different from the global module index, but it's still about 1%. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173512 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Add space after ';'.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173462 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Improve diagnsotic further on integer overflow.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173461 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25ConvertUTF.h: Suppress a warning with ptrdiff_t on i686. [-Wsign-compare]NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173436 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Add missing InGroup for this warning.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173429 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Sync 'in class initialization of static const double' extension up with GCC,Richard Smith
and split it out of -Wgnu into its own warning flag. * In C++11, this is now a hard error (GCC has no extension here in C++11 mode). The error can be disabled with -Wno-static-float-init, and has a fixit to add 'constexpr'. * In C++98, this is still an ExtWarn, but is now controlled by -Wstatic-float-init as well as -Wgnu. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173414 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25[Frontend] Remove another IsUserSpecified member variable that is now unused.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173412 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25[Lex] Remove DirectoryLookup.UserSpecified, which is unused.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173409 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Implement the reader of the global module index and wire it into theDouglas Gregor
AST reader. The global module index tracks all of the identifiers known to a set of module files. Lookup of those identifiers looks first in the global module index, which returns the set of module files in which that identifier can be found. The AST reader only needs to look into those module files and any module files not known to the global index (e.g., because they were (re)built after the global index), reducing the number of on-disk hash tables to visit. For an example source I'm looking at, we go from 237844 total identifier lookups into on-disk hash tables down to 126817. Unfortunately, this does not translate into a performance advantage. At best, it's a wash once the global module index has been built, but that's ignore the cost of building the global module index (which is itself fairly large). Profiles show that the global module index code is far less efficient than it should be; optimizing it might give enough of an advantage to justify its continued inclusion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173405 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Rename the -cc1 option "-generate-module-index" toDouglas Gregor
"-fmodules-global-index" and expand its behavior to include both the use and generation of the global module index. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173404 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Track the number of lookups and hits into the on-disk hash tables forDouglas Gregor
identifiers within the AST file reader. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173403 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25Clean up: since we have FunctionDecl::IsInline, make it store the right valueRichard Smith
for template instantiations, and use it to simplify the implementation of FunctionDecl::isInlined(). This incidentally changes the result of isInlined on a declared-but-not-defined non-inline member function from true to false. This is sort of a bug fix, but currently isInlined is only called on function definitions, so it has no visible effects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173397 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24[analyzer] Fixup for r173385 and r173386 - initialize the members.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173392 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24Fixes text of diagnostics in integer overflow patch.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173388 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24[analyzer] Add "-analyzer-config mode=[deep|shallow] ".Anna Zaks
The idea is to introduce a higher level "user mode" option for different use scenarios. For example, if one wants to run the analyzer for a small project each time the code is built, they would use the "shallow" mode. The user mode option will influence the default settings for the lower-level analyzer options. For now, this just influences the ipa modes, but we plan to find more optimal settings for them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173386 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24[analyzer] Replace "-analyzer-ipa" with "-analyzer-config ipa".Anna Zaks
The idea is to eventually place all analyzer options under "analyzer-config". In addition, this lays the ground for introduction of a high-level analyzer mode option, which will influence the default setting for IPAMode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173385 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24[analyzer] refactor: access IPAMode through the accessor.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173384 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24Patch to check for integer overflow. It has beenFariborz Jahanian
commented on and approved by Richard Smith. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173377 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24Move 'convertUTF8Sequence' helper into the C++ section of the header file.Jordan Rose
It's annotated as "inline", but ConvertUTF.c should still be able to compile as C89. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173376 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24Add a fixit for \U1234 -> \u1234.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173371 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24Handle universal character names and Unicode characters outside of literals.Jordan Rose
This is a missing piece for C99 conformance. This patch handles UCNs by adding a '\\' case to LexTokenInternal and LexIdentifier -- if we see a backslash, we tentatively try to read in a UCN. If the UCN is not syntactically well-formed, we fall back to the old treatment: a backslash followed by an identifier beginning with 'u' (or 'U'). Because the spelling of an identifier with UCNs still has the UCN in it, we need to convert that to UTF-8 in Preprocessor::LookUpIdentifierInfo. Of course, valid code that does *not* use UCNs will see only a very minimal performance hit (checks after each identifier for non-ASCII characters, checks when converting raw_identifiers to identifiers that they do not contain UCNs, and checks when getting the spelling of an identifier that it does not contain a UCN). This patch also adds basic support for actual UTF-8 in the source. This is treated almost exactly the same as UCNs except that we consider stray Unicode characters to be mistakes and offer a fixit to remove them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173369 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24Unify diagnostics for \x, \u, and \U without any following hex digits.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173368 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24[ms-inline asm] Add an error when trying to compile MS-style inline assemblyChad Rosier
for an unsupported architecture. rdar://13063988 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173364 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24[driver] Associate a JobAction with each result file. This enables the driverChad Rosier
to delete result files for only those commands that fail. Part of rdar://12984531 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173361 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24PR14922: when printing an attribute, use the real syntax of the attribute ↵Michael Han
(GNU, C++11, MS Declspec) instead of hardcoded GNU syntax. Introduce a spelling index to Attr class, which is an index into the attribute spelling list of an attribute defined in Attr.td. This index will determine the actual spelling used by an attribute, as it incorporates both the syntax and naming of the attribute. When constructing an attribute AST node, the spelling index is computed based on attribute kind, scope (if it's a C++11 attribute), and name, then passed to Attr that will use the index to print itself. Thanks to Richard Smith for the idea and review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173358 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24Give warn_redecl_library_builtin a flag name: ↵Nick Lewycky
-Wincompatible-library-redeclaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173319 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Implement the writer side of the global module index. Douglas Gregor
The global module index is a "global" index for all of the module files within a particular subdirectory in the module cache, which keeps track of all of the "interesting" identifiers and selectors known in each of the module files. One can perform a fast lookup in the index to determine which module files will have more information about entities with a particular name/selector. This information can help eliminate redundant lookups into module files (a serious performance problem) and help with creating auto-import/auto-include Fix-Its. The global module index is created or updated at the end of a translation unit that has triggered a (re)build of a module by scraping all of the .pcm files out of the module cache subdirectory, so it catches everything. As with module rebuilds, we use the file system's atomicity to synchronize. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173301 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Implement -Wvla correctlyDmitri Gribenko
GCC implements -Wvla as "warn on every VLA" (this is useful to find every VLA, for example, if they are forbidden by coding guidelines). Currently Clang implements -Wvla as "warn on VLA when it is an extension". The attached patch makes our behavior match GCC. The existing vla extwarn is moved under -Wvla-extension and is still included into -Wgnu. This fixes PR5953. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173286 91177308-0d34-0410-b5e6-96231b3b80d8