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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
2013-01-26Give 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
2013-01-26Since 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
2013-01-25The 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
2013-01-25Add 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
2013-01-24Fixes 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
2013-01-24Patch 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
2013-01-24Give 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 -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
2013-01-23Add a new LangOpt NativeHalfType. This option allows for native half/fp16Joey Gouly
operations (as opposed to storage only half/fp16). Also add some semantic checks for OpenCL half types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173254 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22[ms-inline asm] Remove the -fenable-experimental-ms-inline-asm flag. MS-styleChad Rosier
inline assembly can be enable with -fasm-blocks or -fms-extensions alone. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173186 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22Split "discards qualifiers" warnings of -Wincompatible-pointer-types into ↵Ted Kremenek
subgroup. This allows users to promote -Wincompatible-pointer-type warnings to errors but keep those for "discard qualifiers" as warnings (if they so desire). Addresses <rdar://problem/13062738>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173184 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22[ms-inline asm] Remove a warning about ms-style inline assembly not beingChad Rosier
supported. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173177 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-21Add a fixit for _Noreturn main,Dmitri Gribenko
add tests for fixits removing static and inline from main git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173024 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-20Prune unused diagnostics.Benjamin Kramer
Courtesy of utils/find-unused-diagnostics.sh. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172988 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
2013-01-20Nuke SetUpBuildDumpLog.Sean Silva
Also, it was the only reason that `argc` and `argv` were being passed into createDiagnostics, so remove those parameters and clean up callers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172945 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-19Reapply r172878 with test case.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172888 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-19Revert r172878, "Reword warning about using a *static* variable within its ↵NAKAMURA Takumi
own initialization." It broke, at least, linux, msvc and mingw bots. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172879 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-19Reword warning about using a *static* variable within its own initialization.Ted Kremenek
The warning is still under -Wuninitialized (although technically this is defined behavior), but under a subgroup -Wstatic-self-init. This addresses PR 10265. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172878 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18Fix mismatched #endif.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172860 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18[ubsan] Add support for -fsanitize-blacklistWill Dietz
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172808 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Some builtins do not evaluate their arguments. Teach EvaluatedExprVisitor notRichard Smith
to visit them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172769 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17In Objective-C ARC, completely ignore ownership qualifiers on theDouglas Gregor
return type of a function by canonicalizing them away. They are useless anyway, and conflict with our rules for template argument deduction and __strong. Fixes <rdar://problem/12367446>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172768 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Parsing support for C11's _Noreturn keyword. No semantics yet.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172761 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Add some semantic checks for OpenCL. Variadic macros, VLAs and bitfields are ↵Joey Gouly
not supported. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172732 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Implement C++11 semantics for [[noreturn]] attribute. This required splittingRichard Smith
it apart from [[gnu::noreturn]] / __attribute__((noreturn)), since their semantics are not equivalent (for instance, we treat [[gnu::noreturn]] as affecting the function type, whereas [[noreturn]] does not). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172691 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Add -Wunsequenced (with compatibility alias -Wsequence-point) to warn onRichard Smith
expressions which have undefined behavior due to multiple unsequenced modifications or an unsequenced modification and use of a variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172690 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Implement a fixit for -Wmain-return-typeDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172684 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16No longer crashing with an assert when __has_include or __has_include_next ↵Aaron Ballman
is used outside of a preprocessor directive. This fixes PR14837. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172639 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16First step in implementation of mips16 and nomips16 attributes.Reed Kotler
Waiting for new llvm attribute code for the next step. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172626 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15When checking availability attributes for consistency between anDouglas Gregor
overriding and overridden method, allow the overridden method to have a narrower contract (introduced earlier, deprecated/obsoleted later) than the overriding method. Fixes <rdar://problem/12992023>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172567 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15Add -fopenmp -cc1 option and wire it up to define _OPENMP, from Alexey Bataev!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172509 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Multiprecision subtraction builtins.Michael Gottesman
We lower these into 2x chained usub.with.overflow intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172476 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Infer "link" lines for top-level frameworks. Essentially, a frameworkDouglas Gregor
will have a shared library with the same name as its framework (and no suffix!) within its .framework directory. Detect this both when inferring the whole top-level framework and when parsing a module map. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172439 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
2013-01-14Accept [[gnu::*]] for all __attribute__((*))s which are:Richard Smith
1) Supported by Clang, and 2) Supported by GCC, and 3) Documented in GCC's manual. g++ allows its C++11-style attributes to appertain only to the entity being declared, and never to a type (even for a type attribute), so we do the same. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172382 91177308-0d34-0410-b5e6-96231b3b80d8