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2013-01-30Add OpenCL error that a kernel function must have void return type. Includes ↵Tanya Lattner
a test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173963 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Move UTF conversion routines from clang/lib/Basic to llvm/lib/SupportDmitri Gribenko
This is required to use them in TableGen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173924 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Semantic analysis and CodeGen support for C11's _Noreturn. This is modeled asRichard Smith
an attribute for consistency with our other noreturn mechanisms. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173898 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Provide a fixit for constexpr non-static data members.David Blaikie
If the member has an initializer, assume it was probably intended to be static and suggest/recover with that. If the member doesn't have an initializer, assume it was probably intended to be const instead of constexpr and suggest that. (if the attempt to apply these changes fails, don't make any suggestion & produce the same diagnostic experience as before. The only case where this can come up that I know of is with a mutable constexpr with an initializer, since mutable is incompatible with static (but it's already incompatible with const anyway)) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173873 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29[ubsan] Implement the -fcatch-undefined-behavior flag using a trappingChad Rosier
implementation; this is much more inline with the original implementation (i.e., pre-ubsan) and does not require run-time library support. The trapping implementation can be invoked using either '-fcatch-undefined-behavior' or '-fsanitize=undefined-trap -fsanitize-undefined-trap-on-error', with the latter being preferred. Eventually, the -fcatch-undefined-behavior' flag will be removed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173848 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Move -Wstatic-float-init fixit into a note & don't recover as if constexprDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173841 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Add a diagnostic for an OpenCL kernel with a pointer pointer argument.Joey Gouly
Also refactor the surrounding code a little. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173791 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Produce a diagnostic if alignas is applied to an expression. Neither C11 norRichard Smith
C++11 allows that. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173789 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Downgrade 'attribute ignored when parsing type' from error to warning, to matchRichard Smith
the diagnostic's warn_ name. Switch some places (notably C++11 attributes) which really wanted an error over to a different diagnostic. Finally, suppress the diagnostic entirely for __ptr32, __ptr64 and __w64, to avoid producing diagnostics in important system headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173788 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Implement C++11 [dcl.align]p1 and C11 6.7.5/2 rules for alignas and _Alignas.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173779 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Treat alignas and _Alignas as keyword attributes. This allows us toRichard Smith
pretty-print them properly (modulo the more general badness in alignment attribute printing). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173752 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Actually remove the hack which was blocking the Borland-style attributes fromRichard Smith
working, and add the missing attribute spellings. This brings _pascal, _fastcall, _stdcall and _cdecl to life in -fborland-extensions mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173749 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Replace AS_MSTypespec with AS_Keyword, for representing any attribute spelledRichard Smith
as a keyword. Rationalize existing attributes to use it as appropriate, and to not lie about some __declspec attributes being GNU attributes. In passing, remove a gross hack which was discarding attributes which we could handle. This results in us actually respecting the __pascal keyword again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173746 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Abstract the behavior of when to use base-class tail padding.John McCall
For fun, I added a comedy "actually obey the C++11 POD rules" option which nobody is allowed to use. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173744 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Finish semantic analysis for [[carries_dependency]] attribute.Richard Smith
This required plumbing through a new flag to determine whether a ParmVarDecl is actually a parameter of a function declaration (as opposed to a function typedef etc, where the attribute is prohibited). Weirdly, this attribute (just like [[noreturn]]) cannot be applied to a function type, just to a function declaration (and its parameters). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173726 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Undo my re-wording of the "ARC forbids Objective-C objects in ..."Douglas Gregor
error. Jordan is right. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173713 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Forbid the use of objects in unions in Objective-C++ ARC. FixesDouglas Gregor
<rdar://problem/13098104>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173708 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28Back out r173689. It doesn't matter when we're building with Clang anyway.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173693 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
2013-01-26Give 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
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