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2012-05-16Add _alignof and __builtin_alignof as aliases for __alignof inDouglas Gregor
Microsoft mode, from Will Wilson! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156940 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16Warn about -Wno-foo where foo is an unknown warning option. This is helpful Chad Rosier
for subtle misspellings such as -Wno-unused-command-line-arguments instead of -Wno-unused-command-line-argument. Also fix the diagnostic messages to properly handle -Wno- options. Previously, the positive version was always emitted (i.e., -Wfoo was emitted for -Wno-foo). rdar://11461500 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156937 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16Move the warnings for extra semi-colons under -Wextra-semi. Also, addedRichard Trieu
a warning for an extra semi-colon after function definitions. Added logic so that a block of semi-colons on a line will only get one warning instead of a warning for each semi-colon. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156934 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-16Produce more useful 'duplicate case' diagnostics. Fixes PR9243, from Terry Long!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156904 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15objective-c: perform strict type checking on propertyFariborz Jahanian
type and its accessor type and issue error if types are incompatible, instead of crashing in IRgen. // rdar://1105153 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156871 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15Allow objc @() syntax for enum types.Argyrios Kyrtzidis
Previously we would reject it as illegal using a value of enum type and on ObjC++ it was illegal to use an enumerator as well. rdar://11454917 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156843 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15Remove word 'block' from option and diagnostic I addedFariborz Jahanian
in r156825. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156831 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15Improve some of the conversion warnings to fire on conversion to bool.David Blaikie
Moves the bool bail-out down a little in SemaChecking - so now -Wnull-conversion and -Wliteral-conversion can fire when the target type is bool. Also improve the wording/details in the -Wliteral-conversion warning to match the -Wconstant-conversion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156826 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15objective-c nonfragile abi: discourage ivar declarationsFariborz Jahanian
in @interface by issuing warning (off by default) under opt'ed in flag -Winterface-block-ivar. // rdar://10763173 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156825 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15Fix our handling of visibility in explicit template instantiations.Rafael Espindola
* Don't copy the visibility attribute during instantiations. We have to be able to distinguish struct HIDDEN foo {}; template<class T> DEFAULT void bar() {} template DEFAULT void bar<foo>(); from struct HIDDEN foo {}; template<class T> DEFAULT void bar() {} template void bar<foo>(); * If an instantiation has an attribute, it takes precedence over an attribute in the template. * With instantiation attributes handled with the above logic, we can now select the minimum visibility when looking at template arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156821 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15Further improvement to wording of overload resolution diagnostics, and includingRichard Smith
the sole parameter name in the diagnostic in more cases. Patch by Terry Long! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156807 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15Fold the six functions checking explicitly-defaulted special member functionsRichard Smith
into one. These were all performing almost identical checks, with different bugs in each of them. This fixes PR12806 (we weren't setting the exception specification for an explicitly-defaulted, non-user-provided default constructor) and enforces 8.4.2/2's rule that an in-class defaulted member must exactly match the implicit parameter type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156802 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-13Produce a warning for mismatched section attributes. Completest pr9356.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156727 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-12Add support for __attribute__((hot)) and __attribute__((cold)).Benjamin Kramer
Currently cold functions are marked with the "optsize" attribute in CodeGen so they are always optimized for size. The hot attribute is just ignored, LLVM doesn't have a way to express hotness at the moment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-12Don't crash on boxed strings when +stringWithUTF8String: is missing.Jordy Rose
Also, unify some diagnostics for boxed expressions that have the same form. Fixes PR12804. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156713 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-11Teach the parser to deal with multiple spellings for the sameDouglas Gregor
attribute, rather than requiring multiple cases in consumers of this information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156666 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-11Hexagon V5 intrinsics support in clang.Sirish Pande
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156630 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-11PR11857: When the wrong number of arguments are provided for a functionRichard Smith
which expects exactly one argument, include the name of the argument in the diagnostic text. Patch by Terry Long! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156607 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-09ARM: Support marking intrinsic definitions as 'unavailable'Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156490 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-09A little tweak to the SFINAE condition reporting. Don't say:Richard Smith
candidate template ignored: substitution failed [with T = int]: no type named 'type' in 'std::enable_if<false, void>' Instead, just say: candidate template ignored: disabled by 'enable_if' [with T = int] ... and point at the enable_if condition which (we assume) failed. This is applied to all cases where the user writes 'typename enable_if<...>::type' (optionally prefixed with a nested name specifier), and 'enable_if<...>' names a complete class type which does not have a member named 'type', and this results in a candidate function being ignored in a SFINAE context. Thus it catches 'std::enable_if', 'std::__1::enable_if', 'boost::enable_if' and 'llvm::enable_if'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156463 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08add -fbounds-checking option.Nuno Lopes
When enabled, clang generates bounds checks for array and pointers dereferences. Work to follow in LLVM's backend. OK'ed by Chad; thanks for the review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156431 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08Fix fmin*/fmax* library builtin signatures.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156396 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08Fixes a typo. note_xxx not not_xxx.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156391 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08Add missing 'y'.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156348 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-07When we suppress an error due to SFINAE, stash the diagnostic away with theRichard Smith
overload candidate, and include its message in any subsequent 'candidate not viable due to substitution failure' note we may produce. To keep the note small (since the 'overload resolution failed' diagnostics are often already very verbose), the text of the SFINAE diagnostic is included as part of the text of the note, and any notes which were attached to it are discarded. There happened to be spare space in OverloadCandidate into which a PartialDiagnosticAt could be squeezed, and this patch goes to lengths to avoid unnecessary PartialDiagnostic copies, resulting in no slowdown that I could measure. (Removal in passing of some PartialDiagnostic copies has resulted in a slightly smaller clang binary overall.) Even on a torture test, I was unable to measure a memory increase of above 0.2%. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156297 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-06Split mergeAvailabilityAttr out of handleAvailabilityAttr. This is importantRafael Espindola
for having a uniform logic for adding attributes to a decl. This in turn is needed to fix the FIXME: // FIXME: This needs to happen before we merge declarations. Then, // let attribute merging cope with attribute conflicts. ProcessDeclAttributes(S, NewFD, D, /*NonInheritable=*/false, /*Inheritable=*/true); The idea is that mergeAvailabilityAttr will become a method. Once attributes are processed before merging, it will be called from handleAvailabilityAttr to handle multiple attributes in one decl: void f(int) __attribute__((availability(ios,deprecated=3.0), availability(ios,introduced=2.0))); and from SemaDecl.cpp to handle multiple decls: void f(int) __attribute__((availability(ios,deprecated=3.0))); void f(int) __attribute__((availability(ios,introduced=2.0))); As a bonus, use the new structure to diagnose incompatible availability attributes added to different decls (see included testcases). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156269 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-06Put the availability warnings in a group.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156261 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-05Use raw_ostream in TypePrinter and eliminate uses of temporary std::strings.Argyrios Kyrtzidis
Part of rdar://10796159 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156228 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Move Sema::VerifyIntegerConstantExpression() andDouglas Gregor
Sema::ConvertToIntegralOrEnumerationType() from PartialDiagnostics to abstract "diagnoser" classes. Not much of a win here, but we're -several PartialDiagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156217 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Remove DiagGroups from notes, and add a TableGen assertion to catch them.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156192 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Synchronize the representations of DeclarationName and Selector soDouglas Gregor
that bridging between the two is free. Saves ~4k of code size, although I don't see any measurable performance difference (unfortunately). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156187 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03[PCH] When validating that the files coming from PCH did not change, alsoArgyrios Kyrtzidis
validate that we didn't override the contents of any of such files. If this is detected, emit a diagnostic error and recover gracefully by using the contents of the original file that the PCH was built from. Part of rdar://11305263 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156107 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03Remove diagnostic groups and DefaultIgnore from notes.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156087 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03Add -Wimplicit-fallthrough warning flag, which warns on fallthrough betweenRichard Smith
cases in switch statements. Also add a [[clang::fallthrough]] attribute, which can be used to suppress the warning in the case of intentional fallthrough. Patch by Alexander Kornienko! The handling of C++11 attribute namespaces in this patch is temporary, and will be replaced with a cleaner mechanism in a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156086 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03In StringLiteralParser::init, make sure we emit an error whenArgyrios Kyrtzidis
failing to lex the string, as suggested by Eli. Part of rdar://11305263. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156081 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03objective-c: warn for properties being default synthesizedFariborz Jahanian
under -Wobjc-missing-property-synthesis which must be opted-in. // rdar://11295716 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156078 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-02Add commas to for loop warning to separate variable names.Richard Trieu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156033 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-02Revert most of r154844, which was disabled in r155975. Keep around theRichard Smith
refactorings in that revision, and some of the subsequent bugfixes, which seem to be relevant even without delayed exception specification parsing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-02Introduce the notion of 'ignored' attributes, so that all attributesDouglas Gregor
we accept are not modeled somehow via Attr.td. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155998 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-02Introduce the notion of an attribute that has no direct representationDouglas Gregor
as an AST node, and fold a number of such attributes into Attr.td. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155995 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-02Implement the alternate spellings of attributes aligned (as "align")Douglas Gregor
and const (as "__const") using tblgen, rather than explicitly hacking them in. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155991 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Add a missing RequireCompleteType call when synthesizing properties. ↵Eli Friedman
<rdar://problem/11333367>. While I'm here, fix source locations for other diagnostics related to property synthesis. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155953 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Diagnostics should start with a lower-case letter.Patrick Beard
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155936 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Get rid of storelv4si builtin as it can be expressed directly. This is generalChad Rosier
goodness because it provides opportunites to cleanup things. For example, uint64_t t1(__m128i vA) { uint64_t Alo; _mm_storel_epi64((__m128i*)&Alo, vA); return Alo; } was generating movq %xmm0, -8(%rbp) movq -8(%rbp), %rax and now generates movd %xmm0, %rax rdar://11282581 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155924 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Fix compilation with mingw-w64.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155904 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Place several uncovered warnings under warning flags, and tweak diagnostic ↵Ted Kremenek
output including the term "gc" (in lowercase). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155892 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Move warn_cxx0x_right_shift_in_template_arg to CXX11Compat group, fromDouglas Gregor
Dmitri Gribenko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155872 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-30Remove -Wc++98-compat warning for an outrageously-rare circumstance of 'this'Richard Smith
being used in an exception specification in a way which isn't otherwise ill-formed in C++98: this warning also incorrectly triggered on uses of 'this' inside thread-safety attributes, and the mechanism required to tell these cases apart is more complex than can be justified by the (minimal) value of this part of -Wc++98-compat. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155857 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-30Add -Wloop-analysis. This warning will fire on for loops which the variablesRichard Trieu
in the loop conditional do not change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155835 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-29[class.copy]p23: Fix an assertion caused by incorrect argument numbering in aRichard Smith
diagnostic, add a test for this paragraph, and tighten up the diagnostic wording a little. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155784 91177308-0d34-0410-b5e6-96231b3b80d8