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2012-10-27Reapply 166855 with an early exit on null QualTypes.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166876 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-27Revert r166855. I can reproduce the bootstrap failure and have a testcaseRafael Espindola
to reduce. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166863 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-27Fix cases where we were not producing an error when a computed goto couldRafael Espindola
jump over destructor calls. Fixes pr13812. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166855 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25Recommit Eric's code to validate ASM string's constraints and modifiers.Bill Wendling
This code checks the ASM string to see if the output size is able to fit within the variable specified as the output. For instance, scalar-to-vector conversions may not really work. It's on by default, but can be turned off with a flag if you think you know what you're doing. This is placed under a flag ('-Wasm-operand-widths') and flag group ('-Wasm'). <rdar://problem/12284092> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166737 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25[ms-inline asm] Add support for field lookup in the SemaCallback. Patch by Eli.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25Revert r166647 to rethink the patch...Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166655 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25Add some support for diagnosing possibly mismatched constraint, type size andBill Wendling
modifiers. (From an idea by Eric...) <rdar://problem/12284092> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166647 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24PR14171: Don't crash if we hit one of the paths where GetFullTypeForDeclaratorRichard Smith
rebuilds a function type, and that function type has parens around its name. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166644 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24Fix false positive in -Wunused-variable when a ctor call make involve cleanups.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23Use a .def file for most of the diagnostic options.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166520 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23Objective-C: check that when a category method is being implemented,Fariborz Jahanian
method type in cateogry matches the implementation. // rdar://12519216 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166518 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23Add a new warning -Wmissing-variable-declarations, to warn about variablesEli Friedman
defined without a previous declaration. This is similar to -Wmissing-prototypes, but for variables instead of functions. Patch by Ed Schouten. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166498 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23When rebuilding a DependentScopeDeclRefExpr, perform a lookup into the scopeRichard Smith
even if it's dependent, in case it now names a member of the current instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166496 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23[ms-inline asm] Update for r166433.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166489 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23[ms-inline-asm] Add handling for errors coming out of the backend.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166463 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23Ugly ugly hack for libstdc++-4.6 and libstdc++-4.7 compatibility. TheseRichard Smith
libraries have an incorrect definition of std::common_type (inherited from a bug in the standard -- see LWG issue 2141), whereby they produce reference types when they should not. If we instantiate a typedef named std::common_type<...>::type, which is defined in a system header as decltype(... ? ... : ...), and the decltype produces a reference type, convert it to the non-reference type. (This doesn't affect any LWG2141-conforming implementation of common_type, such as libc++'s, because the default implementation of common_type<...>::type isn't supposed to produce a reference type.) This is horrible. I'm really sorry. :( Better ideas appreciated! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166455 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-21Unrevert r166268, reverted in r166272, with a fix for the issue which NickRichard Smith
found: if an overloaded operator& is present before a template definition, the expression &T::foo is represented as a CXXOperatorCallExpr, not as a UnaryOperator, so we didn't notice that it's permitted to reference a non-static data member of an unrelated class. While investigating this, I discovered another problem in this area: we are treating template default arguments as unevaluated contexts during substitution, resulting in performing incorrect checks for uses of non-static data members in C++11. That is not fixed by this patch (I'll look into this soon; it's related to the failure to correctly instantiate constexpr function templates), but was resulting in this bug not firing in C++11 mode (except with -Wc++98-compat). Original message: PR14124: When performing template instantiation of a qualified-id outside of a class, diagnose if the qualified-id instantiates to a non-static class member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166385 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20Move private classes into anonymous namespaces.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166377 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20Rework implementation of DR1492: Apply the resolution to operator delete too,Richard Smith
since it also has an implicit exception specification. Downgrade the error to an extwarn, since at least for operator delete, system headers like to declare it as 'noexcept' whereas the implicit definition does not have an explicit exception specification. Move the exception specification for user-declared 'operator delete' functions from the type-as-written into the type, to reflect reality and to allow us to detect whether there was an implicit exception spec or not. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166372 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20Fix __builtin_va_arg assertion failure in ARM AAPCS.Logan Chien
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166369 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20DR1472: A reference isn't odr-used if it has preceding initialization,Richard Smith
initialized by a reference constant expression. Our odr-use modeling still needs work here: we don't yet implement the 'set of potential results of an expression' DR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166361 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19[ms-inline asm] Set the SemaCallback in the TargetAsmParser.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166310 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19Clarify wording of -Wshift-op-parentheses.David Blaikie
Suggestion from Matt Beaumont-Gay reviewing r165283. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166296 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19[ms-inline asm] Set the MCTargetAsmParser as paring MS-style inline asm.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166293 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19Allow objc_requires_super to be used to check class methods as well.Jordan Rose
Also, unify ObjCShouldCallSuperDealloc and ObjCShouldCallSuperFinalize. The two have identical behavior and will never be active at the same time. There's one last simplification now, which is that if we see a call to [super foo] and we are currently in a method named 'foo', we will /unconditionally/ clear the ObjCShouldCallSuper flag, rather than check first to see if we're in a method where calling super is required. There's no reason to pay the extra lookup price here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166285 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19Revert r166268, this fix for a crash-on-invalid introduced a rejects-valid.Nick Lewycky
Richard has an unreduced testcase to work with. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166272 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19PR14124: When performing template instantiation of a qualified-id outside of aRichard Smith
class, diagnose if the qualified-id instantiates to a non-static class member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166268 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19Handle diamond inheritance in -Woverloaded-virtual.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166254 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18[ms-inline asm] Add a size argument to the LookupInlineAsmIdentifier() callback,Chad Rosier
which will be used by the asm matcher in the near future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166221 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Fix Objective-C implicit property synthesis for C++ classes so we use valid Eli Friedman
source locations in places where it is necessary for diagnostics. By itself, this causes assertions, so while I'm here, also fix property synthesis for properties of C++ class type so we use so we properly set up a scope and mark variable declarations. <rdar://problem/12514189>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166219 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18[ms-inline asm] Have the LookupInlineAsmIdentifier() callback function return aChad Rosier
*NamedDecl. In turn, build the expressions after we're finished parsing the asm. This avoids a crasher if the lookup fails. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166213 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Factor CollectClassPropertyImplementations out of Sema into ASTAnna Zaks
This would make it possible for the analyzer to use the function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166210 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18From Vassil Vassilev: enable Sema to deal with multiple ExternalSemaSources.Axel Naumann
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166208 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18DR1442: In a range-based for statement, namespace 'std' is not an associatedRichard Smith
namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166194 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18PR14021: Copy lookup results to ensure safe iteration.David Blaikie
Within the body of the loop the underlying map may be modified via Sema::AddOverloadCandidate -> Sema::CompareReferenceRelationship -> Sema::RequireCompleteType to avoid the use of invalid iterators the sequence is copied first. A reliable, though large, test case is available - it will be reduced and committed shortly. Patch by Robert Muth. Review by myself, Nico Weber, and Rafael Espindola. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166188 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18[ms-inline asm] Move most of the AsmParsing logic in clang back into the MCChad Rosier
layer. Use the new ParseMSInlineAsm() API and add an implementation of the MCAsmParserSemaCallback interface. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166184 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Tests for DR1507.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166162 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Update comment to match DR1502.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166158 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Fix -Woverloaded-virtual when the using statement refers to a base ↵David Blaikie
declaration of a virtual function. GCC and Clang both do not warn on: struct a { virtual void func(); }; struct b: a { virtual void func(); void func(int); }; struct c: b { void func(int); using b::func; }; but if the "using" was using a::func GCC would still remain silent where Clang would warn. This change makes Clang consistent with GCC's existing behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166154 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17DR1528: C++11 doesn't allow repeated cv-qualifiers in declarators after all.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166152 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Implement C++ 10.3p16 - overrides involving deleted functions must match.David Blaikie
Only deleted functions may override deleted functions and non-deleted functions may only override non-deleted functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166082 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16DR1492: In a definition of a destructor, the exception specification must beRichard Smith
explicitly specified iff it was specified in the declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166071 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Add pnaclcall convention to Native Client targets.Derek Schuff
Because PNaCl bitcode must be target-independent, it uses some different bitcode representations from other targets (e.g. byval and sret for structures). This means that without additional type information, it cannot meet some native ABI requirements for some targets (e.g. passing structures containing unions by value on x86-64). To allow generation of code which uses the correct native ABIs, we also support triples such as x86_64-nacl, which uses target-dependent IR (as opposed to le32-nacl, which uses byval and sret). To allow interoperation between the two types of code, this patch adds a calling convention attribute to be used in code compiled with the target-dependent triple, which will generate code using the le32-style bitcode. This calling convention does not need to be explicitly supported in the backend because it determines bitcode representation rather than native conventions (the backend just needs to undersand how to handle byval and sret for the Native Client OS). This patch implements __attribute__((pnaclcall)) to generate calls in bitcode according to the le32 bitcode conventions, an attribute which is accepted by any Native Client target, but issues a warning otherwise. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166065 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16[ms-inline asm] Move some logic around to simplify the interface between theChad Rosier
front-end and the AsmParser. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166063 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Implement GCC's -Wint-to-pointer-cast.David Blaikie
This implementation doesn't warn on anything that GCC doesn't warn on with the exception of templates specializations (GCC doesn't warn, Clang does). The specific skipped cases (boolean, constant expressions, enums) are open for debate/adjustment if anyone wants to demonstrate that GCC is being overly conservative here. The only really obvious false positive I found was in the Clang regression suite's MPI test - apparently MPI uses specific flag values in pointer constants. (eg: #define FOO (void*)~0) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166039 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Minor tweak to last patch along with a test case.Fariborz Jahanian
// rdar://12491143 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166030 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16fixes an objc crash involving objc bool literal onFariborz Jahanian
hopelessly poorly written code after spewing several errors. // rdar://12491143 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166025 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Un-revert r164907 and r164902 (+ follow-ups), 10.6 build fix to follow.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165988 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Fixed CXXNamedCast right paren location propagation to instantiations.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165977 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Fixed LabelDecl source range.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165976 91177308-0d34-0410-b5e6-96231b3b80d8
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