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2011-01-26Rvalue references for *this: explicitly keep track of whether aDouglas Gregor
reference binding is for the implicit object parameter of a member function with a ref-qualifier. My previous comment, that we didn't need to track this explicitly, was wrong: we do in fact get rvalue-references-prefer-rvalues overloading with ref-qualifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124313 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Rvalue references for *this: implement the implicit conversion rulesDouglas Gregor
for the implicit object argument to a non-static member function with a ref-qualifier (C++0x [over.match.funcs]p4). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124311 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Un-nest the meat of this function.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124310 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Fix some obvious bugs in the conditional-cleanup code and then make theJohn McCall
dtor cleanup use it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124309 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Rvalue references for *this: allow functions to be overloaded based onDouglas Gregor
the presence and form of a ref-qualifier. Note that we do *not* yet implement the restriction in C++0x [over.load]p2 that requires either all non-static functions with a given parameter-type-list to have a ref-qualifier or none of them to have a ref-qualifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124297 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Rvalue references for *this: add name mangling for ref-qualifiers,Douglas Gregor
using rules that I just made up this morning. This encoding has now been proposed to the Itanium C++ ABI group for inclusion, but of course it's still possible that the mangling will change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124296 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Rvalue references for *this: tentative parsing and template argument deduction.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124295 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Reference qualifiers for *this: implement C++0x [expr.mptr.oper]p6,Douglas Gregor
the restrictions on .* and ->* for ref-qualified pointer-to-member functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124294 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Clean up the C++0x __has_feature tests. Specifically:Douglas Gregor
- Don't publicize a C++0x feature through __has_feature if we aren't in C++0x mode (even if the feature is available only with a warning). - "auto" is not implemented well enough for its __has_feature to be turned on. - Fix the test of C++0x __has_feature to actually test what we're trying to test. Searching for the substring "foo" when our options are "foo" and "no_foo" doesn't work :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124291 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Reinstate r124236 (tweaking the rvalue-reference overload resolutionDouglas Gregor
rules), now that we've actually have a clean build for me to sully. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124290 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Rvalue references for *this: Douglas Gregor
- Add ref-qualifiers to the type system; they are part of the canonical type. Print & profile ref-qualifiers - Translate the ref-qualifier from the Declarator chunk for functions to the function type. - Diagnose mis-uses of ref-qualifiers w.r.t. static member functions, free functions, constructors, destructors, etc. - Add serialization and deserialization of ref-qualifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124281 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Teach -Wreturn-type that destructors can appearTed Kremenek
after a 'return' in a CFGBlock. This accidentally was working before, but the false assumption that 'return' always appeared at the end of the block was uncovered by a recent change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124280 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Tweak -Wuninitialized-experimental to not emitTed Kremenek
a warning for uses of an uninitialized variable when the use is a void cast, e.g. (void) x. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124278 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Better framework for conditional cleanups; untested as yet.John McCall
I'm separately committing this because it incidentally changes some block orderings and minor IR issues, like using a phi instead of an unnecessary alloca. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124277 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Rvalue references for *this: parse ref-qualifiers.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124276 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Use RecordLayout::getBaseClassOffset() where CharUnits are needed instead ofKen Dyck
converting getBaseClassOffsetInBits() to CharUnits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124274 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26[analyzer] Enable the self-init checker under command-line option ↵Argyrios Kyrtzidis
'-analyzer-check-objc-self-init' which by default is enabled by the driver for '--analyze'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124266 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Correct r124242 making sure function chunk that gets diagnosed is really ↵Argyrios Kyrtzidis
about the block. Clairvoyance by John! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124264 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26[analyzer] Improve the diagnostic for the self-init checker. Suggestion by Ted!Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124263 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26Tweak the rule for deciding if a provisional ivar is neededFariborz Jahanian
in default ivar synthesis. Fixes // rdar://8913053. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124258 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25[analyzer] Do the self-init check only on NSObject subclasses. Patch by ↵Argyrios Kyrtzidis
Jean-Daniel Dupas! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124249 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Speculatively revert r124236Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124247 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Diagnose calling convention attribute incompatibilities. Fixes rdar://8876096.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124244 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Fix infinite loop during error diagnostics. Fixes rdar://8875304.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124243 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Change error "function cannot return array type" -> "blocks cannot return ↵Argyrios Kyrtzidis
array type" when blocks are involved. Addresses rdar://8876238. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124242 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Fix regression in -Wreturn-type caused by notTed Kremenek
handling all CFGElement kinds. While writing the test case, it turned out that return-noreturn.cpp wasn't actually testing anything since it has the wrong -W flag. That uncovered another regression with the handling of destructors marked noreturn. WIP. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124238 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Speculatively implement a tweak to the C++0x overload resolution rulesDouglas Gregor
for reference binding (C++ [over.rank.ics]p3b1sb4), so that we prefer the binding of an lvalue reference to a function lvalue over the binding of an rvalue reference. This change resolves the ambiguity with std::forward and lvalue references to function types in a way that seems consistent with the original rvalue references proposal. My proposed wording for this change is shown in isBetterReferenceBindingKind(); we'll try to get this change adopted in the C++0x working paper as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124236 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Unbreak CMake build.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Don't try and symbolicate unions; we don't reasonTed Kremenek
about them yet. Fixes crash reported in PR 9049. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124228 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Add -add-plugin flag, which runs plugins in addition to codegen.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Add an attribute to forbid temporary instances of a type. This allows classJeffrey Yasskin
authors to write class __attribute__((forbid_temporaries)) Name { ... }; when they want to force users to name all variables of the type. This protects people from doing things like creating a scoped_lock that only lives for a single statement instead of an entire scope. The warning produced by this attribute can be disabled by -Wno-forbid-temporaries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124217 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Fix the ranking of reference bindings during overload resolutionDouglas Gregor
(C++0x [over.ics.rank]p3) when one binding is an lvalue reference and the other is an rvalue reference that binds to an rvalue. In particular, we were using the predict "is an rvalue reference" rather than "is an rvalue reference that binds to an rvalue", which was incorrect in the one case where an rvalue reference can bind to an lvalue: function references. This particular issue cropped up with std::forward, where Clang was picking an std::forward overload while forwarding an (lvalue) reference to a function. However (and unfortunately!), the right answer for this code is that the call to std::forward is ambiguous. Clang now gets that right, but we need to revisit the std::forward implementation in libc++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124216 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Recycle memory for GRStates that are never referencedTed Kremenek
by ExplodedNodes. This leads to about a 4-8% reduction in memory footprint when analyzing functions in sqlite3. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124214 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Teach -Wuninitialized-experimental to also warnTed Kremenek
about uninitialized variables captured by blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124213 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Tweak wording of static analyzer diagnosticTed Kremenek
for a block capturing the value of an uninitialized variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124212 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Teach TemplateSpecializationTypeLoc::initializeArgLocs() to actuallyDouglas Gregor
generate meaningful [*] template argument location information. [*] Well, as meaningful as possible, given that this entire code path is a hack for when we've lost type-source information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124211 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Don't insert class templates into the DynamicClasses vector.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124201 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Be a bit more defensive about setting the temporary base locationDouglas Gregor
during template instantiation. This code needs to eventually die, but this little tweak fixes PR8629, where bad location information slipped through to the location of a class template instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124199 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Implement the rvalue-reference deduction transformation (from T&& ->Douglas Gregor
T) when taking the address of an overloaded function or matching a specialization to a template (C++0x [temp.deduct.type]p10). Fixes PR9044. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124197 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25When performing a glvalue-to-xvalue static_cast that involves aDouglas Gregor
derived-to-base conversion, set the cast kind and base path appropriately. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124189 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Add the ns_consumes_self, ns_consumed, cf_consumed, and ns_returns_autoreleasedJohn McCall
attributes for the benefit of the static analyzer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124174 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Downgrade the error about rvalue references to an extension warningDouglas Gregor
and turn on __has_feature(cxx_rvalue_references). The core rvalue references proposal seems to be fully implemented now, pending lots more testing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25[analyzer] Handle the dot syntax for properties in the ExprEngine.Argyrios Kyrtzidis
We translate property accesses to obj-c messages by simulating "loads" or "stores" to properties using a pseudo-location SVal kind (ObjCPropRef). Checkers can now reason about obj-c messages for both explicit message expressions and implicit messages due to property accesses. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124161 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25[analyzer] Introduce ExprEngine::VisitObjCMessage for handling general ↵Argyrios Kyrtzidis
ObjCMessages (both message expressions and property access) and use it in ExprEngine::VisitObjCMessageExpr. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124160 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25[analyzer] Introduce ObjCMessage which represents both explicit ObjC message ↵Argyrios Kyrtzidis
expressions and implicit messages that are sent for handling properties in dot syntax. Replace all direct uses of ObjCMessageExpr in the checkers and checker interface with ObjCMessage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124159 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25In a ObjCMessageExpr with the super class as receiver, 'super' is actually a ↵Argyrios Kyrtzidis
ObjCInterfaceType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124158 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25[analyzer] Simplify GetReceiverType function in ↵Argyrios Kyrtzidis
BasicObjCFoundationChecks.cpp; no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124157 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24Revert r124146 for now. It appears to be failing on a few platforms.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124153 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24pre/post increase/decrease for AltiVec vectorsAnton Yartsev
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124146 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24Enhance the diagnostic for referring to a typedef with an elaborated name to beNick Lewycky
as useful in a templated context as it is without templates. Fixes PR8755! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124136 91177308-0d34-0410-b5e6-96231b3b80d8
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