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2010-09-17When emitting a new-expression inside a conditional expression,John McCall
the cleanup might not be dominated by the allocation code. In this case, we have to store aside all the delete arguments in case we need them later. There's room for optimization here in cases where we end up not actually needing the cleanup in different branches (or being able to pop it after the initialization code). Also make sure we only call this operator delete along the path where we actually allocated something. Fixes rdar://problem/8439196. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16When dealing with an anonymous enumeration declared in functionDouglas Gregor
prototype scope, temporarily set the context of the enumeration declaration to the translation unit. We do the same thing for parameters, until we have an actual function declaration on which to hang them. Fixes <rdar://problem/8435682>. There is more work to do in this area, since we have existing bugs with tags being declared/defined in function parameter lists. This fix is correct, and we'll end up extending it when we deal with those existing bugs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114135 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16improve the "enumeration value 'g' not handled in switch"Chris Lattner
warning to handle multiple enumerators with one warning. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114093 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16Don't add two code-completion results for the same selector; itDouglas Gregor
doesn't add any value. Instead, we'll just take the first method with that selector that we find and create a completion for it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114082 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16When collecting Objective-C methods for message send completions, beDouglas Gregor
sure to visit the protocols of protocols. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114079 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16Implement code completion for Objective-C class message sends that areDouglas Gregor
missing the opening bracket '[', e.g., NSArray <CC> at function scope. Previously, we would only give trivial completions (const, volatile, etc.), because we're in a "declaration name" scope. Now, we also provide completions for class methods of NSArray, e.g., alloc Note that we already had support for this after the first argument, e.g., NSArray method:x <CC> would get code completion for class methods of NSArray whose selector starts with "method:". This was already present because we recover as if NSArray method:x were a class message send missing the opening bracket (which was committed in r114057). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114078 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16Implement automatic bracket insertion for Objective-C class messageDouglas Gregor
sends. These are far trickier than instance messages, because we typically have something like NSArray alloc] where it appears to be a declaration of a variable named "alloc" up until we see the ']' (or a ':'), and at that point we can't backtrace. So, we use a combination of syntactic and semantic disambiguation to treat this as a message send only when the type is an Objective-C type and it has the syntax of a class message send (which would otherwise be ill-formed). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114057 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16Introduce new CFGElement hierarchy to support C++ CFG, based on Marcin's patchZhongxing Xu
and discussions with Ted and Jordy. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114056 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16Do not warn about empty bodies for 'if' statements if the body is expanded ↵Ted Kremenek
from a macro. Fixes <rdar://problem/8436021>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114049 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-16For self-comparison warning, check the source location of both the LHS and ↵Ted Kremenek
RHS to see if they are expanded from macros (and if so, omit the warning). Previously we were just looking at the location of the binary expression. Fixes <rdar://problem/8435950>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114044 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15Handle bracket insertion for Objective-C class messages in a veryDouglas Gregor
narrow, almost useless case where we're inside a parenthesized expression, e.g., (NSArray alloc]) The solution to the general case still eludes me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114039 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15Improve code completion for Objective-C message sends when the openingDouglas Gregor
'[' is missing. Prior commits improving recovery also improved code completion beyond the first selector, e.g., at or after the "to" in calculator add:x to:y but not after "calculator". We now provide the same completions for calculator <CC> that we would for [calculator <CC> if "calculator" is an expression whose type is something that can receive Objective-C messages. This code completion works for instance and super message sends, but not class message sends. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113976 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15Implement bracket insertion for Objective-C instance message sends asDouglas Gregor
part of parser recovery. For example, given: a method1:arg]; we detect after parsing the expression "a" that we have the start of a message send expression. We pretend we've seen a '[' prior to the a, then parse the remainder as a message send. We'll then give a diagnostic+fix-it such as: fixit-objc-message.m:17:3: error: missing '[' at start of message send expression a method1:arg]; ^ [ The algorithm here is very simple, and always assumes that the open bracket goes at the beginning of the message send. It also only works for non-super instance message sends at this time. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113968 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15one piece of code is responsible for the lifetime of every aggregateJohn McCall
slot. The easiest way to do that was to bundle up the information we care about for aggregate slots into a new structure which demands that its creators at least consider the question. I could probably be convinced that the ObjC 'needs GC' bit should be rolled into this structure. Implement generalized copy elision. The main obstacle here is that IR-generation must be much more careful about making sure that exactly git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-15Microsoft's flexible array rules relaxation:Francois Pichet
- in union - as the only element of a struct/class. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113909 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14Introduce a new code-completion context for a parenthesizedDouglas Gregor
expression, e.g., after the '(' that could also be a type cast. Here, we provide types as code-completion results in C/Objective-C (C++ already had them), although we wouldn't in a normal expression context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113904 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14Fix destructor and assignment operator lookup in the has_nothrow traits.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113897 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14RHS of property expression assignment requiresFariborz Jahanian
copy initialization before passing it to a setter. Fixes radar 8427922. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113885 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14When marking the declarations in a default argument expression asDouglas Gregor
"used", at the time that the default argument itself is used, also mark destructors that will be called by this expression. This fixes a regression that I introduced in r113700, which broke WebKit, and fixes <rdar://problem/8427926>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113883 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-14The paired 'operator delete' for a placement 'operator new' is always aJohn McCall
placement 'operator delete', even if there are no placement args (i.e. overload resolution selected an operator new with default arguments). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113861 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Revert "CMake: Update to use standard CMake dependency tracking facilities ↵Michael J. Spencer
instead" This reverts commit r113631 Conflicts: CMakeLists.txt lib/CodeGen/CMakeLists.txt git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113817 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Don't crash when using type traits on a class with a constructor template.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113796 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Remove CXXRecordDecl::getDefaultConstructor(), an inherently unsafe function ↵Sebastian Redl
due to lazy declaration of default constructors. Now that __has_nothrow_constructor doesn't use it anymore, part of PR8101 is fixed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113794 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Have __has_nothrow_copy use Sema's lookup routines. This fixes the problem ↵Sebastian Redl
with not finding implicitly declared copy constructors, part of PR8107. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113784 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Eagerly evaluate type traits in Sema instead of lazily in AST. They actually ↵Sebastian Redl
need Sema access to be correct, fixes coming up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113782 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13When applying 'delete' on a pointer-to-array type match GCC and EDG behavior ↵Argyrios Kyrtzidis
and treat it as 'delete[]'. Also offer a fix-it hint adding '[]'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113778 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Fix a typo noted by GaborDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113754 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Congruent diagnostic for void* arithmetic.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-13Parentheses around address non-type template argument is demoted to an ↵Abramo Bagnara
extension warning. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113739 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12Don't assert when attempting to take the address of an overloadedDouglas Gregor
function fails due to ambiguities in partial ordering of function templates. Fixes PR8033. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113725 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12When performing overload resolution, only compare the final conversionDouglas Gregor
sequences for two conversion functions when in fact we are in the text of initialization by a user-defined conversion sequences. Fixes PR8034. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113724 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12Diagnose the instantiation of variables (including static dataDouglas Gregor
members) with function type. Fixes PR8047. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113723 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12Don't complain about useless user-defined conversion functions whenDouglas Gregor
they were instantiated from a template. In template metaprogramming, stuff happens. Fixes PR8065. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12When diagnosing C++ [temp.expl.spec]p3 in C++98/03 mode, downgrade theDouglas Gregor
error to a warning if we're in a case that would be allowed in C++0x. This "fixes" PR8084 by making Clang accept more code than GCC and (non-strict) EDG do. Also, add the missing test case for the C++0x semantics, which should have been in r113717. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113718 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12Implement C++0x semantics for [temp.expl.spec]p2, which loosens theDouglas Gregor
restrictions on out-of-line specializations to allow them anywhere in an enclosing context. Motivated by PR8084. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113717 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12Add basic support for Microsoft enum forward declaration. Francois Pichet
Assigning an underlying integral type to an enum forward declaration will come in a next patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113716 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12Implement the "note" in C++ [over.built]p1, which is actually meant toDouglas Gregor
be a semantic requirement that a built-in overloaded operator is not added to the overload set of there is already a user-defined overloaded operator with the same parameter types. Fixes PR8087. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113713 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-12Don't perform integral promotions from an incompletion enumerationDouglas Gregor
type. Fixes PR8089 in a slightly different way than had been suggested. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113711 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-11Teach the EvaluatedExprVisitor and its client, which marksDouglas Gregor
declarations in potentially-evaluated subexpressions, about recursion. Fixes the release-mode self-host failure I introduced in r113700. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-11When parsing default function arguments, do not mark any declarationsDouglas Gregor
used in the default function argument as "used". Instead, when we actually use the default argument, make another pass over the expression to mark any used declarations as "used" at that point. This addresses two kinds of related problems: 1) We were marking some declarations "used" that shouldn't be, because we were marking them too eagerly. 2) We were failing to mark some declarations as "used" when we should, if the first time it was instantiated happened to be an unevaluated context, we wouldn't mark them again at a later point. I've also added a potentially-handy visitor class template EvaluatedExprVisitor, which only visits the potentially-evaluated subexpressions of an expression. I bet this would have been useful for noexcept... Fixes PR5810 and PR8127. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113700 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Support in-class initialization of static const floating-point data members.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113663 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Eli helped me understand how evaluation contexts work.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113642 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10CMake: Update to use standard CMake dependency tracking facilities insteadMichael J. Spencer
of whatever we were using before... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113631 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Define and implement CXXNoexceptExpr. Create it in Sema.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113623 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Parse the noexcept operator and stub out sema.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113622 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09property reference expression used on lhs of assignmentFariborz Jahanian
follows objective's semantics and is not overload'able with an assignment operator. Fixes a crash and a missing diagnostics. Radar 8379892. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113555 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09Teach libclang to walk the base and member initializers of aDouglas Gregor
constructor, in source order. Also introduces a new reference kind for class members, which is used here (for member initializers) and will also be used for designated initializers and offsetof. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113545 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09Simplify template instantiation for C++ exception declarations,Douglas Gregor
eliminating an unnecessary use of TemporaryBase in the process. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09Eliminate some unnecessary uses of TreeTransform::TemporaryBase. ThereDouglas Gregor
are still a few (legitimate, unfortunate) uses of this hack around, but at least now there are fewer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113498 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09Eliminate the comma locations from all of the Sema routines that dealDouglas Gregor
with comma-separated lists. We never actually used the comma locations, nor did we store them in the AST, but we did manage to waste time during template instantiation to produce fake locations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113495 91177308-0d34-0410-b5e6-96231b3b80d8
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