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2010-04-21Migrate the responsibility for turning the receiver name in anDouglas Gregor
Objective-C class message expression into a type from the parser (which was doing so in two places) to Action::getObjCMessageKind() which, in the case of Sema, reduces the number of name lookups we need to perform. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102026 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Diagnose access to fields with private constructors.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102025 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Eliminate unused code in Sema::ActOnSuperMessage and use early exitsDouglas Gregor
to reduce nesting. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102022 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Rework the Parser-Sema interaction for Objective-C messageDouglas Gregor
sends. Major changes include: - Expanded the interface from two actions (ActOnInstanceMessage, ActOnClassMessage), where ActOnClassMessage also handled sends to "super" by checking whether the identifier was "super", to three actions (ActOnInstanceMessage, ActOnClassMessage, ActOnSuperMessage). Code completion has the same changes. - The parser now resolves the type to which we are sending a class message, so ActOnClassMessage now accepts a TypeTy* (rather than an IdentifierInfo *). This opens the door to more interesting types (for Objective-C++ support). - Split ActOnInstanceMessage and ActOnClassMessage into parser action functions (with their original names) and semantic functions (BuildInstanceMessage and BuildClassMessage, respectively). At present, this split is onyl used by ActOnSuperMessage, which decides which kind of super message it has and forwards to the appropriate Build*Message. In the future, Build*Message will be used by template instantiation. - Use getObjCMessageKind() within the disambiguation of Objective-C message sends vs. array designators. Two notes about substandard bits in this patch: - There is some redundancy in the code in ParseObjCMessageExpr and ParseInitializerWithPotentialDesignator; this will be addressed shortly by centralizing the mapping from identifiers to type names for the message receiver. - There is some #if 0'd code that won't likely ever be used---it handles the use of 'super' in methods whose class does not have a superclass---but could be used to model GCC's behavior more closely. This code will die in my next check-in, but I want it in Subversion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102021 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Keep tack of whether a base in an InitializedEntity is an inherited virtual ↵Anders Carlsson
base or not. Use this in CheckConstructorAccess. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102020 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21ABI/x86-32 & x86-64: Alignment on 'byval' must be set when when the alignmentDaniel Dunbar
exceeds the minimum ABI alignment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102019 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21IRgen/x86-32: Factor out getIndirectResult(), to match x86-64 factoring.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102015 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21IRgen: Add checking that the LLVM and AST record layout offsets agree (forDaniel Dunbar
non-bit-fields). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102014 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Improve on source location of diagnostic when defaultFariborz Jahanian
property synthesis is using a super class ivar. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102011 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Pass the InitializedEntity to Sema::CheckConstructorAccess and use it to ↵Anders Carlsson
report different diagnostics depending on which entity is being initialized. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102010 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Comment out an assert for now.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102007 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21I failed to notice that my last patch wasn't doing as much as it couldJohn McCall
because EmitBranch actually clears the insert point. This version actually accomplishes what I initially wanted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101998 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Teach EmitBlock to put the target block immediately after the current blockJohn McCall
(if there's a current block). The chief advantage of doing this is that it lets us pick blocks (e.g. EH blocks) to push to the end of the function so that fallthrough happens consistently --- i.e. it gives us the flexibility of ordering blocks as we please without having to change the order in which we generate code. There are standard (?) optimization passes which can do some of that for us, but better to generate reasonable code to begin with. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101997 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Miscellaneous codegen cleanups. Mostly, don't create new basic blocksJohn McCall
just to save the current insertion state! This change significantly simplifies the IR CFG in exceptions code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101996 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21CXXNamedCastExpr is actually an abstract expression.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Sink the _GNU_SOURCE definition down into the target configuration,Douglas Gregor
and only define it where we know we need it---Linux and Cygwin. Thanks to Chris for the prodding. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101989 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Use the right predecessor.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Add initial support for C++ delete expr.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Overhaul the AST representation of Objective-C message sendDouglas Gregor
expressions, to improve source-location information, clarify the actual receiver of the message, and pave the way for proper C++ support. The ObjCMessageExpr node represents four different kinds of message sends in a single AST node: 1) Send to a object instance described by an expression (e.g., [x method:5]) 2) Send to a class described by the class name (e.g., [NSString method:5]) 3) Send to a superclass class (e.g, [super method:5] in class method) 4) Send to a superclass instance (e.g., [super method:5] in instance method) Previously these four cases where tangled together. Now, they have more distinct representations. Specific changes: 1) Unchanged; the object instance is represented by an Expr*. 2) Previously stored the ObjCInterfaceDecl* referring to the class receiving the message. Now stores a TypeSourceInfo* so that we know how the class was spelled. This both maintains typedef information and opens the door for more complicated C++ types (e.g., dependent types). There was an alternative, unused representation of these sends by naming the class via an IdentifierInfo *. In practice, we either had an ObjCInterfaceDecl *, from which we would get the IdentifierInfo *, or we fell into the case below... 3) Previously represented by a class message whose IdentifierInfo * referred to "super". Sema and CodeGen would use isStr("super") to determine if they had a send to super. Now represented as a "class super" send, where we have both the location of the "super" keyword and the ObjCInterfaceDecl* of the superclass we're targetting (statically). 4) Previously represented by an instance message whose receiver is a an ObjCSuperExpr, which Sema and CodeGen would check for via isa<ObjCSuperExpr>(). Now represented as an "instance super" send, where we have both the location of the "super" keyword and the ObjCInterfaceDecl* of the superclass we're targetting (statically). Note that ObjCSuperExpr only has one remaining use in the AST, which is for "super.prop" references. The new representation of ObjCMessageExpr is 2 pointers smaller than the old one, since it combines more storage. It also eliminates a leak when we loaded message-send expressions from a precompiled header. The representation also feels much cleaner to me; comments welcome! This patch attempts to maintain the same semantics we previously had with Objective-C message sends. In several places, there are massive changes that boil down to simply replacing a nested-if structure such as: if (message has a receiver expression) { // instance message if (isa<ObjCSuperExpr>(...)) { // send to super } else { // send to an object } } else { // class message if (name->isStr("super")) { // class send to super } else { // send to class } } with a switch switch (E->getReceiverKind()) { case ObjCMessageExpr::SuperInstance: ... case ObjCMessageExpr::Instance: ... case ObjCMessageExpr::SuperClass: ... case ObjCMessageExpr::Class:... } There are quite a few places (particularly in the checkers) where send-to-super is effectively ignored. I've placed FIXMEs in most of them, and attempted to address send-to-super in a reasonable way. This could use some review. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101972 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Remove an unused parameter from isImplicitlyDefined.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Fix comment to reflect recent code change.John Thompson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101960 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Specify linkage for Objective-C declarations.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101953 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Factor some common code out into a separate function.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101952 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Fixes a code gen. bug by removing an assert.Fariborz Jahanian
It is ok to have c++-ness inside extern "C" block. Fixes pr6644. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101948 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20fix the ?: fixit that ted added to recover properly.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101943 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Fix crash on invalid code where a @throw statement is not followed by a ';'Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101941 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20change FullSourceLoc to have a *const* SourceManager&, eliminatingChris Lattner
a const_cast. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101940 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20push some source location information down through the compiler,Chris Lattner
into ContentCache::getBuffer. This allows it to produce diagnostics on the broken #include line instead of without a location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Patch to support transparent_union types onFariborz Jahanian
objective-c methods. Fixes radar 7875968. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101935 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20enhance sourcemgr to detect various UTF BOM's and emit a fatal errorChris Lattner
about it instead of producing tons of garbage from the lexer. It would be even better for sourcemgr to dynamically transcode (e.g. from UTF16 -> UTF8). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101924 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Back out r101911 and see if it makes the bots happy.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101921 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Remove dead code.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20IRgen: Always use i8 arrays to access union bit-fields. This is ugly, butDaniel Dunbar
matches how we currently handle structs, and this correctly handles -fno-bitfield-type-align. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101918 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20remove some extraneous qualifiers.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Fix a bug which triggered the assertion I added yesterday. Basically, when ↵Anders Carlsson
we initialize the vtable pointer for a virtual base, and there was another path from the most derived class to another base with the same class type, we would use the wrong base. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Move code to apply a non-virtual and virtual offset out into a separate ↵Anders Carlsson
function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101909 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Keep proper source location information for the type in an Objective-CDouglas Gregor
@encode expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101907 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Introduce a limit on the depth of the template instantiation backtraceDouglas Gregor
we will print with each error that occurs during template instantiation. When the backtrace is longer than that, we will print N/2 of the innermost backtrace entries and N/2 of the outermost backtrace entries, then skip the middle entries with a note such as: note: suppressed 2 template instantiation contexts; use -ftemplate-backtrace-limit=N to change the number of template instantiation entries shown This should eliminate some excessively long backtraces that aren't providing any value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101882 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20don't slap noalias attribute on stret result arguments.Chris Lattner
This mirror's Dan's patch for llvm-gcc in r97989, and fixes the miscompilation in PR6525. There is some contention over whether this is the right thing to do, but it is the conservative answer and demonstrably fixes a miscompilation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101877 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Replace code with a method call. No functionality change.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101876 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Pass the nearest virtual base decl to InitializeVTablePointers. No ↵Anders Carlsson
functionality change right now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101872 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20reapply john's patch, he broke mainline again by changing the test.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101871 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Assert that the path from the derived to the base class in ↵Anders Carlsson
CodeGenFunction::GetAddressOfBaseClass is not ambiguous. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Use GetState() to get the possible cleaned state.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20revert r101863, whcih is causing Sema/altivec-init.c to fail on a tonChris Lattner
of buildbots with: error: 'error' diagnostics expected but not seen: Line 9: too few elements in vector initialization (expected 8 elements, have 2) 1 warning and 1 error generated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101864 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Altivec vector literal initializer count mismatch error removed.John Thompson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101863 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Improve handling of CXXNewExpr.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101862 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Restore r101841 without modification. Also mark 'operator delete' as used forJohn McCall
actual delete expressions, not just new expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101861 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Revert r101841 and follow-up.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101859 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Don't bother looking for (or diagnosing problems with) the 'operator delete'John McCall
associated with a new expression if -fno-exceptions is set. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101841 91177308-0d34-0410-b5e6-96231b3b80d8