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path: root/lib/CodeGen/CGObjC.cpp
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2011-01-13Move name mangling support from CodeGen to AST. In thePeter Collingbourne
process, perform a number of refactorings: - Move MiscNameMangler member functions to MangleContext - Remove GlobalDecl dependency from MangleContext - Make MangleContext abstract and move Itanium/Microsoft functionality to their own classes/files - Implement ASTContext::createMangleContext and have CodeGen use it No (intended) functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123386 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-08Renamed CXXBaseOrMemberInitializer to CXXCtorInitializer. This is both shorter,Sean Hunt
more accurate, and makes it make sense for it to hold a delegating constructor call. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123084 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-07Rework a few things about how we emit ObjC's for enumeration statement.John McCall
In particular, the iteration variable (if present) should be created and destroyed in a narrow span around the loop body, and the body should be emitted in a cleanup scope in case it's not a compound statement. Otherwise, rename a few variables and use phis instead of temporary variables for the index and buffer count. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122988 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-26Add support for GNU runtime property set / get structure functions. Minor ↵David Chisnall
refactoring of Mac runtime (returns the same function for both, as the Mac runtimes currently only provide a single entry point for setting and getting struct properties, although this will presumably be fixed at some point). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122569 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-05Fix a bug in the emission of __real/__imag l-values on scalar operands.John McCall
Fix a bug in the emission of complex compound assignment l-values. Introduce a method to emit an expression whose value isn't relevant. Make that method evaluate its operand as an l-value if it is one. Fixes our volatile compliance in C++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120931 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04More anonymous struct/union redesign. This one deals with anonymous field ↵Francois Pichet
used in a constructor initializer list: struct X { X() : au_i1(123) {} union { int au_i1; float au_f1; }; }; clang will now deal with au_i1 explicitly as an IndirectFieldDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Test case for the l-value base only being evaluated once.John McCall
Also, move the l-value emission code into CGObjC.cpp and teach it, for completeness, to store away self for a super send. Also, inline the super cases for property gets and sets and make them use the correct result type for implicit getter/setter calls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120887 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Kill the KVC l-value kind and calculate the base expression when emittingJohn McCall
the l-value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120884 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Simplify the ASTs by consolidating ObjCImplicitGetterSetterExpr and ↵John McCall
ObjCPropertyRefExpr into the latter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120643 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Calculate the value kind of an expression when it's created andJohn McCall
store it on the expression node. Also store an "object kind", which distinguishes ordinary "addressed" l-values (like variable references and pointer dereferences) and bitfield, @property, and vector-component l-values. Currently we're not using these for much, but I aim to switch pretty much everything calculating l-valueness over to them. For now they shouldn't necessarily be trusted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119685 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Eliminate usage of ObjCSuperExpr used forFariborz Jahanian
'super' as receiver of property or a setter/getter methods. //rdar: //8525788 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116483 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
2010-09-10IRGen fix for using property-dot syntax to pass Fariborz Jahanian
reference object to a c++ member function. fixes radar 8409336. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113602 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25GCC didn't care for my attempt at API compatibility, so brute-force everythingJohn McCall
to the new constants. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25More incremental progress towards not including Expr.h in Sema.h.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112044 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Store inheritance paths after CastExprs instead of inside them.John McCall
This takes some trickery since CastExpr has subclasses (and indeed, is abstract). Also, smoosh the CastKind into the bitfield from Expr. Drops two words of storage from Expr in the common case of expressions which don't need inheritance paths. Avoids a separate allocation and another word of overhead in cases needing inheritance paths. Also has the advantage of not leaking memory, since destructors for AST nodes are never run. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24Return type of a setter call caused byFariborz Jahanian
use of property-dot syntax using 'super' as receiver is 'void'. This fixes a bug in generating correct API for setter call. Fixes radar 8203426. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Revise cleanup IR generation to fix a major bug with cleanups (PR7686)John McCall
as well as some significant asymptotic inefficiencies with threading multiple jumps through deep cleanups. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20Update ImplicitCastExpr to be able to represent an XValue.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108807 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06Validated by nightly-test runs on x86 and x86-64 darwin, including afterJohn McCall
self-host. Hopefully these results hold up on different platforms. I tried to keep the GNU ObjC runtime happy, but it's hard for me to test. Reimplement how clang generates IR for exceptions. Instead of creating new invoke destinations which sequentially chain to the previous destination, push a more semantic representation of *why* we need the cleanup/catch/filter behavior, then collect that information into a single landing pad upon request. Also reorganizes how normal cleanups (i.e. cleanups triggered by non-exceptional control flow) are generated, since it's actually fairly closely tied in with the former. Remove the need to track which cleanup scope a block is associated with. Document a lot of previously poorly-understood (by me, at least) behavior. The new framework implements the Horrible Hack (tm), which requires every landing pad to have a catch-all so that inlining will work. Clang no longer requires the Horrible Hack just to make exceptions flow correctly within a function, however. The HH is an unfortunate requirement of LLVM's EH IR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107631 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01Remove unnecessary ASTContext parameter fromDouglas Gregor
CXXRecordDecl::getDestructor(); no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107394 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-21Fix an Obj-C++ miscompile when calling an Obj-C method that returns a C++ ↵Anders Carlsson
reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106477 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-07When using property-dot assignment syntax to call a setter method,Fariborz Jahanian
type of rhs need be compared to setter's argument and not the getter type. Fixes radar 8062778 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105560 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-22Re-land the fix for PR7139.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104446 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-22Push a return-value slot throughout ObjC message-send codegen. Will beJohn McCall
critical for ObjC++ correctness; hard to test independently of various required Sema changes, though. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104422 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-21Unbreak self-host.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-21Rename CodeGenFunction::EmitMemSetToZero to EmitNullInitialization. Handle ↵Anders Carlsson
setting null data member pointers correctly. Fixes PR7139. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-21Allocate space in a block record for implicit references to the Objective CJohn McCall
'self' variable arising from uses of the 'super' keyword. Also reorganize some code so that BlockInfo (now CGBlockInfo) can be opaque outside of CGBlocks.cpp. Fixes rdar://problem/8010633. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104312 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-17Correctly generate IR for ObjC messages sends to protocol-qualified types.John McCall
Fixes rdar://problem/7992749 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103965 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Substantially alter the design of the Objective C type AST by introducingJohn McCall
ObjCObjectType, which is basically just a pair of one of {primitive-id, primitive-Class, user-defined @class} with a list of protocols. An ObjCObjectPointerType is therefore just a pointer which always points to one of these types (possibly sugared). ObjCInterfaceType is now just a kind of ObjCObjectType which happens to not carry any protocols. Alter a rather large number of use sites to use ObjCObjectType instead of ObjCInterfaceType. Store an ObjCInterfaceType as a pointer on the decl rather than hashing them in a FoldingSet. Remove some number of methods that are no longer used, at least after this patch. By simplifying ObjCObjectPointerType, we are now able to easily remove and apply pointers to Objective-C types, which is crucial for a certain kind of ObjC++ metaprogramming common in WebKit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Implement semantic analysis and an AST representation for the namedDouglas Gregor
return value optimization. Sema marks return statements with their NRVO candidates (which may or may not end up using the NRVO), then, at the end of a function body, computes and marks those variables that can be allocated into the return slot. I've checked this locally with some debugging statements (not committed), but there won't be any tests until CodeGen comes along. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103865 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06Code Gen support for Getter/Setter synthesis of Fariborz Jahanian
C++ object properties. (still radar 7468090). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103182 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06Clean up the {} and else placement. This fixes an ambiguous else as well asChandler Carruth
picking a more consistent pattern. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103142 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05This patch deals with Sema Part of Setter/Getter synthesisFariborz Jahanian
of properties which are of C++ objects. Code Gen to follow (Radar 7468090). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103123 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-04Fixes a code gen. crash when ivar object has trivial constructor.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103028 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-02Add the same 'ForVirtualBase' parameter to EmitCXXDestructorCall.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102882 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28Support for construct/destruct of ivar arrayFariborz Jahanian
of c++ objects (NeXt runtime). radar 7900343. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102546 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28IRGen for initialization/destruction ofFariborz Jahanian
ivar class objects (NeXt runtime). (radar 7900343). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102533 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28Changed signature of GenerateMessageSend() function to pass the ↵David Chisnall
ObjCInterfaceDecl for class messages and removed the boolean IsClassMessage argument, which wasn't used anywhere. Emitted some metadata on message sends to allow a later pass to do some speculative inlining of class methods (GNU runtime). Speculative inlining of instance methods requires type feedback to be useful (work in progress), but for class methods it works quite nicely. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102514 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24CastExpr should not hold a pointer to the base path. More cleanup.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23Add an InheritancePath parameter to the ImplicitCastExpr constructor.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22Suppress compiler warning.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102047 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
2010-04-13Removes a FIXME.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101161 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Variation of objc_copyStruct API generation whenFariborz Jahanian
property (atomic/nonatomic) is of aggregate type with gc'able member objects) (NeXT runtime). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Add support for objc_copyStruct to enforceFariborz Jahanian
atomicity of aggregate properties in setter/getter methods. wip. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101107 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10revert 100942, pending discussion.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100946 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10Fix for PR6811.David Chisnall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05Emit debug info for objc getters and setters.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100462 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30the big refactoring bits of PR3782.Rafael Espindola
This introduces FunctionType::ExtInfo to hold the calling convention and the noreturn attribute. The next patch will extend it to include the regparm attribute and fix the bug. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99920 91177308-0d34-0410-b5e6-96231b3b80d8
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