ObjC classes don't have a deallocating destructor, so we can't call up to it in a class derived from an ObjC class. Hack SILGen not to emit a call to the superclass destructor of a class inherited from an ObjC class. This is the wrong thing, but it looks like destructors don't get hooked up to ObjC dealloc methods anyway yet, so what the Swift destructor of an ObjC-derived class does is moot right now. This lets us remove the guards from IRGen that prevented ObjC destructors from being emitted.
Swift SVN r4784
Teach SILGen how to emit the implicit elementwise constructor for structs and the implicit default constructor for classes, and eliminate the now dead IRGen code for them. Add a StructInst SIL instruction to represent constructing a loadable struct value from elements, analogous to TupleInst for tuples.
Swift SVN r4778
and supporting logic.
PathComponent and LValue are (apparently unnecessarily) kept alive by
projectPhysicalClassMemberAddress (rdar://13671033)
Swift SVN r4773
redefinition (or linkage type) bug that causes two tests to fail. I filed
rdar://13670581 to track this and am plowing forward, since they seem minor.
Swift SVN r4761
The argument to archetype_method can be a metatype, so allow that. While we're here, implement lowering for AssociatedMetatypeInst, and fix initial bringup of SIL-IRGen so that polymorphic arguments get emitted into the entry point BB instead of a random other BB.
Swift SVN r4741
When lowering SIL builtin ConstantRefs, just stash away the FuncDecl, and pass that decl on to a tweaked version of emitBuiltinCall when the constant is applied.
Swift SVN r4736
take a const ValueBase* instead of a SILValue, implement SILArgument
cases for a few visitors and opt others out explicitly, and assert
that classes in the SIL value hierarchy override their superclass's
classof.
Swift SVN r4705
ArchetypeMethodInst, like ProtocolMethodInst, actually needs to be modeled as returning a thick function type, in order to represent the metadata parameter to the witness table function. With that change to SILGen, implement ArchetypeMethodInst IRGen.
Swift SVN r4688
On second thought, having SILConstant be able to point to a TLCD is going
against the goal of making SILConstant be a "SILGen thing". I'll find another
approach.
Swift SVN r4680
Create a new FallthroughStmt, which transfers control from a 'case' or 'default' block to the next 'case' or 'default' block within a switch. Implement parsing and sema for FallthroughStmt, which syntactically consists of a single 'fallthrough' keyword. Sema verifies that 'fallthrough' actually appears inside a switch statement and that there is a following case or default block to pass control to.
SILGen/IRGen support forthcoming.
Swift SVN r4653
LLVM r179073 fixed PointerIntPair to work with an enum class as the IntType member, so we can kill some boilerplate in a few type implementations that were explicitly casting to unsigned to work around PointerIntPair's limitations.
Swift SVN r4652
+0.0 - ±0.0 == ±0.0, so the correct definition of '-x' is '-0.0 - x'. However, this would be infinitely recursive, so I added an 'fneg' builtin that lowers directly to 'fsub -0.0, %x', and redefined the unary - operators for floats in terms of it.
Swift SVN r4634
