Change over SIL Values and Instructions to work in terms of SILTypes, and update SILGen to lower types where needed. Add LValueType logic to SILType lowering to get rid of those annoying lvalue qualifiers so we can ignore RequalifyExprs. Tighten up the XFAILs in the SIL tests and disable the checks that currently crash.
Swift SVN r3538
ProjectExistential derives the value pointer from an existential, and AllocExistential initializes an existential's witness tables and allocates its value. Tweak SILGen's handling of ExistentialMemberRefExprs to emit a project_existential between querying the method and applying it.
Swift SVN r3508
Add instructions to represent type coercion and downcast conversion operations. Factor out a common ConversionInst base class for Convert and these instructions, and rename ConvertInst to ImplicitConvertInst to distinguish it from these new explicit conversion instructions.
Swift SVN r3490
- Steal some bits from SILConstant::id to reference getter and setter definitions, and normalize SILConstant references to property FuncDecls to be SILConstant references to the ValueDecl getter/setter instead.
- In normal expression context, handle getting properties by calling the getter and materializing the return value. Setting lvalues is not implemented yet; that will require borrowing the LValue and GenLValue machinery from irgen to construct logical lvalue paths in assignment and byref contexts.
Swift SVN r3414
Derives the address of a member from the address of a fragile value type. SIL extract : SIL element_addr :: LLVM extractvalue : LLVM getelementptr. Also add SILVerifier checks for ExtractInst and ElementAddrInst that they deal only in values and addresses, respectively.
Swift SVN r3391
We need something more general than ValueDecl to be able to talk about anonymous functions, curried entry points, etc. as SIL constants. SILConstant is a (ValueDecl | CapturingExpr) union with an additional index for discriminating multiple instances or entry points derived from the same AST entity. Update ConstantInst and SILModule's function table to be keyed by SILConstant rather than ValueDecl.
Swift SVN r3372
SIL needs a way to generate and reference getters and setters, which share a decl. Change SILModule to key its component Functions on a (ValueDecl, flags) pair rather than just on ValueDecl.
Swift SVN r3354
Add a toplevel Function object to SILModule. When SILGenModule encounters TopLevelCodeDecls, pass their bodies on to SILGenFunction to emit SIL into the toplevel function
Swift SVN r3336
Create a SILModule type, and lift ownership of TU-global things like the bump allocator and type list uniquing from Function to SILModule. Move the ad-hoc SIL dumping logic out of main() into SILModule and into a new SILGenModule class.
Swift SVN r3324
If an lvalue DeclRefExpr doesn't have a local VarLocs entry in the current SILGen function, assume it's a global variable and generate a constant_ref to get at its address. Eventually there should be a SILGenModule with which we can check that the global access is valid. Either ConstantRef should be renamed or a new GlobalVarRef instruction should be added as well.
Swift SVN r3319
Remove the AllocTmp instruction and represent MaterializeExpr allocations using 'alloc_var stack'/'dealloc_var stack' instructions. Rename Dealloc to DeallocVar, and add an AllocKind attribute to AllocVar and DeallocVar. Update MaterializeExpr SILGen to generate an AllocVar with a DeallocVar cleanup instead of AllocTmp. Tweak SILPrinter's presentation of AllocVar and DeallocVar to be in line with what SIL.rst claims.
Swift SVN r3311
Now that it's being used on both tuples and structs, the current name doesn't make much sense. SIL.rst specifies a unified set of extract/insert/gep instructions that operate on either tuples or nominal fragile structs.
Swift SVN r3303
return values. Now the base class of the value hierarchy is "ValueBase"
instead of "Value", and "Value" is now a PointerIntPair indicating the
ValueBase (e.g. an instruction) being referenced along with what result
value is being referenced.
By default, any place you used "Value*" before, you should now use "Value".
Swift SVN r3207
Add RetainInst, ReleaseInst, DeallocInst for managing object lifetimes, and CopyInst and DestroyInst for indirectly managing resilient types and other non-materializable types.
Swift SVN r3159
