Getting the name of a type seems like reasonable core runtime functionality, and something the runtime can cache on its side too. Have the function return a pointer to a raw string in memory owned by the runtime, and have it be wrappen in a Swift.String on the standard library side.
Move the ObjC internal declarations to a public runtime header so they can be shared, and rename _swift_deallocClassInstance to the more descriptive name swift_rootObjCDealloc (and make it only available with ObjC interop).
Set up a separate libSwiftStubs.a archive for C++ stub functionality that's needed by the standard library but not part of the core runtime interface. Seed it with the Stubs.cpp and LibcShims.cpp files, which consist only of stubs, though a few stubs are still strewn across the runtime code base.
some of the ARC entry points. rdar://22724641. After this commit,
swift_retain_noresult will be completely replaced by swift_retain.
LLVMARCOpts pass is modified NOT to rewrite swift_retain to
swift_retain_noresult which forward no reference.
Swift SVN r32082
After this commit, swift_retain will return no reference and LLVMARCContract pass is modified NOT to rewrite
swift_retain_noresult to old swift_retain which forwarded the reference.
Swift SVN r32075
I asked that the patches were split up so I could do post commit review.
This reverts commit r32059.
This reverts commit r32058.
This reverts commit r32056.
This reverts commit r32055.
Swift SVN r32060
to remove reference forwarding for some of the ARC entry points. rdar://22724641. After this
commit, swift_retain_noresult will be completely replaced by swift_retain and LLVMARCOpts.cpp
will no longer canonicalize swift_retain to swift_retain_noresult as now swift_retain returns no
reference.
Swift SVN r32058
to remove reference forwarding for some of the ARC entry points. rdar://22724641. After this
commit, swift_retain will be the same as swift_retain_noresult, returning no reference.
LLVMARCContract pass is also modified NOT to rewrite swift_retain_noresult to the
old swift_retain which forwards the reference.
Swift SVN r32055
Not every relative address makes sense to be conditionally indirect, so separate RelativeIndirectablePointer (which takes a tag bit to indicate whether the reference is directly to the object in question or to memory containing its address, such as its GOT entry) and RelativeDirectPointer. NFC.
Swift SVN r31839
By using relative references, either directly to symbols internal to the current TU, or to the GOT entry for external symbols, we avoid unnecessary runtime relocations, and we save space on 64-bit platforms, since a single image is still <2GB in size. For the 64-bit standard library, this trades 26KB of fake-const data in __DATA,__swift1_proto for 13KB of true-const data in __TEXT,__swift2_proto. Implements rdar://problem/22334380.
Swift SVN r31555
dealloc_ref [destructor] is the existing behavior. It expects the
reference count to have reached zero and the isDeallocating bit to
be set.
The new [constructor] variant first drops the initial strong
reference.
This allows DI to properly free uninitialized instances in
constructors. Previously this would fail with an assertion if the
runtime was built with debugging enabled.
Progress on <rdar://problem/21991742>.
Swift SVN r31142
This reverts commit r30215.
Fixes a bunch of problems on the ASAN bot.
Before:
Swift :: 1_stdlib/ErrorType.swift
Swift :: 1_stdlib/Runtime.swift
Swift :: Constraints/bridging.swift
Swift :: Constraints/diagnostics.swift
Swift :: Constraints/lvalues.swift
Swift :: DebugInfo/variables-repl.swift
Swift :: Interpreter/enum_runtime_alignment.swift
Swift :: Interpreter/nil_error_value.swift
Swift :: Interpreter/return_from_main.swift
Swift :: Misc/misc_diagnostics.swift
Swift :: Prototypes/Result.swift
Swift :: expr/expressions.swift
Swift-Unit :: runtime/SwiftRuntimeTests/MetadataTest.installCommonValueWitnesses_pod_indirect
After:
Swift :: Constraints/bridging.swift
Swift :: Constraints/diagnostics.swift
Swift :: Constraints/lvalues.swift
Swift :: Misc/misc_diagnostics.swift
Swift :: expr/expressions.swift
Swift-Unit :: runtime/SwiftRuntimeTests/MetadataTest.installCommonValueWitnesses_pod_indirect
Swift SVN r30396
Full type metadata isn't necessary to calculate the runtime layout of a dependent struct or enum; we only need the non-function data from the value witness table (size, alignment, extra inhabitant count, and POD/BT/etc. flags). This can be generated more efficiently than the type metadata for many types--if we know a specific instantiation is fixed-layout, we can regenerate the layout information, or if we know the type has the same layout as another well-known type, we can get the layout from a common value witness table. This breaks a deadlock in most (but not all) cases where a value type is recursive using classes or fixed-layout indirected structs like UnsafePointer. rdar://problem/19898165
This time, factor out the ObjC-dependent parts of the tests so they only run with ObjC interop.
Swift SVN r30266
Full type metadata isn't necessary to calculate the runtime layout of a dependent struct or enum; we only need the non-function data from the value witness table (size, alignment, extra inhabitant count, and POD/BT/etc. flags). This can be generated more efficiently than the type metadata for many types--if we know a specific instantiation is fixed-layout, we can regenerate the layout information, or if we know the type has the same layout as another well-known type, we can get the layout from a common value witness table. This breaks a deadlock in most (but not all) cases where a value type is recursive using classes or fixed-layout indirected structs like UnsafePointer. rdar://problem/19898165
Swift SVN r30243
This came up for multi-payload enums without generic parameters, eg
enum MyError {
case BusError
case TrainError(Int)
case DataLoss(String)
}
Fixes <rdar://problem/21739870>.
Swift SVN r30215
These will be used for reflection, and eventually to speed up generic
operations on single payload enums as well.
Progress on <rdar://problem/21739870>.
Swift SVN r30214
Leave the qualification off of enum cases and type names when 'print'-ing them, but keep them on 'debugPrint'. (At least, at the outermost level; since ad-hoc printing of structs and tuples uses debugPrint, we'll still get qualification at depth, which kind of sucks but needs more invasive state management in print to make possible.) Implements rdar://problem/21788604.
Swift SVN r30166
This nicely gathers all the layout information together in one contiguous bundle we can potentially emit independently for use in generic type layout. A step on the way to rdar://problem/19898165.
Swift SVN r30128
We incorrectly tested the uninitialized "next" pointer against MAP_FAILED, instead of the real result of mmap. Fixes rdar://problem/21659505.
Swift SVN r30030
Metatypes can't directly conform to _ObjectiveCBridgeable, but we can pretend they do by making a struct with the same ABI conform and returning that conformance when we call findBridgeWitness on a metatype. Fixes rdar://problem/16238475.
Swift SVN r29999
Builtin.Int128 and Builtin.Int256 already have the proper size and alignment for common vector types on our platform, and since they're opaque builtins, they only need placeholder metadata.
Swift SVN r29890
Provide new swift_{alloc,dealloc,project}Box2 entry points that allocate, project, and deallocate typed boxes using runtime-instantiated metadata. Give these a new metadata kind, so that external tools recognize the difference and can interpret the metadata appropriately.
Swift SVN r29714
