* Add all [differential operators](https://github.com/apple/swift/blob/master/docs/DifferentiableProgramming.md#list-of-differential-operators).
* Add `withoutDerivative(at:)`, used for efficiently stopping the derivative propagation at a value and causing the derivative at the value to be zero.
* Add utility `differentiableFunction(from:)`, used for creating a `@differentiable` function from an original function and a derivative function.
Mostly work done by @marcrasi and @dan-zheng.
Partially resolves TF-843.
TODO:
* Add `AnyDerivative`.
* Add `Array.differentiableMap(_:)` and `differentiableReduce(_:_:)`.
The directory currently seems to have a mix of
tests for import resolution and name lookup.
Therefore split it into two directories;
ImportResolution and NameLookup.
- In `simplifyConformsToConstraint`, pass the LHS
type regardless of whether it is a type variable.
- Add the `choiceImpact` onto the impact for
adding a stdlib conformance.
- Treat Any and AnyObject as standard library
types.
Previously we could skip default literal or
supertype bindings if we had already found a solution
with fixes, which could lead us to miss bindings
that produce better diagnostics.
Tweak the logic such that we continue exploring if
we're in diagnostic mode.
Resolves SR-12399.
* [Typechecker] Allow enum cases without payload to witness a static get-only property with Self type protocol requirement
* [SIL] Add support for payload cases as well
* [SILGen] Clean up comment
* [Typechecker] Re-enable some previously disabled witness matching code
Also properly handle the matching in some cases
* [Test] Update typechecker tests with payload enum test cases
* [Test] Update SILGen test
* [SIL] Add two FIXME's to address soon
* [SIL] Emit the enum case constructor unconditionally when an enum case is used as a witness
Also, tweak SILDeclRef::getLinkage to update the 'limit' to 'OnDemand' if we have an enum declaration
* [SILGen] Properly handle a enum witness in addMethodImplementation
Also remove a FIXME and code added to workaround the original bug
* [TBDGen] Handle enum case witness
* [Typechecker] Fix conflicts
* [Test] Fix tests
* [AST] Fix indentation in diagnostics def file
* [Diagnostics] Turn educational notes on-by-default
* [Diagnostics] Only include educational notes in printed output if -print-educational-notes is passed
* Make -print-educational-notes a driver option
* [Diagnostics] Issue a printed remark if educational notes are available, but disabled
* [docs] Update educational notes documentation and add a contributing guide
* [Diagnostics] Cleanup PrintingDiagnosticConsumer handling of edu notes
* Revert "[Diagnostics] Issue a printed remark if educational notes are available, but disabled"
For now, don't notify users if edu notes are available but disabled. This decision can be reevaluated later.
Add mangling scheme for `@differentiable` and `@differentiable(linear)` function
types. Mangling support is important for debug information, among other things.
Update docs and add tests.
Resolves TF-948.
The `@transpose` attribute registers a function as the transpose of another
function-like declaration: a `func`, `init`, `subscript`, or `var` computed
property declaration.
The `@transpose` attribute also has an optional `wrt:` clause specifying the
linearity parameters, i.e. the parameters that are transposed with respect to.
The linearity parameters must conform to the `Differentiable` protocol and
satisfy `Self == TangentVector`.
If the `wrt:` clause is unspecified, the linearity parameters are inferred to be
all parameters that conform to `Differentiable` and that satisfy
`Self == TangentVector`.
`@transpose` attribute type-checking verifies that the type of the transpose
function declaration is consistent with the type of the referenced original
declaration and the linearity parameters.
Resolves TF-830.
Query the SourceLookupCache for the operator decls,
and use ModuleDecl::getOperatorDecls for both
frontend stats and to clean up some code
completion logic.
In addition, this commit switches getPrecedenceGroups
over to querying SourceLookupCache.
Add `AdditiveArithmetic` derived conformances for structs and classes, gated by
the `-enable-experimental-differentiable-programming` flag.
Structs and classes whose stored properties all conform to `Differentiable` can
derive `Differentiable`:
- `associatedtype TangentVector: Differentiable & AdditiveArithmetic`
- Member `TangentVector` structs are synthesized whose stored properties are
all `var` stored properties that conform to `Differentiable` and that are
not `@noDerivative`.
- `mutating func move(along: TangentVector)`
The `@noDerivative` attribute may be declared on stored properties to opt out of
inclusion in synthesized `TangentVector` structs.
Some stored properties cannot be used in `TangentVector` struct synthesis and
are implicitly marked as `@noDerivative`, with a warning:
- `let` stored properties.
- These cannot be updated by `mutating func move(along: TangentVector)`.
- Non-`Differentiable`-conforming stored properties.
`@noDerivative` also implies `@_semantics("autodiff.nonvarying")`, which is
relevant for differentiable activity analysis.
Add type-checking and SILGen tests.
Resolves TF-845.
Add the `@differentiable` function conversion pipeline:
- New expressions that convert between `@differentiable`,
`@differentiable(linear)`, and non-`@differentiable` functions:
- `DifferentiableFunction`
- `LinearFunction`
- `DifferentiableFunctionExtractOriginal`
- `LinearFunctionExtractOriginal`
- `LinearToDifferentiableFunction`
- All the AST handling (e.g. printing) necessary for those expressions.
- SILGen for those expressions.
- CSApply code that inserts these expressions to implicitly convert between
the various function types.
- Sema tests for the implicit conversions.
- SILGen tests for the SILGen of these expressions.
Resolves TF-833.
module to contain only code necessary for testing the compiler
optimizations and diagnostics. This commit comprises the following changes:
1. Rename the OSLogPrototype module to OSLogTestHelper and rename the files.
2. Make the private module: OSLogTestHelper independent of os overlay.
3. Simplify the os log test suites and make them not perform logging.
4. Enable the os log test suites on all platforms.
<rdar://problem/60542172>
Add type checking for `@differentiable` function types:
- Check that parameters and results conform to `Differentiable`.
- Implicitly conform parameters and results whose types are generic parameters
to `Differentiable`.
- Upstream most of the differentiable_func_type_type_checking.swift test from
`tensorflow` branch. A few function conversion tests have not been added
because they depend on the `@differentiable` function conversion pipeline.
Diagnose gracefully when the `Differentiable` protocol is unavailable because
`_Differentiation` has not been imported.
Resolves TF-823 and TF-1219.
Checking for `-disable-availability-checking` in
`ConstraintSystem::isDeclUnavailable` caused a regression with
obsolete/introduced checking. Let's rely on
`DeclAttributes::isUnavailable` and `TypeChecker::isDeclAvailable`
to do the right thing instead.
Resolves: rdar://problem/60898369
This reverts commit f0cdd76f18, reversing
changes made to 703fe0f1a1.
Revert "IRGen: Refactor getObjCEncodingForMethod and getObjectEncodingFromClangNode into one"
This reverts commit 0082682b0d.
Revert "Merge pull request #30438 from aschwaighofer/irgen_prefer_clang_type_encoding"
This reverts commit eeb7fa52b2, reversing
changes made to 77af77fa8a.
Revert "Merge pull request #30433 from aschwaighofer/irgen_no_duplicate_objc_method_descriptor_entries"
This reverts commit 77af77fa8a, reversing
changes made to 841eeb05b0.
This reverts the changes for
rdar://60461850, rdar://60474785, rdar://60778637
There is still at least an issue that we address with PR#30654.
Revert until we have confidence that this is the right fix set.
