swift

f9ddecf4 - [AutoDiff] Mangle linear map self-reordering thunks and subset parameters thunks.

[AutoDiff] Mangle linear map self-reordering thunks and subset parameters thunks. Add the following new mangling rules. ``` global ::= from-type to-type 'TJO' AUTODIFF-FUNCTION-KIND // autodiff self-reordering reabstraction thunk global ::= from-type 'TJS' AUTODIFF-FUNCTION-KIND INDEX-SUBSET 'p' INDEX-SUBSET 'r' INDEX-SUBSET 'P' // autodiff linear map subset parameters thunk global ::= global to-type 'TJS' AUTODIFF-FUNCTION-KIND INDEX-SUBSET 'p' INDEX-SUBSET 'r' INDEX-SUBSET 'P' // autodiff derivative function subset parameters thunk ``` Example: ```console $s13TangentVector16_Differentiation14DifferentiablePQzAaDQy_SdAFIegnnnr_TJSdSSSpSrSUSP ---> autodiff subset parameters thunk for differential from @escaping @callee_guaranteed (@in_guaranteed A._Differentiation.Differentiable.TangentVector, @in_guaranteed B._Differentiation.Differentiable.TangentVector, @in_guaranteed Swift.Double) -> (@out B._Differentiation.Differentiable.TangentVector) with respect to parameters {0, 1, 2} and results {0} to parameters {0, 2} $sS2f8mangling3FooV13TangentVectorVIegydd_SfAESfIegydd_TJOp ---> autodiff self-reordering reabstraction thunk for pullback from @escaping @callee_guaranteed (@unowned Swift.Float) -> (@unowned Swift.Float, @unowned mangling.Foo.TangentVector) to @escaping @callee_guaranteed (@unowned Swift.Float) -> (@unowned mangling.Foo.TangentVector, @unowned Swift.Float) ``` Resolves rdar://72666310 / SR-13508. Also fix a bug in `AutoDiffFunction` mangling where the original may be a global that contains more than 1 node (rdar://74151229 / SR-14106).