Nits

Author: asl

include/swift/AST/ASTContext.h

@@ -1124,13 +1124,13 @@ class ASTContext final {
       AbstractFunctionDecl *originalAFD, unsigned previousGeneration,
       llvm::SetVector<AutoDiffConfig> &results);
 
-  /// Given `Optional<T>.TangentVector` type, retreive the
+  /// Given `Optional<T>.TangentVector` type, retrieve the
   /// `Optional<T>.TangentVector.init` declaration.
   ConstructorDecl *getOptionalTanInitDecl(CanType optionalTanType);
 
   /// Optional<T>.TangentVector is a struct with a single
   /// Optional<T.TangentVector> `value` property. This is an implementation
-  /// detail of OptionalDifferentiation.swift. Retreive `VarDecl` corresponding
+  /// detail of OptionalDifferentiation.swift. Retrieve `VarDecl` corresponding
   /// to this property.
   VarDecl *getOptionalTanValueDecl(CanType optionalTanType);
 

lib/SILGen/SILGenPoly.cpp

@@ -322,7 +322,7 @@ ManagedValue SILGenFunction::emitTangentVectorToOptionalTangentVector(
   args.add(loc, RValue(*this, {optVal}, optionalOfWrappedTanType));
 
   auto result = emitApplyAllocatingInitializer(loc, initDecl, std::move(args),
-                                               Type(), SGFContext());
+                                               Type(), ctxt);
   return std::move(result).getScalarValue();
 }
 
@@ -353,7 +353,7 @@ ManagedValue SILGenFunction::emitOptionalTangentVectorToTangentVector(
 
   return emitCheckedGetOptionalValueFrom(
       loc, std::move(wrappedVal).getScalarValue(),
-      /*isImplicitUnwrap*/ true, getTypeLowering(wrappedType), ctxt);
+      /*isImplicitUnwrap*/ true, getTypeLowering(optionalOfWrappedTanType), ctxt);
 }
 
 /// Apply this transformation to an arbitrary value.