Joe Groff 5e2779b51e SIL: Uncurry function types within the Swift type system.
Remove uncurry level as a property of SILType/SILFunctionTypeInfo. During SIL type lowering, map a (Type, UncurryLevel) pair to a Swift CanType with the uncurried arguments as a Swift tuple. For example, T -> (U, V) -> W at uncurry level 1 becomes ((U, V), T) -> W--in reverse order to match the low-level calling convention. Update SILGen and IRGen all over the place for this representation change.

SILFunctionTypeInfo is still used in the SILType representation, but it's no longer load-bearing. Everything remaining in it can be derived from a Swift type.

This is an ABI break. Be sure to rebuild clean!

Swift SVN r5296
2013-05-24 01:51:07 +00:00
2013-03-29 03:17:15 +00:00
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