marcrasi 025cb9a501 autodiff builtins (#30624) ...

Define type signatures and SILGen for the following builtins:

```
/// Applies the {jvp|vjp} of `f` to `arg1`, ..., `argN`.
func applyDerivative_arityN_{jvp|vjp}(f, arg1, ..., argN) -> jvp/vjp return type

/// Applies the transpose of `f` to `arg`.
func applyTranspose_arityN(f, arg) -> transpose return type

/// Makes a differentiable function from the given `original`, `jvp`, and
/// `vjp` functions.
func differentiableFunction_arityN(original, jvp, vjp)

/// Makes a linear function from the given `original` and `transpose` functions.
func linearFunction_arityN(original, transpose)
```

Add SILGen FileCheck tests for all builtins.

2020-03-25 02:36:42 -07:00

94 KiB

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