3 Commits

Author	SHA1	Message	Date
Dan Zheng	d3b6b89de6	[AutoDiff] Support multiple differentiability result indices in SIL. (#32206) ... `DifferentiableFunctionInst` now stores result indices. `SILAutoDiffIndices` now stores result indices instead of a source index. `@differentiable` SIL function types may now have multiple differentiability result indices and `@noDerivative` resutls. `@differentiable` AST function types do not have `@noDerivative` results (yet), so this functionality is not exposed to users. Resolves TF-689 and TF-1256. Infrastructural support for TF-983: supporting differentiation of `apply` instructions with multiple active semantic results.	2020-06-05 16:25:17 -07:00
Dan Zheng	1308fc69c5	[AutoDiff] Simplify conditions enabling differentiable programming. (#30765) ... Previously, two conditions were necessary to enable differentiable programming: - Using the `-enable-experimental-differentiable-programming` frontend flag. - Importing the `_Differentiation` module. Importing the `_Differentiation` module is the true condition because it contains the required compiler-known `Differentiable` protocol. The frontend flag is redundant and cumbersome. Now, the frontend flag is removed. Importing `_Differentiation` is the only condition.	2020-04-02 03:24:03 -07:00
ematejska	75691d641e	[AutoDiff upstream] Add linear function SIL instructions (#30638) ... Add `linear_function` and `linear_function_extract` instructions. `linear_function` creates a `@differentiable(linear)` function-typed value from an original function operand and a transpose function operand (optional). `linear_function_extract` extracts either the original or transpose function value from a `@differentiable(linear)` function. Resolves TF-1142 and TF-1143.	2020-03-26 09:41:14 -07:00