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swift-mirror/test/AutoDiff/SIL
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
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