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3 Commits

Author SHA1 Message Date
Dan Zheng
bab23d8298 SILOptimizer: fix partial_apply optimization. (#31552) 
`partial_apply` can be rewritten to `thin_to_thick_function` only if the
specialized callee is `@convention(thin)`.

This condition is newly exercised by the differentiation transform:
`{JVP,VJP}Emitter::visitApplyInst` generates argument-less `partial_apply`
with `@convention(method)` callees.

Resolves SR-12732.
 2020-05-05 09:09:42 -07:00
Andrew Trick
2f1b21d64c Temporarily disable 3 AutoDiff tests: SR-12732 
https://bugs.swift.org/browse/SR-12732
3 AutoDiff test failures: crashing in SIL verification

Failing Tests (3):
06:26:12     Swift(macosx-x86_64) :: AutoDiff/validation-test/derivative_registration.swift
06:26:12     Swift(macosx-x86_64) :: AutoDiff/validation-test/custom_derivatives.swift
06:26:12     Swift(macosx-x86_64) :: AutoDiff/stdlib/derivative_customization.swift

Possibly from:

commit 738ef730e8
Author: Dan Zheng <danielzheng@google.com>
Date:   Mon May 4 00:44:48 2020 -0700

    [AutoDiff] Fix `@differentiable` attribute derivative configurations. (#31524)
 2020-05-04 14:34:51 -07:00
Dan Zheng
a864a57c9a [AutoDiff upstream] Add Differentiable.withDerivative(_:). (#30945) 
Add `Differentiable.withDerivative(_:)`, a "derivative surgery" API.

`Differentiable.withDerivative(_:)` is an identity function returning `self`.
It takes a closure and applies it to the derivative of the return value, in
contexts where the return value is differentiated with respect to.
 2020-04-10 12:22:56 -07:00