[AutoDiff] Minor @differentiable attribute type-checking fix.
#29477
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Use derivative canonical generic signature to get the derivative generic environment, not the other way around. Fixes `@differentiable` attribute SILGen assertion failures on `tensorflow` branch.
rxwei
approved these changes
Jan 27, 2020
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@swift-ci Please smoke test and merge |
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@dan-zheng could you please add a test case that would previous trigger the assertion? |
I actually cannot add tests on This PR just brings code in-sync with |
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Use derivative canonical generic signature to get the derivative generic
environment, not the other way around.
Fixes
@differentiableattribute SILGen assertion failures ontensorflowbranch. Exposed and fixed on
tensorflowbranch in #29347.