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[Diagnostics] Allow multiple non-custom _effects. #69769

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Merged
merged 1 commit into from
Nov 13, 2023

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nate-chandler
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Adjust SILFunctionBuilder to allow distinct non-custom effects and to interpret such "conflicting" guarantees to provide the strongest guarantee. For example, annotating a function both @_effects(readnone) and @_effects(releasenone) is equivalent to only annotating it @_effects(readnone).

First step to reapplying #68285 .

rdar://118216287

Adjust `SILFunctionBuilder` to allow distinct non-custom effects and to
interpret such "conflicting" guarantees to provide the strongest
guarantee. For example, annotating a function both `@_effects(readnone)`
and `@_effects(releasenone)` is equivalent to only annotating it
`@_effects(readnone)`.

First step to reapplying swiftlang#68285 .

rdar://118216287
@nate-chandler
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@swift-ci please test

@nate-chandler nate-chandler requested a review from atrick November 10, 2023 05:52
@nate-chandler
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@swift-ci please test windows platform

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Cool!

@nate-chandler nate-chandler merged commit 88b3c57 into swiftlang:main Nov 13, 2023
@nate-chandler nate-chandler deleted the rdar116877403 branch November 13, 2023 15:31
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2 participants