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Summary:
Introduce a new frontend flag `-fswift-async-fp={auto|always|never}`
that controls how code generation sets the Swift extended async frame
info bit. There are three possibilities:
* `auto`: the default, which determines how to set the bit based on
deployment target, either statically or dynamically via
`swift_async_extendedFramePointerFlags`.
* `always`: always set the bit statically, regardless of deployment
target.
* `never`: never set the bit, regardless of deployment target.
Differential Revision: https://reviews.llvm.org/D109451
Author
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@swift-ci test |
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