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* [SUA][IRGen] Add stub for swift_coroFrameAlloc that weakly links against the runtime function
This commit modifies IRGen to emit a stub function `__swift_coroFrameAllocStub` instead of the
newly introduced swift-rt function `swift_coroFrameAlloc`. The stub checks whether the runtime has the symbol
`swift_coroFrameAlloc` and dispatches to it if it exists, uses `malloc` otherwise. This ensures the
ability to back deploy the feature to older OS targets.
rdar://145239850
(cherry picked from commit 5e2f20b2d8)
26 KiB
26 KiB