[5.7-04182022] IRGen: Use the current function name for the swift_suspend_point thunk #42482
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…pend_point thunk This is an incremental improvement of the debug info at a (hop_to_executor) suspend site. Before this patch the debug info at the call site would use the `__swift_suspend_point` function name as the current function after coro lowering has inlined the thunk. The proper fix is to rewire the debug info such that the thunk name is never mentioned rather the current function that suspend site sits in is used. Until I have figured out how to do that using the current function name instead of `__swift_suspend_point` for the thunk is an incremental improvement in the debug information consumers can observe. rdar://90859530 This is the same approach as we took for the await suspend points (vs. hop to executor in this patch) in the PR swiftlang#41645. Risk is very low, only a function name of a function that is guaranteed to be inlined during coroutine splitting is changed. Matching `main` PR: swiftlang#42454 Matching `release/5.7` PR: swiftlang#42481
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@swift-ci Please test |
tbkka
approved these changes
Apr 20, 2022
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@swift-ci Please test |
AnthonyLatsis
added
🍒 release cherry pick
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This is an incremental improvement of the debug info at a
(hop_to_executor) suspend site.
Before this patch the debug info at the call site would use the
__swift_suspend_pointfunction name as the current function aftercoro lowering has inlined the thunk.
The proper fix is to rewire the debug info such that the thunk name is
never mentioned rather the current function that suspend site sits in is
used.
Until I have figured out how to do that using the current function name
instead of
__swift_suspend_pointfor the thunk is an incrementalimprovement in the debug information consumers can observe.
rdar://90859530
This is the same approach as we took for the await suspend points (vs.
hop to executor in this patch) in the PR #41645.
Risk is very low, only a function name of a function that is guaranteed
to be inlined during coroutine splitting is changed.
Matching
mainPR: #42454Matching
release/5.7PR: #42481