[IRGen] Put 'ret void' instead of unreachable for non swiftasync cc #39680
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@swift-ci Please smoke test |
If target doesn't support musttail (e.g. WebAssembly), the function passed to coro.end.async can return control back to the caller. So the frontend should emit 'ret void' instead of unreachable after the coro.end.async intrinsic call to allow such situation.
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@swift-ci Please smoke test |
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@swift-ci please smoke test macOS platform |
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Gentle ping :) |
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@swift-ci please smoke test and merge |
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Actually, we shouldn't need the re-test here, since it's so isolated. |
compnerd
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The change in 39680 impacts more than WebAssembly, but it did not update the tests for impacted targets.
compnerd
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The change in 39680 impacts more than WebAssembly, but it did not update the tests for impacted targets. (cherry picked from commit 3df2531)
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If target doesn't support musttail (e.g. WebAssembly, it's available only under feature flag), the function passed to coro.end.async can return control back to the caller.
So the frontend should emit 'ret void' instead of unreachable after the coro.end.async intrinsic call to allow such situation.
Detail investigation report is here: swiftwasm#3646