[all-commits] [llvm/llvm-project] 836421: [coro] [async] There needs to be a one-to-one core...

[Arnold Schwaighofer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 836421ad52585d4247ba22e0fd01265d2beef33a
      https://github.com/llvm/llvm-project/commit/836421ad52585d4247ba22e0fd01265d2beef33a
  Author: Arnold Schwaighofer <aschwaighofer at apple.com>
  Date:   2026-03-13 (Fri, 13 Mar 2026)

  Changed paths:
    M llvm/include/llvm/IR/Intrinsics.td
    A llvm/test/Transforms/Coroutines/coro-async-noduplicate.ll

  Log Message:
  -----------
  [coro] [async] There needs to be a one-to-one corespondance between the async resume function value and the suspend intrinsic (#186436)

We need to mark both the async.resume intrinsic function and the
supsend.async function as not duplicatable. The async.resume function
models the continuation after a suspend. It is non sense to not have a
one-to-one correspondance between the two: if the suspend intrinsic is
cloned so needs to be the matching async.resume intrinsic call.

rdar://172130181
https://github.com/swiftlang/swift/issues/87719



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