================ @@ -1744,6 +1744,273 @@ a call to ``llvm.coro.suspend.retcon`` after resuming abnormally. In a yield-once coroutine, it is undefined behavior if the coroutine executes a call to ``llvm.coro.suspend.retcon`` after resuming in any way. +.. _coro.await.suspend: + +'llvm.coro.await.suspend' Intrinsic +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +:: + + declare void @llvm.coro.await.suspend( + ptr <awaiter>, + ptr <handle>, + ptr <await_suspend_function>) + +Overview: +""""""""" + +The '``llvm.coro.await.suspend``' intrinsic hides C++ `await-suspend` +block code from optimizations on presplit coroutine body +to avoid miscompilations. This version of intrinsic corresponds to +'``void awaiter.await_suspend(...)``' variant. ---------------- fpasserby wrote:
Added motivation (copied that comment almost verbatim) https://github.com/llvm/llvm-project/pull/79712 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
