https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105373
--- Comment #12 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Avi Kivity from comment #8) > Hoping this is a duplicate of PR105287. Checking. I doubt it, it would seem more likely that the temporary value representing the non-coroutine lambda object is not being promoted to a frame copy. The additional tightening of constraints in the PR105287 fix (which I've now made a patch to back out of) could well be the cause of the earlier fails you now see.