Nate Chandler 6cf2bb4151 [AllocBoxToStack] PAI frontier looks thru moves. ...

When determining where to destroy a captured alloc_box, the frontier of
the capturing partial_apply is computed.  Previously, that computation
just used the uses of the partial_apply.  If the partial_apply were
moved and the original destroyed before the apply, however, the result
would be a miscompile where the destroy_addr/dealloc_stack for the
alloc_stack to which the alloc_box was promoted was destroyed before the
apply of the closure which used the address.

2023-07-11 16:27:47 -07:00

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