[Mem2Reg] Omit lexical moves for lexical values. #65022
Merged
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When promoting an
alloc_stack [lexical]
that is "owned" (i.e. not a store_borrow location), omit lexical lifetimes (represented withmove_value [lexical]
instructions) if the value being stored is already lexical. Such moves are redundant.rdar://99160718