MoveOnlyAddressChecker: More robust checking for consume-during-borrow. #74707
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- While an opaque borrow access occurs to part of a value, the entire scope of the access needs to be treated as a liveness range, so add the `EndAccess`es to the liveness range. - The SIL verifier may crash the compiler on SILGen-generated code when the developer's source contains consume-during-borrow code patterns. Allow `load_borrow` instructions to be marked `[unchecked]`, which suppresses verifier checks until the move checker runs and gets a chance to properly diagnose these errors. Fixes rdar://124360175.
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meg-gupta
reviewed
Jun 25, 2024
meg-gupta
approved these changes
Jun 25, 2024
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EndAccesses to the liveness range.load_borrowinstructions to be marked[unchecked], which suppresses verifier checks until the move checker runs and gets a chance to properly diagnose these errors.Fixes rdar://124360175.