[semantic-arc-opts] Teach the pass how to eliminate copies from begin… #26898
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…_borrow, load_borrow where all users can accept a guaranteed parameter. I previously implemented this only for functions so I didn't need to use the linear lifetime checker to determine if all destroys where within the lifetime of the borrowed value. That was just to be incremental. In this commit, I unleash the whole optimization.
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@swift-ci smoke test and merge |
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…_borrow, load_borrow where all users can accept a guaranteed parameter.
I previously implemented this only for functions so I didn't need to use the
linear lifetime checker to determine if all destroys where within the lifetime
of the borrowed value. That was just to be incremental. In this commit, I
unleash the whole optimization.