analyze: move `Option<&mut T>` on last use instead of reborrowing#1179

Merged

spernsteiner merged 9 commits intomasterfrom

analyze-move-last-use

Dec 9, 2024

Commits on Dec 9, 2024

analyze: refactor rewrite mode parsing into a helper function
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analyze: add last_use analysis
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analyze: mir_op: refactor: use an enum for OptionDowngrade kind
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analyze: mir_op: move instead of borrowing Option<&mut T> when possible
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analyze: mir_op: moving out of DynOwned requires Mut access, not Move
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analyze: mir_op: avoid moving Option<&mut [T]> for `offset` calls
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analyze: last_use: comment about possible cases of 0/1/2+ last uses
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analyze: last_use: comment explaining last-use in terms of liveness
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analyze: mir_op: comment explaining SubLoc to WhichPlace conversion
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