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[WIP] MIR Move up propagation #34585
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @pnkfelix (or someone else) soon. If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes. Please see the contribution instructions for more information. |
This PR assumes #34556 lands |
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fn any_funny_business(ldef: &UseDefLocation, |
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funny name for a function
I made a new PR for an implementation without post dominators: #34693. Probably we should close this PR and discuss in the new PR? |
Yes, let's close this one. |
This is a work-in-progress minimum-viable-product version of move up propagation for Mir.
At a high level the idea is to transform:
Into:
The current implementation does not manipulate the MIR CFG so it doesn't invalidate previous CFG analyses.