[PATCH] D133319: [Assignment Tracking][22/*] Add loop-deletion test

[Jeremy Morse via Phabricator via llvm-commits]

jmorse added a comment.

(One wonders why the dbg.values get set to undef when the sunk store still retains a value -- possibly the PHI put in by lcssa gets RAUW'd but the source value doesn't? This raises the possibility that scenarios like this might benefit from forward salvaging, i.e. "we know this value is dead, but something using it isn't, so re-point the dbg intrinsics at that).


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  https://reviews.llvm.org/D133319/new/

https://reviews.llvm.org/D133319