[PATCH] D89166: Sink: Handle instruction sink when a user is dead

[Fangrui Song via Phabricator via llvm-commits]

MaskRay accepted this revision.
MaskRay added a comment.
This revision is now accepted and ready to land.

'unreachable' may be more appropriate than 'dead'.

Please mention that this fixes PR47415 ( https://bugs.llvm.org/show_bug.cgi?id=47415)

> In addition, if findNearestCommonDominator fails somehow, we bail out instruction sinking.

This sentence should be deleted.


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