Chris Lattner 6134231a78 [CSE] Ask DominanceInfo about "hasSSADominance" instead of reconstructing it. ...

I backed this off to make the previous patch easier to wrangle, but now
this is an efficient query and it is better to not replace it in CSE.

Differential Revision: https://reviews.llvm.org/D103494

2021-06-01 15:16:23 -07:00

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