[PATCH] D103408: DetectDeadLanes: Remove assert for subregister defs

[Nemanja Ivanovic via Phabricator via llvm-commits]

nemanjai added a comment.

It certainly does sound odd to have a subreg on a **def** of a virtual register in SSA. We'll see where this is coming from and why but just a quick look at the `-print-after-all` output reveals that it is the peephole optimizer that produces it. We'll look into whether this is a bug in the peephole optimizer or if this is some PPC callback called from the peephole optimizer that does this.


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  https://reviews.llvm.org/D103408/new/

https://reviews.llvm.org/D103408