[PATCH] D72361: [DAGCombiner] reduce extract subvector of concat

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

In D72361#1810243 <https://reviews.llvm.org/D72361#1810243>, @spatel wrote:

> Patch updated:
>  Made predicate more restrictive and added asserts.


Can a test case be constructed for that?

> (That case could be implemented as a shuffle, if we don't do that already)




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