[PATCH] D157120: [RISCV] Use v(f)slide1down for build_vector with dominant values

[Philip Reames via Phabricator via llvm-commits]

reames added a comment.

FYI, I inverted the dependence on the vmerge change, and landed this since it was approved.  All of the tests are updated to reflect that in the committed version.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D157120/new/

https://reviews.llvm.org/D157120