[PATCH] D122563: [RISCV] Add DAGCombine to fold base operation and reduction.

[Yeting Kuo via Phabricator via llvm-commits]

fakepaper56 added a comment.

Since we need to transform `VECREDUCE` to `VP_REDUCE` before legalization for Fraser's method, we need to deal with illegal type of `VECREDUCE`. If we don't have idea to deal with illegal type nodes of `VECREDUCE`, how about we just use my original combine?


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  https://reviews.llvm.org/D122563/new/

https://reviews.llvm.org/D122563