[PATCH] D138003: [RISCV] Refactor getDefaultVLOps. NFC.

[Han-Kuan Chen via Phabricator via llvm-commits]

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Current getDefaultVLOps can only deduce VL from a MVT. However,
sometimes users have already known VL value. This commit will provide a
uniform interface to get VL instead of calling DAG.getConstant.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D138003

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp

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