[PATCH] D129179: [RISCV] Extend use of SHXADD instructions in RVV spill/reload code.

[Jianjian Guan via Phabricator via llvm-commits]

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This patch extends D124824 <https://reviews.llvm.org/D124824>. It uses SHXADD+SLLI to emit 3, 5, or 9 multiplied by a power 2.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D129179

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
  llvm/test/CodeGen/RISCV/rvv/allocate-lmul-2-4-8.ll

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