[all-commits] [llvm/llvm-project] 3564c8: [RISCV] Eliminate dead li after emitting VSETVLIs ...

[Yingwei Zheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3564c85b0e3aece63b894fae5c833d261bcfb15f
      https://github.com/llvm/llvm-project/commit/3564c85b0e3aece63b894fae5c833d261bcfb15f
  Author: Yingwei Zheng <dtcxzyw2333 at gmail.com>
  Date:   2023-12-13 (Wed, 13 Dec 2023)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-gather.ll

  Log Message:
  -----------
  [RISCV] Eliminate dead li after emitting VSETVLIs (#65934)

This patch tracks li instructions that set AVL operands and does DCE
after emitting VSETVLIs.