[all-commits] [llvm/llvm-project] e2b65f: [RISCV] Use tail agnostic if inserting subvector/e...

[Yeting Kuo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e2b65ff98d690a3a380385c68ea696a93b9b2e7f
      https://github.com/llvm/llvm-project/commit/e2b65ff98d690a3a380385c68ea696a93b9b2e7f
  Author: Yeting Kuo <yeting.kuo at sifive.com>
  Date:   2022-12-31 (Sat, 31 Dec 2022)

  Changed paths:
    M llvm/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.h
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/test/CodeGen/RISCV/fpclamptosat_vec.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vector-shuffle-reverse.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-extract.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fp-shuffles.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-insert-i1.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-insert.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-int-buildvec.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-int-shuffles.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-int.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-mask-buildvec.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-gather.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-scatter.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-unaligned.ll
    M llvm/test/CodeGen/RISCV/rvv/vector-splice.ll
    M llvm/test/CodeGen/RISCV/shuffle-reverse.ll

  Log Message:
  -----------
  [RISCV] Use tail agnostic if inserting subvector/element at the end of a vector.

The patch tries to make more vslidup nodes use tail agnostic. The idea comes
from D125546 authored by Zack Chen.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D140669