[all-commits] [llvm/llvm-project] ecf327: [RISCV] Add cost model for vector insert/extract e...

[Jianjian Guan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ecf327f1548e5933ff032bde488e45210cba9863
      https://github.com/llvm/llvm-project/commit/ecf327f1548e5933ff032bde488e45210cba9863
  Author: jacquesguan <Jianjian.Guan at streamcomputing.com>
  Date:   2022-09-14 (Wed, 14 Sep 2022)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h
    M llvm/test/Analysis/CostModel/RISCV/arith-fp.ll
    M llvm/test/Analysis/CostModel/RISCV/fixed-vector-gather.ll
    M llvm/test/Analysis/CostModel/RISCV/fixed-vector-scatter.ll
    M llvm/test/Analysis/CostModel/RISCV/fp-min-max-abs.ll
    M llvm/test/Analysis/CostModel/RISCV/fp-sqrt-pow.ll
    M llvm/test/Analysis/CostModel/RISCV/fp-trig-log-exp.ll
    M llvm/test/Analysis/CostModel/RISCV/fround.ll
    M llvm/test/Analysis/CostModel/RISCV/int-sat-math.ll
    M llvm/test/Analysis/CostModel/RISCV/masked_ldst.ll
    M llvm/test/Analysis/CostModel/RISCV/rvv-cmp.ll
    M llvm/test/Analysis/CostModel/RISCV/rvv-extractelement.ll
    M llvm/test/Analysis/CostModel/RISCV/rvv-insertelement.ll
    M llvm/test/Analysis/CostModel/RISCV/rvv-shuffle.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/uniform-load-store.ll

  Log Message:
  -----------
  [RISCV] Add cost model for vector insert/extract element.

This patch adds cost model for vector insert/extract element instructions. In RVV, we could use vector scalar move instruction to insert or extract the first element, and use vslide to move it. But for mask vector or i64 vector in i32 target, we need special instructions to make it.

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D133007