[all-commits] [llvm/llvm-project] 0e29a8: [RISCV] Add cost model for reverse shuffle

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0e29a80fdc5e436f1ab23f9d08f3716467108cbe
      https://github.com/llvm/llvm-project/commit/0e29a80fdc5e436f1ab23f9d08f3716467108cbe
  Author: Philip Reames <preames at rivosinc.com>
  Date:   2022-06-09 (Thu, 09 Jun 2022)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/RISCV/rvv-shuffle.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/riscv-vector-reverse.ll

  Log Message:
  -----------
  [RISCV] Add cost model for reverse shuffle

The majority of the cost appears to be forming the indices vector.

Differential Revision: https://reviews.llvm.org/D127141