[all-commits] [llvm/llvm-project] 46fa21: [RISCV] Lower splats of non-constant i1s as SETCCs

[Fraser Cormack via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 46fa214a6f24549d83a69793b7e14585c2eefa2b
      https://github.com/llvm/llvm-project/commit/46fa214a6f24549d83a69793b7e14585c2eefa2b
  Author: Fraser Cormack <fraser at codeplay.com>
  Date:   2021-05-04 (Tue, 04 May 2021)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
    M llvm/lib/Target/RISCV/RISCVISelLowering.h
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-mask-splat.ll
    M llvm/test/CodeGen/RISCV/rvv/vsplats-i1.ll

  Log Message:
  -----------
  [RISCV] Lower splats of non-constant i1s as SETCCs

This patch adds support for splatting i1 types to fixed-length or
scalable vector types. It does so by lowering the operation to a SETCC
of the equivalent i8 type.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D101465