[all-commits] [llvm/llvm-project] c141bd: [DAGCombiner] Support all-ones/all-zeros SPLAT_VEC...

[Fraser Cormack via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c141bd3cf96681399a1c234e78ca71c5a98c6f40
      https://github.com/llvm/llvm-project/commit/c141bd3cf96681399a1c234e78ca71c5a98c6f40
  Author: Fraser Cormack <fraser at codeplay.com>
  Date:   2021-04-21 (Wed, 21 Apr 2021)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/test/CodeGen/AArch64/sve-expand-div.ll
    M llvm/test/CodeGen/RISCV/rvv/vdiv-sdnode-rv32.ll
    M llvm/test/CodeGen/RISCV/rvv/vdiv-sdnode-rv64.ll
    M llvm/test/CodeGen/RISCV/rvv/vor-sdnode-rv32.ll
    M llvm/test/CodeGen/RISCV/rvv/vor-sdnode-rv64.ll
    M llvm/test/CodeGen/RISCV/rvv/vrem-sdnode-rv32.ll
    M llvm/test/CodeGen/RISCV/rvv/vrem-sdnode-rv64.ll
    M llvm/test/CodeGen/RISCV/rvv/vselect-fp-rv32.ll
    M llvm/test/CodeGen/RISCV/rvv/vselect-fp-rv64.ll
    M llvm/test/CodeGen/RISCV/rvv/vselect-int-rv32.ll
    M llvm/test/CodeGen/RISCV/rvv/vselect-int-rv64.ll

  Log Message:
  -----------
  [DAGCombiner] Support all-ones/all-zeros SPLAT_VECTOR in more combines

This patch adds incrementally-better support for SPLAT_VECTOR in a
handful of vector combines by changing a few more
isBuildVectorAllOnes/isBuildVectorAllZeros to the equivalent
isConstantSplatVectorAllOnes/Zeros calls.

Reviewed By: paulwalker-arm

Differential Revision: https://reviews.llvm.org/D100851