[PATCH] D103510: [RISCV] Use vmv.v.[v|i] if we know COPY is under the same vl and vtype.

[Hsiangkai Wang via Phabricator via llvm-commits]

HsiangKai updated this revision to Diff 349804.
HsiangKai added a comment.

Consider vsetvli x0, x0, vtype.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D103510/new/

https://reviews.llvm.org/D103510

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
  llvm/test/CodeGen/RISCV/rvv/calling-conv-fastcc.ll
  llvm/test/CodeGen/RISCV/rvv/calling-conv.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-calling-conv-fastcc.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-calling-conv.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fp-shuffles.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-int-shuffles.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-int.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-gather.ll
  llvm/test/CodeGen/RISCV/rvv/mgather-sdnode.ll
  llvm/test/CodeGen/RISCV/rvv/named-vector-shuffle-reverse.ll
  llvm/test/CodeGen/RISCV/rvv/rv32-spill-zvlsseg.ll
  llvm/test/CodeGen/RISCV/rvv/rv64-spill-zvlsseg.ll
  llvm/test/CodeGen/RISCV/rvv/unsupported-calling-conv.ll
  llvm/test/CodeGen/RISCV/rvv/vexts-sdnode-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vexts-sdnode-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-f-f-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-f-f-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-f-x-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-f-x-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-f-xu-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-f-xu-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-rod-f-f-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-rod-f-f-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-rtz-x-f-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-rtz-x-f-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-rtz-xu-f-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-rtz-xu-f-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-x-f-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-x-f-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-xu-f-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfncvt-xu-f-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vfptoi-sdnode.ll
  llvm/test/CodeGen/RISCV/rvv/vfptrunc-sdnode.ll
  llvm/test/CodeGen/RISCV/rvv/vfslide1up-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vfslide1up-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vitofp-sdnode.ll
  llvm/test/CodeGen/RISCV/rvv/vloxei-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vloxei-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vloxseg-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vloxseg-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vlseg-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vlseg-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vlsseg-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vlsseg-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vluxei-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vluxei-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vluxseg-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vluxseg-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vmadc.carry.in-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vmadc.carry.in-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vmsbc.borrow.in-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vmsbc.borrow.in-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vmsbf-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vmsbf-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vmsif-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vmsif-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vmsof-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vmsof-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vmv-copy.mir
  llvm/test/CodeGen/RISCV/rvv/vnclip-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vnclip-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vnclipu-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vnclipu-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vnsra-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vnsra-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vnsrl-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vnsrl-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vrgather-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vrgather-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vrgatherei16-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vrgatherei16-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vsext-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vsext-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vslide1up-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vslide1up-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vtruncs-sdnode-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vtruncs-sdnode-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/vzext-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vzext-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/zvlsseg-zero-vl.ll