[PATCH] D103896: [RISCV] Support CONCAT_VECTORS on scalable masks

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck created this revision.
frasercrmck added reviewers: craig.topper, evandro, HsiangKai, rogfer01, khchen, arcbbb.
Herald added subscribers: vkmr, luismarques, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, edward-jones, zzheng, jrtc27, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, hiraditya.
frasercrmck requested review of this revision.
Herald added subscribers: llvm-commits, MaskRay.
Herald added a project: LLVM.

This patch is a simple fix which registers CONCAT_VECTORS as
custom-lowered for scalable mask vectors. This follows the pattern of
all other scalable-vector types, as the default expansion of
CONCAT_VECTORS cannot handle scalable types, and even if it did it'd go
through the stack and generate worse code.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103896

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/rvv/setcc-fp-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/setcc-fp-rv64.ll
  llvm/test/CodeGen/RISCV/rvv/setcc-integer-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/setcc-integer-rv64.ll

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