[PATCH] D113022: [RISCV] Optimize vp.load with an all-ones mask

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck created this revision.
frasercrmck added reviewers: craig.topper, rogfer01.
Herald added subscribers: VincentWu, luke957, achieveartificialintelligence, vkmr, evandro, 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.

Similar to D110206 <https://reviews.llvm.org/D110206>, this patch optimizes unmasked vp.load intrinsics to
avoid the need of a vmset instruction to set the mask. It does so by
selecting a riscv_vle intrinsic rather than a riscv_vle_mask intrinsic.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113022

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-vpload.ll
  llvm/test/CodeGen/RISCV/rvv/vpload.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D113022.384103.patch
Type: text/x-patch
Size: 10771 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20211102/a110b2e1/attachment.bin>