[PATCH] D151263: [RISCV] Expand rotate by non-constant for XTHeadBb during lowering.
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue May 23 15:09:39 PDT 2023
craig.topper created this revision.
craig.topper added reviewers: philipp.tomsich, JojoR.
Herald added subscribers: jobnoorman, luke, VincentWu, vkmr, frasercrmck, luismarques, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, jrtc27, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, hiraditya, arichardson.
Herald added a project: All.
craig.topper requested review of this revision.
Herald added subscribers: pcwang-thead, eopXD, MaskRay.
Herald added a project: LLVM.
Avoids multi instruction isel patterns and enables mask optimizations
on shift amount.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D151263
Files:
llvm/lib/Target/RISCV/RISCVISelLowering.cpp
llvm/lib/Target/RISCV/RISCVInstrInfoXTHead.td
llvm/test/CodeGen/RISCV/rotl-rotr.ll
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