[PATCH] D154136: [RISCV] Add SEW to RISCVInversePseudoTable

[Michael Maitland via Phabricator via llvm-commits]

michaelmaitland created this revision.
michaelmaitland added reviewers: craig.topper, reames, myhsu.
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.
michaelmaitland requested review of this revision.
Herald added subscribers: llvm-commits, wangpc, eopXD, MaskRay.
Herald added a project: LLVM.

Now that scheduler resources are split by SEW for some instructions,
add the ability to map (BaseInstr, LMUL, SEW) -> Pseudo. For
BaseInstrs that are not split by SEW, 0 is the default key.

This keeps the number of Pseudos the same and increases the
RISCVInversePseudoTable by `NumberOfPseudos * sizeof(SEW)`. This
table is only imported when llvm-mca is built, so if you don't build
llvm-mca, the size of PseudoTables does not change.

This change will be used in a future patch by llvm-mca to determine
the schedule class based off of SEW data, now that the scheduler
now accounts for SEW for some instructions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D154136

Files:
  llvm/lib/Target/RISCV/MCA/RISCVCustomBehaviour.cpp
  llvm/lib/Target/RISCV/RISCVInstrFormats.td
  llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D154136.535958.patch
Type: text/x-patch
Size: 9569 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230629/0da40df4/attachment.bin>