[PATCH] D157770: [RISCV][GISel] Make s32 a legal type for RV64 for any operation that has a W version.
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Aug 11 19:58:55 PDT 2023
craig.topper created this revision.
craig.topper added reviewers: nitinjohnraj, reames, asb, arsenm.
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, hiraditya, arichardson.
Herald added a project: All.
craig.topper requested review of this revision.
Herald added subscribers: wangpc, eopXD, MaskRay, wdng.
Herald added a project: LLVM.
My thought is that we can directly select W instructions using s32.
This will likely require combines and other optimizations eventually,
but this makes a simple starting point.
I'm slowly prototyping a similar approach for SelectionDAG.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D157770
Files:
llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-add.mir
llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-ashr.mir
llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-const.mir
llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-lshr.mir
llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-shl.mir
llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64/legalize-sub.mir
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D157770.549567.patch
Type: text/x-patch
Size: 13593 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230812/926806fb/attachment.bin>
More information about the llvm-commits
mailing list