[PATCH] D106494: WIP: [AArch64][GlobalISel] Legalize ctpop s128

[Jon Roelofs via Phabricator via llvm-commits]

jroelofs created this revision.
jroelofs added reviewers: aemerson, paquette.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls, rovka.
jroelofs requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Marking as "WIP" because the code generated for the zext i32 -> i128 is less than ideal, which reflects poorly on ctpop 256.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D106494

Files:
  llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-ctpop.mir
  llvm/test/CodeGen/AArch64/popcount.ll

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