[PATCH] D71363: [MIPS GlobalISel] Select bitreverse

[Petar Avramovic via Phabricator via llvm-commits]

Petar.Avramovic created this revision.
Petar.Avramovic added reviewers: atanasyan, petarj.
Herald added subscribers: llvm-commits, volkan, jrtc27, hiraditya, arichardson, rovka, sdardis.
Herald added a project: LLVM.
Petar.Avramovic added a parent revision: D71362: [MIPS GlobalISel] Select bswap.

G_BITREVERSE is generated from llvm.bitreverse.<type> intrinsics, clang
genrates these intrinsics from __builtin_bitreverse32 and
__builtin_bitreverse64.
Add lower and narrowscalar for G_BITREVERSE.
Lower G_BITREVERSE on MIPS32.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71363

Files:
  llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
  llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  llvm/lib/Target/Mips/MipsLegalizerInfo.cpp
  llvm/test/CodeGen/Mips/GlobalISel/legalizer/bitreverse.mir
  llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/bitreverse.ll

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