[PATCH] D74912: [AArch64][SVE] Add SVE2 intrinsics for bit permutation & table lookup

[Kerry McLaughlin via Phabricator via cfe-commits]

kmclaughlin created this revision.
kmclaughlin added reviewers: sdesmalen, andwar, dancgr, cameron.mcinally, efriedma.
Herald added subscribers: psnobl, rkruppe, hiraditya, kristof.beyls, tschuett.
Herald added a reviewer: rengolin.
Herald added a project: LLVM.

Implements the following intrinsics:

- @llvm.aarch64.sve.bdep.x
- @llvm.aarch64.sve.bext.x
- @llvm.aarch64.sve.bgrp.x
- @llvm.aarch64.sve.tbl2
- @llvm.aarch64.sve.tbx

The SelectTableSVE2 function in this patch is used to select the TBL2
intrinsic & ensures that the vector registers allocated are consecutive.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D74912

Files:
  llvm/include/llvm/IR/IntrinsicsAArch64.td
  llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
  llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
  llvm/lib/Target/AArch64/SVEInstrFormats.td
  llvm/test/CodeGen/AArch64/sve2-intrinsics-bit-permutation.ll
  llvm/test/CodeGen/AArch64/sve2-intrinsics-perm-tb.ll

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