[all-commits] [llvm/llvm-project] 6e51ce: [AArch64][SVE] Add intrinsics for gather loads wit...

[sdesmalen-arm via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 6e51ceba536d88f882737c9c4f9ff0ffb0004bfd
      https://github.com/llvm/llvm-project/commit/6e51ceba536d88f882737c9c4f9ff0ffb0004bfd
  Author: Sander de Smalen <sander.desmalen at arm.com>
  Date:   2019-12-03 (Tue, 03 Dec 2019)

  Changed paths:
    M llvm/include/llvm/IR/IntrinsicsAArch64.td
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.h
    M llvm/lib/Target/AArch64/AArch64InstrFormats.td
    M llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
    M llvm/lib/Target/AArch64/SVEInstrFormats.td
    M llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.h
    A llvm/test/CodeGen/AArch64/sve-intrinsics-gather-loads-64bit-scaled-offset.ll
    A llvm/test/CodeGen/AArch64/sve-intrinsics-gather-loads-64bit-unscaled-offset.ll

  Log Message:
  -----------
  [AArch64][SVE] Add intrinsics for gather loads with 64-bit offsets

This patch adds the following intrinsics for gather loads with 64-bit offsets:
      * @llvm.aarch64.sve.ld1.gather (unscaled offset)
      * @llvm.aarch64.sve.ld1.gather.index (scaled offset)

These intrinsics map 1-1 to the following AArch64 instructions respectively (examples for half-words):
      * ld1h { z0.d }, p0/z, [x0, z0.d]
      * ld1h { z0.d }, p0/z, [x0, z0.d, lsl #1]

Committing on behalf of Andrzej Warzynski (andwar)

Reviewers: sdesmalen, huntergr, rovka, mgudim, dancgr, rengolin, efriedma

Reviewed By: efriedma

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70542