[all-commits] [llvm/llvm-project] 350247: [AArch64] Rearrange mul(dup(sext/zext)) to mul(sex...

[NickGuy-Arm via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 350247a93c07906300b79955ff882004a92ae368
      https://github.com/llvm/llvm-project/commit/350247a93c07906300b79955ff882004a92ae368
  Author: Nicholas Guy <nicholas.guy at arm.com>
  Date:   2021-01-06 (Wed, 06 Jan 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    A llvm/test/CodeGen/AArch64/aarch64-dup-ext-scalable.ll
    A llvm/test/CodeGen/AArch64/aarch64-dup-ext.ll

  Log Message:
  -----------
  [AArch64] Rearrange mul(dup(sext/zext)) to mul(sext/zext(dup))

Performing this rearrangement allows for existing patterns
to match cases where the vector may be built after an extend,
instead of before.

Differential Revision: https://reviews.llvm.org/D91255