[all-commits] [llvm/llvm-project] 159b2d: [AArch64] Combine UADDVs to generate vector add

[Vinay Madhusudan via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 159b2d8e62b833c472be13f15d19e54cc9c69e70
      https://github.com/llvm/llvm-project/commit/159b2d8e62b833c472be13f15d19e54cc9c69e70
  Author: Vinay Madhusudan <vinay at compilertree.com>
  Date:   2020-10-15 (Thu, 15 Oct 2020)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/aarch64-addv.ll

  Log Message:
  -----------
  [AArch64] Combine UADDVs to generate vector add

ADD(UADDV a, UADDV b) --> UADDV(ADD a, b)

This partially solves the bug: https://bugs.llvm.org/show_bug.cgi?id=46888
Meta ticket: https://bugs.llvm.org/show_bug.cgi?id=46929

Differential Revision: https://reviews.llvm.org/D88731