[all-commits] [llvm/llvm-project] 8e3dc1: [AArch64] Concat zip1 and zip2 is a wider zip1

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8e3dc1366fb8365c4beb394ef2d34f1c639e8064
      https://github.com/llvm/llvm-project/commit/8e3dc1366fb8365c4beb394ef2d34f1c639e8064
  Author: David Green <david.green at arm.com>
  Date:   2023-02-18 (Sat, 18 Feb 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/arm64-zip.ll
    M llvm/test/CodeGen/AArch64/complex-deinterleaving-mixed-cases.ll
    M llvm/test/CodeGen/AArch64/complex-deinterleaving-uniform-cases.ll

  Log Message:
  -----------
  [AArch64] Concat zip1 and zip2 is a wider zip1

Given concat(zip1(a, b), zip2(a, b)), we can convert that to a 128bit zip1(a, b)
if we widen a and b out first.

Fixes #54226

Differential Revision: https://reviews.llvm.org/D121088