[all-commits] [llvm/llvm-project] e5c892: [SVE][SelectionDAG] Use INDEX to generate matching...

[paulwalker-arm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e5c892dd85be611396fc77a6b3fcf04493d5b586
      https://github.com/llvm/llvm-project/commit/e5c892dd85be611396fc77a6b3fcf04493d5b586
  Author: Paul Walker <paul.walker at arm.com>
  Date:   2022-07-26 (Tue, 26 Jul 2022)

  Changed paths:
    M llvm/include/llvm/CodeGen/SelectionDAGNodes.h
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    A llvm/test/CodeGen/AArch64/sve-fixed-length-addressing-modes.ll
    A llvm/test/CodeGen/AArch64/sve-fixed-length-build-vector.ll

  Log Message:
  -----------
  [SVE][SelectionDAG] Use INDEX to generate matching instances of BUILD_VECTOR.

This patch starts small, only detecting sequences of the form
<a, a+n, a+2n, a+3n, ...> where a and n are ConstantSDNodes.

Differential Revision: https://reviews.llvm.org/D125194