[all-commits] [llvm/llvm-project] 98936a: [AArch64][SVE] Fix selection failure during loweri...

Bradley Smith via All-commits all-commits at lists.llvm.org
Thu Feb 10 04:08:09 PST 2022

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 98936aee7d41f9ae60dd06558fbbb1e6a4a89e17
  Author: Bradley Smith <bradley.smith at arm.com>
  Date:   2022-02-10 (Thu, 10 Feb 2022)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/sve-fixed-length-shuffles.ll

  Log Message:
  [AArch64][SVE] Fix selection failure during lowering of shuffle_vector

The lowering code for shuffle_vector has a code path that looks through
extract_subvector, this code path did not properly account for the
potential presense of larger than Neon vector types and could produce
unselectable DAG nodes.

Differential Revision: https://reviews.llvm.org/D119252

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