[all-commits] [llvm/llvm-project] 15692f: [LV] Fix 2nd crash for reverse interleaved groups ...

[azaks via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 15692fd6b54d28ec088b7bc9c9b445dc0f670ea9
      https://github.com/llvm/llvm-project/commit/15692fd6b54d28ec088b7bc9c9b445dc0f670ea9
  Author: Ayal Zaks <ayal.zaks at intel.com>
  Date:   2021-10-12 (Tue, 12 Oct 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/X86/x86-interleaved-accesses-masked-group.ll

  Log Message:
  -----------
  [LV] Fix 2nd crash for reverse interleaved groups under mask/fold-tail.

This patch fixes another crash revealed by PR51614:
when *deciding* to vectorize with masked interleave groups, check if the access
is reverse (which is currently not supported).

Differential Revision: https://reviews.llvm.org/D108900