[all-commits] [llvm/llvm-project] a283d7: [x86] prevent crashing while matching pmaddwd

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  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a283d725836033f5d7626470506160b7bf6d9107
      https://github.com/llvm/llvm-project/commit/a283d725836033f5d7626470506160b7bf6d9107
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2021-03-27 (Sat, 27 Mar 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/madd.ll

  Log Message:
  -----------
  [x86] prevent crashing while matching pmaddwd

This could crash in 2 ways: either one or both of
the input vectors could be a different size than
the math ops.

https://llvm.org/PR49716