[all-commits] [llvm/llvm-project] 48a23b: [VectorCombine] limit load+insert transform to one...

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  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 48a23bccf3732e1480ad169bd4a08a68bb100bfa
      https://github.com/llvm/llvm-project/commit/48a23bccf3732e1480ad169bd4a08a68bb100bfa
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2020-09-17 (Thu, 17 Sep 2020)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VectorCombine.cpp
    M llvm/test/Transforms/VectorCombine/X86/load.ll

  Log Message:
  -----------
  [VectorCombine] limit load+insert transform to one-use

As discussed in:
https://llvm.org/PR47558
...there are several potential fixes/follow-ups visible
in the test case, but this is the quickest and safest
fix of the perf regression.