[llvm] [SLP]Exclude non-profitable subtrees. (PR #162018)

[Alexey Bataev via llvm-commits]

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alexey-bataev wrote:

Hi, I reverted the original patch as I was able to find the reproducer myself. Recommitted the patch with a fix, please check, if still crashes

https://github.com/llvm/llvm-project/pull/162018