[llvm-branch-commits] [llvm] release/23.x: [SLP]Fix narrow-tree gate width and extract miscount (PR #217569)

[Douglas Yung via llvm-branch-commits]

dyung wrote:

Before accepting this change in the release branch, I would like to hear what regressions @alexey-bataev suspects it is causing.

https://github.com/llvm/llvm-project/pull/217569