[llvm] [ARM] Stop gluing ALU nodes to branches / selects (PR #116970)

[Sergei Barannikov via llvm-commits]

s-barannikov wrote:

Thank you,
The diff between the generated assembly files is not very big, so I might be able to figure out what's wrong without reducing the test further.

https://github.com/llvm/llvm-project/pull/116970