[llvm-branch-commits] [llvm] release/21.x: [SelectOptimize] Fix incorrect -1 immediate for large integers (#170860) (PR #171596)

[Nikita Popov via llvm-branch-commits]

nikic wrote:

Yeah, probably the cost modelling changed in the mean time. I re-reduced this on LLVM 21 and updated the test case to us it. It's less nice but shows the issue does exist on LLVM 21 as well.

https://github.com/llvm/llvm-project/pull/171596