[llvm-branch-commits] [llvm] release/18.x: [X86] Fix miscompile in combineShiftRightArithmetic (PR #86728)

[Phoebe Wang via llvm-branch-commits]

phoebewang wrote:

> @phoebewang What do you think about backporting this?

I didn't review on it. Maybe @topperc can evaluate it.

https://github.com/llvm/llvm-project/pull/86728