[llvm] [GlobalISel] Move G_FREEZE above G_ICMP to enable further possible co… (PR #83448)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm commented:

Eventually we should add an MI version of isGuaranteedNotToBePoison and do the general freeze to operands fold 

https://github.com/llvm/llvm-project/pull/83448