[llvm] [X86][GlobalISel] Fix referencing nonexistent operand in G_ICMP (PR #86221)

[Craig Topper via llvm-commits]

topperc wrote:

@AtariDreams GlobalISel is still very much in development for X86. Why do you think this needs to be backported?

https://github.com/llvm/llvm-project/pull/86221