search for: i64_cmp_before_isel

Good day LLVM-Dev, I hope all are in good health. We are currently implementing the compare operation for i64 type in our target. The main difference of the i64 type compare to lower integer types is that it performs a library call instead of generating a compare instruction. All is good until before ISelDAGToDAG class. We have observed that the difference in a compare operation for i32 and