MIPS 5kc backend - single issue or limited dual issue

[Cherry Vanc]

According to the SPEC, The 5kc MIPS64 processor has a limited dual
issue pipeline. However, the file comment header of 5k.md file in
gcc/config/mips folder :

;; 5Kc - Single issue with no floating point unit.
;; 5kf - Separate floating point pipe which can dual-issue with the
;;       integer pipe.

So the 5kc is being implemented as a single issue pipeline and not a
limited dual issue ? The generated code also seems to be for a
single-issue pipeline.

Is this true that the 5k implementation is a single-issue pipeline indeed ?
Thanks