C.hs:7:11: warning: [-Winline-rule-shadowing (in -Wdefault)]
    Rule "f/g" may never fire because ‘f’ might inline first
    Probable fix: add an INLINE[n] or NOINLINE[n] pragma for ‘f’

C.hs:7:11: warning: [-Winline-rule-shadowing (in -Wdefault)]
    Rule "f/g" may never fire because ‘g’ might inline first
    Probable fix: add an INLINE[n] or NOINLINE[n] pragma for ‘g’