
function   role       insns  loop spans  calls
old_const  baseline   2      -           -
new_const  candidate  2      -           ldexpf
           delta      0      -           +ldexpf

old_const                                        | new_const
-------------------------------------------------+-------------------------------------------------
mulss   .LC0(%rip), %xmm0                        | movl    $-5, %edi
ret                                              | jmp     ldexpf@PLT
