.global atan2f
.type atan2f,@function
atan2f:
        flds 4(%esp)
        flds 8(%esp)
        fpatan
        fsts 4(%esp)
        mov 4(%esp),%eax
        add %eax,%eax
        cmp $0x01000000,%eax
        jae 1f
                # subnormal x, return x with underflow
        fld %st(0)
        fmul %st(1)
        fstps 4(%esp)
1:      ret