[discuss] Re: CC register for x86-64 asm statements. Was: glibc: syscalls for x86-64

[Robert Dewar]

<<I'd be willing to bet beer that if you actually did the work
to track all of the flag bits individually on x86, you couldn't
measure a performance difference over the current scheme.
>>

There is a very good reason for INC/DEC not to affect the carry flag, and
most certainly the Realia COBOL compiler made important use of this fact.