30.09.2014 23:34, Sven Barth пишет:
On 30.09.2014 18:37, Lag Programming wrote:
1) "Unless a function calls another function, the function result
register will always be in rax. Calling for inlined functions doesn't
change this behaviour as it's not a real function call."
RAX will only then be used for the function result when it is really needed
(e.g. the last
assignment in a function).
To somewhat clarify: the reqirement is to place result into RAX at the function exit point. This is
unrelated to assignments to the 'result' variable in code.
> Before that the compiler might reuse RAX as it pleases.
Likewise, the value of 'result' may be placed into any register or even to
memory.
Regards,
Sergei
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