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From: H. Peter Anvin on 13 Mar 2010 18:49
On 03/13/2010 03:12 AM, jacob navia wrote:
>
> I have never seen any compiler unde the Intel architecture that
> doesn't place the return value (when there is one of course, and
> when it fits 32 bits) in the EAX register.
>
> Can you name a compiler or a combination of compiler+flags
> that would place the return value in another register?

More importantly, this is the sort of thing that is guaranteed in an ABI
document -- specifically the handoff conditions that apply at
intermodule function call boundaries.

-hpa

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