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Re: [PATCH 2/5] support: don't pass to resolv_test_start a big struct by value
On Mär 25 2019, Florian Weimer <fw@deneb.enyo.de> wrote:
> With the pointer-to-struct argument, you need to write the temporary
> object to the stack and pass its address.
>
> With the struct argument, you need to write the temporary object to
> the stack, in the form of an argument list.
>
> The second case avoids computing and passing the address of the
> temporary object.
On the other hand, the second case requires more complex parameter
setup, when the argument is passed partially in registers.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
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