lkml.org 
[lkml]   [2007]   [Feb]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: -freg-struct-return?
From
Date
On Wed, 2007-02-21 at 17:28 -0800, Jeremy Fitzhardinge wrote:
> We have a number of functions which return small structures (such as
> pte_t). It seems that the kernel is not compiled with
> -freg-struct-return, so all these small structures are being returned
> via the stack, even though they would fit into registers.
>
> Is there a reason for this? Would -freg-struct-return be preferred? It
> would make a good compliment to -mregparm.

Do we know how many gcc bugs this has? (regparm used to have many)
other than that.. sounds like a win...

--
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-02-22 09:07    [W:0.137 / U:3.160 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site