Re: [RFC] [PATCH v3 0/8] [i386] Use out-of-line stubs for ms_abi pro/epilogues

[JonY <10walls@gmail.com>]

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On 02/10/2017 10:32 AM, Uros Bizjak wrote:
> On Tue, Feb 7, 2017 at 7:38 PM, Daniel Santos <daniel.santos@pobox.com> wrote:
> 
>> Uros or Jan,
>> Please take this as a ping, as I never bothered pinging after submitting v2
>> since I found a few more issues with it. :) Although I realize this would be
>> a GCC 8 stage 1 item, I would like to try to get it finished up and
>> tentatively approved as soon as I can.  I have tried to summarize this patch
>> set as clearly and succinctly below as possible.  Thanks!
> 
> You will need a sign-off from cygwin od mingw-w64 maintainer (CC'd).
> While I can review the patch in the sense that it won't break generic
> code, I don't know nothing about mingw-64 to give you any meaningful
> advice.
> 
> Uros.
> 

Hi,

Thanks for the code size reduction patch, I have a few questions:

1. How does code compiled with -moutline-msabi-xlogues interact with
older code compiled without it? Are these only called on ABI transition?

2. Does this mean code compiled with -moutline-msabi-xlogues is not
usable with older GCC? (no a problem, just something to note).

3. Is the old behavior (emit inline code) still default?

mingw-w64 itself does not use any ms_abi/sysv_abi marked functions
internally, so it should be unaffected. I don't think Cygwin uses any
either, but I need to double check.



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