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Date: Tue, 8 Sep 2015 22:11:22 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: Large stack alignment

On 2015-09-08 21:45, magnum wrote:
> All this is exactly what we've seen so far IRL in Jumbo. All problems
> we've had was aligned declarations local to a parallel for.
>
> Also, I do not see *any* problem using gcc-4.9.2 (only OSX tested as of
> yet). I'll dig into their list of changes (but I already googled this so
> much it would be strange if I missed it).
>
> I'll do some more tests on various systems and compilers. Jim, please
> test under Cygwin and, if possible, under MinGW64. Several google hits
> indicate problem is (or was) worse under MinGW64.

gcc 4.4, 4.5 and 4.6 (bull) shows the same problems and same workaround 
(using function).
gcc 4.4.7 (super) shows the same problems and same workaround (using 
function).
gcc 4.8.3 (well) shows the same problems and same workarounds (function 
or vtype).
gcc 4.9.1 (super) shows the same problems and same workarounds.

This indicates the problem was fixed between 4.9.1 and 4.9.2.

The only thing I find in changes between 4.9.1 and 4.9.2 is 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63530 (in case this is a 
variant of the problem).

magnum

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