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Date: Mon, 1 Apr 2013 10:58:50 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: Bug in dynamic (was: new warnings with gcc 4.8.0)

On 25 Mar, 2013, at 2:07 , magnum <john.magnum@...hmail.com> wrote:
> On 24 Mar, 2013, at 9:45 , Dhiru Kholia <dhiru.kholia@...il.com> wrote:
>> I tried to build unstable-jumbo with gcc 4.8.0 and got some new
>> warnings.
> 
>> dynamic_fmt.c: In function ‘init’:
>> dynamic_fmt.c:842:27: warning: iteration 8u invokes undefined behavior [-Waggressive-loop-optimizations]
>>    total_len2[i*MMX_COEF] = 32;
> 
> This one is an actual bug that must be fixed:
> 
> total_len2 is defined as [BLOCK_LOOPS] but in the loop it's used as if it were MMX_COEF*BLOCK_LOOPS. I'm not sure in what end it's wrong - Jim?

Jim has now fixed this. Please verify latest git with gcc 4.8.0.

magnum

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