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Date: Tue, 07 Jul 2015 19:10:56 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: Re: AltiVec troubleshooting
On 2015-07-07 16:46, Lei Zhang wrote:
>> On Jul 7, 2015, at 9:48 PM, Lei Zhang <zhanglei.april@...il.com> wrote:
>>
>> The generated code for vcmov obviously doesn't match its definition (missing an xor operation). This looks really weird to me. Do you think it's a bug in gcc (4.9.2)?
>
> Well, I managed to reproduce the same error with icc on my laptop. This time it becomes:
>
> v = (vtype)_mm_xor_si128((z).v32, ((vtype)_mm_and_si128((x).v32, (x).v32)).v32);
>
> So it's not likely to be a compiler bug. I think I'm kind of trapped with the use of macros here.
Well, you have a bug in your code :-)
On 2015-07-07 15:48, Lei Zhang wrote:
> #define vand(x, y) (vtype)vec_and((x).v32, (x).v32)
this should be
#define vand(x, y) (vtype)vec_and((x).v32, (y).v32)
magnum
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