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Re: [Discuss-gnuradio] 3DNow fir test failing under debian with latest u
From: |
Krzysztof Kamieniecki |
Subject: |
Re: [Discuss-gnuradio] 3DNow fir test failing under debian with latest unstable updates |
Date: |
Mon, 22 Aug 2005 09:08:39 -0400 |
User-agent: |
Internet Messaging Program (IMP) 3.2.2 |
Quoting Eric Blossom <address@hidden>:
> On Mon, Aug 22, 2005 at 12:44:58AM -0400, Krzysztof Kamieniecki wrote:
> > Hello All,
> >
> > It seems like something may have broken in the 3Dnow fir code (on Debian
> > Unstable), it may be GNURadio or it may be GCC. Has anybody seen this?
> >
> >
> > SSE seems to be faster on this processor anyways, is there a recommended
> > way of selecting SSE over 3Dnow! ?
>
> The test code has an alignment problem under gcc 4.x (that we should fix...)
> When run within the normal gnu radio framework, the alignment
> constraint is met and the right answer is computed.
>
What would be the prefered way of fixing this, #pragma (which might cause
problems for anyone who does not use GCC), allocate some extra space and the
add a pointer to the proper aligned starting point (is there a library for this
somewhere?), or some other way?
<snip>