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Re: Fix some SSE2/x86_64 instruction patterns
- From: Andreas Jaeger <aj at suse dot de>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: binutils at sources dot redhat dot com, patches at x86-64 dot org
- Date: Thu, 07 Feb 2002 15:09:00 +0100
- Subject: Re: Fix some SSE2/x86_64 instruction patterns
- References: <20020125195907.GG17305@atrey.karlin.mff.cuni.cz><20020129053836.GB16187@bubble.sa.bigpond.net.au><20020207140516.GI23785@atrey.karlin.mff.cuni.cz>
Jan Hubicka <jh@suse.cz> writes:
>> On Fri, Jan 25, 2002 at 08:59:07PM +0100, Jan Hubicka wrote:
>> >
>> > * sse2.s (cvtps2dq, movdq2q, movq2dq): Correct operand types.
>> > * i386.h:
>> [snip]
>> > (cvtps2dq, movdq2q, movq2dq): Correct operand ordering.
>>
>> According to the Intel manual, these were correct. Please triple
>> check.
> ! cvtps2dq %xmm0, %mm1
> ! movdq2q %mm0, %xmm1
> ! movq2dq %xmm0, %mm1
>
> Hmm, I see, the Intel manual claims the opposite.
AFAIR the Intel manual was wrong in some places, this might be one of
them. But I agree, let's check again.
Andreas
> Is the patch OK w/o these three chagnes? I will re-check what exactly
> going on here.
>
> Honza
>
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj