From owner-freebsd-current  Mon Nov  8 12:23:30 1999
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Date: Tue, 9 Nov 1999 07:23:15 +1100
From: Peter Jeremy <jeremyp@gsmx07.alcatel.com.au>
Subject: Re: show stopper for Gcc 2.95.2 conversion
In-reply-to: <199911081801.NAA29633@lor.watermarkgroup.com>
To: Luoqi Chen <luoqi@watermarkgroup.com>
Cc: freebsd-current@FreeBSD.ORG
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On 1999-Nov-09 05:01:43 +1100, Luoqi Chen wrote:
>> +                 "=D" (addr), "=c" (count)                   :
>> +                 "r" (bsh + offset), "0" (addr), "1" (count) : 
>> +                 "%eax", "memory");

>You may use "+D" and "+c" for the in-out operands,
>		    "+D" (addr), "+c" (count)			:
>		    "r" (bsh + offset)				:
>

Just as a word of caution:  "+" isn't supported prior to gcc 2.8.x,
so you can't use it for code that might be MFC to 3.x.  And just to
make it more of a pain, I've found code similar to the original
patch also fails on gcc 2.7 when the operands are volatile :-(.

Peter


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