Re: [PATCH] Cleanup asm constraints in atomic operations

From: John Baldwin <jhb_at_FreeBSD.org>
Date: Fri, 2 Sep 2005 15:42:20 -0400
On Friday 02 September 2005 03:32 pm, John Baldwin wrote:
> alc_at_ brought to my attention a while back that while gcc allows one to use
> the '+' constraint modifier to collapse identical input and output operands
> that are in registers, it is only allowed for registers and not for memory
> operands.  The patch below removes uses of the '+' modifier in conjunction
> with memory operands in the atomic operations for alpha, amd64, i386, and
> powerpc.  Please test and let me know if there are any regressions.

*sigh*

http://www.FreeBSD.org/~jhb/patches/atomic.patch

-- 
John Baldwin <jhb_at_FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org
Received on Fri Sep 02 2005 - 17:41:30 UTC

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