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Re: Problems with inline assembler in gcc-3.2

From: Richard Henderson <rth at redhat dot com>
To: Richard dot Earnshaw at arm dot com
Cc: Jaimon Jose <jjaimon at yahoo dot com>, gcc-bugs at gcc dot gnu dot org
Date: Thu, 31 Oct 2002 08:58:01 -0800
Subject: Re: Problems with inline assembler in gcc-3.2
References: <20021025232529.GF8103@redhat.com> <200210311128.g9VBS2311339@pc960.cambridge.arm.com>

On Thu, Oct 31, 2002 at 11:28:01AM +0000, Richard Earnshaw wrote:
> 	__asm__ __volatile__(
> 		"lock; incl %0"
> 		:"+m" (*p));

No, that expands to the same thing.  OTOH, using

	"=m" (*p) : "m" (*p)

should work, and is probably the preferred solution.


r~

References:
- Re: Problems with inline assembler in gcc-3.2
  - From: Richard Henderson
- Re: Problems with inline assembler in gcc-3.2
  - From: Richard Earnshaw

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