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Re: __sync_bool_compare_and_swap

From: Daniel Jacobowitz <drow at false dot org>
To: Andrew Haley <aph at redhat dot com>
Cc: Magnus Fromreide <magfr at lysator dot liu dot se>, gcc at gcc dot gnu dot org
Date: Fri, 5 Jan 2007 12:20:58 -0500
Subject: Re: __sync_bool_compare_and_swap
References: <1168016239.15226.8.camel@localhost> <17822.34149.65400.515924@zebedee.pink>

On Fri, Jan 05, 2007 at 05:05:41PM +0000, Andrew Haley wrote:
> But it can't unless you use an architecture that has cmpxchgl.
> cmpxchgl is a 486 instruction; if you compile for 386, we have to
> generate the call because there is no such instruction.

And the older compiler was a Debian packaged one; Debian's compilers
default to generating code for a 486 or later.

-- 
Daniel Jacobowitz
CodeSourcery

References:
- __sync_bool_compare_and_swap
  - From: Magnus Fromreide
- Re: __sync_bool_compare_and_swap
  - From: Andrew Haley

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