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Re: [rfc] atomic memory operation builtins

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: Richard Henderson <rth at redhat dot com>
Cc: gcc-patches at gcc dot gnu dot org, Ulrich Weigand <uweigand at de dot ibm dot com>
Date: Sat, 9 Apr 2005 20:17:45 -0400
Subject: Re: [rfc] atomic memory operation builtins
References: <20050408220513.GA11088@redhat.com> <200504092103.j39L392Z008232@53v30g15.boeblingen.de.ibm.com> <20050409233046.GA20267@redhat.com>

On Apr 9, 2005, at 7:30 PM, Richard Henderson wrote:

On Sat, Apr 09, 2005 at 11:03:08PM +0200, Ulrich Weigand wrote:
I have two concerns with implementing s390 back end support:
- We only have compare-and-swap instructions for SImode and DImode,
  not for HImode or QImode.
- The compare-and-swap insns require that their memory argument
  is naturally aligned, or else they throw an exception.
As for ia64.


And PPC (which is different than any other instruction on PPC, well
maybe not the floating ones).

Thanks,
Andrew Pinski

References:
- [rfc] atomic memory operation builtins
  - From: Richard Henderson
- Re: [rfc] atomic memory operation builtins
  - From: Ulrich Weigand
- Re: [rfc] atomic memory operation builtins
  - From: Richard Henderson

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