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Re: [PATCH 01/10] rs6000: Clobber XER[CA] in all user asm statements
- From: Richard Henderson <rth at redhat dot com>
- To: David Edelsohn <dje dot gcc at gmail dot com>, Segher Boessenkool <segher at kernel dot crashing dot org>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Tue, 09 Dec 2014 13:48:54 -0800
- Subject: Re: [PATCH 01/10] rs6000: Clobber XER[CA] in all user asm statements
- Authentication-results: sourceware.org; auth=none
- References: <cover dot 1418024189 dot git dot segher at kernel dot crashing dot org> <7a4b7bd73211032ecf856de06a20e14a323e08ba dot 1418024189 dot git dot segher at kernel dot crashing dot org> <CAGWvny=Z58kvptktpdAMN50-e2nuDtv0=O-dJs7N6o6Pv0Vg2w at mail dot gmail dot com>
On 12/08/2014 06:25 AM, David Edelsohn wrote:
> Okay. I don't know of another option that preserves backward
> compatibility. If RTH looks at this series of patches, he may have a
> better suggestion.
No, this looks like what I'd do.
Indeed, I added this hook back when the i386 port gained direct
support for the flags register, so it's exactly what I did. ;-)
r~