This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] S/390: DFP support 1/4: Add z9-ec option
- From: "Ulrich Weigand" <uweigand at de dot ibm dot com>
- To: janis187 at us dot ibm dot com (Janis Johnson)
- Cc: Andreas dot Krebbel at de dot ibm dot com (Andreas Krebbel), bergner at vnet dot ibm dot com (Peter Bergner), gcc-patches at gcc dot gnu dot org, Ulrich dot Weigand at de dot ibm dot com, janis187 at us dot ibm dot com, bje at au1 dot ibm dot com
- Date: Tue, 27 Mar 2007 14:56:54 +0200 (CEST)
- Subject: Re: [PATCH] S/390: DFP support 1/4: Add z9-ec option
Janis Johnson wrote:
> The options -mdfp/-mno-dfp match existing options to enable or disable
> sets of hardware instructions.
I see, we don't really have much of those.
> If we weren't already using "dfp"
> informally in some cases to refer to the C extension for decimal
> floating point data types then there wouldn't be any confusion. We
> don't, however, seem to use "dfp" in any documentation.
What about -mhard-dfp vs. -mno-hard-dfp ? That would keep in line
with the instruction set option syntax, but still avoid the potentially
misleading -mno-dfp ...
Bye,
Ulrich
--
Dr. Ulrich Weigand
GNU Toolchain for Linux on System z and Cell BE
Ulrich.Weigand@de.ibm.com