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Re: [PATCH,rs6000] Add option to avoid generation of indexed load/store instructions
- From: Pat Haugen <pthaugen at us dot ibm dot com>
- To: Richard Guenther <richard dot guenther at gmail dot com>
- Cc: David Edelsohn <edelsohn at us dot ibm dot com>, gcc-patches at gcc dot gnu dot org
- Date: Sun, 25 Jan 2009 11:58:43 -0600
- Subject: Re: [PATCH,rs6000] Add option to avoid generation of indexed load/store instructions
Richard Guenther <richard.guenther@gmail.com> wrote on 01/25/2009 11:40:48
AM:
>
> The changelog (maybe also the patch) misses documentation for this
> new option. If this doesn't fix a regression you may want to delay this
> until stage1, but of course target maintainers can decide otherwise here.
>
This does fix performance regressions for the noted benchmarks on Power6
when compared with 4.1 based compilers.
I'll work on the documentation part.
-Pat