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Re: [PATCH,i386] fma4 addition for bdver2
- From: Richard Henderson <rth at redhat dot com>
- To: "Gopalasubramanian, Ganesh" <Ganesh dot Gopalasubramanian at amd dot com>
- Cc: "Uros Bizjak (ubizjak at gmail dot com)" <ubizjak at gmail dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 10 Sep 2012 14:23:41 -0700
- Subject: Re: [PATCH,i386] fma4 addition for bdver2
- References: <EB4625145972F94C9680D8CADD6516152A3564F7@sausexdag02.amd.com>
On 09/09/2012 10:23 PM, Gopalasubramanian, Ganesh wrote:
> 2012-09-05 Ganesh Gopalasubramanian <Ganesh.Gopalasubramanian@amd.com>
>
> * config/i386/i386.md : Comments on fma4 instruction
> selection reflect requirement on register pressure based
> cost model.
>
> * config/i386/driver-i386.c (host_detect_local_cpu): fma4
> flag is set-reset as informed by the cpuid flag.
>
> * config/i386/i386.c (processor_alias_table): fma4
> flag is enabled for bdver2.
Ok.
r~