This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH][AArch64] Improve aarch64_case_values_threshold setting
- From: Wilco Dijkstra <Wilco dot Dijkstra at arm dot com>
- To: James Greenhalgh <James dot Greenhalgh at arm dot com>
- Cc: nd <nd at arm dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, "philipp dot tomsich at theobroma-systems dot com" <philipp dot tomsich at theobroma-systems dot com>, "benedikt dot huber at theobroma-systems dot com" <benedikt dot huber at theobroma-systems dot com>, "pinskia at gmail dot com" <pinskia at gmail dot com>, "jim dot wilson at linaro dot org" <jim dot wilson at linaro dot org>
- Date: Mon, 16 May 2016 13:41:30 +0000
- Subject: Re: [PATCH][AArch64] Improve aarch64_case_values_threshold setting
- Authentication-results: sourceware.org; auth=none
- Nodisclaimer: True
- References: <AM3PR08MB008846A786228571DC6E0731836F0 at AM3PR08MB0088 dot eurprd08 dot prod dot outlook dot com> <AM3PR08MB0088B30E6CF907BA2A29414B83770 at AM3PR08MB0088 dot eurprd08 dot prod dot outlook dot com>,<20160516113055 dot GB23900 at arm dot com>
- Spamdiagnosticmetadata: NSPM
- Spamdiagnosticoutput: 1:23
James Greenhalgh wrote:
> As this change will change code generation for all cores (except
> Exynos-M1), I'd like to hear from those with more detailed knowledge of
> ThunderX, X-Gene and qdf24xx before I take this patch.
>
> Let's give it another week or so for comments, and expand the CC list.
Note it affect Exynos-M1 as well with -O2.
>> GCC is ~1.2% faster on Cortex-A53 built for generic, but there is no
>> difference in perlbench.
>
> Where were these changes if not perlbench?
In the GCC test.
Wilco