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Re: [PATCH 5/8] Enable max_issue for AArch32 and AArch64
- From: Sebastian Pop <sebpop at gmail dot com>
- To: Maxim Kuvyrkov <maxim dot kuvyrkov at linaro dot org>
- Cc: ramrad01 at arm dot com, Marcus Shawcroft <marcus dot shawcroft at arm dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Wed, 22 Oct 2014 22:42:07 +0000
- Subject: Re: [PATCH 5/8] Enable max_issue for AArch32 and AArch64
- Authentication-results: sourceware.org; auth=none
- References: <85433646-453C-4460-84DC-8C8738AB92EB at linaro dot org> <20141022182341 dot GA14480 at f1 dot c dot bardezibar dot internal>
Sebastian Pop wrote:
> Maxim Kuvyrkov wrote:
> > This change requires benchmarking, which I can't easily do at the moment. I
> > would appreciate any benchmarking results that you can share.
>
> I will run my testsuite on aarch64.
> Do you need the perf for all the previous patches 1 to 5 together, or just for patch 5?
I ran your patch 5 on top of r216539 at -O3 and there were not many differences
in performance, and of very little amplitude. Some small speedups, and some
small slowdowns. Let me know if you want a reduced testcase for the most
significative slowdown.
Sebastian