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Re: [PATCH] Missing Skylake -march=/-mtune= option
- From: Richard Biener <richard dot guenther at gmail dot com>
- To: Uros Bizjak <ubizjak at gmail dot com>
- Cc: Yuri Rumyantsev <ysrumyan at gmail dot com>, gcc-patches <gcc-patches at gcc dot gnu dot org>, Igor Zamyatin <izamyatin at gmail dot com>, ÐÐÑÑ ÐÐÐÐÐÐÑ <enkovich dot gnu at gmail dot com>
- Date: Wed, 19 Aug 2015 13:19:05 +0200
- Subject: Re: [PATCH] Missing Skylake -march=/-mtune= option
- Authentication-results: sourceware.org; auth=none
- References: <CAEoMCqSAJ1P8XwVAe0w4=+HsnPyShD-kSpbsxHxgBMjFS7UtDw at mail dot gmail dot com> <CAFULd4a87MB1EOPHPP9DVNTCY1E5ZiqFupZDgmLDJ-nmpt9SLA at mail dot gmail dot com> <CAFiYyc1_ENBM+Z=itFgF61dV9-PbXsh0ja=v4pc3r+NpzKsgxg at mail dot gmail dot com> <CAFULd4bnXjWZZQDtfAWEufgvDyZwi1H9yDFj5DOyt44AktyeEg at mail dot gmail dot com>
On Wed, Aug 19, 2015 at 12:47 PM, Uros Bizjak <ubizjak@gmail.com> wrote:
> On Wed, Aug 19, 2015 at 12:39 PM, Richard Biener
> <richard.guenther@gmail.com> wrote:
>> On Thu, Aug 13, 2015 at 9:57 PM, Uros Bizjak <ubizjak@gmail.com> wrote:
>>> On Thu, Aug 13, 2015 at 11:31 AM, Yuri Rumyantsev <ysrumyan@gmail.com> wrote:
>>>> Hi All,
>>>>
>>>> Here is patch for adding march/mtune options for Skylake.
>>>>
>>>> Bootstrap and regression testing did not show any new failures.
>>>>
>>>> Is it OK for trunk?
>>>
>>> OK.
>>
>> I think this causes
>>
>> FAIL: g++.dg/ext/mv16.C -std=gnu++98 execution test
>> FAIL: g++.dg/ext/mv16.C -std=gnu++11 execution test
>> FAIL: g++.dg/ext/mv16.C -std=gnu++14 execution test
>>
>> for me. Possibly __builtin_cpu_is is not working for skylake?
>
> No, a relevant entry has to be added to the testcase. But a real
> skylake is needed to test the patch.
Hmm, so it doesn't fall back to 'default' for skylake? Anyway, I'll
ignore the execute fail then for now until you sort it out in the testcase.
Richard.
> Uros.