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Re: PATCH: Update host_detect_local_cpu for new Intel processors
- From: Uros Bizjak <ubizjak at gmail dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Cc: "H.J. Lu" <hjl dot tools at gmail dot com>, Kirill Yukhin <kirill dot yukhin at gmail dot com>
- Date: Sat, 24 Jan 2015 11:16:42 +0100
- Subject: Re: PATCH: Update host_detect_local_cpu for new Intel processors
- Authentication-results: sourceware.org; auth=none
- References: <20150124023701 dot GA22505 at gmail dot com> <20150124025048 dot GA22664 at gmail dot com> <CAFULd4bA1e=gAHziOfb_qpYpu860r0BEZDA6dE0Rgj0VDweT9A at mail dot gmail dot com>
On Sat, Jan 24, 2015 at 11:13 AM, Uros Bizjak <ubizjak@gmail.com> wrote:
> On Sat, Jan 24, 2015 at 3:50 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
>> On Fri, Jan 23, 2015 at 06:37:01PM -0800, H.J. Lu wrote:
>>> The new Silvermont aswell and Broadwell model numbers are in
>>>
>>> http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-optimization-manual.pdf
>>>
>>> This patch updates host_detect_local_cpu to check new Silvermont, Haswell
>>> and Broadwell model numbers. OK for trunk and 4.9 branch?
>>>
>>> Thanks.
>>>
>>
>> There are more model numbers in CHAPTER 35 MODEL-SPECIFIC REGISTERS (MSRS):
>>
>> http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-system-programming-manual-325384.pdf
>>
>> OK for trunk and 4.9 branch?
>>
>> Thanks.
>>
>>
>> H.J.
>> ---
>> 2015-01-23 H.J. Lu <hongjiu.lu@intel.com>
>>
>> * config/i386/driver-i386.c (host_detect_local_cpu): Check new
>> Silvermont, Haswell, Broadwell and Knights Landing model numbers.
>
> Please also update /libgcc/config/i386/cpuinfo.c and relevant testsuite files.
Huh, complete AVX512 handling is missing in the above file. Adding Kirill to CC:
Uros.