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Re: [PATCH] X86-64: Add _dl_runtime_resolve_avx[512]_opt [BZ #20508]
- From: Florian Weimer <fweimer at redhat dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: GNU C Library <libc-alpha at sourceware dot org>
- Date: Wed, 24 Aug 2016 12:55:27 +0200
- Subject: Re: [PATCH] X86-64: Add _dl_runtime_resolve_avx[512]_opt [BZ #20508]
- Authentication-results: sourceware.org; auth=none
- References: <CAMe9rOojpuFz1jTbMpNcqZK1KVDqaWozNuEuS3E67dvD3Rh=hw@mail.gmail.com>
On 08/23/2016 11:53 PM, H.J. Lu wrote:
Tested on x86-64 with/without AVX/AVX512. OK for master?
Is this supposed to address a performance issue in actually shipping
silicon?
It seems there are implementations out there which support AVX-512F and
XSAVEOPT, but not the XGETBV functionality required by this patch.
Florian