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Re: [PATCH x86_64][BZ #20139] Don't allow configure with not supporting AVX512 assembler w/o --disable-avx512.
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Andrew Senkevich <andrew dot n dot senkevich at gmail dot com>
- Cc: libc-alpha <libc-alpha at sourceware dot org>
- Date: Mon, 27 Jun 2016 17:53:13 +0000
- Subject: Re: [PATCH x86_64][BZ #20139] Don't allow configure with not supporting AVX512 assembler w/o --disable-avx512.
- Authentication-results: sourceware.org; auth=none
- References: <CAMXFM3tJkhW78PPe4=FUhbm=8HoOY4iouSqXxLObA0GEMTxoZA at mail dot gmail dot com>
On Mon, 27 Jun 2016, Andrew Senkevich wrote:
> Hi,
>
> this patch adds new configure option --enable-avx512 and defaults it for
> x86_64.
>
> To fix BZ #20139 we need don't let to configure with not supporting
> AVX512 assembler w/o --disable-avx512.
What assembler version is required to support AVX512, and when was that
version released? It might be better to increase the minimum binutils
version for building glibc (generally, or for x86_64).
--
Joseph S. Myers
joseph@codesourcery.com