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Re: [PATCH] Update of minimal required version of Binutils to 2.25
- 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: Wed, 10 Jun 2015 10:11:12 +0000
- Subject: Re: [PATCH] Update of minimal required version of Binutils to 2.25
- Authentication-results: sourceware.org; auth=none
- References: <CAMXFM3umo+WyJgWJ8ozzzoNN9L+u9oFj7jxib4wL1Qxv40EOgg at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1506092109210 dot 16480 at digraph dot polyomino dot org dot uk> <CAMXFM3vMzGUuVisF4BwuUiN1DHzNNRZpDmbcu9KBe1cNB_bkyg at mail dot gmail dot com>
On Wed, 10 Jun 2015, Andrew Senkevich wrote:
> I have configure check for AVX512 assembler support, but this is the
> case when some AVX512 instructions with zmm registers not supported by
> Binutils 2.24, with which that confugure check passed. So we need 2.25
> for support of these several instructions, which appears in SKX
> versions of vector math functions.
I'd say make the configure check stricter so that it fails with 2.24,
rather than putting .byte encodings of instructions in more places than
necessary.
--
Joseph S. Myers
joseph@codesourcery.com