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[Bug math/18740] math/test-float-vlen4 fails on non SSE4.1 machines
- From: "andrew.n.senkevich at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 30 Jul 2015 14:14:58 +0000
- Subject: [Bug math/18740] math/test-float-vlen4 fails on non SSE4.1 machines
- Auto-submitted: auto-generated
- References: <bug-18740-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=18740
Andrew Senkevich <andrew.n.senkevich at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
--- Comment #2 from Andrew Senkevich <andrew.n.senkevich at gmail dot com> ---
(In reply to H.J. Lu from comment #1)
> There are
>
> double-vlen2-arch-ext-cflags = -msse4
> double-vlen4-arch-ext-cflags = -mavx
> double-vlen4-arch-ext2-cflags = -mavx2
> double-vlen8-arch-ext-cflags = -mavx512f
>
> float-vlen4-arch-ext-cflags = -msse4
> float-vlen8-arch-ext-cflags = -mavx
> float-vlen8-arch-ext2-cflags = -mavx2
> float-vlen16-arch-ext-cflags = -mavx512f
>
> We must check SSE4 at run-time.
We can simply build these with -msse2. There are ifunc in vector function
itself to select sse2 or sse4 version.
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