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[Bug math/20032] vectorized exp is slower than scalar exp
- From: "andrew.n.senkevich at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 12 May 2016 06:25:23 +0000
- Subject: [Bug math/20032] vectorized exp is slower than scalar exp
- Auto-submitted: auto-generated
- References: <bug-20032-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=20032
Andrew Senkevich <andrew.n.senkevich at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Andrew Senkevich <andrew.n.senkevich at gmail dot com> ---
Hi,
testcase is not correct for performance check because it uses different
arguments for scalar and vector calls.
> which in turn apparently calls _ZGVbN2v_exp_sse4.
Yes, AVX vector versions are implemented as wrappers to SSE vector versions.
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