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Re: [PATCH] Optimized generic expf and exp2f

From: Arjan van de Ven <arjan at linux dot intel dot com>
To: Wilco Dijkstra <Wilco dot Dijkstra at arm dot com>, "libc-alpha at sourceware dot org" <libc-alpha at sourceware dot org>, Szabolcs Nagy <Szabolcs dot Nagy at arm dot com>, Joseph Myers <joseph at codesourcery dot com>
Cc: nd <nd at arm dot com>
Date: Wed, 6 Sep 2017 05:45:14 -0700
Subject: Re: [PATCH] Optimized generic expf and exp2f
Authentication-results: sourceware.org; auth=none
References: <DB6PR0801MB2053A12C3A4F7032C0107E1683960@DB6PR0801MB2053.eurprd08.prod.outlook.com> <DB6PR0801MB205311F53E0828F3F0B583F383970@DB6PR0801MB2053.eurprd08.prod.outlook.com>


expf reciprocal-throughput: 1.5x faster
expf latency: 1.4x faster


interesting; the fma existing expf for x86_64 is 10 to 11 cycles reciprocal-throughput ;-)
time to see how you got that 1.5x faster....

Follow-Ups:
- Re: [PATCH] Optimized generic expf and exp2f
  - From: Wilco Dijkstra

References:
- Re: [PATCH] Optimized generic expf and exp2f
  - From: Wilco Dijkstra
- Re: [PATCH] Optimized generic expf and exp2f
  - From: Wilco Dijkstra

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