x86 Intrinsics for fma in Math Library

[Deshpande, Vivek R]

Hi Dimitrij

I used jdk/test/java/lang/Math/FusedMacTests.java for correctness testing,
added with this https://bugs.openjdk.java.net/browse/JDK-4851642

Regards,
Vivek

From: dmitrij pochepko [mailto:dmitrij.pochepko at oracle.com]
Sent: Saturday, July 16, 2016 1:14 PM
To: Deshpande, Vivek R <vivek.r.deshpande at intel.com>; hotspot compiler <hotspot-compiler-dev at openjdk.java.net>
Cc: vladimir.kozlov at oracle.com; Joseph D. Darcy <joe.darcy at oracle.com>
Subject: Re: x86 Intrinsics for fma in Math Library


Hi,

 What about at least simplest tests included like tests for other Intrinsics at hotspot/test/compiler/intrinsics/* ?

Thanks,
Dmitrij

On 14.07.2016 20:42, Deshpande, Vivek R wrote:
Hi

I would like to contribute a patch for scalar x86 intrinsic support for fma operations in jdk9.1
Could you please review the patch.
We see significant performance gain over library implementation.

Bug ID:
https://bugs.openjdk.java.net/browse/JDK-8154122
hotspot changes:
http://cr.openjdk.java.net/~vdeshpande/FMA/8154122/hotspot/webrev.00/<http://cr.openjdk.java.net/%7Evdeshpande/FMA/8154122/hotspot/webrev.00/>
jdk changes:
http://cr.openjdk.java.net/~vdeshpande/FMA/8154122/jdk/webrev.00/<http://cr.openjdk.java.net/%7Evdeshpande/FMA/8154122/jdk/webrev.00/>

Regards,
Vivek

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