(original) (raw)

Hi Christian,

This is generated code by the ICC, that’s why you don’t see any line by line comments here. The algorithm used by Intel libm is given in comments as a preamble.

Best Regards,

Sandhya

From: hotspot-compiler-dev \[mailto:hotspot-compiler-dev-bounces@openjdk.java.net\] On Behalf Of Christian Thalinger
Sent: Friday, July 24, 2015 9:21 AM
To: Deshpande, Vivek R
Cc: Vladimir.Kozlov@oracle.com; hotspot-compiler-dev@openjdk.java.net
Subject: Re: RFR (M): 8132207: Update for x86 exp in the math lib

On Jul 23, 2015, at 1:26 PM, Deshpande, Vivek R <vivek.r.deshpande@intel.com> wrote:

Hi all

I would like to contribute a patch which optimizes Math.exp() for 64 and 32 bit X86 architecture using Intel LIBM implementation.

Please review and sponsor this patch.

I have waited for this a long time and I applaud the change! But I’m baffled by the complexity of the implementation ;-) Are there any comments in the original Intel libm implementation which we could add here as well?



Thanks,

Vivek