FMA Support in hotspot

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Ashkrit Sharma

Apr 24, 2014, 10:04:57 AM4/24/14
I was looking @ presentation , it talks about interesting stuff on modern CPU.

One of the thing highlighted is support for FMA instruction set on intel haswell .

Does hotspot has optimization to use this new intrinsic ?

Aleksey Shipilev

Apr 24, 2014, 10:23:15 AM4/24/14
to mechanical-sympathy
There is no explicit intrinsic I am aware of. Also, I see no hits for "vfma" and "fma" in Hotspot code generators for x86. Therefore, one could tentatively claim the support is not there yet.


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