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A comment on Graal Autovectorization. Parent comment

Re:Graal Autovectorization by boyter on Wednesday September 25, 2019 @03:28AM (#21068578)
I had always believed the OpenJDK did based on this http://prestodb.rocks/code/simd/ which was on HN a while ago https://news.ycombinator.com/item?id=14636802 so yes?

This is really out of my depth though, would love someone who actually knows this area to pipe in.

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Re:Graal Autovectorization by xyzzy_plugh on Wednesday September 25, 2019 @04:52AM (#21068953)
No, afaik this was not a default optimization. There are SIMD optimizations in specific paths but I'm not aware of general low level autovectorizations before this (outside of ORC/OIL which was never generally available for JVM afaik)
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Re:Graal Autovectorization by zjaffee on Wednesday September 25, 2019 @04:32PM (#21075046)
SuperUser is enabled by default on openJDK, but it's incredibly simplistic vectorizations being done as can be seen in the article the person above posted.
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