[emcrazyone]

As I read the article, I was wondering if the GCC compiler was converting some of the code to intrinsics?

If this is the case, and I'm not a Java programmer, I was wondering if there is a way in Java to tell the JVM to do something similar and, if so, how does the JVM cope with different CPUs. Does the JVM, on x86-64 for example, know when it can use SSE instructions?

[xxs]

Speaking of hotspot: No intrinsics for >64 bits. Comparing Strings/copying arrays does utilize SSE. There is a minimal support for auto-vectorizing some simple loops. [0] (4y old thread)

[0]: http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/...