Request for review: 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 (original) (raw)
Vladimir Kozlov vladimir.kozlov at oracle.com
Tue Jan 8 23🔞13 UTC 2013
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http://cr.openjdk.java.net/~kvn/6896617_jdk/webrev
Move encoding loop into separate method for which VM will use intrinsic on x86. I want to get agreement on this jdk change before I submit VM part.
This gives +1.6% performance improvement on SPECjAppServer2004 on x86. Note, even without intrinsic (on other platforms) JIT will produce better code for this loop.
Thanks, Vladimir
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