Mercurial > hg > truffle
view src/share/vm/Xusage.txt @ 18415:6dc4f0be9a70
Add support of lzcnt and tzcnt
- support of lzcnt and tzcnt instructions,
- unit tests for lzcnt/tzcnt,
- ability to emit bsf/bsr in case lzcnt/tzcnt were turned off from the command line,
- tightening the stamps produced by ScanBitForward/ReverseNode nodes.
Contributed-By: Igor Veresov <igor.veresov@oracle.com>
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Wed, 19 Nov 2014 13:32:05 +0100 |
parents | a61af66fc99e |
children |
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-Xmixed mixed mode execution (default) -Xint interpreted mode execution only -Xbootclasspath:<directories and zip/jar files separated by ;> set search path for bootstrap classes and resources -Xbootclasspath/a:<directories and zip/jar files separated by ;> append to end of bootstrap class path -Xbootclasspath/p:<directories and zip/jar files separated by ;> prepend in front of bootstrap class path -Xnoclassgc disable class garbage collection -Xincgc enable incremental garbage collection -Xloggc:<file> log GC status to a file with time stamps -Xbatch disable background compilation -Xms<size> set initial Java heap size -Xmx<size> set maximum Java heap size -Xss<size> set java thread stack size -Xprof output cpu profiling data -Xfuture enable strictest checks, anticipating future default -Xrs reduce use of OS signals by Java/VM (see documentation) -Xcheck:jni perform additional checks for JNI functions -Xshare:off do not attempt to use shared class data -Xshare:auto use shared class data if possible (default) -Xshare:on require using shared class data, otherwise fail. The -X options are non-standard and subject to change without notice.