RFR (M) Close alignment gaps in InstanceKlass
coleen.phillimore at oracle.com
coleen.phillimore at oracle.com
Tue Apr 21 20:12:44 UTC 2020
Summary: moved fields around and some constant fields into ConstantPool
This is a simple change except that I moved some constant fields from
InstanceKlass into the constant pool so they can be shared read-only in
the CDS archive. There are associated repercussions in SA and JVMCI, so
please look at these changes. Also moved similarly sized fields
together in the class so there's less likelihood of introducing gaps in
future InstanceKlass changes.
InstanceKlass is reduced from 544 to 520 bytes in a simple Hello World
class.
open webrev at http://cr.openjdk.java.net/~coleenp/2020/8238048.01/webrev
bug link https://bugs.openjdk.java.net/browse/JDK-8238048
Tested with tier1-6.
Thanks,
Coleen
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