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7054512: Compress class pointers after perm gen removal

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Support of compress class pointers in the compilers.

Reviewed-by: kvn, twisti
This commit is contained in:
Roland Westrelin 2012-10-09 10:11:38 +02:00
parent 7162ad011c
commit 61eb5a0549
93 changed files with 1600 additions and 497 deletions
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7
hotspot/src/share/vm/runtime/arguments.cpp
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@ -1423,10 +1423,9 @@ void Arguments::set_ergonomics_flags() {
FLAG_SET_DEFAULT(UseCompressedKlassPointers, false);
} else {
// Turn on UseCompressedKlassPointers too
// The compiler is broken for this so turn it on when the compiler is fixed.
// if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) {
// FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true);
// }
if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) {
FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true);
}
// Set the ClassMetaspaceSize to something that will not need to be
// expanded, since it cannot be expanded.
if (UseCompressedKlassPointers && FLAG_IS_DEFAULT(ClassMetaspaceSize)) {