8186777: Make Klass::_java_mirror an OopHandle
Summary: Add indirection for fetching mirror so that GC doesn't have to follow CLD::_klasses
Reviewed-by: hseigel, thartmann, eosterlund, stefank
Contributed-by: coleen.phillimore@oracle.com, rickard.backman@oracle.com
/*
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* Copyright (c) 2016 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef CPU_S390_VM_VMREG_S390_INLINE_HPP
#define CPU_S390_VM_VMREG_S390_INLINE_HPP
inline VMReg RegisterImpl::as_VMReg() {
if (this == noreg) {
return VMRegImpl::Bad();
}
return VMRegImpl::as_VMReg(encoding() << 1);
}
inline VMReg FloatRegisterImpl::as_VMReg() {
return VMRegImpl::as_VMReg((encoding() << 1) + ConcreteRegisterImpl::max_gpr);
}
inline VMReg ConditionRegisterImpl::as_VMReg() {
return VMRegImpl::as_VMReg((encoding() << 1) + ConcreteRegisterImpl::max_fpr);
}
#endif // CPU_S390_VM_VMREG_S390_INLINE_HPP