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8001107: @Stable annotation for constant folding of lazily evaluated variables

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Co-authored-by: John Rose <john.r.rose@oracle.com>
Reviewed-by: rbackman, twisti, kvn
This commit is contained in:
Vladimir Ivanov 2013-09-10 14:51:48 -07:00
parent 19d50345e1
commit f0e77ac67f
25 changed files with 419 additions and 84 deletions
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6
hotspot/src/share/vm/classfile/classFileParser.cpp
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@ -1774,6 +1774,10 @@ ClassFileParser::AnnotationCollector::annotation_index(ClassLoaderData* loader_d
if (_location != _in_method) break; // only allow for methods
if (!privileged) break; // only allow in privileged code
return _method_LambdaForm_Hidden;
case vmSymbols::VM_SYMBOL_ENUM_NAME(sun_invoke_Stable_signature):
if (_location != _in_field) break; // only allow for fields
if (!privileged) break; // only allow in privileged code
return _field_Stable;
case vmSymbols::VM_SYMBOL_ENUM_NAME(sun_misc_Contended_signature):
if (_location != _in_field && _location != _in_class) break; // only allow for fields and classes
if (!EnableContended || (RestrictContended && !privileged)) break; // honor privileges
@ -1786,6 +1790,8 @@ ClassFileParser::AnnotationCollector::annotation_index(ClassLoaderData* loader_d
void ClassFileParser::FieldAnnotationCollector::apply_to(FieldInfo* f) {
if (is_contended())
f->set_contended_group(contended_group());
if (is_stable())
f->set_stable(true);
}
ClassFileParser::FieldAnnotationCollector::~FieldAnnotationCollector() {