archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-28 07:14:30 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

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

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

18
hotspot/src/share/vm/classfile/classFileParser.hpp
View file

@ -125,6 +125,7 @@ class ClassFileParser VALUE_OBJ_CLASS_SPEC {
_method_LambdaForm_Compiled,
_method_LambdaForm_Hidden,
_sun_misc_Contended,
_field_Stable,
_annotation_LIMIT
};
const Location _location;
@ -143,14 +144,23 @@ class ClassFileParser VALUE_OBJ_CLASS_SPEC {
assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
_annotations_present |= nth_bit((int)id);
}
void remove_annotation(ID id) {
assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
_annotations_present &= ~nth_bit((int)id);
}
// Report if the annotation is present.
bool has_any_annotations() { return _annotations_present != 0; }
bool has_annotation(ID id) { return (nth_bit((int)id) & _annotations_present) != 0; }
bool has_any_annotations() const { return _annotations_present != 0; }
bool has_annotation(ID id) const { return (nth_bit((int)id) & _annotations_present) != 0; }
void set_contended_group(u2 group) { _contended_group = group; }
u2 contended_group() { return _contended_group; }
u2 contended_group() const { return _contended_group; }
bool is_contended() { return has_annotation(_sun_misc_Contended); }
bool is_contended() const { return has_annotation(_sun_misc_Contended); }
void set_stable(bool stable) { set_annotation(_field_Stable); }
bool is_stable() const { return has_annotation(_field_Stable); }
};
// This class also doubles as a holder for metadata cleanup.