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8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing

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Move _max_locals and _size_of_parameters to ConstMethod for better sharing.

Reviewed-by: coleenp, minqi, jrose
This commit is contained in:
Jiangli Zhou 2012-12-11 12:41:31 -05:00
parent ba2a5a260d
commit 511a9d8982
13 changed files with 132 additions and 74 deletions
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17
hotspot/src/share/vm/oops/constMethod.hpp
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@ -46,6 +46,7 @@
// | interp_kind | flags | code_size |
// | name index | signature index |
// | method_idnum | max_stack |
// | max_locals | size_of_parameters |
// |------------------------------------------------------|
// | |
// | byte codes |
@ -150,7 +151,8 @@ private:
// initially corresponds to the index into the methods array.
// but this may change with redefinition
u2 _max_stack; // Maximum number of entries on the expression stack
u2 _max_locals; // Number of local variables used by this method
u2 _size_of_parameters; // size of the parameter block (receiver + arguments) in words
// Constructor
ConstMethod(int byte_code_size,
@ -338,6 +340,11 @@ public:
static ByteSize max_stack_offset()
{ return byte_offset_of(ConstMethod, _max_stack); }
static ByteSize size_of_locals_offset()
{ return byte_offset_of(ConstMethod, _max_locals); }
static ByteSize size_of_parameters_offset()
{ return byte_offset_of(ConstMethod, _size_of_parameters); }
// Unique id for the method
static const u2 MAX_IDNUM;
@ -349,6 +356,14 @@ public:
int max_stack() const { return _max_stack; }
void set_max_stack(int size) { _max_stack = size; }
// max locals
int max_locals() const { return _max_locals; }
void set_max_locals(int size) { _max_locals = size; }
// size of parameters
int size_of_parameters() const { return _size_of_parameters; }
void set_size_of_parameters(int size) { _size_of_parameters = size; }
// Deallocation for RedefineClasses
void deallocate_contents(ClassLoaderData* loader_data);
bool is_klass() const { return false; }