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src/hotspot/share/oops/cpCache.hpp
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*** 48,58 ****
// bit length |-8--|-8--|---16----|
// --------------------------------
// _indices [ b2 | b1 | index ] index = constant_pool_index
// _f1 [ entry specific ] metadata ptr (method or klass)
// _f2 [ entry specific ] vtable or res_ref index, or vfinal method ptr
! // _flags [tos|0|F=1|0|0|i|f|v|0 |0000|field_index] (for field entries)
// bit length [ 4 |1| 1 |1|1|1|1|1|1 |1 |-3-|----16-----]
// _flags [tos|0|F=0|M|A|I|f|0|vf|indy_rf|000|00000|psize] (for method entries)
// bit length [ 4 |1| 1 |1|1|1|1|1|1 |-4--|--8--|--8--]
// --------------------------------
--- 48,58 ----
// bit length |-8--|-8--|---16----|
// --------------------------------
// _indices [ b2 | b1 | index ] index = constant_pool_index
// _f1 [ entry specific ] metadata ptr (method or klass)
// _f2 [ entry specific ] vtable or res_ref index, or vfinal method ptr
! // _flags [tos|0|F=1|0|N|i|f|v|0 |0000|field_index] (for field entries)
// bit length [ 4 |1| 1 |1|1|1|1|1|1 |1 |-3-|----16-----]
// _flags [tos|0|F=0|M|A|I|f|0|vf|indy_rf|000|00000|psize] (for method entries)
// bit length [ 4 |1| 1 |1|1|1|1|1|1 |-4--|--8--|--8--]
// --------------------------------
*** 74,83 ****
--- 74,84 ----
// vf = virtual but final (method entries only: is_vfinal())
// indy_rf = call site specifier method resolution failed
//
// The flags after TosState have the following interpretation:
// bit 27: 0 for fields, 1 for methods
+ // N flag true if field is marked flattenable (must never be null)
// i flag true if field is inlined (flatten)
// f flag true if field is marked final
// v flag true if field is volatile (only for fields)
// f2 flag true if f2 contains an oop (e.g., virtual final method)
// fv flag true if invokeinterface used for method in class Object
*** 92,103 ****
// itos: 4
// ltos: 5
// ftos: 6
// dtos: 7
// atos: 8
! // qtos: 9
! // vtos: 10
//
// Entry specific: field entries:
// _indices = get (b1 section) and put (b2 section) bytecodes, original constant pool index
// _f1 = field holder (as a java.lang.Class, not a Klass*)
// _f2 = field offset in bytes
--- 93,103 ----
// itos: 4
// ltos: 5
// ftos: 6
// dtos: 7
// atos: 8
! // vtos: 9
//
// Entry specific: field entries:
// _indices = get (b1 section) and put (b2 section) bytecodes, original constant pool index
// _f1 = field holder (as a java.lang.Class, not a Klass*)
// _f2 = field offset in bytes
*** 183,192 ****
--- 183,193 ----
tos_state_shift = BitsPerInt - tos_state_bits, // see verify_tos_state_shift below
// misc. option bits; can be any bit position in [16..27]
is_field_entry_shift = 26, // (F) is it a field or a method?
has_method_type_shift = 25, // (M) does the call site have a MethodType?
has_appendix_shift = 24, // (A) does the call site have an appendix argument?
+ is_flattenable_field = 24, // (N) is the field flattenable (must never be null)
is_forced_virtual_shift = 23, // (I) is the interface reference forced to virtual mode?
is_flatten_field = 23, // (i) is the value field flatten?
is_final_shift = 22, // (f) is the field or method final?
is_volatile_shift = 21, // (v) is the field volatile?
is_vfinal_shift = 20, // (vf) did the call resolve to a final method?
*** 225,234 ****
--- 226,236 ----
int field_offset, // the field offset in words in the field holder
TosState field_type, // the (machine) field type
bool is_final, // the field is final
bool is_volatile, // the field is volatile
bool is_flatten, // the field is flatten (value field)
+ bool is_flattenable, // the field is flattenable (must never be null)
Klass* root_klass // needed by the GC to dirty the klass
);
private:
void set_direct_or_vtable_call(
*** 323,333 ****
case Bytecodes::_invokehandle : // fall through
case Bytecodes::_invokedynamic : // fall through
case Bytecodes::_invokeinterface : return 1;
case Bytecodes::_putstatic : // fall through
case Bytecodes::_putfield : // fall through
! case Bytecodes::_vwithfield : // fall through
case Bytecodes::_invokevirtual : return 2;
default : break;
}
return -1;
}
--- 325,335 ----
case Bytecodes::_invokehandle : // fall through
case Bytecodes::_invokedynamic : // fall through
case Bytecodes::_invokeinterface : return 1;
case Bytecodes::_putstatic : // fall through
case Bytecodes::_putfield : // fall through
! case Bytecodes::_withfield : // fall through
case Bytecodes::_invokevirtual : return 2;
default : break;
}
return -1;
}
*** 373,383 ****
bool has_method_type() const { return (!is_f1_null()) && (_flags & (1 << has_method_type_shift)) != 0; }
bool is_method_entry() const { return (_flags & (1 << is_field_entry_shift)) == 0; }
bool is_field_entry() const { return (_flags & (1 << is_field_entry_shift)) != 0; }
bool is_long() const { return flag_state() == ltos; }
bool is_double() const { return flag_state() == dtos; }
! bool is_valuetype() const { return flag_state() == qtos; }
TosState flag_state() const { assert((uint)number_of_states <= (uint)tos_state_mask+1, "");
return (TosState)((_flags >> tos_state_shift) & tos_state_mask); }
void set_indy_resolution_failed();
// Code generation support
--- 375,385 ----
bool has_method_type() const { return (!is_f1_null()) && (_flags & (1 << has_method_type_shift)) != 0; }
bool is_method_entry() const { return (_flags & (1 << is_field_entry_shift)) == 0; }
bool is_field_entry() const { return (_flags & (1 << is_field_entry_shift)) != 0; }
bool is_long() const { return flag_state() == ltos; }
bool is_double() const { return flag_state() == dtos; }
! bool is_flattenable() const { return (_flags & (1 << is_flattenable_field)) != 0; }
TosState flag_state() const { assert((uint)number_of_states <= (uint)tos_state_mask+1, "");
return (TosState)((_flags >> tos_state_shift) & tos_state_mask); }
void set_indy_resolution_failed();
// Code generation support
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