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8264732: Clean up LinkResolver::vtable_index_of_interface_method()

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Reviewed-by: lfoltan, coleenp, dholmes
This commit is contained in:
Vladimir Ivanov 2021-04-09 11:36:20 +00:00
parent b3782ead36
commit 33fa855d5a
3 changed files with 32 additions and 26 deletions
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28
src/hotspot/share/oops/instanceKlass.cpp
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@ -3192,6 +3192,34 @@ Method* InstanceKlass::method_at_itable_or_null(InstanceKlass* holder, int index
return NULL; // offset entry not found
}
int InstanceKlass::vtable_index_of_interface_method(Method* intf_method) {
assert(is_linked(), "required");
assert(intf_method->method_holder()->is_interface(), "not an interface method");
assert(is_subtype_of(intf_method->method_holder()), "interface not implemented");
int vtable_index = Method::invalid_vtable_index;
Symbol* name = intf_method->name();
Symbol* signature = intf_method->signature();
// First check in default method array
if (!intf_method->is_abstract() && default_methods() != NULL) {
int index = find_method_index(default_methods(),
name, signature,
Klass::OverpassLookupMode::find,
Klass::StaticLookupMode::find,
Klass::PrivateLookupMode::find);
if (index >= 0) {
vtable_index = default_vtable_indices()->at(index);
}
}
if (vtable_index == Method::invalid_vtable_index) {
// get vtable_index for miranda methods
klassVtable vt = vtable();
vtable_index = vt.index_of_miranda(name, signature);
}
return vtable_index;
}
#if INCLUDE_JVMTI
// update default_methods for redefineclasses for methods that are
// not yet in the vtable due to concurrent subclass define and superinterface