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6829187: compiler optimizations required for JSR 292

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C2 implementation for invokedynamic support.

Reviewed-by: kvn, never
This commit is contained in:
Christian Thalinger 2010-01-05 13:05:58 +01:00
parent 9be2e29930
commit 375527d84e
31 changed files with 566 additions and 89 deletions
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39
hotspot/src/share/vm/ci/ciEnv.cpp
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@ -41,6 +41,7 @@ ciObjArrayKlassKlass* ciEnv::_obj_array_klass_klass_instance;
ciInstanceKlass* ciEnv::_ArrayStoreException;
ciInstanceKlass* ciEnv::_Class;
ciInstanceKlass* ciEnv::_ClassCastException;
ciInstanceKlass* ciEnv::_InvokeDynamic;
ciInstanceKlass* ciEnv::_Object;
ciInstanceKlass* ciEnv::_Throwable;
ciInstanceKlass* ciEnv::_Thread;
@ -735,6 +736,35 @@ ciMethod* ciEnv::get_method_by_index_impl(ciInstanceKlass* accessor,
}
// ------------------------------------------------------------------
// ciEnv::get_fake_invokedynamic_method_impl
ciMethod* ciEnv::get_fake_invokedynamic_method_impl(ciInstanceKlass* accessor,
int index, Bytecodes::Code bc) {
assert(bc == Bytecodes::_invokedynamic, "must be invokedynamic");
assert(accessor->get_instanceKlass()->is_linked(), "must be linked before accessing constant pool");
constantPoolHandle cpool = accessor->get_instanceKlass()->constants();
// Get the CallSite from the constant pool cache.
ConstantPoolCacheEntry* cpc_entry = cpool->cache()->secondary_entry_at(index);
assert(cpc_entry != NULL && cpc_entry->is_secondary_entry(), "sanity");
Handle call_site = cpc_entry->f1();
// Call site might not be linked yet.
if (call_site.is_null()) {
ciInstanceKlass* mh_klass = get_object(SystemDictionary::MethodHandle_klass())->as_instance_klass();
ciSymbol* sig_sym = get_object(cpool->signature_ref_at(index))->as_symbol();
return get_unloaded_method(mh_klass, ciSymbol::invoke_name(), sig_sym);
}
// Get the methodOop from the CallSite.
methodOop method_oop = (methodOop) java_dyn_CallSite::vmmethod(call_site());
assert(method_oop != NULL, "sanity");
assert(method_oop->is_method_handle_invoke(), "consistent");
return get_object(method_oop)->as_method();
}
// ------------------------------------------------------------------
// ciEnv::get_instance_klass_for_declared_method_holder
ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
@ -757,15 +787,18 @@ ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* m
}
// ------------------------------------------------------------------
// ciEnv::get_method_by_index
ciMethod* ciEnv::get_method_by_index(ciInstanceKlass* accessor,
int index, Bytecodes::Code bc) {
GUARDED_VM_ENTRY(return get_method_by_index_impl(accessor, index, bc);)
if (bc == Bytecodes::_invokedynamic) {
GUARDED_VM_ENTRY(return get_fake_invokedynamic_method_impl(accessor, index, bc);)
} else {
GUARDED_VM_ENTRY(return get_method_by_index_impl(accessor, index, bc);)
}
}
// ------------------------------------------------------------------
// ciEnv::name_buffer
char *ciEnv::name_buffer(int req_len) {