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8148481: Devirtualize Klass::vtable

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Move remainder of vtable related methods to Klass

Reviewed-by: cjplummer, coleenp
This commit is contained in:
Mikael Gerdin 2016-01-19 12:07:32 +01:00
parent 211dc93a85
commit 3cda485fe5
12 changed files with 44 additions and 73 deletions
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8
hotspot/src/share/vm/jvmci/jvmciCompilerToVM.cpp
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@ -655,8 +655,7 @@ C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_t
vtable_index = LinkResolver::vtable_index_of_interface_method(holder_klass, resolved_method);
assert(vtable_index >= 0 , "we should have valid vtable index at this point");
InstanceKlass* inst = InstanceKlass::cast(recv_klass);
selected_method = inst->method_at_vtable(vtable_index);
selected_method = recv_klass->method_at_vtable(vtable_index);
} else {
// at this point we are sure that resolved_method is virtual and not
// a miranda method; therefore, it must have a valid vtable index.
@ -671,10 +670,7 @@ C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_t
assert(resolved_method->can_be_statically_bound(), "cannot override this method");
selected_method = resolved_method();
} else {
// recv_klass might be an arrayKlassOop but all vtables start at
// the same place. The cast is to avoid virtual call and assertion.
InstanceKlass* inst = (InstanceKlass*)recv_klass;
selected_method = inst->method_at_vtable(vtable_index);
selected_method = recv_klass->method_at_vtable(vtable_index);
}
}
oop result = CompilerToVM::get_jvmci_method(selected_method, CHECK_NULL);