Add AbstractMethod, Constructor, Method

Moves functionality to ART from libcore. Precursor to moving
ArtMethods to native. Mostly performance improvements.

N5 perf before (irrelevant results removed):
            Class_getConstructor  962.87 ===========
         Class_getDeclaredMethod 2394.37 ============================
                 Class_getMethod 2509.20 ==============================
               Class_newInstance 1999.81 =======================
                  Method_invokeI 1439.02 =================
          Method_invokePreBoxedI 1415.82 ================
            Method_invokeStaticI 1456.24 =================
    Method_invokeStaticPreBoxedI 1427.32 =================
            Method_invokeStaticV  814.47 =========
                  Method_invokeV  816.56 =========
After:
                       benchmark      ns linear runtime
            Class_getConstructor 1302.04 ================
         Class_getDeclaredMethod 1459.01 ==================
                 Class_getMethod 1560.40 ===================
               Class_newInstance 2029.94 =========================
                  Method_invokeI 1312.89 ================
          Method_invokePreBoxedI 1255.01 ===============
            Method_invokeStaticI 1289.13 ===============
    Method_invokeStaticPreBoxedI 1196.52 ==============
            Method_invokeStaticV  790.82 =========
                  Method_invokeV  791.73 =========

Performance improvements are more than just fixing regressions introduced
in: http://android-review.googlesource.com/#/c/146069/

Bug: 19264997

Change-Id: Ife79c469fdb09f30e3aefcfc3e0ce5ed32303fce

2 files changed, 10 insertions, 9 deletions

diff --git a/runtime/entrypoints/entrypoint_utils.cc b/runtime/entrypoints/entrypoint_utils.cc
index 1d8df68..768f505 100644
--- a/runtime/entrypoints/entrypoint_utils.cc
+++ b/runtime/entrypoints/entrypoint_utils.cc
@@ -23,6 +23,7 @@
 #include "gc/accounting/card_table-inl.h"
 #include "mirror/art_method-inl.h"
 #include "mirror/class-inl.h"
+#include "mirror/method.h"
 #include "mirror/object-inl.h"
 #include "mirror/object_array-inl.h"
 #include "reflection.h"
@@ -257,7 +258,7 @@ JValue InvokeProxyInvocationHandler(ScopedObjectAccessAlreadyRunnable& soa, cons
     }
   }
 
-  // Call Proxy.invoke(Proxy proxy, ArtMethod method, Object[] args).
+  // Call Proxy.invoke(Proxy proxy, Method method, Object[] args).
   jvalue invocation_args[3];
   invocation_args[0].l = rcvr_jobj;
   invocation_args[1].l = interface_method_jobj;
@@ -274,10 +275,9 @@ JValue InvokeProxyInvocationHandler(ScopedObjectAccessAlreadyRunnable& soa, cons
       return zero;
     } else {
       StackHandleScope<1> hs(soa.Self());
-      Handle<mirror::ArtMethod> h_interface_method(
-          hs.NewHandle(soa.Decode<mirror::ArtMethod*>(interface_method_jobj)));
+      auto h_interface_method(hs.NewHandle(soa.Decode<mirror::Method*>(interface_method_jobj)));
       // This can cause thread suspension.
-      mirror::Class* result_type = h_interface_method->GetReturnType();
+      mirror::Class* result_type = h_interface_method->GetArtMethod()->GetReturnType();
       mirror::Object* result_ref = soa.Decode<mirror::Object*>(result);
       JValue result_unboxed;
       if (!UnboxPrimitiveForResult(result_ref, result_type, &result_unboxed)) {
@@ -293,10 +293,9 @@ JValue InvokeProxyInvocationHandler(ScopedObjectAccessAlreadyRunnable& soa, cons
     if (exception->IsCheckedException()) {
       mirror::Object* rcvr = soa.Decode<mirror::Object*>(rcvr_jobj);
       mirror::Class* proxy_class = rcvr->GetClass();
-      mirror::ArtMethod* interface_method =
-          soa.Decode<mirror::ArtMethod*>(interface_method_jobj);
+      mirror::Method* interface_method = soa.Decode<mirror::Method*>(interface_method_jobj);
       mirror::ArtMethod* proxy_method =
-          rcvr->GetClass()->FindVirtualMethodForInterface(interface_method);
+          rcvr->GetClass()->FindVirtualMethodForInterface(interface_method->GetArtMethod());
       int throws_index = -1;
       size_t num_virt_methods = proxy_class->NumVirtualMethods();
       for (size_t i = 0; i < num_virt_methods; i++) {
diff --git a/runtime/entrypoints/quick/quick_trampoline_entrypoints.cc b/runtime/entrypoints/quick/quick_trampoline_entrypoints.cc
index 2e813c8..2e7e2df 100644
--- a/runtime/entrypoints/quick/quick_trampoline_entrypoints.cc
+++ b/runtime/entrypoints/quick/quick_trampoline_entrypoints.cc
@@ -26,6 +26,7 @@
 #include "mirror/art_method-inl.h"
 #include "mirror/class-inl.h"
 #include "mirror/dex_cache-inl.h"
+#include "mirror/method.h"
 #include "mirror/object-inl.h"
 #include "mirror/object_array-inl.h"
 #include "runtime.h"
@@ -760,11 +761,12 @@ extern "C" uint64_t artQuickProxyInvokeHandler(mirror::ArtMethod* proxy_method,
   mirror::ArtMethod* interface_method = proxy_method->FindOverriddenMethod();
   DCHECK(interface_method != nullptr) << PrettyMethod(proxy_method);
   DCHECK(!interface_method->IsProxyMethod()) << PrettyMethod(interface_method);
-  jobject interface_method_jobj = soa.AddLocalReference<jobject>(interface_method);
+  self->EndAssertNoThreadSuspension(old_cause);
+  jobject interface_method_jobj = soa.AddLocalReference<jobject>(
+      mirror::Method::CreateFromArtMethod(soa.Self(), interface_method));
 
   // All naked Object*s should now be in jobjects, so its safe to go into the main invoke code
   // that performs allocations.
-  self->EndAssertNoThreadSuspension(old_cause);
   JValue result = InvokeProxyInvocationHandler(soa, shorty, rcvr_jobj, interface_method_jobj, args);
   // Restore references which might have moved.
   local_ref_visitor.FixupReferences();