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
diff --git a/runtime/mirror/class.cc b/runtime/mirror/class.cc
index 2afb4af..1739019 100644
--- a/runtime/mirror/class.cc
+++ b/runtime/mirror/class.cc
@@ -25,6 +25,7 @@
#include "dex_file-inl.h"
#include "gc/accounting/card_table-inl.h"
#include "handle_scope-inl.h"
+#include "method.h"
#include "object_array-inl.h"
#include "object-inl.h"
#include "runtime.h"
@@ -876,5 +877,26 @@
return Runtime::Current()->GetClassLinker()->GetDescriptorForProxy(this) == match;
}
+mirror::ArtMethod* Class::GetDeclaredConstructor(
+ Thread* self, Handle<mirror::ObjectArray<mirror::Class>> args) {
+ auto* direct_methods = GetDirectMethods();
+ size_t count = direct_methods != nullptr ? direct_methods->GetLength() : 0u;
+ for (size_t i = 0; i < count; ++i) {
+ auto* m = direct_methods->GetWithoutChecks(i);
+ // Skip <clinit> which is a static constructor, as well as non constructors.
+ if (m->IsStatic() || !m->IsConstructor()) {
+ continue;
+ }
+ // May cause thread suspension and exceptions.
+ if (m->EqualParameters(args)) {
+ return m;
+ }
+ if (self->IsExceptionPending()) {
+ return nullptr;
+ }
+ }
+ return nullptr;
+}
+
} // namespace mirror
} // namespace art