VM: Improve performance of method recognizer and unify the it with the intrinsifier.

runtime/vm/method_recognizer.cc

Index: runtime/vm/method_recognizer.cc
===================================================================
--- runtime/vm/method_recognizer.cc	(revision 0)
+++ runtime/vm/method_recognizer.cc	(revision 0)
@@ -0,0 +1,82 @@
+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#include "vm/method_recognizer.h"
+
+#include "vm/object.h"
+#include "vm/symbols.h"
+
+namespace dart {
+
+MethodRecognizer::Kind MethodRecognizer::RecognizeKind(
+    const Function& function) {
+  return function.recognized_kind();
+}
+
+
+bool MethodRecognizer::AlwaysInline(const Function& function) {
+  return function.always_inline();
+}
+
+
+bool MethodRecognizer::PolymorphicTarget(const Function& function) {
+  return function.is_polymorphic_target();
+}
+
+
+const char* MethodRecognizer::KindToCString(Kind kind) {
+#define KIND_TO_STRING(class_name, function_name, enum_name, fp)               \
+  if (kind == k##enum_name) return #enum_name;
+RECOGNIZED_LIST(KIND_TO_STRING)
+#undef KIND_TO_STRING
+  return "?";
+}
+
+
+void MethodRecognizer::InitializeState() {
+  GrowableArray<Library*> libs(3);
+  libs.Add(&Library::ZoneHandle(Library::CoreLibrary()));
+  libs.Add(&Library::ZoneHandle(Library::MathLibrary()));
+  libs.Add(&Library::ZoneHandle(Library::TypedDataLibrary()));
+  libs.Add(&Library::ZoneHandle(Library::InternalLibrary()));
+  libs.Add(&Library::ZoneHandle(Library::ProfilerLibrary()));
+  Function& func = Function::Handle();
+
+#define SET_RECOGNIZED_KIND(class_name, function_name, enum_name, fp)          \
+  func = Library::GetFunction(libs, #class_name, #function_name);              \
+  if (func.IsNull()) {                                                         \
+    OS::PrintErr("Missing %s::%s\n", #class_name, #function_name);             \
+    UNREACHABLE();                                                             \
+  }                                                                            \
+  ASSERT(func.CheckSourceFingerprint(fp));                                     \
+  func.set_recognized_kind(k##enum_name);
+
+  RECOGNIZED_LIST(SET_RECOGNIZED_KIND);
+
+#define SET_FUNCTION_BIT(class_name, function_name, dest, fp, setter_name)     \
+  func = Library::GetFunction(libs, #class_name, #function_name);              \
+  if (func.IsNull()) {                                                         \
+    OS::PrintErr("Missing %s::%s\n", #class_name, #function_name);             \
+    UNREACHABLE();                                                             \
+  }                                                                            \
+  ASSERT(func.CheckSourceFingerprint(fp));                                     \
+  func.setter_name(true);
+
+#define SET_IS_ALWAYS_INLINE(class_name, function_name, dest, fp)              \
+  SET_FUNCTION_BIT(class_name, function_name, dest, fp, set_always_inline)
+
+#define SET_IS_POLYMORPHIC_TARGET(class_name, function_name, dest, fp)         \
+  SET_FUNCTION_BIT(class_name, function_name, dest, fp,                        \
+                   set_is_polymorphic_target)
+
+  INLINE_WHITE_LIST(SET_IS_ALWAYS_INLINE);
+  POLYMORPHIC_TARGET_LIST(SET_IS_POLYMORPHIC_TARGET);
+
+#undef SET_RECOGNIZED_KIND
+#undef SET_IS_ALWAYS_INLINE
+#undef SET_IS_POLYMORPHIC_TARGET
+#undef SET_FUNCTION_BIT
+}
+
+}  // namespace dart