Store information about builtins in descriptors

src/builtins/builtins.cc

Index: src/builtins/builtins.cc
diff --git a/src/builtins/builtins.cc b/src/builtins/builtins.cc
index 2188743fc5f5d5e40123d122ed0589bd52fb9f79..5e6e5c038dfdc85f3698b66a780ca1129e5814f8 100644
--- a/src/builtins/builtins.cc
+++ b/src/builtins/builtins.cc
@@ -184,6 +184,7 @@ const char* Builtins::Lookup(byte* pc) {
   return NULL;
 }
 
+// static
 const char* Builtins::name(int index) {
   switch (index) {
 #define CASE(Name, ...) \
@@ -198,6 +199,68 @@ const char* Builtins::name(int index) {
   return "";
 }
 
+// static
+Address Builtins::CppEntryOf(int index) {
+  DCHECK(0 <= index && index < builtin_count);
+  switch (index) {
+#define CASE(Name, ...) \
+  case k##Name:         \
+    return FUNCTION_ADDR(Builtin_##Name);
+    BUILTIN_LIST_C(CASE)
+#undef CASE
+    default:
+      return nullptr;
+  }
+  UNREACHABLE();
+}
+
+// static
+bool Builtins::IsCpp(int index) {
+  DCHECK(0 <= index && index < builtin_count);
+  switch (index) {
+#define CASE(Name, ...) \
+  case k##Name:         \
+    return true;
+    BUILTIN_LIST(CASE, IGNORE_BUILTIN, IGNORE_BUILTIN, IGNORE_BUILTIN,
+                 IGNORE_BUILTIN, IGNORE_BUILTIN, IGNORE_BUILTIN)
+#undef CASE
+    default:
+      return false;
+  }
+  UNREACHABLE();
+}
+
+// static
+bool Builtins::IsApi(int index) {
+  DCHECK(0 <= index && index < builtin_count);
+  switch (index) {
+#define CASE(Name, ...) \
+  case k##Name:         \
+    return true;
+    BUILTIN_LIST(IGNORE_BUILTIN, CASE, IGNORE_BUILTIN, IGNORE_BUILTIN,
+                 IGNORE_BUILTIN, IGNORE_BUILTIN, IGNORE_BUILTIN)
+#undef CASE
+    default:
+      return false;
+  }
+  UNREACHABLE();
+}
+
+// static
+bool Builtins::HasCppImplementation(int index) {
+  DCHECK(0 <= index && index < builtin_count);
+  switch (index) {
+#define CASE(Name, ...) \
+  case k##Name:         \
+    return true;
+    BUILTIN_LIST_C(CASE)
+#undef CASE
+    default:
+      return false;
+  }
+  UNREACHABLE();
+}
+
 #define DEFINE_BUILTIN_ACCESSOR(Name, ...)                                    \
   Handle<Code> Builtins::Name() {                                             \
     Code** code_address = reinterpret_cast<Code**>(builtin_address(k##Name)); \