MIPS: Introduce FLAG_vector_ics.

src/mips64/ic-mips64.cc

Index: src/mips64/ic-mips64.cc
diff --git a/src/mips64/ic-mips64.cc b/src/mips64/ic-mips64.cc
index ba7272ab0e7a95837a74686ec56d596878128419..1107b4c38a56b1cdd5f7a3361c8d92912593a103 100644
--- a/src/mips64/ic-mips64.cc
+++ b/src/mips64/ic-mips64.cc
@@ -511,7 +511,19 @@ const Register LoadIC::ReceiverRegister() { return a1; }
 const Register LoadIC::NameRegister() { return a2; }
 
 
-const Register StoreIC::ReceiverRegister() { return a1; }
+const Register LoadIC::SlotRegister() {
+  ASSERT(FLAG_vector_ics);
+  return a0;
+}
+
+
+const Register LoadIC::VectorRegister() {
+  ASSERT(FLAG_vector_ics);
+  return a3;
+}
+
+
+  const Register StoreIC::ReceiverRegister() { return a1; }
 const Register StoreIC::NameRegister() { return a2; }
 const Register StoreIC::ValueRegister() { return a0; }