Use the same registers for StoreIC and KeyedStoreIC.

src/arm64/ic-arm64.cc

Index: src/arm64/ic-arm64.cc
diff --git a/src/arm64/ic-arm64.cc b/src/arm64/ic-arm64.cc
index 51fa354d08ccc2c753079e5893ad60c463ed2d13..1607e5fb22d631b8d99eafd3706f33b396af4499 100644
--- a/src/arm64/ic-arm64.cc
+++ b/src/arm64/ic-arm64.cc
@@ -506,8 +506,8 @@ void KeyedStoreIC::GenerateSloppyArguments(MacroAssembler* masm) {
   Register value = ValueRegister();
   Register key = NameRegister();
   Register receiver = ReceiverRegister();
-  ASSERT(receiver.is(x2));
-  ASSERT(key.is(x1));
+  ASSERT(receiver.is(x1));
+  ASSERT(key.is(x2));
   ASSERT(value.is(x0));
 
   Register map = x3;
@@ -574,9 +574,24 @@ const Register StoreIC::NameRegister() { return x2; }
 const Register StoreIC::ValueRegister() { return x0; }
 
 
-const Register KeyedStoreIC::ReceiverRegister() { return x2; }
-const Register KeyedStoreIC::NameRegister() { return x1; }
-const Register KeyedStoreIC::ValueRegister() { return x0; }
+const Register KeyedStoreIC::ReceiverRegister() {
+  return StoreIC::ReceiverRegister();
+}
+
+
+const Register KeyedStoreIC::NameRegister() {
+  return StoreIC::NameRegister();
+}
+
+
+const Register KeyedStoreIC::ValueRegister() {
+  return StoreIC::ValueRegister();
+}
+
+
+const Register KeyedStoreIC::MapRegister() {
+  return x3;
+}
 
 
 void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
@@ -1068,8 +1083,8 @@ void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm,
   Register value = ValueRegister();
   Register key = NameRegister();
   Register receiver = ReceiverRegister();
-  ASSERT(receiver.is(x2));
-  ASSERT(key.is(x1));
+  ASSERT(receiver.is(x1));
+  ASSERT(key.is(x2));
   ASSERT(value.is(x0));
 
   Register receiver_map = x3;