Add asserts to ensure that we:

src/x64/ic-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 828 matching lines @@
   if (id == IC::kCallIC_Miss) {
     __ IncrementCounter(counters->call_miss(), 1);
   } else {
     __ IncrementCounter(counters->keyed_call_miss(), 1);
   }
 
   // Get the receiver of the function from the stack; 1 ~ return address.
   __ movq(rdx, Operand(rsp, (argc + 1) * kPointerSize));
 
   // Enter an internal frame.
-  __ EnterInternalFrame();
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
 
-  // Push the receiver and the name of the function.
-  __ push(rdx);
-  __ push(rcx);
+    // Push the receiver and the name of the function.
+    __ push(rdx);
+    __ push(rcx);
 
-  // Call the entry.
-  CEntryStub stub(1);
-  __ Set(rax, 2);
-  __ LoadAddress(rbx, ExternalReference(IC_Utility(id), masm->isolate()));
-  __ CallStub(&stub);
+    // Call the entry.
+    CEntryStub stub(1);
+    __ Set(rax, 2);
+    __ LoadAddress(rbx, ExternalReference(IC_Utility(id), masm->isolate()));
+    __ CallStub(&stub);
 
-  // Move result to rdi and exit the internal frame.
-  __ movq(rdi, rax);
-  __ LeaveInternalFrame();
+    // Move result to rdi and exit the internal frame.
+    __ movq(rdi, rax);
+  }
 
   // Check if the receiver is a global object of some sort.
   // This can happen only for regular CallIC but not KeyedCallIC.
   if (id == IC::kCallIC_Miss) {
     Label invoke, global;
     __ movq(rdx, Operand(rsp, (argc + 1) * kPointerSize));  // receiver
     __ JumpIfSmi(rdx, &invoke);
     __ CmpObjectType(rdx, JS_GLOBAL_OBJECT_TYPE, rcx);
     __ j(equal, &global);
     __ CmpInstanceType(rcx, JS_BUILTINS_OBJECT_TYPE);
@@ skipping 121 matching lines @@
   __ SmiToInteger32(rbx, rcx);
   // ebx: untagged index
   __ LoadFromNumberDictionary(&slow_load, rax, rcx, rbx, r9, rdi, rdi);
   __ IncrementCounter(counters->keyed_call_generic_smi_dict(), 1);
   __ jmp(&do_call);
 
   __ bind(&slow_load);
   // This branch is taken when calling KeyedCallIC_Miss is neither required
   // nor beneficial.
   __ IncrementCounter(counters->keyed_call_generic_slow_load(), 1);
-  __ EnterInternalFrame();
-  __ push(rcx);  // save the key
-  __ push(rdx);  // pass the receiver
-  __ push(rcx);  // pass the key
-  __ CallRuntime(Runtime::kKeyedGetProperty, 2);
-  __ pop(rcx);  // restore the key
-  __ LeaveInternalFrame();
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    __ push(rcx);  // save the key
+    __ push(rdx);  // pass the receiver
+    __ push(rcx);  // pass the key
+    __ CallRuntime(Runtime::kKeyedGetProperty, 2);
+    __ pop(rcx);  // restore the key
+  }
   __ movq(rdi, rax);
   __ jmp(&do_call);
 
   __ bind(&check_string);
   GenerateKeyStringCheck(masm, rcx, rax, rbx, &index_string, &slow_call);
 
   // The key is known to be a symbol.
   // If the receiver is a regular JS object with slow properties then do
   // a quick inline probe of the receiver's dictionary.
   // Otherwise do the monomorphic cache probe.
@@ skipping 635 matching lines @@
   Condition cc = *jmp_address == Assembler::kJncShortOpcode
       ? not_zero
       : zero;
   *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64