[Interpreter] Implements calls through CallICStub in the interpreter.

src/x64/builtins-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 757 matching lines @@
   // Pop return address to allow tail-call after pushing arguments.
   __ PopReturnAddressTo(kScratchRegister);
 
   Generate_InterpreterPushArgs(masm, true);
 
   // Call the target.
   __ PushReturnAddressFrom(kScratchRegister);  // Re-push return address.
   __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
 }
 
+// static
+void Builtins::Generate_InterpreterPushArgsAndCallIC(MacroAssembler* masm) {
+  // ----------- S t a t e -------------
+  //  -- rax : the number of arguments (not including the receiver)
+  //  -- rbx : the address of the first argument to be pushed. Subsequent
+  //           arguments should be consecutive above this, in the same order as
+  //           they are to be pushed onto the stack.
+  //  -- rdi : the target to call (can be any Object).
+  //  -- rdx : Feedback vector slot-id.
+  //  -- r9 : type feedback vector. // TODO(mythria): move to rbx to match
+  //                                   CallICStub expectation.
+  // -----------------------------------
+

[mvstanton, 2016/02/15 11:13:45]

Wow, more registers makes things so much nicer :p.

[mythria, 2016/02/17 11:02:48]

Yes :).

+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+
+    Generate_InterpreterPushArgs(masm, true);
+
+    __ Move(rbx, r9);
+
+    // Call via the CallIC stub.
+    CallICState call_ic_state(0, ConvertReceiverMode::kAny,
+                              TailCallMode::kDisallow, true);
+    CallICStub stub(masm->isolate(), call_ic_state);
+    // TODO(mythria): This should be replaced by a TailCallStub, when we
+    // update the code to find the target IC from jump instructions.
+    __ CallStub(&stub);
+  }
+  __ Ret();
+}
 
 // static
 void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rax : the number of arguments (not including the receiver)
   //  -- rdx : the new target (either the same as the constructor or
   //           the JSFunction on which new was invoked initially)
   //  -- rdi : the constructor to call (can be any Object)
   //  -- rbx : the address of the first argument to be pushed. Subsequent
   //           arguments should be consecutive above this, in the same order as
@@ skipping 2062 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64