Convert Linkage to use MachineSignature.

src/compiler/x64/instruction-selector-x64.cc

 // Copyright 2014 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.
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ skipping 653 matching lines @@
 }
 
 
 void InstructionSelector::VisitCall(Node* call, BasicBlock* continuation,
                                     BasicBlock* deoptimization) {
   X64OperandGenerator g(this);
   CallDescriptor* descriptor = OpParameter<CallDescriptor*>(call);
 
   FrameStateDescriptor* frame_state_descriptor = NULL;
   if (descriptor->NeedsFrameState()) {
-    frame_state_descriptor =
-        GetFrameStateDescriptor(call->InputAt(descriptor->InputCount()));
+    frame_state_descriptor = GetFrameStateDescriptor(
+        call->InputAt(static_cast<int>(descriptor->InputCount())));
   }
 
   CallBuffer buffer(zone(), descriptor, frame_state_descriptor);
 
   // Compute InstructionOperands for inputs and outputs.
   InitializeCallBuffer(call, &buffer, true, true);
 
   // TODO(dcarney): stack alignment for c calls.
   // TODO(dcarney): shadow space on window for c calls.
   // Push any stack arguments.
@@ skipping 40 matching lines @@
     DCHECK(deoptimization == NULL && continuation == NULL);
     Emit(kArchDrop |
              MiscField::encode(static_cast<int>(buffer.pushed_nodes.size())),
          NULL);
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8