[turbofan] don't call out to c

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 673 matching lines @@
          g.CanBeImmediate(*input) ? g.UseImmediate(*input) : g.Use(*input));
   }
 
   // Select the appropriate opcode based on the call type.
   InstructionCode opcode;
   switch (descriptor->kind()) {
     case CallDescriptor::kCallCodeObject: {
       opcode = kArchCallCodeObject;
       break;
     }
-    case CallDescriptor::kCallAddress:
-      opcode = kArchCallAddress;
-      break;
     case CallDescriptor::kCallJSFunction:
       opcode = kArchCallJSFunction;
       break;
     default:
       UNREACHABLE();
       return;
   }
   opcode |= MiscField::encode(descriptor->flags());
 
   // Emit the call instruction.
   Instruction* call_instr =
       Emit(opcode, buffer.outputs.size(), &buffer.outputs.front(),
            buffer.instruction_args.size(), &buffer.instruction_args.front());
 
   call_instr->MarkAsCall();
   if (deoptimization != NULL) {
     DCHECK(continuation != NULL);
     call_instr->MarkAsControl();
   }
-
-  // Caller clean up of stack for C-style calls.
-  if (descriptor->kind() == CallDescriptor::kCallAddress &&
-      !buffer.pushed_nodes.empty()) {
-    DCHECK(deoptimization == NULL && continuation == NULL);
-    Emit(kArchDrop |
-             MiscField::encode(static_cast<int>(buffer.pushed_nodes.size())),
-         NULL);
-  }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8