Fix clang/win build.

src/compiler/instruction-selector.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.h"
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/pipeline.h"
@@ skipping 364 matching lines @@
   if (buffer->descriptor->CanLazilyDeoptimize()) {
     DCHECK(cont_node != NULL);
     DCHECK(deopt_node != NULL);
     buffer->instruction_args.push_back(g.Label(cont_node));
     buffer->instruction_args.push_back(g.Label(deopt_node));
   } else {
     DCHECK(cont_node == NULL);
     DCHECK(deopt_node == NULL);
   }
 
-  DCHECK(input_count ==
+  DCHECK(static_cast<size_t>(input_count) ==
          (buffer->instruction_args.size() - buffer->control_count() +
           buffer->pushed_nodes.size() - buffer->frame_state_value_count()));
 }
 
 
 void InstructionSelector::VisitBlock(BasicBlock* block) {
   DCHECK_EQ(NULL, current_block_);
   current_block_ = block;
   int current_block_end = static_cast<int>(instructions_.size());
 
@@ skipping 731 matching lines @@
 
 
 void InstructionSelector::VisitCall(Node* call, BasicBlock* continuation,
                                     BasicBlock* deoptimization) {}
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8