Make V8 compile with Win64 dbg

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/generic-node-inl.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 87 matching lines @@
     size_t input_count = 0;
     // Compute inputs_ and input_count.
     if (base_operand_ != NULL) {
       inputs[input_count++] = base_operand_;
     }
     if (index_operand_ != NULL) {
       inputs[input_count++] = index_operand_;
     }
     if (displacement_operand_ != NULL) {
       // Pure displacement mode not supported by x64.
-      DCHECK_NE(input_count, 0);
+      DCHECK_NE(static_cast<int>(input_count), 0);
       inputs[input_count++] = displacement_operand_;
     }
-    DCHECK_NE(input_count, 0);
+    DCHECK_NE(static_cast<int>(input_count), 0);
     return input_count;
   }
 
   static const int kMaxInputCount = 3;
   InstructionOperand* base_operand_;
   InstructionOperand* index_operand_;
   InstructionOperand* displacement_operand_;
   AddressingMode mode_;
 };
 
@@ skipping 133 matching lines @@
   if (cont->IsBranch()) {
     inputs[input_count++] = g.Label(cont->true_block());
     inputs[input_count++] = g.Label(cont->false_block());
   }
 
   outputs[output_count++] = g.DefineSameAsFirst(node);
   if (cont->IsSet()) {
     outputs[output_count++] = g.DefineAsRegister(cont->result());
   }
 
-  DCHECK_NE(0, input_count);
-  DCHECK_NE(0, output_count);
+  DCHECK_NE(0, static_cast<int>(input_count));
+  DCHECK_NE(0, static_cast<int>(output_count));
   DCHECK_GE(arraysize(inputs), input_count);
   DCHECK_GE(arraysize(outputs), output_count);
 
   Instruction* instr = selector->Emit(cont->Encode(opcode), output_count,
                                       outputs, input_count, inputs);
   if (cont->IsBranch()) instr->MarkAsControl();
 }
 
 
 // Shared routine for multiple binary operations.
@@ skipping 575 matching lines @@
   call_instr->MarkAsCall();
   if (deoptimization != NULL) {
     DCHECK(continuation != NULL);
     call_instr->MarkAsControl();
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8