[x64] Tweaking kMaxSizeEarlyOpt value to recover SunSpider/3d-cube.

src/full-codegen/full-codegen.h

 // 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.
 
 #ifndef V8_FULL_CODEGEN_FULL_CODEGEN_H_
 #define V8_FULL_CODEGEN_FULL_CODEGEN_H_
 
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/ast.h"
@@ skipping 58 matching lines @@
     UNREACHABLE();
     return NULL;
   }
 
   static const int kMaxBackEdgeWeight = 127;
 
   // Platform-specific code size multiplier.
 #if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87
   static const int kCodeSizeMultiplier = 105;
 #elif V8_TARGET_ARCH_X64
-  static const int kCodeSizeMultiplier = 170;
+  static const int kCodeSizeMultiplier = 165;
 #elif V8_TARGET_ARCH_ARM
   static const int kCodeSizeMultiplier = 149;
 #elif V8_TARGET_ARCH_ARM64
 // TODO(all): Copied ARM value. Check this is sensible for ARM64.
   static const int kCodeSizeMultiplier = 149;
 #elif V8_TARGET_ARCH_PPC64
   static const int kCodeSizeMultiplier = 200;
 #elif V8_TARGET_ARCH_PPC
   static const int kCodeSizeMultiplier = 200;
 #elif V8_TARGET_ARCH_MIPS
@@ skipping 992 matching lines @@
 
   Address start_;
   Address instruction_start_;
   uint32_t length_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FULL_CODEGEN_FULL_CODEGEN_H_