X87: When serializer is enalbed, we disable the X87 stack check to reduce the code size.

src/x87/macro-assembler-x87.cc

 // 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_X87
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 2453 matching lines @@
   } else {
     pop(scratch);
     add(esp, Immediate(bytes_dropped));
     push(scratch);
     ret(0);
   }
 }
 
 
 void MacroAssembler::VerifyX87StackDepth(uint32_t depth) {
+  // Turn off the stack depth check when serializer is enabled to reduce the
+  // code size.
+  if (serializer_enabled()) return;
   // Make sure the floating point stack is either empty or has depth items.
   DCHECK(depth <= 7);
   // This is very expensive.
   DCHECK(FLAG_debug_code && FLAG_enable_slow_asserts);
 
   // The top-of-stack (tos) is 7 if there is one item pushed.
   int tos = (8 - depth) % 8;
   const int kTopMask = 0x3800;
   push(eax);
   fwait();
@@ skipping 784 matching lines @@
   if (mag.shift > 0) sar(edx, mag.shift);
   mov(eax, dividend);
   shr(eax, 31);
   add(edx, eax);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X87