[turbofan] Introduce JSStackCheck operator.

src/compiler/opcodes.h

 // Copyright 2013 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_COMPILER_OPCODES_H_
 #define V8_COMPILER_OPCODES_H_
 
 // Opcodes for control operators.
 #define INNER_CONTROL_OP_LIST(V) \
   V(Dead)                        \
@@ skipping 113 matching lines @@
   V(JSCreateWithContext)      \
   V(JSCreateBlockContext)     \
   V(JSCreateModuleContext)    \
   V(JSCreateScriptContext)
 
 #define JS_OTHER_OP_LIST(V) \
   V(JSCallConstruct)        \
   V(JSCallFunction)         \
   V(JSCallRuntime)          \
   V(JSYield)                \
-  V(JSDebugger)
+  V(JSDebugger)             \
+  V(JSStackCheck)
 
 #define JS_OP_LIST(V)     \
   JS_SIMPLE_BINOP_LIST(V) \
   JS_SIMPLE_UNOP_LIST(V)  \
   JS_OBJECT_OP_LIST(V)    \
   JS_CONTEXT_OP_LIST(V)   \
   JS_OTHER_OP_LIST(V)
 
 // Opcodes for VirtuaMachine-level operators.
 #define SIMPLIFIED_COMPARE_BINOP_LIST(V) \
@@ skipping 152 matching lines @@
     return kDead <= value && value <= kAlways;
   }
 
   // Returns true if opcode for control operator.
   static bool IsControlOpcode(Value value) {
     return kDead <= value && value <= kEnd;
   }
 
   // Returns true if opcode for JavaScript operator.
   static bool IsJsOpcode(Value value) {
-    return kJSEqual <= value && value <= kJSDebugger;
+    return kJSEqual <= value && value <= kJSStackCheck;
   }
 
   // Returns true if opcode for constant operator.
   static bool IsConstantOpcode(Value value) {
     return kInt32Constant <= value && value <= kHeapConstant;
   }
 
   static bool IsPhiOpcode(Value value) {
     return value == kPhi || value == kEffectPhi;
   }
 
   static bool IsMergeOpcode(Value value) {
     return value == kMerge || value == kLoop;
   }
 
   // Returns true if opcode for comparison operator.
   static bool IsComparisonOpcode(Value value) {
     return (kJSEqual <= value && value <= kJSGreaterThanOrEqual) ||
            (kNumberEqual <= value && value <= kStringLessThanOrEqual) ||
            (kWord32Equal <= value && value <= kFloat64LessThanOrEqual);
   }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_