[turbofan] Introduce CheckTaggedSigned and CheckTaggedPointer operators.

src/compiler/operator.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_OPERATOR_H_
 #define V8_COMPILER_OPERATOR_H_
 
 #include <ostream>  // NOLINT(readability/streams)
 
 #include "src/base/flags.h"
@@ skipping 18 matching lines @@
 // Static parameters are private to the operator and only semantically
 // meaningful to the operator itself.
 class Operator : public ZoneObject {
  public:
   typedef uint16_t Opcode;
 
   // Properties inform the operator-independent optimizer about legal
   // transformations for nodes that have this operator.
   enum Property {
     kNoProperties = 0,
-    kReducible = 1 << 0,    // Participates in strength reduction.
-    kCommutative = 1 << 1,  // OP(a, b) == OP(b, a) for all inputs.
-    kAssociative = 1 << 2,  // OP(a, OP(b,c)) == OP(OP(a,b), c) for all inputs.
-    kIdempotent = 1 << 3,   // OP(a); OP(a) == OP(a).
-    kNoRead = 1 << 4,       // Has no scheduling dependency on Effects
-    kNoWrite = 1 << 5,      // Does not modify any Effects and thereby
+    kCommutative = 1 << 0,  // OP(a, b) == OP(b, a) for all inputs.
+    kAssociative = 1 << 1,  // OP(a, OP(b,c)) == OP(OP(a,b), c) for all inputs.
+    kIdempotent = 1 << 2,   // OP(a); OP(a) == OP(a).
+    kNoRead = 1 << 3,       // Has no scheduling dependency on Effects
+    kNoWrite = 1 << 4,      // Does not modify any Effects and thereby
                             // create new scheduling dependencies.
-    kNoThrow = 1 << 6,      // Can never generate an exception.
+    kNoThrow = 1 << 5,      // Can never generate an exception.
+    kNoDeopt = 1 << 6,      // Can never generate an eager deoptimization exit.
     kFoldable = kNoRead | kNoWrite,
-    kKontrol = kFoldable | kNoThrow,
-    kEliminatable = kNoWrite | kNoThrow,
-    kPure = kNoRead | kNoWrite | kNoThrow | kIdempotent
+    kKontrol = kNoDeopt | kFoldable | kNoThrow,
+    kEliminatable = kNoDeopt | kNoWrite | kNoThrow,
+    kPure = kNoDeopt | kNoRead | kNoWrite | kNoThrow | kIdempotent
   };
   typedef base::Flags<Property, uint8_t> Properties;
 
   // Constructor.
   Operator(Opcode opcode, Properties properties, const char* mnemonic,
            size_t value_in, size_t effect_in, size_t control_in,
            size_t value_out, size_t effect_out, size_t control_out);
 
   virtual ~Operator() {}
 
@@ skipping 162 matching lines @@
 template <>
 struct OpEqualTo<Handle<ScopeInfo>> : public Handle<ScopeInfo>::equal_to {};
 template <>
 struct OpHash<Handle<ScopeInfo>> : public Handle<ScopeInfo>::hash {};
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPERATOR_H_