[turbofan] Rip out the unused OsrGuard node.

src/compiler/common-operator.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/common-operator.h"
 
 #include "src/assembler.h"
 #include "src/base/lazy-instance.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/node.h"
@@ skipping 289 matching lines @@
     os << elem;
   }
   return os;
 }
 
 int OsrValueIndexOf(Operator const* op) {
   DCHECK_EQ(IrOpcode::kOsrValue, op->opcode());
   return OpParameter<int>(op);
 }
 
-size_t hash_value(OsrGuardType type) { return static_cast<size_t>(type); }
-
-std::ostream& operator<<(std::ostream& os, OsrGuardType type) {
-  switch (type) {
-    case OsrGuardType::kUninitialized:
-      return os << "Uninitialized";
-    case OsrGuardType::kSignedSmall:
-      return os << "SignedSmall";
-    case OsrGuardType::kAny:
-      return os << "Any";
-  }
-  UNREACHABLE();
-  return os;
-}
-
-OsrGuardType OsrGuardTypeOf(Operator const* op) {
-  DCHECK_EQ(IrOpcode::kOsrGuard, op->opcode());
-  return OpParameter<OsrGuardType>(op);
-}
-
 SparseInputMask SparseInputMaskOf(Operator const* op) {
   DCHECK(op->opcode() == IrOpcode::kStateValues ||
          op->opcode() == IrOpcode::kTypedStateValues);
 
   if (op->opcode() == IrOpcode::kTypedStateValues) {
     return OpParameter<TypedStateValueInfo>(op).sparse_input_mask();
   }
   return OpParameter<SparseInputMask>(op);
 }
 
@@ skipping 663 matching lines @@
 }
 
 const Operator* CommonOperatorBuilder::OsrValue(int index) {
   return new (zone()) Operator1<int>(                // --
       IrOpcode::kOsrValue, Operator::kNoProperties,  // opcode
       "OsrValue",                                    // name
       0, 0, 1, 1, 0, 0,                              // counts
       index);                                        // parameter
 }
 
-const Operator* CommonOperatorBuilder::OsrGuard(OsrGuardType type) {
-  return new (zone()) Operator1<OsrGuardType>(  // --
-      IrOpcode::kOsrGuard, Operator::kNoThrow,  // opcode
-      "OsrGuard",                               // name
-      1, 1, 1, 1, 1, 0,                         // counts
-      type);                                    // parameter
-}
-
 const Operator* CommonOperatorBuilder::Int32Constant(int32_t value) {
   return new (zone()) Operator1<int32_t>(         // --
       IrOpcode::kInt32Constant, Operator::kPure,  // opcode
       "Int32Constant",                            // name
       0, 0, 0, 1, 0, 0,                           // counts
       value);                                     // parameter
 }
 
 
 const Operator* CommonOperatorBuilder::Int64Constant(int64_t value) {
@@ skipping 330 matching lines @@
 CommonOperatorBuilder::CreateFrameStateFunctionInfo(
     FrameStateType type, int parameter_count, int local_count,
     Handle<SharedFunctionInfo> shared_info) {
   return new (zone()->New(sizeof(FrameStateFunctionInfo)))
       FrameStateFunctionInfo(type, parameter_count, local_count, shared_info);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8