[turbofan] Unify Smi checking for Check(Internalized)String.

src/compiler/simplified-lowering.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/simplified-lowering.h"
 
 #include <limits>
 
 #include "src/address-map.h"
 #include "src/base/bits.h"
@@ skipping 2264 matching lines @@
         ProcessRemainingInputs(node, 1);
         SetOutput(node, MachineRepresentation::kNone);
         return;
       }
       case IrOpcode::kCheckInternalizedString: {
         if (InputIs(node, Type::InternalizedString())) {
           VisitUnop(node, UseInfo::AnyTagged(),
                     MachineRepresentation::kTaggedPointer);
           if (lower()) DeferReplacement(node, node->InputAt(0));
         } else {
-          VisitUnop(node, UseInfo::AnyTagged(),
+          VisitUnop(node, UseInfo::CheckedHeapObjectAsTaggedPointer(),
                     MachineRepresentation::kTaggedPointer);
         }
         return;
       }
       case IrOpcode::kCheckNumber: {
         if (InputIs(node, Type::Number())) {
           if (truncation.IsUsedAsWord32()) {
             VisitUnop(node, UseInfo::TruncatingWord32(),
                       MachineRepresentation::kWord32);
           } else {
@@ skipping 20 matching lines @@
         }
         if (lower()) DeferReplacement(node, node->InputAt(0));
         return;
       }
       case IrOpcode::kCheckString: {
         if (InputIs(node, Type::String())) {
           VisitUnop(node, UseInfo::AnyTagged(),
                     MachineRepresentation::kTaggedPointer);
           if (lower()) DeferReplacement(node, node->InputAt(0));
         } else {
-          VisitUnop(node, UseInfo::AnyTagged(),
+          VisitUnop(node, UseInfo::CheckedHeapObjectAsTaggedPointer(),
                     MachineRepresentation::kTaggedPointer);
         }
         return;
       }
 
       case IrOpcode::kAllocate: {
         ProcessInput(node, 0, UseInfo::TruncatingWord32());
         ProcessRemainingInputs(node, 1);
         SetOutput(node, MachineRepresentation::kTaggedPointer);
         return;
@@ skipping 1155 matching lines @@
         isolate(), graph()->zone(), callable.descriptor(), 0, flags,
         Operator::kNoProperties);
     to_number_operator_.set(common()->Call(desc));
   }
   return to_number_operator_.get();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8