[stubs] Renames WordIsSmi to TaggedIsSmi, introducing an appropriate bitcast of the parameter.

src/interpreter/interpreter-assembler.cc

 // Copyright 2015 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/interpreter/interpreter-assembler.h"
 
 #include <limits>
 #include <ostream>
 
 #include "src/code-factory.h"
@@ skipping 567 matching lines @@
   // The checks. First, does function match the recorded monomorphic target?
   Node* feedback_element = LoadFixedArrayElement(type_feedback_vector, slot_id);
   Node* feedback_value = LoadWeakCellValue(feedback_element);
   Node* is_monomorphic = WordEqual(function, feedback_value);
   BranchIf(is_monomorphic, &handle_monomorphic, &extra_checks);
 
   Bind(&handle_monomorphic);
   {
     // The compare above could have been a SMI/SMI comparison. Guard against
     // this convincing us that we have a monomorphic JSFunction.
-    Node* is_smi = WordIsSmi(function);
+    Node* is_smi = TaggedIsSmi(function);
     GotoIf(is_smi, &extra_checks);
 
     // Increment the call count.
     IncrementCallCount(type_feedback_vector, slot_id);
 
     // Call using call function builtin.
     Callable callable = CodeFactory::InterpreterPushArgsAndCall(
         isolate(), tail_call_mode, CallableType::kJSFunction);
     Node* code_target = HeapConstant(callable.code());
     Node* ret_value = CallStub(callable.descriptor(), code_target, context,
@@ skipping 43 matching lines @@
 
     Bind(&check_initialized);
     {
       Label possibly_monomorphic(this);
       // Check if it is uninitialized.
       Node* is_uninitialized = WordEqual(
           feedback_element,
           HeapConstant(TypeFeedbackVector::UninitializedSentinel(isolate())));
       GotoUnless(is_uninitialized, &mark_megamorphic);
 
-      Node* is_smi = WordIsSmi(function);
+      Node* is_smi = TaggedIsSmi(function);
       GotoIf(is_smi, &mark_megamorphic);
 
       // Check if function is an object of JSFunction type
       Node* instance_type = LoadInstanceType(function);
       Node* is_js_function =
           WordEqual(instance_type, Int32Constant(JS_FUNCTION_TYPE));
       GotoUnless(is_js_function, &mark_megamorphic);
 
       // Check if it is the Array() function.
       Node* context_slot =
@@ skipping 104 matching lines @@
   Variable return_value(this, MachineRepresentation::kTagged);
   Variable allocation_feedback(this, MachineRepresentation::kTagged);
   allocation_feedback.Bind(UndefinedConstant());
 
   // Slot id of 0 is used to indicate no type feedback is available.
   STATIC_ASSERT(TypeFeedbackVector::kReservedIndexCount > 0);
   Node* is_feedback_unavailable = Word32Equal(slot_id, Int32Constant(0));
   GotoIf(is_feedback_unavailable, &call_construct);
 
   // Check that the constructor is not a smi.
-  Node* is_smi = WordIsSmi(constructor);
+  Node* is_smi = TaggedIsSmi(constructor);
   GotoIf(is_smi, &call_construct);
 
   // Check that constructor is a JSFunction.
   Node* instance_type = LoadInstanceType(constructor);
   Node* is_js_function =
       WordEqual(instance_type, Int32Constant(JS_FUNCTION_TYPE));
   BranchIf(is_js_function, &js_function, &call_construct);
 
   Bind(&js_function);
   {
@@ skipping 23 matching lines @@
             HeapConstant(TypeFeedbackVector::MegamorphicSentinel(isolate())));
         GotoIf(is_megamorphic, &call_construct_function);
 
         Comment("check if weak cell");
         Node* is_weak_cell = WordEqual(LoadMap(feedback_element),
                                        LoadRoot(Heap::kWeakCellMapRootIndex));
         GotoUnless(is_weak_cell, &check_allocation_site);
         // If the weak cell is cleared, we have a new chance to become
         // monomorphic.
         Comment("check if weak cell is cleared");
-        Node* is_smi = WordIsSmi(feedback_value);
+        Node* is_smi = TaggedIsSmi(feedback_value);
         BranchIf(is_smi, &initialize, &mark_megamorphic);
       }
 
       Bind(&check_allocation_site);
       {
         Comment("check if it is an allocation site");
         Node* is_allocation_site =
             WordEqual(LoadObjectField(feedback_element, 0),
                       LoadRoot(Heap::kAllocationSiteMapRootIndex));
         GotoUnless(is_allocation_site, &check_initialized);
@@ skipping 322 matching lines @@
   var_value.Bind(value);
   var_type_feedback->Bind(Int32Constant(BinaryOperationFeedback::kNone));
   Goto(&loop);
   Bind(&loop);
   {
     // Load the current {value}.
     value = var_value.value();
 
     // Check if the {value} is a Smi or a HeapObject.
     Label if_valueissmi(this), if_valueisnotsmi(this);
-    Branch(WordIsSmi(value), &if_valueissmi, &if_valueisnotsmi);
+    Branch(TaggedIsSmi(value), &if_valueissmi, &if_valueisnotsmi);
 
     Bind(&if_valueissmi);
     {
       // Convert the Smi {value}.
       var_result.Bind(SmiToWord32(value));
       var_type_feedback->Bind(
           Word32Or(var_type_feedback->value(),
                    Int32Constant(BinaryOperationFeedback::kSignedSmall)));
       Goto(&done_loop);
     }
@@ skipping 196 matching lines @@
     Goto(&loop);
   }
   Bind(&done_loop);
 
   return array;
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8