[refactoring] Split CodeAssemblerState out of CodeAssembler

src/builtins/builtins-global.cc

 // Copyright 2016 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/builtins/builtins.h"
 #include "src/builtins/builtins-utils.h"
 
 #include "src/code-factory.h"
 #include "src/compiler.h"
 #include "src/uri.h"
@@ skipping 83 matching lines @@
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, function, Compiler::GetFunctionFromString(
                              handle(target->native_context(), isolate),
                              Handle<String>::cast(x), NO_PARSE_RESTRICTION));
   RETURN_RESULT_OR_FAILURE(
       isolate,
       Execution::Call(isolate, function, target_global_proxy, 0, nullptr));
 }
 
 // ES6 section 18.2.2 isFinite ( number )
-void Builtins::Generate_GlobalIsFinite(CodeStubAssembler* assembler) {
+void Builtins::Generate_GlobalIsFinite(compiler::CodeAssemblerState* state) {
   typedef CodeStubAssembler::Label Label;
   typedef compiler::Node Node;
   typedef CodeStubAssembler::Variable Variable;
+  CodeStubAssembler assembler(state);
 
-  Node* context = assembler->Parameter(4);
+  Node* context = assembler.Parameter(4);
 
-  Label return_true(assembler), return_false(assembler);
+  Label return_true(&assembler), return_false(&assembler);
 
   // We might need to loop once for ToNumber conversion.
-  Variable var_num(assembler, MachineRepresentation::kTagged);
-  Label loop(assembler, &var_num);
-  var_num.Bind(assembler->Parameter(1));
-  assembler->Goto(&loop);
-  assembler->Bind(&loop);
+  Variable var_num(&assembler, MachineRepresentation::kTagged);
+  Label loop(&assembler, &var_num);
+  var_num.Bind(assembler.Parameter(1));
+  assembler.Goto(&loop);
+  assembler.Bind(&loop);
   {
     // Load the current {num} value.
     Node* num = var_num.value();
 
     // Check if {num} is a Smi or a HeapObject.
-    assembler->GotoIf(assembler->TaggedIsSmi(num), &return_true);
+    assembler.GotoIf(assembler.TaggedIsSmi(num), &return_true);
 
     // Check if {num} is a HeapNumber.
-    Label if_numisheapnumber(assembler),
-        if_numisnotheapnumber(assembler, Label::kDeferred);
-    assembler->Branch(assembler->WordEqual(assembler->LoadMap(num),
-                                           assembler->HeapNumberMapConstant()),
-                      &if_numisheapnumber, &if_numisnotheapnumber);
+    Label if_numisheapnumber(&assembler),
+        if_numisnotheapnumber(&assembler, Label::kDeferred);
+    assembler.Branch(assembler.WordEqual(assembler.LoadMap(num),
+                                         assembler.HeapNumberMapConstant()),
+                     &if_numisheapnumber, &if_numisnotheapnumber);
 
-    assembler->Bind(&if_numisheapnumber);
+    assembler.Bind(&if_numisheapnumber);
     {
       // Check if {num} contains a finite, non-NaN value.
-      Node* num_value = assembler->LoadHeapNumberValue(num);
-      assembler->BranchIfFloat64IsNaN(
-          assembler->Float64Sub(num_value, num_value), &return_false,
-          &return_true);
+      Node* num_value = assembler.LoadHeapNumberValue(num);
+      assembler.BranchIfFloat64IsNaN(assembler.Float64Sub(num_value, num_value),
+                                     &return_false, &return_true);
     }
 
-    assembler->Bind(&if_numisnotheapnumber);
+    assembler.Bind(&if_numisnotheapnumber);
     {
       // Need to convert {num} to a Number first.
-      Callable callable = CodeFactory::NonNumberToNumber(assembler->isolate());
-      var_num.Bind(assembler->CallStub(callable, context, num));
-      assembler->Goto(&loop);
+      Callable callable = CodeFactory::NonNumberToNumber(assembler.isolate());
+      var_num.Bind(assembler.CallStub(callable, context, num));
+      assembler.Goto(&loop);
     }
   }
 
-  assembler->Bind(&return_true);
-  assembler->Return(assembler->BooleanConstant(true));
+  assembler.Bind(&return_true);
+  assembler.Return(assembler.BooleanConstant(true));
 
-  assembler->Bind(&return_false);
-  assembler->Return(assembler->BooleanConstant(false));
+  assembler.Bind(&return_false);
+  assembler.Return(assembler.BooleanConstant(false));
 }
 
 // ES6 section 18.2.3 isNaN ( number )
-void Builtins::Generate_GlobalIsNaN(CodeStubAssembler* assembler) {
+void Builtins::Generate_GlobalIsNaN(compiler::CodeAssemblerState* state) {
   typedef CodeStubAssembler::Label Label;
   typedef compiler::Node Node;
   typedef CodeStubAssembler::Variable Variable;
+  CodeStubAssembler assembler(state);
 
-  Node* context = assembler->Parameter(4);
+  Node* context = assembler.Parameter(4);
 
-  Label return_true(assembler), return_false(assembler);
+  Label return_true(&assembler), return_false(&assembler);
 
   // We might need to loop once for ToNumber conversion.
-  Variable var_num(assembler, MachineRepresentation::kTagged);
-  Label loop(assembler, &var_num);
-  var_num.Bind(assembler->Parameter(1));
-  assembler->Goto(&loop);
-  assembler->Bind(&loop);
+  Variable var_num(&assembler, MachineRepresentation::kTagged);
+  Label loop(&assembler, &var_num);
+  var_num.Bind(assembler.Parameter(1));
+  assembler.Goto(&loop);
+  assembler.Bind(&loop);
   {
     // Load the current {num} value.
     Node* num = var_num.value();
 
     // Check if {num} is a Smi or a HeapObject.
-    assembler->GotoIf(assembler->TaggedIsSmi(num), &return_false);
+    assembler.GotoIf(assembler.TaggedIsSmi(num), &return_false);
 
     // Check if {num} is a HeapNumber.
-    Label if_numisheapnumber(assembler),
-        if_numisnotheapnumber(assembler, Label::kDeferred);
-    assembler->Branch(assembler->WordEqual(assembler->LoadMap(num),
-                                           assembler->HeapNumberMapConstant()),
-                      &if_numisheapnumber, &if_numisnotheapnumber);
+    Label if_numisheapnumber(&assembler),
+        if_numisnotheapnumber(&assembler, Label::kDeferred);
+    assembler.Branch(assembler.WordEqual(assembler.LoadMap(num),
+                                         assembler.HeapNumberMapConstant()),
+                     &if_numisheapnumber, &if_numisnotheapnumber);
 
-    assembler->Bind(&if_numisheapnumber);
+    assembler.Bind(&if_numisheapnumber);
     {
       // Check if {num} contains a NaN.
-      Node* num_value = assembler->LoadHeapNumberValue(num);
-      assembler->BranchIfFloat64IsNaN(num_value, &return_true, &return_false);
+      Node* num_value = assembler.LoadHeapNumberValue(num);
+      assembler.BranchIfFloat64IsNaN(num_value, &return_true, &return_false);
     }
 
-    assembler->Bind(&if_numisnotheapnumber);
+    assembler.Bind(&if_numisnotheapnumber);
     {
       // Need to convert {num} to a Number first.
-      Callable callable = CodeFactory::NonNumberToNumber(assembler->isolate());
-      var_num.Bind(assembler->CallStub(callable, context, num));
-      assembler->Goto(&loop);
+      Callable callable = CodeFactory::NonNumberToNumber(assembler.isolate());
+      var_num.Bind(assembler.CallStub(callable, context, num));
+      assembler.Goto(&loop);
     }
   }
 
-  assembler->Bind(&return_true);
-  assembler->Return(assembler->BooleanConstant(true));
+  assembler.Bind(&return_true);
+  assembler.Return(assembler.BooleanConstant(true));
 
-  assembler->Bind(&return_false);
-  assembler->Return(assembler->BooleanConstant(false));
+  assembler.Bind(&return_false);
+  assembler.Return(assembler.BooleanConstant(false));
 }
 
 }  // namespace internal
 }  // namespace v8