[strong] Refactor ObjectStrength into a replacement for strong boolean args

src/compiler/ast-graph-builder.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/ast-graph-builder.h"
 
 #include "src/compiler.h"
 #include "src/compiler/ast-loop-assignment-analyzer.h"
 #include "src/compiler/control-builders.h"
 #include "src/compiler/js-type-feedback.h"
@@ skipping 2529 matching lines @@
     case Token::NE:
       op = javascript()->NotEqual();
       break;
     case Token::EQ_STRICT:
       op = javascript()->StrictEqual();
       break;
     case Token::NE_STRICT:
       op = javascript()->StrictNotEqual();
       break;
     case Token::LT:
-      op = javascript()->LessThan(language_mode());
+      op = javascript()->LessThan(strength(language_mode()));
       break;
     case Token::GT:
-      op = javascript()->GreaterThan(language_mode());
+      op = javascript()->GreaterThan(strength(language_mode()));
       break;
     case Token::LTE:
-      op = javascript()->LessThanOrEqual(language_mode());
+      op = javascript()->LessThanOrEqual(strength(language_mode()));
       break;
     case Token::GTE:
-      op = javascript()->GreaterThanOrEqual(language_mode());
+      op = javascript()->GreaterThanOrEqual(strength(language_mode()));
       break;
     case Token::INSTANCEOF:
       op = javascript()->InstanceOf();
       break;
     case Token::IN:
       op = javascript()->HasProperty();
       break;
     default:
       op = NULL;
       UNREACHABLE();
@@ skipping 837 matching lines @@
 Node* AstGraphBuilder::BuildThrow(Node* exception_value) {
   NewNode(javascript()->CallRuntime(Runtime::kReThrow, 1), exception_value);
   Node* control = NewNode(common()->Throw(), exception_value);
   UpdateControlDependencyToLeaveFunction(control);
   return control;
 }
 
 
 Node* AstGraphBuilder::BuildBinaryOp(Node* left, Node* right, Token::Value op) {
   const Operator* js_op;
+  Strength op_strength = strength(language_mode());
   switch (op) {
     case Token::BIT_OR:
-      js_op = javascript()->BitwiseOr(language_mode());
+      js_op = javascript()->BitwiseOr(op_strength);
       break;
     case Token::BIT_AND:
-      js_op = javascript()->BitwiseAnd(language_mode());
+      js_op = javascript()->BitwiseAnd(op_strength);
       break;
     case Token::BIT_XOR:
-      js_op = javascript()->BitwiseXor(language_mode());
+      js_op = javascript()->BitwiseXor(op_strength);
       break;
     case Token::SHL:
-      js_op = javascript()->ShiftLeft(language_mode());
+      js_op = javascript()->ShiftLeft(op_strength);
       break;
     case Token::SAR:
-      js_op = javascript()->ShiftRight(language_mode());
+      js_op = javascript()->ShiftRight(op_strength);
       break;
     case Token::SHR:
-      js_op = javascript()->ShiftRightLogical(language_mode());
+      js_op = javascript()->ShiftRightLogical(op_strength);
       break;
     case Token::ADD:
-      js_op = javascript()->Add(language_mode());
+      js_op = javascript()->Add(op_strength);
       break;
     case Token::SUB:
-      js_op = javascript()->Subtract(language_mode());
+      js_op = javascript()->Subtract(op_strength);
       break;
     case Token::MUL:
-      js_op = javascript()->Multiply(language_mode());
+      js_op = javascript()->Multiply(op_strength);
       break;
     case Token::DIV:
-      js_op = javascript()->Divide(language_mode());
+      js_op = javascript()->Divide(op_strength);
       break;
     case Token::MOD:
-      js_op = javascript()->Modulus(language_mode());
+      js_op = javascript()->Modulus(op_strength);
       break;
     default:
       UNREACHABLE();
       js_op = NULL;
   }
   return NewNode(js_op, left, right);
 }
 
 
 bool AstGraphBuilder::CheckOsrEntry(IterationStatement* stmt) {
@@ skipping 326 matching lines @@
     // Phi does not exist yet, introduce one.
     value = NewPhi(inputs, value, control);
     value->ReplaceInput(inputs - 1, other);
   }
   return value;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8