Version 3.6.5

src/full-codegen.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 226 matching lines @@
 
 void BreakableStatementChecker::VisitBinaryOperation(BinaryOperation* expr) {
   Visit(expr->left());
   if (expr->op() != Token::AND &&
       expr->op() != Token::OR) {
     Visit(expr->right());
   }
 }
 
 
-void BreakableStatementChecker::VisitCompareToNull(CompareToNull* expr) {
-  Visit(expr->expression());
-}
-
-
 void BreakableStatementChecker::VisitCompareOperation(CompareOperation* expr) {
   Visit(expr->left());
   Visit(expr->right());
 }
 
 
 void BreakableStatementChecker::VisitThisFunction(ThisFunction* expr) {
 }
 
 
@@ skipping 22 matching lines @@
     ASSERT(!isolate->has_pending_exception());
     return false;
   }
   unsigned table_offset = cgen.EmitStackCheckTable();
 
   Code::Flags flags = Code::ComputeFlags(Code::FUNCTION);
   Handle<Code> code = CodeGenerator::MakeCodeEpilogue(&masm, flags, info);
   code->set_optimizable(info->IsOptimizable());
   cgen.PopulateDeoptimizationData(code);
   code->set_has_deoptimization_support(info->HasDeoptimizationSupport());
+#ifdef ENABLE_DEBUGGER_SUPPORT
   code->set_has_debug_break_slots(
       info->isolate()->debugger()->IsDebuggerActive());
+#endif  // ENABLE_DEBUGGER_SUPPORT
   code->set_allow_osr_at_loop_nesting_level(0);
   code->set_stack_check_table_offset(table_offset);
   CodeGenerator::PrintCode(code, info);
   info->SetCode(code);  // may be an empty handle.
 #ifdef ENABLE_GDB_JIT_INTERFACE
   if (FLAG_gdbjit && !code.is_null()) {
     GDBJITLineInfo* lineinfo =
         masm.positions_recorder()->DetachGDBJITLineInfo();
 
     GDBJIT(RegisterDetailedLineInfo(*code, lineinfo));
@@ skipping 1008 matching lines @@
     int* stack_depth,
     int* context_length) {
   // The macros used here must preserve the result register.
   __ Drop(*stack_depth);
   __ PopTryHandler();
   *stack_depth = 0;
   return previous_;
 }
 
 
-bool FullCodeGenerator::TryLiteralCompare(CompareOperation* compare,
-                                          Label* if_true,
-                                          Label* if_false,
-                                          Label* fall_through) {
-  Expression *expr;
+bool FullCodeGenerator::TryLiteralCompare(CompareOperation* expr) {
+  Expression *sub_expr;
   Handle<String> check;
-  if (compare->IsLiteralCompareTypeof(&expr, &check)) {
-    EmitLiteralCompareTypeof(expr, check, if_true, if_false, fall_through);
+  if (expr->IsLiteralCompareTypeof(&sub_expr, &check)) {
+    EmitLiteralCompareTypeof(sub_expr, check);
     return true;
   }
 
-  if (compare->IsLiteralCompareUndefined(&expr)) {
-    EmitLiteralCompareUndefined(expr, if_true, if_false, fall_through);
+  if (expr->IsLiteralCompareUndefined(&sub_expr)) {
+    EmitLiteralCompareNil(expr, sub_expr, kUndefinedValue);
+    return true;
+  }
+
+  if (expr->IsLiteralCompareNull(&sub_expr)) {
+    EmitLiteralCompareNil(expr, sub_expr, kNullValue);
     return true;
   }
 
   return false;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal