Inline functions that use arguments object in f.apply(o, arguments) pattern.

src/runtime.cc

 // Copyright 2012 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 8413 matching lines @@
   }
 
   bool has_activations() { return has_activations_; }
 
  private:
   JSFunction* function_;
   bool has_activations_;
 };
 
 
+static void MaterializeArgumentsObjectInFrame(Isolate* isolate,
+                                              JavaScriptFrame* frame) {
+  Handle<JSFunction> function(JSFunction::cast(frame->function()), isolate);
+  Handle<Object> arguments;
+  for (int i = frame->ComputeExpressionsCount() - 1; i >= 0; --i) {
+    if (frame->GetExpression(i) == isolate->heap()->arguments_marker()) {
+      if (arguments.is_null()) {
+        // FunctionGetArguments can't throw an exception, so cast away the
+        // doubt with an assert.
+        arguments = Handle<Object>(
+            Accessors::FunctionGetArguments(*function,
+                                            NULL)->ToObjectUnchecked());
+        ASSERT(*arguments != isolate->heap()->null_value());
+        ASSERT(*arguments != isolate->heap()->undefined_value());
+      }
+      frame->SetExpression(i, *arguments);
+    }
+  }
+}
+
+
 RUNTIME_FUNCTION(MaybeObject*, Runtime_NotifyDeoptimized) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 1);
   RUNTIME_ASSERT(args[0]->IsSmi());
   Deoptimizer::BailoutType type =
       static_cast<Deoptimizer::BailoutType>(args.smi_at(0));
   Deoptimizer* deoptimizer = Deoptimizer::Grab(isolate);
   ASSERT(isolate->heap()->IsAllocationAllowed());
   int jsframes = deoptimizer->jsframe_count();
 
   deoptimizer->MaterializeHeapNumbers();
   delete deoptimizer;
 
   JavaScriptFrameIterator it(isolate);
   JavaScriptFrame* frame = NULL;
-  for (int i = 0; i < jsframes - 1; i++) it.Advance();
+  for (int i = 0; i < jsframes - 1; i++) {
+    MaterializeArgumentsObjectInFrame(isolate, it.frame());
+    it.Advance();
+  }
   frame = it.frame();
 
   RUNTIME_ASSERT(frame->function()->IsJSFunction());
   Handle<JSFunction> function(JSFunction::cast(frame->function()), isolate);
-  Handle<Object> arguments;
-  for (int i = frame->ComputeExpressionsCount() - 1; i >= 0; --i) {
-    if (frame->GetExpression(i) == isolate->heap()->arguments_marker()) {
-      if (arguments.is_null()) {
-        // FunctionGetArguments can't throw an exception, so cast away the
-        // doubt with an assert.
-        arguments = Handle<Object>(
-            Accessors::FunctionGetArguments(*function,
-                                            NULL)->ToObjectUnchecked());
-        ASSERT(*arguments != isolate->heap()->null_value());
-        ASSERT(*arguments != isolate->heap()->undefined_value());
-      }
-      frame->SetExpression(i, *arguments);
-    }
-  }
+  MaterializeArgumentsObjectInFrame(isolate, frame);
 
   if (type == Deoptimizer::EAGER) {
     RUNTIME_ASSERT(function->IsOptimized());
   }
 
   // Avoid doing too much work when running with --always-opt and keep
   // the optimized code around.
   if (FLAG_always_opt || type == Deoptimizer::LAZY) {
     return isolate->heap()->undefined_value();
   }
@@ skipping 5166 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal