Initial shot at deoptimizing JSCallFunction in Turbofan.

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/control-builders.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/node-properties-inl.h"
@@ skipping 714 matching lines @@
               info()->context()->builtins()->javascript_builtin(
                   Builtins::FILTER_KEY)));
           // Callee.
           environment()->Push(jsgraph()->HeapConstant(function));
           // Receiver.
           environment()->Push(obj);
           // Args.
           environment()->Push(value);
           // result is either the string key or Smi(0) indicating the property
           // is gone.
+          // TODO(jarin) Insert lazy deoptimization support here - the call
+          // actually
+          // can deoptimize.
           Node* res = ProcessArguments(
-              javascript()->Call(3, NO_CALL_FUNCTION_FLAGS), 3);
+              javascript()->Call(3, NO_CALL_FUNCTION_FLAGS,
+                                 CallDescriptor::kCannotDeoptimize),
+              3);
           Node* property_missing = NewNode(javascript()->StrictEqual(), res,
                                            jsgraph()->ZeroConstant());
           {
             IfBuilder is_property_missing(this);
             is_property_missing.If(property_missing);
             is_property_missing.Then();
             // Inc counter and continue.
             Node* index_inc =
                 NewNode(javascript()->Add(), index, jsgraph()->OneConstant());
             environment()->Poke(0, index_inc);
@@ skipping 502 matching lines @@
     Node* pair = NewNode(op, callee, source, receiver, strict, position);
     Node* new_callee = NewNode(common()->Projection(0), pair);
     Node* new_receiver = NewNode(common()->Projection(1), pair);
 
     // Patch callee and receiver on the environment.
     environment()->Poke(arg_count + 1, new_callee);
     environment()->Poke(arg_count + 0, new_receiver);
   }
 
   // Create node to perform the function call.
-  Operator* call = javascript()->Call(args->length() + 2, flags);
+  Operator* call = javascript()->Call(args->length() + 2, flags,
+                                      CallDescriptor::kCanDeoptimize);
   Node* value = ProcessArguments(call, args->length() + 2);
   ast_context()->ProduceValue(value);
+
+  BuildLazyBailout(value, expr->id());
 }
 
 
 void AstGraphBuilder::VisitCallNew(CallNew* expr) {
   VisitForValue(expr->expression());
 
   // Evaluate all arguments to the construct call.
   ZoneList<Expression*>* args = expr->arguments();
   VisitForValues(args);
 
@@ skipping 14 matching lines @@
   PrintableUnique<String> unique = MakeUnique(name);
   Node* callee_value = NewNode(javascript()->LoadNamed(unique), receiver_value);
   environment()->Push(callee_value);
   environment()->Push(receiver_value);
 
   // Evaluate all arguments to the JS runtime call.
   ZoneList<Expression*>* args = expr->arguments();
   VisitForValues(args);
 
   // Create node to perform the JS runtime call.
-  Operator* call = javascript()->Call(args->length() + 2, flags);
+  Operator* call = javascript()->Call(args->length() + 2, flags,
+                                      CallDescriptor::kCanDeoptimize);
   Node* value = ProcessArguments(call, args->length() + 2);
   ast_context()->ProduceValue(value);
+
+  BuildLazyBailout(value, expr->id());
 }
 
 
 void AstGraphBuilder::VisitCallRuntime(CallRuntime* expr) {
   const Runtime::Function* function = expr->function();
 
   // Handle calls to runtime functions implemented in JavaScript separately as
   // the call follows JavaScript ABI and the callee is statically unknown.
   if (expr->is_jsruntime()) {
     DCHECK(function == NULL && expr->name()->length() > 0);
@@ skipping 668 matching lines @@
 
     // Continue with the original environment.
     set_environment(continuation_env);
 
     NewNode(common()->Continuation());
   }
 }
 }
 }
 }  // namespace v8::internal::compiler