Introduce AllocateInNewSpace stub.

src/compiler/simplified-lowering.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/simplified-lowering.h"
 
 #include <limits>
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 1194 matching lines @@
     return kFullWriteBarrier;
   }
   return kNoWriteBarrier;
 }
 
 }  // namespace
 
 
 void SimplifiedLowering::DoAllocate(Node* node) {
   PretenureFlag pretenure = OpParameter<PretenureFlag>(node->op());
-  AllocationSpace space = pretenure == TENURED ? OLD_SPACE : NEW_SPACE;
-  Runtime::FunctionId f = Runtime::kAllocateInTargetSpace;
-  Operator::Properties props = node->op()->properties();
-  CallDescriptor* desc = Linkage::GetRuntimeCallDescriptor(zone(), f, 2, props);
-  ExternalReference ref(f, jsgraph()->isolate());
-  int32_t flags = AllocateTargetSpace::encode(space);
-  node->InsertInput(graph()->zone(), 0, jsgraph()->CEntryStubConstant(1));
-  node->InsertInput(graph()->zone(), 2, jsgraph()->SmiConstant(flags));
-  node->InsertInput(graph()->zone(), 3, jsgraph()->ExternalConstant(ref));
-  node->InsertInput(graph()->zone(), 4, jsgraph()->Int32Constant(2));
-  node->InsertInput(graph()->zone(), 5, jsgraph()->NoContextConstant());
-  NodeProperties::ChangeOp(node, common()->Call(desc));
+  if (pretenure == NOT_TENURED) {
+    Callable callable = CodeFactory::AllocateInNewSpace(isolate());
+    Node* target = jsgraph()->HeapConstant(callable.code());
+    CallDescriptor* descriptor = Linkage::GetStubCallDescriptor(
+        isolate(), jsgraph()->zone(), callable.descriptor(), 0,
+        CallDescriptor::kNoFlags, Operator::kNoThrow);
+    const Operator* op = common()->Call(descriptor);
+    node->InsertInput(graph()->zone(), 0, target);
+    node->InsertInput(graph()->zone(), 2, jsgraph()->NoContextConstant());
+    NodeProperties::ChangeOp(node, op);
+  } else {
+    DCHECK_EQ(TENURED, pretenure);
+    AllocationSpace space = OLD_SPACE;
+    Runtime::FunctionId f = Runtime::kAllocateInTargetSpace;
+    Operator::Properties props = node->op()->properties();
+    CallDescriptor* desc =
+        Linkage::GetRuntimeCallDescriptor(zone(), f, 2, props);
+    ExternalReference ref(f, jsgraph()->isolate());
+    int32_t flags = AllocateTargetSpace::encode(space);
+    node->InsertInput(graph()->zone(), 0, jsgraph()->CEntryStubConstant(1));
+    node->InsertInput(graph()->zone(), 2, jsgraph()->SmiConstant(flags));
+    node->InsertInput(graph()->zone(), 3, jsgraph()->ExternalConstant(ref));
+    node->InsertInput(graph()->zone(), 4, jsgraph()->Int32Constant(2));
+    node->InsertInput(graph()->zone(), 5, jsgraph()->NoContextConstant());
+    NodeProperties::ChangeOp(node, common()->Call(desc));
+  }
 }
 
 
 void SimplifiedLowering::DoLoadField(Node* node) {
   const FieldAccess& access = FieldAccessOf(node->op());
   Node* offset = jsgraph()->IntPtrConstant(access.offset - access.tag());
   node->InsertInput(graph()->zone(), 1, offset);
   NodeProperties::ChangeOp(node, machine()->Load(access.machine_type));
 }
 
@@ skipping 434 matching lines @@
   ReplaceEffectUses(node, comparison);
   node->ReplaceInput(0, comparison);
   node->ReplaceInput(1, jsgraph()->SmiConstant(EQUAL));
   node->TrimInputCount(2);
   NodeProperties::ChangeOp(node, machine()->IntLessThanOrEqual());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8