Allow direct allocation in old pointer space.

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 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 4994 matching lines @@
   Handle<Map> initial_map(constructor->initial_map());
   int instance_size = initial_map->instance_size();
   ASSERT(initial_map->pre_allocated_property_fields() +
          initial_map->unused_property_fields() -
          initial_map->inobject_properties() == 0);
 
   // Allocate memory for the object.  The initial map might change when
   // the constructor's prototype changes, but instance size and property
   // counts remain unchanged (if slack tracking finished).
   ASSERT(!constructor->shared()->IsInobjectSlackTrackingInProgress());
-  __ AllocateInNewSpace(instance_size,
-                        result,
-                        no_reg,
-                        scratch,
-                        deferred->entry(),
-                        TAG_OBJECT);
+  __ Allocate(instance_size, result, no_reg, scratch, deferred->entry(),
+              TAG_OBJECT);
 
   __ bind(deferred->exit());
   if (FLAG_debug_code) {
     Label is_in_new_space;
     __ JumpIfInNewSpace(result, scratch, &is_in_new_space);
     __ Abort("Allocated object is not in new-space");
     __ bind(&is_in_new_space);
   }
 
   // Load the initial map.
@@ skipping 68 matching lines @@
   Register result = ToRegister(instr->result());
   Register temp = ToRegister(instr->temp());
 
   // Allocate memory for the object.
   AllocationFlags flags = TAG_OBJECT;
   if (instr->hydrogen()->MustAllocateDoubleAligned()) {
     flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT);
   }
   if (instr->size()->IsConstantOperand()) {
     int32_t size = ToInteger32(LConstantOperand::cast(instr->size()));
-    __ AllocateInNewSpace(size, result, temp, no_reg, deferred->entry(), flags);
+    if (instr->hydrogen()->CanAllocateInOldPointerSpace()) {
+      flags = static_cast<AllocationFlags>(flags | PRETENURE);
+    }
+    __ Allocate(size, result, temp, no_reg, deferred->entry(), flags);
   } else {
     Register size = ToRegister(instr->size());
     __ AllocateInNewSpace(size, result, temp, no_reg, deferred->entry(), flags);
   }
 
   __ bind(deferred->exit());
 }
 
 
 void LCodeGen::DoDeferredAllocate(LAllocate* instr) {
@@ skipping 200 matching lines @@
     // Retrieve elements_kind from bit field 2.
     __ and_(rcx, Immediate(Map::kElementsKindMask));
     __ cmpb(rcx, Immediate(boilerplate_elements_kind <<
                            Map::kElementsKindShift));
     DeoptimizeIf(not_equal, instr->environment());
   }
 
   // Allocate all objects that are part of the literal in one big
   // allocation. This avoids multiple limit checks.
   Label allocated, runtime_allocate;
-  __ AllocateInNewSpace(size, rax, rcx, rdx, &runtime_allocate, TAG_OBJECT);
+  __ Allocate(size, rax, rcx, rdx, &runtime_allocate, TAG_OBJECT);
   __ jmp(&allocated);
 
   __ bind(&runtime_allocate);
   __ Push(Smi::FromInt(size));
   CallRuntime(Runtime::kAllocateInNewSpace, 1, instr);
 
   __ bind(&allocated);
   int offset = 0;
   __ LoadHeapObject(rbx, instr->hydrogen()->boilerplate());
   EmitDeepCopy(instr->hydrogen()->boilerplate(), rax, rbx, &offset,
@@ skipping 66 matching lines @@
   __ push(rcx);
   __ Push(Smi::FromInt(instr->hydrogen()->literal_index()));
   __ Push(instr->hydrogen()->pattern());
   __ Push(instr->hydrogen()->flags());
   CallRuntime(Runtime::kMaterializeRegExpLiteral, 4, instr);
   __ movq(rbx, rax);
 
   __ bind(&materialized);
   int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize;
   Label allocated, runtime_allocate;
-  __ AllocateInNewSpace(size, rax, rcx, rdx, &runtime_allocate, TAG_OBJECT);
+  __ Allocate(size, rax, rcx, rdx, &runtime_allocate, TAG_OBJECT);
   __ jmp(&allocated);
 
   __ bind(&runtime_allocate);
   __ push(rbx);
   __ Push(Smi::FromInt(size));
   CallRuntime(Runtime::kAllocateInNewSpace, 1, instr);
   __ pop(rbx);
 
   __ bind(&allocated);
   // Copy the content into the newly allocated memory.
@@ skipping 394 matching lines @@
                                FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64