Embedded constant pools.

src/factory.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/factory.h"
 
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 108 matching lines @@
     Handle<FixedDoubleArray> double_array =
         Handle<FixedDoubleArray>::cast(array);
     for (int i = 0; i < size; ++i) {
       double_array->set_the_hole(i);
     }
   }
   return array;
 }
 
 
-Handle<ConstantPoolArray> Factory::NewConstantPoolArray(
-    const ConstantPoolArray::NumberOfEntries& small) {
-  DCHECK(small.total_count() > 0);
-  CALL_HEAP_FUNCTION(
-      isolate(),
-      isolate()->heap()->AllocateConstantPoolArray(small),
-      ConstantPoolArray);
-}
-
-
-Handle<ConstantPoolArray> Factory::NewExtendedConstantPoolArray(
-    const ConstantPoolArray::NumberOfEntries& small,
-    const ConstantPoolArray::NumberOfEntries& extended) {
-  DCHECK(small.total_count() > 0);
-  DCHECK(extended.total_count() > 0);
-  CALL_HEAP_FUNCTION(
-      isolate(),
-      isolate()->heap()->AllocateExtendedConstantPoolArray(small, extended),
-      ConstantPoolArray);
-}
-
-
 Handle<OrderedHashSet> Factory::NewOrderedHashSet() {
   return OrderedHashSet::Allocate(isolate(), OrderedHashSet::kMinCapacity);
 }
 
 
 Handle<OrderedHashMap> Factory::NewOrderedHashMap() {
   return OrderedHashMap::Allocate(isolate(), OrderedHashMap::kMinCapacity);
 }
 
 
@@ skipping 855 matching lines @@
 
 
 Handle<FixedDoubleArray> Factory::CopyFixedDoubleArray(
     Handle<FixedDoubleArray> array) {
   CALL_HEAP_FUNCTION(isolate(),
                      isolate()->heap()->CopyFixedDoubleArray(*array),
                      FixedDoubleArray);
 }
 
 
-Handle<ConstantPoolArray> Factory::CopyConstantPoolArray(
-    Handle<ConstantPoolArray> array) {
-  CALL_HEAP_FUNCTION(isolate(),
-                     isolate()->heap()->CopyConstantPoolArray(*array),
-                     ConstantPoolArray);
-}
-
-
 Handle<Object> Factory::NewNumber(double value,
                                   PretenureFlag pretenure) {
   // We need to distinguish the minus zero value and this cannot be
   // done after conversion to int. Doing this by comparing bit
   // patterns is faster than using fpclassify() et al.
   if (IsMinusZero(value)) return NewHeapNumber(-0.0, IMMUTABLE, pretenure);
 
   int int_value = FastD2IChecked(value);
   if (value == int_value && Smi::IsValid(int_value)) {
     return handle(Smi::FromInt(int_value), isolate());
@@ skipping 456 matching lines @@
 
 
 Handle<Code> Factory::NewCode(const CodeDesc& desc,
                               Code::Flags flags,
                               Handle<Object> self_ref,
                               bool immovable,
                               bool crankshafted,
                               int prologue_offset,
                               bool is_debug) {
   Handle<ByteArray> reloc_info = NewByteArray(desc.reloc_size, TENURED);
-  Handle<ConstantPoolArray> constant_pool =
-      desc.origin->NewConstantPool(isolate());
 
   // Compute size.
   int body_size = RoundUp(desc.instr_size, kObjectAlignment);
   int obj_size = Code::SizeFor(body_size);
 
   Handle<Code> code = NewCodeRaw(obj_size, immovable);
   DCHECK(isolate()->code_range() == NULL ||
          !isolate()->code_range()->valid() ||
          isolate()->code_range()->contains(code->address()));
 
   // The code object has not been fully initialized yet.  We rely on the
   // fact that no allocation will happen from this point on.
   DisallowHeapAllocation no_gc;
   code->set_gc_metadata(Smi::FromInt(0));
   code->set_ic_age(isolate()->heap()->global_ic_age());
   code->set_instruction_size(desc.instr_size);
   code->set_relocation_info(*reloc_info);
   code->set_flags(flags);
   code->set_raw_kind_specific_flags1(0);
   code->set_raw_kind_specific_flags2(0);
   code->set_is_crankshafted(crankshafted);
   code->set_deoptimization_data(*empty_fixed_array(), SKIP_WRITE_BARRIER);
   code->set_raw_type_feedback_info(Smi::FromInt(0));
   code->set_next_code_link(*undefined_value());
   code->set_handler_table(*empty_fixed_array(), SKIP_WRITE_BARRIER);
   code->set_prologue_offset(prologue_offset);
+  if (FLAG_enable_embedded_constant_pool) {
+    code->set_constant_pool_offset(desc.instr_size - desc.constant_pool_size);
+  }
   if (code->kind() == Code::OPTIMIZED_FUNCTION) {
     code->set_marked_for_deoptimization(false);
   }
 
   if (is_debug) {
     DCHECK(code->kind() == Code::FUNCTION);
     code->set_has_debug_break_slots(true);
   }
 
-  desc.origin->PopulateConstantPool(*constant_pool);
-  code->set_constant_pool(*constant_pool);
-
   // Allow self references to created code object by patching the handle to
   // point to the newly allocated Code object.
   if (!self_ref.is_null()) *(self_ref.location()) = *code;
 
   // Migrate generated code.
   // The generated code can contain Object** values (typically from handles)
   // that are dereferenced during the copy to point directly to the actual heap
   // objects. These pointers can include references to the code object itself,
   // through the self_reference parameter.
   code->CopyFrom(desc);
@@ skipping 921 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal