Out-of-line constant pool on Arm: Stage 2 - Introduce ConstantPoolArray object.

test/cctest/test-constantpool.cc

+// Copyright 2013 the V8 project authors. All rights reserved.
+
+// Test constant pool array code.
+
+#include "v8.h"
+
+#include "factory.h"
+#include "objects.h"
+#include "cctest.h"
+
+using namespace v8::internal;
+
+
+TEST(ConstantPool) {
+  LocalContext context;
+  Isolate* isolate = CcTest::i_isolate();
+  Heap* heap = isolate->heap();
+  Factory* factory = isolate->factory();
+  v8::HandleScope scope(context->GetIsolate());
+
+  // Check construction.
+  Handle<ConstantPoolArray> array = factory->NewConstantPoolArray(3, 2, 1);
+  CHECK_EQ(array->count_of_int64_entries(), 3);
+  CHECK_EQ(array->count_of_ptr_entries(), 2);
+  CHECK_EQ(array->count_of_int32_entries(), 1);
+  CHECK_EQ(array->length(), 6);
+  CHECK_EQ(array->first_int64_index(), 0);
+  CHECK_EQ(array->first_ptr_index(), 3);
+  CHECK_EQ(array->first_int32_index(), 5);
+
+  // Check getters and setters.
+  int64_t big_number = V8_2PART_UINT64_C(0x12345678, 9ABCDEF0);
+  Handle<Object> object = factory->NewHeapNumber(4.0);
+  array->set(0, big_number);
+  array->set(1, 0.5);
+  array->set(3, *object);
+  array->set(5, 50);
+  CHECK_EQ(array->get_int64_entry(0), big_number);
+  CHECK_EQ(array->get_int64_entry_as_double(1), 0.5);
+  CHECK_EQ(array->get_ptr_entry(3), *object);
+  CHECK_EQ(array->get_int32_entry(5), 50);
+
+  // Check MaybeObject getter.
+  Object* value = array->get(1)->ToObjectChecked();
+  CHECK(value->IsNumber());
+  CHECK_EQ(0.5, value->Number());
+  value = array->get(5)->ToObjectChecked();
+  CHECK(value->IsNumber());
+  CHECK_EQ(50.0, value->Number());
+  value = array->get(3)->ToObjectChecked();
+  CHECK_EQ(*object, value);
+
+  // Check pointers are updated on GC.
+  Object* old_ptr = array->get(3)->ToObjectChecked();
+  CHECK_EQ(*object, old_ptr);
+  heap->CollectGarbage(NEW_SPACE);
+  Object* new_ptr = array->get(3)->ToObjectChecked();
+  CHECK_NE(*object, old_ptr);
+  CHECK_EQ(*object, new_ptr);
+}