#include "src/compiler/code-generator-impl.h"
#include "src/compiler/linkage.h"
#include "src/compiler/pipeline.h"
+#include "src/snapshot/serialize.h" // TODO(turbofan): RootIndexMap
namespace v8 {
namespace internal {
bool CodeGenerator::IsMaterializableFromRoot(
Handle<HeapObject> object, Heap::RootListIndex* index_return) {
if (linkage()->GetIncomingDescriptor()->IsJSFunctionCall()) {
- // Check if {object} is one of the non-smi roots that cannot be written
- // after initialization.
- for (int i = 0; i < Heap::kSmiRootsStart; ++i) {
- Heap::RootListIndex const index = static_cast<Heap::RootListIndex>(i);
- if (!Heap::RootCanBeWrittenAfterInitialization(index) &&
- *object == isolate()->heap()->root(index)) {
- *index_return = index;
- return true;
- }
+ RootIndexMap map(isolate());
+ int root_index = map.Lookup(*object);
+ if (root_index != RootIndexMap::kInvalidRootIndex) {
+ *index_return = static_cast<Heap::RootListIndex>(root_index);
+ return true;
}
}
return false;