Update to V8 with partial snapshots. This is taken from the partial_snapshot branch of V8.
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 96b45e8..56bbc20 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -1585,6 +1585,18 @@
}
+void MacroAssembler::CheckMap(Register obj,
+ Handle<Map> map,
+ Label* fail,
+ bool is_heap_object) {
+ if (!is_heap_object) {
+ JumpIfSmi(obj, fail);
+ }
+ Cmp(FieldOperand(obj, HeapObject::kMapOffset), map);
+ j(not_equal, fail);
+}
+
+
Condition MacroAssembler::IsObjectStringType(Register heap_object,
Register map,
Register instance_type) {