Version 3.9.1
Fixed memory leak in NativeObjectsExplorer::FindOrAddGroupInfo (Chromium issue 112315).
Fixed a crash in dev tools (Chromium issue 107996).
Added 'dependencies_traverse': 1 to v8 GYP target.
Performance and stability improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@10594 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 684ec15..670bd05 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -4034,27 +4034,41 @@
}
-void MacroAssembler::LoadGlobalInitialConstructedArrayMap(
+void MacroAssembler::LoadTransitionedArrayMapConditional(
+ ElementsKind expected_kind,
+ ElementsKind transitioned_kind,
+ Register map_in_out,
+ Register scratch,
+ Label* no_map_match) {
+ // Load the global or builtins object from the current context.
+ movq(scratch, Operand(rsi, Context::SlotOffset(Context::GLOBAL_INDEX)));
+ movq(scratch, FieldOperand(scratch, GlobalObject::kGlobalContextOffset));
+
+ // Check that the function's map is the same as the expected cached map.
+ int expected_index =
+ Context::GetContextMapIndexFromElementsKind(expected_kind);
+ cmpq(map_in_out, Operand(scratch, Context::SlotOffset(expected_index)));
+ j(not_equal, no_map_match);
+
+ // Use the transitioned cached map.
+ int trans_index =
+ Context::GetContextMapIndexFromElementsKind(transitioned_kind);
+ movq(map_in_out, Operand(scratch, Context::SlotOffset(trans_index)));
+}
+
+
+void MacroAssembler::LoadInitialArrayMap(
Register function_in, Register scratch, Register map_out) {
ASSERT(!function_in.is(map_out));
Label done;
movq(map_out, FieldOperand(function_in,
JSFunction::kPrototypeOrInitialMapOffset));
if (!FLAG_smi_only_arrays) {
- // Load the global or builtins object from the current context.
- movq(scratch, Operand(rsi, Context::SlotOffset(Context::GLOBAL_INDEX)));
- movq(scratch, FieldOperand(scratch, GlobalObject::kGlobalContextOffset));
-
- // Check that the function's map is same as the cached map.
- cmpq(map_out,
- Operand(scratch,
- Context::SlotOffset(Context::SMI_JS_ARRAY_MAP_INDEX)));
- j(not_equal, &done);
-
- // Use the cached transitioned map.
- movq(map_out,
- Operand(scratch,
- Context::SlotOffset(Context::OBJECT_JS_ARRAY_MAP_INDEX)));
+ LoadTransitionedArrayMapConditional(FAST_SMI_ONLY_ELEMENTS,
+ FAST_ELEMENTS,
+ map_out,
+ scratch,
+ &done);
}
bind(&done);
}