BUG=chromium:374838
LOG=y
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/
299713003
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21401
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
: kind_(kind) {
SetOperandAt(0, context);
SetOperandAt(1, object);
+ SetChangesFlag(kArrayLengths);
SetChangesFlag(kNewSpacePromotion);
set_representation(Representation::Tagged());
if (IsFastSmiOrObjectElementsKind(kind)) {
return true;
}
case kArrayShift: {
- // Something in here seems to be causing crbug.com/374838.
- // TODO(bmeurer): Investigate the problem and re-enable this code.
- return false;
-
if (receiver_map.is_null()) return false;
if (receiver_map->instance_type() != JS_ARRAY_TYPE) return false;
ElementsKind kind = receiver_map->elements_kind();
--- /dev/null
+// 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.
+
+// Flags: --allow-natives-syntax
+
+function foo() {
+ var a = [0];
+ result = 0;
+ for (var i = 0; i < 4; i++) {
+ result += a.length;
+ a.shift();
+ }
+ return result;
+}
+
+assertEquals(1, foo());
+assertEquals(1, foo());
+%OptimizeFunctionOnNextCall(foo);
+assertEquals(1, foo());