Revision: 19545
Author: [email protected]
Date: Tue Feb 25 15:09:47 2014 UTC
Log: Mark HCompareMap as having Tagged representation
BUG=chromium:346636
LOG=y
[email protected]
Review URL: https://codereview.chromium.org/176923013
http://code.google.com/p/v8/source/detail?r=19545
Added:
/branches/bleeding_edge/test/mjsunit/regress/regress-crbug-346636.js
Modified:
/branches/bleeding_edge/src/hydrogen-instructions.h
=======================================
--- /dev/null
+++ /branches/bleeding_edge/test/mjsunit/regress/regress-crbug-346636.js
Tue Feb 25 15:09:47 2014 UTC
@@ -0,0 +1,31 @@
+// 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 assertSame(expected, found) {
+ if (found === expected) {
+ if (expected !== 0 || (1 / expected) == (1 / found)) return;
+ }
+ return;
+};
+
+function foo(x) {
+ return x.bar;
+}
+
+function getter1() {
+ assertSame(this, this);
+}
+var o1 = Object.defineProperty({}, "bar", { get: getter1 });
+foo(o1);
+foo(o1);
+
+function getter2() {
+ assertSame(this, this);
+}
+var o2 = Object.defineProperty({}, "bar", { get: getter2 });
+foo(o2);
+%OptimizeFunctionOnNextCall(foo);
+foo(o2);
=======================================
--- /branches/bleeding_edge/src/hydrogen-instructions.h Wed Feb 19 13:51:49
2014 UTC
+++ /branches/bleeding_edge/src/hydrogen-instructions.h Tue Feb 25 15:09:47
2014 UTC
@@ -1617,6 +1617,7 @@
map->AddDependentCompilationInfo(
DependentCode::kPrototypeCheckGroup, info);
}
+ set_representation(Representation::Tagged());
}
int known_successor_index_;
--
--
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