summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/v8/test/mjsunit/regress/regress-2261.js
diff options
context:
space:
mode:
Diffstat (limited to 'src/3rdparty/v8/test/mjsunit/regress/regress-2261.js')
-rw-r--r--src/3rdparty/v8/test/mjsunit/regress/regress-2261.js113
1 files changed, 113 insertions, 0 deletions
diff --git a/src/3rdparty/v8/test/mjsunit/regress/regress-2261.js b/src/3rdparty/v8/test/mjsunit/regress/regress-2261.js
new file mode 100644
index 0000000..000e07d
--- /dev/null
+++ b/src/3rdparty/v8/test/mjsunit/regress/regress-2261.js
@@ -0,0 +1,113 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax
+
+// Test materialization of the arguments object when deoptimizing a
+// strict mode closure after modifying an argument.
+
+(function () {
+ var forceDeopt = 0;
+ function inner(x) {
+ "use strict";
+ x = 2;
+ // Do not remove this %DebugPrint as it makes sure the deopt happens
+ // after the assignment and is not hoisted above the assignment.
+ %DebugPrint(arguments[0]);
+ forceDeopt + 1;
+ return arguments[0];
+ }
+
+ assertEquals(1, inner(1));
+ assertEquals(1, inner(1));
+ %OptimizeFunctionOnNextCall(inner);
+ assertEquals(1, inner(1));
+ forceDeopt = "not a number";
+ assertEquals(1, inner(1));
+})();
+
+
+// Test materialization of the arguments object when deoptimizing an
+// inlined strict mode closure after modifying an argument.
+
+(function () {
+ var forceDeopt = 0;
+ function inner(x) {
+ "use strict";
+ x = 2;
+ // Do not remove this %DebugPrint as it makes sure the deopt happens
+ // after the assignment and is not hoisted above the assignment.
+ %DebugPrint(arguments[0]);
+ forceDeopt + 1;
+ return arguments[0];
+ }
+
+ function outer(x) {
+ return inner(x);
+ }
+
+ assertEquals(1, outer(1));
+ assertEquals(1, outer(1));
+ %OptimizeFunctionOnNextCall(outer);
+ assertEquals(1, outer(1));
+ forceDeopt = "not a number";
+ assertEquals(1, outer(1));
+})();
+
+
+// Test materialization of the multiple arguments objects when
+// deoptimizing several inlined closure after modifying an argument.
+
+(function () {
+ var forceDeopt = 0;
+ function inner(x,y,z) {
+ "use strict";
+ x = 3;
+ // Do not remove this %DebugPrint as it makes sure the deopt happens
+ // after the assignment and is not hoisted above the assignment.
+ %DebugPrint(arguments[0]);
+ forceDeopt + 1;
+ return arguments[0];
+ }
+
+ function middle(x) {
+ "use strict";
+ x = 2;
+ return inner(10*x, 20*x, 30*x) + arguments[0];
+ }
+
+ function outer(x) {
+ return middle(x);
+ }
+
+ assertEquals(21, outer(1));
+ assertEquals(21, outer(1));
+ %OptimizeFunctionOnNextCall(outer);
+ assertEquals(21, outer(1));
+ forceDeopt = "not a number";
+ assertEquals(21, outer(1));
+})();