Fix ARM compiler crash in short-circuited boolean expressions....

test/mjsunit/regress/regress-406.js

Index: test/mjsunit/regress/regress-406.js
===================================================================
--- test/mjsunit/regress/regress-406.js	(revision 0)
+++ test/mjsunit/regress/regress-406.js	(revision 0)
@@ -0,0 +1,69 @@
+// Copyright 2009 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.
+
+// Test of constant folding of boolean-valued expressions.
+
+// See http://code.google.com/p/v8/issues/detail?id=406
+
+assertFalse(typeof(0) == "zero");
+assertTrue(typeof(0) != "zero");
+
+// The and and or truth tables with both operands constant.
+assertFalse(typeof(0) == "zero" && typeof(0) == "zero");
+assertFalse(typeof(0) == "zero" && typeof(0) != "zero");
+assertFalse(typeof(0) != "zero" && typeof(0) == "zero");
+assertTrue(typeof(0) != "zero" && typeof(0) != "zero");
+
+assertFalse(typeof(0) == "zero" || typeof(0) == "zero");
+assertTrue(typeof(0) == "zero" || typeof(0) != "zero");
+assertTrue(typeof(0) != "zero" || typeof(0) == "zero");
+assertTrue(typeof(0) != "zero" || typeof(0) != "zero");
+
+// Same with just the left operand constant.
+// Helper function to prevent simple constant folding.
+function one() { return 1; }
+
+assertFalse(typeof(0) == "zero" && one() < 0);
+assertFalse(typeof(0) == "zero" && one() > 0);
+assertFalse(typeof(0) != "zero" && one() < 0);
+assertTrue(typeof(0) != "zero" && one() > 0);
+
+assertFalse(typeof(0) == "zero" || one() < 0);
+assertTrue(typeof(0) == "zero" || one() > 0);
+assertTrue(typeof(0) != "zero" || one() < 0);
+assertTrue(typeof(0) != "zero" || one() > 0);
+
+// Same with just the right operand constant.
+assertFalse(one() < 0 && typeof(0) == "zero");
+assertFalse(one() < 0 && typeof(0) != "zero");
+assertFalse(one() > 0 && typeof(0) == "zero");
+assertTrue(one() > 0 && typeof(0) != "zero");
+
+assertFalse(one() < 0 || typeof(0) == "zero");
+assertTrue(one() < 0 || typeof(0) != "zero");
+assertTrue(one() > 0 || typeof(0) == "zero");
+assertTrue(one() > 0 || typeof(0) != "zero");