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

test/mjsunit/regress/regress-406.js

+// Copyright 2009 the V8 project authors. All rights reserved.
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+// modification, are permitted provided that the following conditions are
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+
+// 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");