ARM: Check for minus zero when converting binary operation result to smi

test/mjsunit/regress/regress-1278.js

Index: test/mjsunit/regress/regress-1278.js
===================================================================
--- test/mjsunit/regress/regress-1278.js	(revision 0)
+++ test/mjsunit/regress/regress-1278.js	(revision 0)
@@ -0,0 +1,69 @@
+// Copyright 2010 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.
+
+// See: http://code.google.com/p/v8/issues/detail?id=1278
+
+// Test that that handling of 0/-0 is correct for binary operations when the
+// TypeRecordingBinaryOpStub transitions through different states.
+
+function add(x, y) {
+  return x + y;
+}
+
+function sub(x, y) {
+  return x - y;
+}
+
+function mul(x, y) {
+  return x * y;
+}
+
+function div(x, y) {
+  return x / y;
+}
+
+for (var i = 0; i < 10; i++) {
+  assertEquals(0, add(0, 0));
+  assertEquals(0, add(0, -0));
+  assertEquals(0, add(-0, 0));
+  assertEquals(-0, add(-0, -0));
+
+  assertEquals(0, sub(0, 0));
+  assertEquals(0, sub(0, -0));
+  assertEquals(-0, sub(-0, 0));
+  assertEquals(0, sub(-0, -0));
+
+  assertEquals(0, mul(0, 0));
+  assertEquals(-0, mul(0, -0));
+  assertEquals(-0, mul(-0, 0));
+  assertEquals(0, mul(-0, -0));
+
+  assertEquals(0, div(0, 1));
+  assertEquals(-0, div(0, -1));
+  assertEquals(-0, div(-0, 1));
+  assertEquals(0, div(-0, -1));
+}
Property changes on: test/mjsunit/regress/regress-1278.js
___________________________________________________________________
Added: svn:eol-style
   + LF