text: // 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.
  
  const SMI_MAX = (1 << 30) - 1;
  const SMI_MIN = -(1 << 30);
  const ONE = 1;
  const ONE_HUNDRED = 100;
  
  const OBJ_42 = new (function() {
    this.valueOf = function() { return 42; };
  })();
  
  assertEquals(42, OBJ_42.valueOf());
  
  
  function Add1(x) {
    return x + 1;
  }
  
  function Add100(x) {
    return x + 100;
  }
  
  function Add1Reversed(x) {
    return 1 + x;
  }
  
  function Add100Reversed(x) {
    return 100 + x;
  }
  
  
  assertEquals(1, Add1(0));  // fast case
  assertEquals(1, Add1Reversed(0));  // fast case
  assertEquals(SMI_MAX + ONE, Add1(SMI_MAX), "smimax + 1");
  assertEquals(SMI_MAX + ONE, Add1Reversed(SMI_MAX), "1 + smimax");
  assertEquals(42 + ONE, Add1(OBJ_42));  // non-smi
  assertEquals(42 + ONE, Add1Reversed(OBJ_42));  // non-smi
  
  assertEquals(100, Add100(0));  // fast case
  assertEquals(100, Add100Reversed(0));  // fast case
  assertEquals(SMI_MAX + ONE_HUNDRED, Add100(SMI_MAX), "smimax + 100");
  assertEquals(SMI_MAX + ONE_HUNDRED, Add100Reversed(SMI_MAX), " 100 + smimax");
  assertEquals(42 + ONE_HUNDRED, Add100(OBJ_42));  // non-smi
  assertEquals(42 + ONE_HUNDRED, Add100Reversed(OBJ_42));  // non-smi
  
  
  
  function Sub1(x) {
    return x - 1;
  }
  
  function Sub100(x) {
    return x - 100;
  }
  
  function Sub1Reversed(x) {
    return 1 - x;
  }
  
  function Sub100Reversed(x) {
    return 100 - x;
  }
  
  
  assertEquals(0, Sub1(1));  // fast case
  assertEquals(-1, Sub1Reversed(2));  // fast case
  assertEquals(SMI_MIN - ONE, Sub1(SMI_MIN));  // overflow
  assertEquals(ONE - SMI_MIN, Sub1Reversed(SMI_MIN));  // overflow
  assertEquals(42 - ONE, Sub1(OBJ_42));  // non-smi
  assertEquals(ONE - 42, Sub1Reversed(OBJ_42));  // non-smi
  
  assertEquals(0, Sub100(100));  // fast case
  assertEquals(1, Sub100Reversed(99));  // fast case
  assertEquals(SMI_MIN - ONE_HUNDRED, Sub100(SMI_MIN));  // overflow
  assertEquals(ONE_HUNDRED - SMI_MIN, Sub100Reversed(SMI_MIN));  // overflow
  assertEquals(42 - ONE_HUNDRED, Sub100(OBJ_42));  // non-smi
  assertEquals(ONE_HUNDRED - 42, Sub100Reversed(OBJ_42));  // non-smi
  
  
  function Shr1(x) {
    return x >>> 1;
  }
  
  function Shr100(x) {
    return x >>> 100;
  }
  
  function Shr1Reversed(x) {
    return 1 >>> x;
  }
  
  function Shr100Reversed(x) {
    return 100 >>> x;
  }
  
  function Sar1(x) {
    return x >> 1;
  }
  
  function Sar100(x) {
    return x >> 100;
  }
  
  function Sar1Reversed(x) {
    return 1 >> x;
  }
  
  function Sar100Reversed(x) {
    return 100 >> x;
  }
  
  
  assertEquals(0, Shr1(1));
  assertEquals(0, Sar1(1));
  assertEquals(0, Shr1Reversed(2));
  assertEquals(0, Sar1Reversed(2));
  assertEquals(1610612736, Shr1(SMI_MIN));
  assertEquals(-536870912, Sar1(SMI_MIN));
  assertEquals(1, Shr1Reversed(SMI_MIN));
  assertEquals(1, Sar1Reversed(SMI_MIN));
  assertEquals(21, Shr1(OBJ_42));
  assertEquals(21, Sar1(OBJ_42));
  assertEquals(0, Shr1Reversed(OBJ_42));
  assertEquals(0, Sar1Reversed(OBJ_42));
  
  assertEquals(6, Shr100(100), "100 >>> 100");
  assertEquals(6, Sar100(100), "100 >> 100");
  assertEquals(12, Shr100Reversed(99));
  assertEquals(12, Sar100Reversed(99));
  assertEquals(201326592, Shr100(SMI_MIN));
  assertEquals(-67108864, Sar100(SMI_MIN));
  assertEquals(100, Shr100Reversed(SMI_MIN));
  assertEquals(100, Sar100Reversed(SMI_MIN));
  assertEquals(2, Shr100(OBJ_42));
  assertEquals(2, Sar100(OBJ_42));
  assertEquals(0, Shr100Reversed(OBJ_42));
  assertEquals(0, Sar100Reversed(OBJ_42));
  
  
  function Xor1(x) {
    return x ^ 1;
  }
  
  function Xor100(x) {
    return x ^ 100;
  }
  
  function Xor1Reversed(x) {
    return 1 ^ x;
  }
  
  function Xor100Reversed(x) {
    return 100 ^ x;
  }
  
  
  assertEquals(0, Xor1(1));
  assertEquals(3, Xor1Reversed(2));
  assertEquals(SMI_MIN + 1, Xor1(SMI_MIN));
  assertEquals(SMI_MIN + 1, Xor1Reversed(SMI_MIN));
  assertEquals(43, Xor1(OBJ_42));
  assertEquals(43, Xor1Reversed(OBJ_42));
  
  assertEquals(0, Xor100(100));
  assertEquals(7, Xor100Reversed(99));
  assertEquals(-1073741724, Xor100(SMI_MIN));
  assertEquals(-1073741724, Xor100Reversed(SMI_MIN));
  assertEquals(78, Xor100(OBJ_42));
  assertEquals(78, Xor100Reversed(OBJ_42));
  
  var x = 0x23; var y = 0x35;
  assertEquals(0x16, x ^ y);
  
  
  // Bitwise not.
  var v = 0;
  assertEquals(-1, ~v);
  v = SMI_MIN;
  assertEquals(0x3fffffff, ~v, "~smimin");
  v = SMI_MAX;
  assertEquals(-0x40000000, ~v, "~smimax");
  
  // Overflowing ++ and --.
  v = SMI_MAX;
  v++;
  assertEquals(0x40000000, v, "smimax++");
  v = SMI_MIN;
  v--;
  assertEquals(-0x40000001, v, "smimin--");
  
  // Not actually Smi operations.
  // Check that relations on unary ops work.
  var v = -1.2;
  assertTrue(v == v);
  assertTrue(v === v);
  assertTrue(v <= v);
  assertTrue(v >= v);
  assertFalse(v < v);
  assertFalse(v > v);
  assertFalse(v != v);
  assertFalse(v !== v);
  
  // Right hand side of unary minus is overwritable.
  v = 1.5
  assertEquals(-2.25, -(v * v));
  
  // Smi input to bitop gives non-smi result where the rhs is a float that
  // can be overwritten.
  var x1 = 0x10000000;
  var x2 = 0x40000002;
  var x3 = 0x40000000;
  assertEquals(0x40000000, x1 << (x2 - x3), "0x10000000<<1(1)");
  
  // Smi input to bitop gives non-smi result where the rhs could be overwritten
  // if it were a float, but it isn't.
  x1 = 0x10000000
  x2 = 4
  x3 = 2
  assertEquals(0x40000000, x1 << (x2 - x3), "0x10000000<<2(2)");
  
  
  // Test shift operators on non-smi inputs, giving smi and non-smi results.
  function testShiftNonSmis() {
    var pos_non_smi = 2000000000;
    var neg_non_smi = -pos_non_smi;
    var pos_smi = 1000000000;
    var neg_smi = -pos_smi;
  
    // Begin block A
    assertEquals(pos_non_smi, (pos_non_smi) >> 0);
    assertEquals(pos_non_smi, (pos_non_smi) >>> 0);
    assertEquals(pos_non_smi, (pos_non_smi) << 0);
    assertEquals(neg_non_smi, (neg_non_smi) >> 0);
    assertEquals(neg_non_smi + 0x100000000, (neg_non_smi) >>> 0);
    assertEquals(neg_non_smi, (neg_non_smi) << 0);
    assertEquals(pos_smi, (pos_smi) >> 0, "possmi >> 0");
    assertEquals(pos_smi, (pos_smi) >>> 0, "possmi >>>0");
    assertEquals(pos_smi, (pos_smi) << 0, "possmi << 0");
    assertEquals(neg_smi, (neg_smi) >> 0, "negsmi >> 0");
    assertEquals(neg_smi + 0x100000000, (neg_smi) >>> 0, "negsmi >>> 0");
    assertEquals(neg_smi, (neg_smi) << 0), "negsmi << 0";
  
    assertEquals(pos_non_smi / 2, (pos_non_smi) >> 1);
    assertEquals(pos_non_smi / 2, (pos_non_smi) >>> 1);
    assertEquals(-0x1194D800, (pos_non_smi) << 1);
    assertEquals(pos_non_smi / 8, (pos_non_smi) >> 3);
    assertEquals(pos_non_smi / 8, (pos_non_smi) >>> 3);
    assertEquals(-0x46536000, (pos_non_smi) << 3);
    assertEquals(0x73594000, (pos_non_smi) << 4);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) >> 0);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) >>> 0);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) << 0);
    assertEquals(pos_non_smi / 2, (pos_non_smi + 0.5) >> 1);
    assertEquals(pos_non_smi / 2, (pos_non_smi + 0.5) >>> 1);
    assertEquals(-0x1194D800, (pos_non_smi + 0.5) << 1);
    assertEquals(pos_non_smi / 8, (pos_non_smi + 0.5) >> 3);
    assertEquals(pos_non_smi / 8, (pos_non_smi + 0.5) >>> 3);
    assertEquals(-0x46536000, (pos_non_smi + 0.5) << 3);
    assertEquals(0x73594000, (pos_non_smi + 0.5) << 4);
  
    assertEquals(neg_non_smi / 2, (neg_non_smi) >> 1, "negnonsmi >> 1");
  
    assertEquals(neg_non_smi / 2 + 0x100000000 / 2, (neg_non_smi) >>> 1,
                 "negnonsmi >>> 1");
    assertEquals(0x1194D800, (neg_non_smi) << 1);
    assertEquals(neg_non_smi / 8, (neg_non_smi) >> 3);
    assertEquals(neg_non_smi / 8 + 0x100000000 / 8, (neg_non_smi) >>> 3);
    assertEquals(0x46536000, (neg_non_smi) << 3);
    assertEquals(-0x73594000, (neg_non_smi) << 4);
    assertEquals(neg_non_smi, (neg_non_smi - 0.5) >> 0);
    assertEquals(neg_non_smi + 0x100000000, (neg_non_smi - 0.5) >>> 0,
                 "negnonsmi.5 >>> 0");
    assertEquals(neg_non_smi, (neg_non_smi - 0.5) << 0);
    assertEquals(neg_non_smi / 2, (neg_non_smi - 0.5) >> 1);
    assertEquals(neg_non_smi / 2 + 0x100000000 / 2, (neg_non_smi - 0.5) >>> 1,
                 "negnonsmi.5 >>> 1");
    assertEquals(0x1194D800, (neg_non_smi - 0.5) << 1);
    assertEquals(neg_non_smi / 8, (neg_non_smi - 0.5) >> 3);
    assertEquals(neg_non_smi / 8 + 0x100000000 / 8, (neg_non_smi - 0.5) >>> 3);
    assertEquals(0x46536000, (neg_non_smi - 0.5) << 3);
    assertEquals(-0x73594000, (neg_non_smi - 0.5) << 4);
  
    assertEquals(pos_smi / 2, (pos_smi) >> 1);
    assertEquals(pos_smi / 2, (pos_smi) >>> 1);
    assertEquals(pos_non_smi, (pos_smi) << 1);
    assertEquals(pos_smi / 8, (pos_smi) >> 3);
    assertEquals(pos_smi / 8, (pos_smi) >>> 3);
    assertEquals(-0x2329b000, (pos_smi) << 3);
    assertEquals(0x73594000, (pos_smi) << 5);
    assertEquals(pos_smi, (pos_smi + 0.5) >> 0, "possmi.5 >> 0");
    assertEquals(pos_smi, (pos_smi + 0.5) >>> 0, "possmi.5 >>> 0");
    assertEquals(pos_smi, (pos_smi + 0.5) << 0, "possmi.5 << 0");
    assertEquals(pos_smi / 2, (pos_smi + 0.5) >> 1);
    assertEquals(pos_smi / 2, (pos_smi + 0.5) >>> 1);
    assertEquals(pos_non_smi, (pos_smi + 0.5) << 1);
    assertEquals(pos_smi / 8, (pos_smi + 0.5) >> 3);
    assertEquals(pos_smi / 8, (pos_smi + 0.5) >>> 3);
    assertEquals(-0x2329b000, (pos_smi + 0.5) << 3);
    assertEquals(0x73594000, (pos_smi + 0.5) << 5);
  
    assertEquals(neg_smi / 2, (neg_smi) >> 1);
    assertEquals(neg_smi / 2 + 0x100000000 / 2, (neg_smi) >>> 1);
    assertEquals(neg_non_smi, (neg_smi) << 1);
    assertEquals(neg_smi / 8, (neg_smi) >> 3);
    assertEquals(neg_smi / 8 + 0x100000000 / 8, (neg_smi) >>> 3);
    assertEquals(0x46536000, (neg_smi) << 4);
    assertEquals(-0x73594000, (neg_smi) << 5);
    assertEquals(neg_smi, (neg_smi - 0.5) >> 0, "negsmi.5 >> 0");
    assertEquals(neg_smi + 0x100000000, (neg_smi - 0.5) >>> 0, "negsmi.5 >>> 0");
    assertEquals(neg_smi, (neg_smi - 0.5) << 0, "negsmi.5 << 0");
    assertEquals(neg_smi / 2, (neg_smi - 0.5) >> 1);
    assertEquals(neg_smi / 2 + 0x100000000 / 2, (neg_smi - 0.5) >>> 1);
    assertEquals(neg_non_smi, (neg_smi - 0.5) << 1);
    assertEquals(neg_smi / 8, (neg_smi - 0.5) >> 3);
    assertEquals(neg_smi / 8 + 0x100000000 / 8, (neg_smi - 0.5) >>> 3);
    assertEquals(0x46536000, (neg_smi - 0.5) << 4);
    assertEquals(-0x73594000, (neg_smi - 0.5) << 5);
    // End block A
  
    // Repeat block A with 2^32 added to positive numbers and
    // 2^32 subtracted from negative numbers.
    // Begin block A repeat 1
    var two_32 = 0x100000000;
    var neg_32 = -two_32;
    assertEquals(pos_non_smi, (two_32 + pos_non_smi) >> 0);
    assertEquals(pos_non_smi, (two_32 + pos_non_smi) >>> 0);
    assertEquals(pos_non_smi, (two_32 + pos_non_smi) << 0);
    assertEquals(neg_non_smi, (neg_32 + neg_non_smi) >> 0);
    assertEquals(neg_non_smi + 0x100000000, (neg_32 + neg_non_smi) >>> 0);
    assertEquals(neg_non_smi, (neg_32 + neg_non_smi) << 0);
    assertEquals(pos_smi, (two_32 + pos_smi) >> 0, "2^32+possmi >> 0");
    assertEquals(pos_smi, (two_32 + pos_smi) >>> 0, "2^32+possmi >>> 0");
    assertEquals(pos_smi, (two_32 + pos_smi) << 0, "2^32+possmi << 0");
    assertEquals(neg_smi, (neg_32 + neg_smi) >> 0, "2^32+negsmi >> 0");
    assertEquals(neg_smi + 0x100000000, (neg_32 + neg_smi) >>> 0);
    assertEquals(neg_smi, (neg_32 + neg_smi) << 0, "2^32+negsmi << 0");
  
    assertEquals(pos_non_smi / 2, (two_32 + pos_non_smi) >> 1);
    assertEquals(pos_non_smi / 2, (two_32 + pos_non_smi) >>> 1);
    assertEquals(-0x1194D800, (two_32 + pos_non_smi) << 1);
    assertEquals(pos_non_smi / 8, (two_32 + pos_non_smi) >> 3);
    assertEquals(pos_non_smi / 8, (two_32 + pos_non_smi) >>> 3);
    assertEquals(-0x46536000, (two_32 + pos_non_smi) << 3);
    assertEquals(0x73594000, (two_32 + pos_non_smi) << 4);
    assertEquals(pos_non_smi, (two_32 + pos_non_smi + 0.5) >> 0);
    assertEquals(pos_non_smi, (two_32 + pos_non_smi + 0.5) >>> 0);
    assertEquals(pos_non_smi, (two_32 + pos_non_smi + 0.5) << 0);
    assertEquals(pos_non_smi / 2, (two_32 + pos_non_smi + 0.5) >> 1);
    assertEquals(pos_non_smi / 2, (two_32 + pos_non_smi + 0.5) >>> 1);
    assertEquals(-0x1194D800, (two_32 + pos_non_smi + 0.5) << 1);
    assertEquals(pos_non_smi / 8, (two_32 + pos_non_smi + 0.5) >> 3);
    assertEquals(pos_non_smi / 8, (two_32 + pos_non_smi + 0.5) >>> 3);
    assertEquals(-0x46536000, (two_32 + pos_non_smi + 0.5) << 3);
    assertEquals(0x73594000, (two_32 + pos_non_smi + 0.5) << 4);
  
    assertEquals(neg_non_smi / 2, (neg_32 + neg_non_smi) >> 1);
    assertEquals(neg_non_smi / 2 + 0x100000000 / 2, (neg_32 + neg_non_smi) >>> 1);
    assertEquals(0x1194D800, (neg_32 + neg_non_smi) << 1);
    assertEquals(neg_non_smi / 8, (neg_32 + neg_non_smi) >> 3);
    assertEquals(neg_non_smi / 8 + 0x100000000 / 8, (neg_32 + neg_non_smi) >>> 3);
    assertEquals(0x46536000, (neg_32 + neg_non_smi) << 3);
    assertEquals(-0x73594000, (neg_32 + neg_non_smi) << 4);
    assertEquals(neg_non_smi, (neg_32 + neg_non_smi - 0.5) >> 0);
    assertEquals(neg_non_smi + 0x100000000, (neg_32 + neg_non_smi - 0.5) >>> 0);
    assertEquals(neg_non_smi, (neg_32 + neg_non_smi - 0.5) << 0);
    assertEquals(neg_non_smi / 2, (neg_32 + neg_non_smi - 0.5) >> 1);
    assertEquals(neg_non_smi / 2 + 0x100000000 / 2, (neg_32 + neg_non_smi - 0.5)
                 >>> 1);
    assertEquals(0x1194D800, (neg_32 + neg_non_smi - 0.5) << 1);
    assertEquals(neg_non_smi / 8, (neg_32 + neg_non_smi - 0.5) >> 3);
    assertEquals(neg_non_smi / 8 + 0x100000000 / 8, (neg_32 + neg_non_smi - 0.5)
                 >>> 3);
    assertEquals(0x46536000, (neg_32 + neg_non_smi - 0.5) << 3);
    assertEquals(-0x73594000, (neg_32 + neg_non_smi - 0.5) << 4);
  
    assertEquals(pos_smi / 2, (two_32 + pos_smi) >> 1);
    assertEquals(pos_smi / 2, (two_32 + pos_smi) >>> 1);
    assertEquals(pos_non_smi, (two_32 + pos_smi) << 1);
    assertEquals(pos_smi / 8, (two_32 + pos_smi) >> 3);
    assertEquals(pos_smi / 8, (two_32 + pos_smi) >>> 3);
    assertEquals(-0x2329b000, (two_32 + pos_smi) << 3);
    assertEquals(0x73594000, (two_32 + pos_smi) << 5);
    assertEquals(pos_smi, (two_32 + pos_smi + 0.5) >> 0);
    assertEquals(pos_smi, (two_32 + pos_smi + 0.5) >>> 0);
    assertEquals(pos_smi, (two_32 + pos_smi + 0.5) << 0);
    assertEquals(pos_smi / 2, (two_32 + pos_smi + 0.5) >> 1);
    assertEquals(pos_smi / 2, (two_32 + pos_smi + 0.5) >>> 1);
    assertEquals(pos_non_smi, (two_32 + pos_smi + 0.5) << 1);
    assertEquals(pos_smi / 8, (two_32 + pos_smi + 0.5) >> 3);
    assertEquals(pos_smi / 8, (two_32 + pos_smi + 0.5) >>> 3);
    assertEquals(-0x2329b000, (two_32 + pos_smi + 0.5) << 3);
    assertEquals(0x73594000, (two_32 + pos_smi + 0.5) << 5);
  
    assertEquals(neg_smi / 2, (neg_32 + neg_smi) >> 1);
    assertEquals(neg_smi / 2 + 0x100000000 / 2, (neg_32 + neg_smi) >>> 1);
    assertEquals(neg_non_smi, (neg_32 + neg_smi) << 1);
    assertEquals(neg_smi / 8, (neg_32 + neg_smi) >> 3);
    assertEquals((neg_smi + 0x100000000) / 8, (neg_32 + neg_smi) >>> 3);
    assertEquals(0x46536000, (neg_32 + neg_smi) << 4);
    assertEquals(-0x73594000, (neg_32 + neg_smi) << 5);
    assertEquals(neg_smi, (neg_32 + neg_smi - 0.5) >> 0, "-2^32+negsmi.5 >> 0");
    assertEquals(neg_smi + 0x100000000, (neg_32 + neg_smi - 0.5) >>> 0);
    assertEquals(neg_smi, (neg_32 + neg_smi - 0.5) << 0, "-2^32+negsmi.5 << 0");
    assertEquals(neg_smi / 2, (neg_32 + neg_smi - 0.5) >> 1);
    assertEquals(neg_smi / 2 + 0x100000000 / 2, (neg_32 + neg_smi - 0.5) >>> 1);
    assertEquals(neg_non_smi, (neg_32 + neg_smi - 0.5) << 1);
    assertEquals(neg_smi / 8, (neg_32 + neg_smi - 0.5) >> 3);
    assertEquals(neg_smi / 8 + 0x100000000 / 8, (neg_32 + neg_smi - 0.5) >>> 3);
    assertEquals(0x46536000, (neg_32 + neg_smi - 0.5) << 4);
    assertEquals(-0x73594000, (neg_32 + neg_smi - 0.5) << 5);
    // End block A repeat 1
    // Repeat block A with shift amounts in variables initialized with
    // a constant.
    var zero = 0;
    var one = 1;
    var three = 3;
    var four = 4;
    var five = 5;
    // Begin block A repeat 2
    assertEquals(pos_non_smi, (pos_non_smi) >> zero);
    assertEquals(pos_non_smi, (pos_non_smi) >>> zero);
    assertEquals(pos_non_smi, (pos_non_smi) << zero);
    assertEquals(neg_non_smi, (neg_non_smi) >> zero);
    assertEquals(neg_non_smi + 0x100000000, (neg_non_smi) >>> zero);
    assertEquals(neg_non_smi, (neg_non_smi) << zero);
    assertEquals(pos_smi, (pos_smi) >> zero);
    assertEquals(pos_smi, (pos_smi) >>> zero);
    assertEquals(pos_smi, (pos_smi) << zero);
    assertEquals(neg_smi, (neg_smi) >> zero, "negsmi >> zero");
    assertEquals(neg_smi + 0x100000000, (neg_smi) >>> zero);
    assertEquals(neg_smi, (neg_smi) << zero, "negsmi << zero");
  
    assertEquals(pos_non_smi / 2, (pos_non_smi) >> one);
    assertEquals(pos_non_smi / 2, (pos_non_smi) >>> one);
    assertEquals(-0x1194D800, (pos_non_smi) << one);
    assertEquals(pos_non_smi / 8, (pos_non_smi) >> three);
    assertEquals(pos_non_smi / 8, (pos_non_smi) >>> three);
    assertEquals(-0x46536000, (pos_non_smi) << three);
    assertEquals(0x73594000, (pos_non_smi) << four);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) >> zero);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) >>> zero);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) << zero);
    assertEquals(pos_non_smi / 2, (pos_non_smi + 0.5) >> one);
    assertEquals(pos_non_smi / 2, (pos_non_smi + 0.5) >>> one);
    assertEquals(-0x1194D800, (pos_non_smi + 0.5) << one);
    assertEquals(pos_non_smi / 8, (pos_non_smi + 0.5) >> three);
    assertEquals(pos_non_smi / 8, (pos_non_smi + 0.5) >>> three);
    assertEquals(-0x46536000, (pos_non_smi + 0.5) << three);
    assertEquals(0x73594000, (pos_non_smi + 0.5) << four);
  
    assertEquals(neg_non_smi / 2, (neg_non_smi) >> one);
    assertEquals(neg_non_smi / 2 + 0x100000000 / 2, (neg_non_smi) >>> one);
    assertEquals(0x1194D800, (neg_non_smi) << one);
    assertEquals(neg_non_smi / 8, (neg_non_smi) >> three);
    assertEquals(neg_non_smi / 8 + 0x100000000 / 8, (neg_non_smi) >>> three);
    assertEquals(0x46536000, (neg_non_smi) << three);
    assertEquals(-0x73594000, (neg_non_smi) << four);
    assertEquals(neg_non_smi, (neg_non_smi - 0.5) >> zero);
    assertEquals(neg_non_smi + 0x100000000, (neg_non_smi - 0.5) >>> zero);
    assertEquals(neg_non_smi, (neg_non_smi - 0.5) << zero);
    assertEquals(neg_non_smi / 2, (neg_non_smi - 0.5) >> one);
    assertEquals(neg_non_smi / 2 + 0x100000000 / 2, (neg_non_smi - 0.5) >>> one);
    assertEquals(0x1194D800, (neg_non_smi - 0.5) << one);
    assertEquals(neg_non_smi / 8, (neg_non_smi - 0.5) >> three);
    assertEquals(neg_non_smi / 8 + 0x100000000 / 8, (neg_non_smi - 0.5)
        >>> three);
    assertEquals(0x46536000, (neg_non_smi - 0.5) << three);
    assertEquals(-0x73594000, (neg_non_smi - 0.5) << four);
  
    assertEquals(pos_smi / 2, (pos_smi) >> one);
    assertEquals(pos_smi / 2, (pos_smi) >>> one);
    assertEquals(pos_non_smi, (pos_smi) << one);
    assertEquals(pos_smi / 8, (pos_smi) >> three);
    assertEquals(pos_smi / 8, (pos_smi) >>> three);
    assertEquals(-0x2329b000, (pos_smi) << three);
    assertEquals(0x73594000, (pos_smi) << five);
    assertEquals(pos_smi, (pos_smi + 0.5) >> zero);
    assertEquals(pos_smi, (pos_smi + 0.5) >>> zero);
    assertEquals(pos_smi, (pos_smi + 0.5) << zero);
    assertEquals(pos_smi / 2, (pos_smi + 0.5) >> one);
    assertEquals(pos_smi / 2, (pos_smi + 0.5) >>> one);
    assertEquals(pos_non_smi, (pos_smi + 0.5) << one);
    assertEquals(pos_smi / 8, (pos_smi + 0.5) >> three);
    assertEquals(pos_smi / 8, (pos_smi + 0.5) >>> three);
    assertEquals(-0x2329b000, (pos_smi + 0.5) << three);
    assertEquals(0x73594000, (pos_smi + 0.5) << five);
  
    assertEquals(neg_smi / 2, (neg_smi) >> one);
    assertEquals(neg_smi / 2 + 0x100000000 / 2, (neg_smi) >>> one);
    assertEquals(neg_non_smi, (neg_smi) << one);
    assertEquals(neg_smi / 8, (neg_smi) >> three);
    assertEquals(neg_smi / 8 + 0x100000000 / 8, (neg_smi) >>> three);
    assertEquals(0x46536000, (neg_smi) << four);
    assertEquals(-0x73594000, (neg_smi) << five);
    assertEquals(neg_smi, (neg_smi - 0.5) >> zero);
    assertEquals(neg_smi + 0x100000000, (neg_smi - 0.5) >>> zero);
    assertEquals(neg_smi, (neg_smi - 0.5) << zero);
    assertEquals(neg_smi / 2, (neg_smi - 0.5) >> one);
    assertEquals(neg_smi / 2 + 0x100000000 / 2, (neg_smi - 0.5) >>> one);
    assertEquals(neg_non_smi, (neg_smi - 0.5) << one);
    assertEquals(neg_smi / 8, (neg_smi - 0.5) >> three);
    assertEquals(neg_smi / 8 + 0x100000000 / 8, (neg_smi - 0.5) >>> three);
    assertEquals(0x46536000, (neg_smi - 0.5) << four);
    assertEquals(-0x73594000, (neg_smi - 0.5) << five);
    // End block A repeat 2
  
    // Repeat previous block, with computed values in the shift variables.
    five = 0;
    while (five < 5 ) ++five;
    four = five - one;
    three = four - one;
    one = four - three;
    zero = one - one;
  
    // Begin block A repeat 3
    assertEquals(pos_non_smi, (pos_non_smi) >> zero);
    assertEquals(pos_non_smi, (pos_non_smi) >>> zero);
    assertEquals(pos_non_smi, (pos_non_smi) << zero);
    assertEquals(neg_non_smi, (neg_non_smi) >> zero);
    assertEquals(neg_non_smi + 0x100000000, (neg_non_smi) >>> zero);
    assertEquals(neg_non_smi, (neg_non_smi) << zero);
    assertEquals(pos_smi, (pos_smi) >> zero);
    assertEquals(pos_smi, (pos_smi) >>> zero);
    assertEquals(pos_smi, (pos_smi) << zero);
    assertEquals(neg_smi, (neg_smi) >> zero, "negsmi >> zero(2)");
    assertEquals(neg_smi + 0x100000000, (neg_smi) >>> zero);
    assertEquals(neg_smi, (neg_smi) << zero, "negsmi << zero(2)");
  
    assertEquals(pos_non_smi / 2, (pos_non_smi) >> one);
    assertEquals(pos_non_smi / 2, (pos_non_smi) >>> one);
    assertEquals(-0x1194D800, (pos_non_smi) << one);
    assertEquals(pos_non_smi / 8, (pos_non_smi) >> three);
    assertEquals(pos_non_smi / 8, (pos_non_smi) >>> three);
    assertEquals(-0x46536000, (pos_non_smi) << three);
    assertEquals(0x73594000, (pos_non_smi) << four);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) >> zero);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) >>> zero);
    assertEquals(pos_non_smi, (pos_non_smi + 0.5) << zero);
    assertEquals(pos_non_smi / 2, (pos_non_smi + 0.5) >> one);
    assertEquals(pos_non_smi / 2, (pos_non_smi + 0.5) >>> one);
    assertEquals(-0x1194D800, (pos_non_smi + 0.5) << one);
    assertEquals(pos_non_smi / 8, (pos_non_smi + 0.5) >> three);
    assertEquals(pos_non_smi / 8, (pos_non_smi + 0.5) >>> three);
    assertEquals(-0x46536000, (pos_non_smi + 0.5) << three);
    assertEquals(0x73594000, (pos_non_smi + 0.5) << four);
  
    assertEquals(neg_non_smi / 2, (neg_non_smi) >> one);
    assertEquals(neg_non_smi / 2 + 0x100000000 / 2, (neg_non_smi) >>> one);
    assertEquals(0x1194D800, (neg_non_smi) << one);
    assertEquals(neg_non_smi / 8, (neg_non_smi) >> three);
    assertEquals(neg_non_smi / 8 + 0x100000000 / 8, (neg_non_smi) >>> three);
    assertEquals(0x46536000, (neg_non_smi) << three);
    assertEquals(-0x73594000, (neg_non_smi) << four);
    assertEquals(neg_non_smi, (neg_non_smi - 0.5) >> zero);
    assertEquals(neg_non_smi + 0x100000000, (neg_non_smi - 0.5) >>> zero);
    assertEquals(neg_non_smi, (neg_non_smi - 0.5) << zero);
    assertEquals(neg_non_smi / 2, (neg_non_smi - 0.5) >> one);
    assertEquals(neg_non_smi / 2 + 0x100000000 / 2, (neg_non_smi - 0.5) >>> one);
    assertEquals(0x1194D800, (neg_non_smi - 0.5) << one);
    assertEquals(neg_non_smi / 8, (neg_non_smi - 0.5) >> three);
    assertEquals(neg_non_smi / 8 + 0x100000000 / 8, (neg_non_smi - 0.5)
        >>> three);
    assertEquals(0x46536000, (neg_non_smi - 0.5) << three);
    assertEquals(-0x73594000, (neg_non_smi - 0.5) << four);
  
    assertEquals(pos_smi / 2, (pos_smi) >> one);
    assertEquals(pos_smi / 2, (pos_smi) >>> one);
    assertEquals(pos_non_smi, (pos_smi) << one);
    assertEquals(pos_smi / 8, (pos_smi) >> three);
    assertEquals(pos_smi / 8, (pos_smi) >>> three);
    assertEquals(-0x2329b000, (pos_smi) << three);
    assertEquals(0x73594000, (pos_smi) << five);
    assertEquals(pos_smi, (pos_smi + 0.5) >> zero);
    assertEquals(pos_smi, (pos_smi + 0.5) >>> zero);
    assertEquals(pos_smi, (pos_smi + 0.5) << zero);
    assertEquals(pos_smi / 2, (pos_smi + 0.5) >> one);
    assertEquals(pos_smi / 2, (pos_smi + 0.5) >>> one);
    assertEquals(pos_non_smi, (pos_smi + 0.5) << one);
    assertEquals(pos_smi / 8, (pos_smi + 0.5) >> three);
    assertEquals(pos_smi / 8, (pos_smi + 0.5) >>> three);
    assertEquals(-0x2329b000, (pos_smi + 0.5) << three);
    assertEquals(0x73594000, (pos_smi + 0.5) << five);
  
    assertEquals(neg_smi / 2, (neg_smi) >> one);
    assertEquals(neg_smi / 2 + 0x100000000 / 2, (neg_smi) >>> one);
    assertEquals(neg_non_smi, (neg_smi) << one);
    assertEquals(neg_smi / 8, (neg_smi) >> three);
    assertEquals(neg_smi / 8 + 0x100000000 / 8, (neg_smi) >>> three);
    assertEquals(0x46536000, (neg_smi) << four);
    assertEquals(-0x73594000, (neg_smi) << five);
    assertEquals(neg_smi, (neg_smi - 0.5) >> zero, "negsmi.5 >> zero");
    assertEquals(neg_smi + 0x100000000, (neg_smi - 0.5) >>> zero);
    assertEquals(neg_smi, (neg_smi - 0.5) << zero, "negsmi.5 << zero");
    assertEquals(neg_smi / 2, (neg_smi - 0.5) >> one);
    assertEquals(neg_smi / 2 + 0x100000000 / 2, (neg_smi - 0.5) >>> one);
    assertEquals(neg_non_smi, (neg_smi - 0.5) << one);
    assertEquals(neg_smi / 8, (neg_smi - 0.5) >> three);
    assertEquals(neg_smi / 8 + 0x100000000 / 8, (neg_smi - 0.5) >>> three);
    assertEquals(0x46536000, (neg_smi - 0.5) << four);
    assertEquals(-0x73594000, (neg_smi - 0.5) << five);
    // End block A repeat 3
  
    // Test non-integer shift value
    assertEquals(5, 20.5 >> 2.4);
    assertEquals(5, 20.5 >> 2.7);
    var shift = 2.4;
    assertEquals(5, 20.5 >> shift);
    assertEquals(5, 20.5 >> shift + 0.3);
    shift = shift + zero;
    assertEquals(5, 20.5 >> shift);
    assertEquals(5, 20.5 >> shift + 0.3);
  }
  
  testShiftNonSmis();
  
  function intConversion() {
    function foo(x) {
      assertEquals(x, (x * 1.0000000001) | 0, "foo more " + x);
      assertEquals(x, x | 0, "foo " + x);
      if (x > 0) {
        assertEquals(x - 1, (x * 0.9999999999) | 0, "foo less " + x);
      } else {
        assertEquals(x + 1, (x * 0.9999999999) | 0, "foo less " + x);
      }
    }
    for (var i = 1; i < 0x80000000; i *= 2) {
      foo(i);
      foo(-i);
    }
    for (var i = 1; i < 1/0; i *= 2) {
      assertEquals(i | 0, (i * 1.0000000000000001) | 0, "b" + i);
      assertEquals(-i | 0, (i * -1.0000000000000001) | 0, "c" + i);
    }
    for (var i = 0.5; i > 0; i /= 2) {
      assertEquals(0, i | 0, "d" + i);
      assertEquals(0, -i | 0, "e" + i);
    }
  }
  
  intConversion();
  
  // Verify that we handle the (optimized) corner case of shifting by
  // zero even for non-smis.
  function shiftByZero(n) { return n << 0; }
  
  assertEquals(3, shiftByZero(3.1415));
  