text: load("1d8ada728956c1a3d52d68d1d4d6dd52.js");
  // Copyright 2016 the V8 project authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  // Flags: --allow-natives-syntax
  
  function test(f) {
    assertTrue(f(0));
    assertTrue(f(Number.MIN_SAFE_INTEGER));
    assertFalse(f(Number.MIN_SAFE_INTEGER - 13));
    assertTrue(f(Number.MIN_SAFE_INTEGER + 13));
    assertTrue(f(Number.MAX_SAFE_INTEGER));
    assertFalse(f(Number.MAX_SAFE_INTEGER + 23));
    assertTrue(f(Number.MAX_SAFE_INTEGER - 23));
    assertFalse(f(Number.MIN_VALUE));
    assertFalse(f(Number.MAX_VALUE));
    assertFalse(f(Number.NaN));
    assertFalse(f(Number.POSITIVE_INFINITY));
    assertFalse(f(Number.NEGATIVE_INFINITY));
    assertFalse(f(1 / 0));
    assertFalse(f(-1 / 0));
    assertFalse(f(Number.EPSILON));
  
    var near_upper = Math.pow(2, 52);
    assertTrue(f(near_upper));
    assertFalse(f(2 * near_upper));
    assertTrue(f(2 * near_upper - 1));
    assertTrue(f(2 * near_upper - 2));
    assertFalse(f(2 * near_upper + 1));
    assertFalse(f(2 * near_upper + 2));
    assertFalse(f(2 * near_upper + 7));
  
    var near_lower = -near_upper;
    assertTrue(f(near_lower));
    assertFalse(f(2 * near_lower));
    assertTrue(f(2 * near_lower + 1));
    assertTrue(f(2 * near_lower + 2));
    assertFalse(f(2 * near_lower - 1));
    assertFalse(f(2 * near_lower - 2));
    assertFalse(f(2 * near_lower - 7));
  }
  
  function f(x) {
    return Number.isSafeInteger(+x);
  }
  
  test(f);
  test(f);
  %OptimizeFunctionOnNextCall(f);
  test(f);
  