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      1 // Copyright 2014 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 var error = "error";
      6 function counter(x) {
      7   return (function() { if (x-- == 0) throw error;});
      8 }
      9 
     10 function Module() {
     11   "use asm";
     12 
     13   function w0(f) {
     14     while (1) f();
     15     return 108;
     16   }
     17 
     18   function w1(f) {
     19     if (1) while (1) f();
     20     return 109;
     21   }
     22 
     23   function w2(f) {
     24     if (1) while (1) f();
     25     else while (1) f();
     26     return 110;
     27   }
     28 
     29   function w3(f) {
     30     if (0) while (1) f();
     31     return 111;
     32   }
     33 
     34   return { w0: w0, w1: w1, w2: w2, w3: w3 };
     35 }
     36 
     37 var m = Module();
     38 assertThrowsEquals(function() { m.w0(counter(5)) }, error);
     39 assertThrowsEquals(function() { m.w1(counter(5)) }, error);
     40 assertThrowsEquals(function() { m.w2(counter(5)) }, error);
     41 assertEquals(111, m.w3(counter(5)));
     42