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      1 // Copyright 2010 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
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     11 //       with the distribution.
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     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
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     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Test postfix count operations with smis.
     29 
     30 function f1() { var x = 0x3fffffff; x++; return x; }
     31 assertEquals(0x40000000, f1());
     32 
     33 
     34 function f2() { var x = -0x40000000; x--; return x; }
     35 assertEquals(-0x40000001, f2());
     36 
     37 
     38 function f3(x) { x = x & 0x3fffffff; x++; return x; }
     39 assertEquals(0x40000000, f3(0x3fffffff));
     40 
     41 
     42 function f4() {
     43   var i;
     44   for (i = 0x3ffffffe; i <= 0x3fffffff; i++) {}
     45   return i;
     46 }
     47 assertEquals(0x40000000, f4());
     48 
     49 
     50 function f5() {
     51   var i;
     52   for (i = -0x3fffffff; i >= -0x40000000; i--) {}
     53   return i;
     54 }
     55 assertEquals(-0x40000001, f5());
     56 
     57 
     58 function f6() { var x = 0x3fffffff; x++; return x+1; }
     59 assertEquals(0x40000001, f6());
     60 
     61 
     62 function f7() {
     63   var i;
     64   for (i = 0x3ffffffd; i <= 0x3ffffffe; i++) {}
     65   i++; i = i + 1;
     66   return i;
     67 }
     68 assertEquals(0x40000001, f7());
     69 
     70 
     71 function f8() {
     72   var i;
     73   for (i = 0x3ffffffd; i <= 0x3fffffff; i++) {}
     74   i++; i++;
     75   return i;
     76 }
     77 assertEquals(0x40000002, f8());
     78 
     79 
     80 function f9() {
     81   var i;
     82   for (i = 0; i < 42; i++) {
     83     return 42;
     84   }
     85 }
     86 assertEquals(42, f9());
     87 
     88 
     89 function f10(x) {
     90   for (x = 0; x < 4; x++) {}
     91 }
     92 f10(42);
     93