src/third_party/v8/test/mjsunit/compiler/loopcount.js

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// Test postfix count operations with smis.

function f1() { var x = 0x3fffffff; x++; return x; }
assertEquals(0x40000000, f1());


function f2() { var x = -0x40000000; x--; return x; }
assertEquals(-0x40000001, f2());


function f3(x) { x = x & 0x3fffffff; x++; return x; }
assertEquals(0x40000000, f3(0x3fffffff));


function f4() {
  var i;
  for (i = 0x3ffffffe; i <= 0x3fffffff; i++) {}
  return i;
}
assertEquals(0x40000000, f4());


function f5() {
  var i;
  for (i = -0x3fffffff; i >= -0x40000000; i--) {}
  return i;
}
assertEquals(-0x40000001, f5());


function f6() { var x = 0x3fffffff; x++; return x+1; }
assertEquals(0x40000001, f6());


function f7() {
  var i;
  for (i = 0x3ffffffd; i <= 0x3ffffffe; i++) {}
  i++; i = i + 1;
  return i;
}
assertEquals(0x40000001, f7());


function f8() {
  var i;
  for (i = 0x3ffffffd; i <= 0x3fffffff; i++) {}
  i++; i++;
  return i;
}
assertEquals(0x40000002, f8());


function f9() {
  var i;
  for (i = 0; i < 42; i++) {
    return 42;
  }
}
assertEquals(42, f9());


function f10(x) {
  for (x = 0; x < 4; x++) {}
}
f10(42);