test/mjsunit/compiler/regress-3136962.js

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// Reduced regression test for a global value numbering bug.  Original
// value of global variable height was reused even after reassignment.

var height = 267;

var count = 0;
function inner() { height = 0; ++count; }
function outer() {}

function test() {
  for (var i = 0; i < height; ++i) {
    for (var j = -6; j < 7; ++j) {
      if (i + j < 0 || i + j >= height) continue;
      for (var k = -6; k < 7; ++k) {
        inner();
      }
    }
    outer();
  }
}

test();

assertEquals(13, count);