The replace_parallel_iv() function crashes in a specific edge case. Not sure if the crash happens on platforms other than x86, but the result of a division operation can not be represented.

Small test case below, run with -XX:-TieredCompilation -XX:-BackgroundCompilation for reproduction.

Contribution forthcoming shortly with proposed fix.

public class TestImpossibleIV {

  static private void testMethod() {
    int sum = 0;
    // A unit count-down loop which has an induction variable with
    // MIN_VALUE stride.
    for (int i = 100000; i >= 0; i--) {
      sum += Integer.MIN_VALUE;
    }
  }

  public static void main(String[] args) {
    testMethod();
  }
}