Attached Fuzzer test caught a serious regression after JDK-8273454. Note how the result is different in C2:

$ ~/trunks/jdk/build/linux-x86_64-server-fastdebug/images/jdk/bin/java -Xint Test | grep Test.instanceCount | uniq
Test.instanceCount Test.iFld Test.byFld = -2635249129509180159,2,0

 ~/trunks/jdk/build/linux-x86_64-server-fastdebug/images/jdk/bin/java -XX:TieredStopAtLevel=1 Test | grep Test.instanceCount | uniq
Test.instanceCount Test.iFld Test.byFld = -2635249129509180159,2,0

$ ~/trunks/jdk/build/linux-x86_64-server-fastdebug/images/jdk/bin/java -XX:-TieredCompilation Test | grep Test.instanceCount | uniq
Test.instanceCount Test.iFld Test.byFld = 2635249177264977449,2,0


Minimized test case:

public class Test {
    public static int f;

    public static void main(String... strArr) {
        for (int c = 0; c < 2; c++) {
            f += c;
            f *= -1;
        }
        f &= f;
        System.out.println("final = " + f);
    }
}

$ ~/trunks/jdk/build/linux-x86_64-server-fastdebug/images/jdk/bin/java -Xint Test
final = -1

$ ~/trunks/jdk/build/linux-x86_64-server-fastdebug/images/jdk/bin/java -Xcomp -XX:-TieredCompilation Test
final = 1

I suspect the trouble is here:

Node *AndINode::Ideal(PhaseGVN *phase, bool can_reshape) {
  // Special case constant AND mask
  const TypeInt *t2 = phase->type( in(2) )->isa_int();
  if( !t2 || !t2->is_con() ) return MulNode::Ideal(phase, can_reshape); // <--- calls new code through here

So while ((-x) * (-y)) == (x * y) is always true indeed, ((-x) & (-y)) == (x & y) is not!