ADDITIONAL SYSTEM INFORMATION :
> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.5 LTS"

> java -version
openjdk version "11.0.19-internal" 2023-04-18
OpenJDK Runtime Environment (fastdebug build 11.0.19-internal+0-adhoc.simon.jdk11u-dev)
OpenJDK 64-Bit Server VM (fastdebug build 11.0.19-internal+0-adhoc.simon.jdk11u-dev, mixed mode)

> javac -version
javac 11.0.19-internal

A DESCRIPTION OF THE PROBLEM :
HotSpot crashed with the following assertion:

# Internal Error (/home/simon/JVMs/jdk11u-dev/src/hotspot/share/opto/loopnode.cpp:3910), pid=2067755, tid=2067767
# assert(!in->is_CFG()) failed: CFG Node with no controlling input?

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. javac T.java
2. java -XX:-BackgroundCompilation -XX:-PrintCompilation --illegal-access=deny T

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No crash
ACTUAL -
HotSpot crashed

---------- BEGIN SOURCE ----------
import java.io.PrintStream;

class T {
  static long z;
  float r;

  static long foo(int u) {
    int a = 98, d = 10;
    int c, e, f, g;
    int h = 22003;
    int l[] = new int[256];
    double m = 2.7574;
    boolean b = false;
    short s = 27815;
    float q[] = new float[256];
    do {
      for (c = 1; c < 4; ++c) {
        e = 1;
        do z += u - a;
        while (++e < 2);
        if (b) break;
      }
      u -= u;
      for (f = 1; f < 4; ++f) {
        l[a] = (int) 43L;
        if (b) continue;
        l[a - 1] &= c;
        try {
          Object w = new Object();
          for (int k = 750; k < 14733; k += 1) AxOutputRedirectionHelper.redirect();
        } catch (ArithmeticException a_e) {
        }
        try {
          g = u / u;
        } catch (ArithmeticException a_e) {
        }
        z = 27670;
        q[f - 1] = 41725;
        s += h;
      }
    } while (++a < 145);
    long rr = d + Double.doubleToLongBits(m);
    return rr;
  }

  int boo() {
    r /= foo(56306);
    long rr = 1;
    return (int) rr;
  }

  void zoo() {
    r -= boo();
  }

  public static void main(String[] g) {
    T t = new T();
    t.zoo();
  }

  static class AxOutputRedirectionHelper {
    static PrintStream devNull;

    static void redirect() {
      System.setOut(devNull);
    }
  }
}

---------- END SOURCE ----------

FREQUENCY : always