The next test shows strange OSR compilation behavior. C2 does osr recompilations of the loop in test() method until PerBytecodeRecompilationCutoff (200) is reached:

public class Test {
  private static final int ITERS = 10000000;
  public static void main(String args[]) {
    Test t = new Test();
    for (int i=0; i<10; i++) {
      test(t, 7);
    }
  }
  static Test test(Test t, int m) {
    int i = -(ITERS/2);
    if (i == 0) return null;
    Test v = null;
    while(i < ITERS) {
      if ((i&m) == 0) {
        v = t;
      }
      i++;
    }
    return v;
  }
}

% java -server -Xbatch -XX:+PrintCompilation -XX:-TieredCompilation -XX:CICompilerCount=1 Test
    414 1 % b Test::test @ 11 (33 bytes)
    436 1 % Test::test @ -2 (33 bytes) made not entrant
    436 2 % b Test::test @ 11 (33 bytes)
    445 2 % Test::test @ -2 (33 bytes) made not entrant
    445 3 % b Test::test @ 11 (33 bytes)
    454 3 % Test::test @ -2 (33 bytes) made not entrant
    454 4 % b Test::test @ 11 (33 bytes)
    463 4 % Test::test @ -2 (33 bytes) made not entrant
...
   2330 201 % Test::test @ -2 (33 bytes) made not entrant
   2330 202 % b Test::test @ 11 (33 bytes)
   3116 1 b Test::test (33 bytes)

With Tiered compilation it is doubled since C1 version of compiled code is thrown out after C2 compilation is done so it needs to be compiled again by C1:

% java -server -Xbatch -XX:+PrintCompilation -XX:+TieredCompilation -XX:CICompilerCount=1 Test
    462 1 b 3 java.lang.Integer::rotateLeft (9 bytes)
    781 2 b 3 java.lang.String::hash32 (45 bytes)
    865 3 b 3 java.lang.String::charAt (29 bytes)
    887 4 n 0 java.lang.System::arraycopy (native) (static)
    898 5 b 3 java.lang.String::length (6 bytes)
    899 6 b 3 java.lang.Object::<init> (1 bytes)
    908 7 b 3 java.lang.String::indexOf (70 bytes)
    920 8 b 1 java.lang.Integer::rotateLeft (9 bytes)
    922 1 3 java.lang.Integer::rotateLeft (9 bytes) made not entrant
    922 9 b 3 java.lang.Math::min (11 bytes)
    929 10 b 3 java.lang.String::equals (81 bytes)
    940 11 b 3 java.lang.AbstractStringBuilder::ensureCapacityInternal (16 bytes)
    985 12 b 1 java.lang.Object::<init> (1 bytes)
    986 6 3 java.lang.Object::<init> (1 bytes) made not entrant
    991 1 % b 3 Test::test @ 11 (33 bytes)
    995 13 b 3 Test::test (33 bytes)
    997 2 % b 4 Test::test @ 11 (33 bytes)
   1025 1 % 3 Test::test @ -2 (33 bytes) made not entrant
   1027 2 % 4 Test::test @ -2 (33 bytes) made not entrant
   1028 3 % b 3 Test::test @ 11 (33 bytes)
   1030 4 % b 4 Test::test @ 11 (33 bytes)
   1041 3 % 3 Test::test @ -2 (33 bytes) made not entrant
   1042 4 % 4 Test::test @ -2 (33 bytes) made not entrant
   1042 5 % b 3 Test::test @ 11 (33 bytes)
   1044 6 % b 4 Test::test @ 11 (33 bytes)
   1055 5 % 3 Test::test @ -2 (33 bytes) made not entrant
   1056 6 % 4 Test::test @ -2 (33 bytes) made not entrant
   1057 7 % b 3 Test::test @ 11 (33 bytes)
   1059 8 % b 4 Test::test @ 11 (33 bytes)
   1067 7 % 3 Test::test @ -2 (33 bytes) made not entrant
   1068 8 % 4 Test::test @ -2 (33 bytes) made not entrant
...
   2979 401 % b 3 Test::test @ 11 (33 bytes)
   2981 402 % b 4 Test::test @ 11 (33 bytes)
   2989 401 % 3 Test::test @ -2 (33 bytes) made not entrant
   2989 402 % 4 Test::test @ -2 (33 bytes) made not entrant
   2989 403 % b 3 Test::test @ 11 (33 bytes)
   2991 404 % b 4 Test::test @ 11 (33 bytes)
   2999 403 % 3 Test::test @ -2 (33 bytes) made not entrant
   3272 14 b 4 Test::test (33 bytes)
   3277 13 3 Test::test (33 bytes) made not entrant

Note that standalone C1 is not affected:

% java -client -Xbatch -XX:+PrintCompilation -XX:+TieredCompilation -XX:CICompilerCount=1 Test
   1999 1 b java.lang.String::equals (81 bytes)
   2412 2 b java.lang.Integer::rotateLeft (9 bytes)
   2424 3 b java.lang.String::indexOf (70 bytes)
   2455 4 b java.lang.String::lastIndexOf (52 bytes)
   2464 5 b sun.misc.Hashing::murmur3_32 (188 bytes)
   2472 6 b java.lang.String::charAt (29 bytes)
   2480 7 b java.lang.String::hashCode (55 bytes)
   2484 8 b java.io.UnixFileSystem::normalize (75 bytes)
   2646 9 b java.lang.Object::<init> (1 bytes)
   2711 1 % b Test::test @ 11 (33 bytes)
   2751 10 b Test::test (33 bytes)