Remove the no-longer-needed F/I and D/J alias.

Rationale:
Now that our HIR is type clean (yeah!), we no longer have
to conservatively assume F/I and D/J are aliased. This
enables more accurate side effects analysis, with improvements
in all clients, such a LICM.

Refinement:
The HIR is not completely clean between building and SSA.
This refinement takes care of that, with new tests.

BUG=22538329

Change-Id: Id78ff0ff4e325aeebf0022d868937cff73d3a742

1 files changed, 711 insertions, 0 deletions

diff --git a/test/525-checker-arrays-fields2/src/Main.java b/test/525-checker-arrays-fields2/src/Main.java
new file mode 100644
index 0000000000..2aa40fcdc1
--- /dev/null
+++ b/test/525-checker-arrays-fields2/src/Main.java
@@ -0,0 +1,711 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//
+// Test on (in)variant instance field and array references in loops.
+//
+public class Main {
+
+  private static Object anObject = new Object();
+  private static Object anotherObject = new Object();
+
+  //
+  // Instance fields.
+  //
+
+  private boolean mZ;
+  private byte mB;
+  private char mC;
+  private short mS;
+  private int mI;
+  private long mJ;
+  private float mF;
+  private double mD;
+  private Object mL;
+
+  //
+  // Instance arrays.
+  //
+
+  private boolean[] mArrZ;
+  private byte[] mArrB;
+  private char[] mArrC;
+  private short[] mArrS;
+  private int[] mArrI;
+  private long[] mArrJ;
+  private float[] mArrF;
+  private double[] mArrD;
+  private Object[] mArrL;
+
+  //
+  // Loops on instance arrays with invariant instance field references.
+  // The checker is used to ensure hoisting occurred.
+  //
+
+  /// CHECK-START: void Main.InvLoopZ() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopZ() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopZ() {
+    for (int i = 0; i < mArrZ.length; i++) {
+      mArrZ[i] = mZ;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopB() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopB() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopB() {
+    for (int i = 0; i < mArrB.length; i++) {
+      mArrB[i] = mB;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopC() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopC() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopC() {
+    for (int i = 0; i < mArrC.length; i++) {
+      mArrC[i] = mC;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopS() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopS() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopS() {
+    for (int i = 0; i < mArrS.length; i++) {
+      mArrS[i] = mS;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopI() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopI() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopI() {
+    for (int i = 0; i < mArrI.length; i++) {
+      mArrI[i] = mI;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopJ() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopJ() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopJ() {
+    for (int i = 0; i < mArrJ.length; i++) {
+      mArrJ[i] = mJ;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopF() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopF() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopF() {
+    for (int i = 0; i < mArrF.length; i++) {
+      mArrF[i] = mF;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopD() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopD() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopD() {
+    for (int i = 0; i < mArrD.length; i++) {
+      mArrD[i] = mD;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopL() licm (before)
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: InstanceFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopL() licm (after)
+  /// CHECK-DAG: InstanceFieldGet loop:none
+  /// CHECK-DAG: InstanceFieldGet loop:none
+
+  private void InvLoopL() {
+    for (int i = 0; i < mArrL.length; i++) {
+      mArrL[i] = mL;
+    }
+  }
+
+  //
+  // Loops on instance arrays with variant instance field references.
+  // Incorrect hoisting is detected by incorrect outcome.
+  //
+
+  private void VarLoopZ() {
+    for (int i = 0; i < mArrZ.length; i++) {
+      mArrZ[i] = mZ;
+      if (i == 10)
+        mZ = !mZ;
+    }
+  }
+
+  private void VarLoopB() {
+    for (int i = 0; i < mArrB.length; i++) {
+      mArrB[i] = mB;
+      if (i == 10)
+        mB++;
+    }
+  }
+
+  private void VarLoopC() {
+    for (int i = 0; i < mArrC.length; i++) {
+      mArrC[i] = mC;
+      if (i == 10)
+        mC++;
+    }
+  }
+
+  private void VarLoopS() {
+    for (int i = 0; i < mArrS.length; i++) {
+      mArrS[i] = mS;
+      if (i == 10)
+        mS++;
+    }
+  }
+
+  private void VarLoopI() {
+    for (int i = 0; i < mArrI.length; i++) {
+      mArrI[i] = mI;
+      if (i == 10)
+        mI++;
+    }
+  }
+
+  private void VarLoopJ() {
+    for (int i = 0; i < mArrJ.length; i++) {
+      mArrJ[i] = mJ;
+      if (i == 10)
+        mJ++;
+    }
+  }
+
+  private void VarLoopF() {
+    for (int i = 0; i < mArrF.length; i++) {
+      mArrF[i] = mF;
+      if (i == 10)
+        mF++;
+    }
+  }
+
+  private void VarLoopD() {
+    for (int i = 0; i < mArrD.length; i++) {
+      mArrD[i] = mD;
+      if (i == 10)
+        mD++;
+    }
+  }
+
+  private void VarLoopL() {
+    for (int i = 0; i < mArrL.length; i++) {
+      mArrL[i] = mL;
+      if (i == 10)
+        mL = anotherObject;
+    }
+  }
+
+  //
+  // Loops on instance arrays with a cross-over reference.
+  // Incorrect hoisting is detected by incorrect outcome.
+  // In addition, the checker is used to detect no hoisting.
+  //
+
+  /// CHECK-START: void Main.CrossOverLoopZ() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopZ() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopZ() {
+    mArrZ[20] = false;
+    for (int i = 0; i < mArrZ.length; i++) {
+      mArrZ[i] = !mArrZ[20];
+    }
+  }
+
+  /// CHECK-START: void Main.CrossOverLoopB() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopB() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopB() {
+    mArrB[20] = 111;
+    for (int i = 0; i < mArrB.length; i++) {
+      mArrB[i] = (byte)(mArrB[20] + 2);
+    }
+  }
+
+  /// CHECK-START: void Main.CrossOverLoopC() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopC() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopC() {
+    mArrC[20] = 111;
+    for (int i = 0; i < mArrC.length; i++) {
+      mArrC[i] = (char)(mArrC[20] + 2);
+    }
+  }
+
+  /// CHECK-START: void Main.CrossOverLoopS() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopS() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopS() {
+    mArrS[20] = 111;
+    for (int i = 0; i < mArrS.length; i++) {
+      mArrS[i] = (short)(mArrS[20] + 2);
+    }
+  }
+
+  /// CHECK-START: void Main.CrossOverLoopI() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopI() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopI() {
+    mArrI[20] = 111;
+    for (int i = 0; i < mArrI.length; i++) {
+      mArrI[i] = mArrI[20] + 2;
+    }
+  }
+
+  /// CHECK-START: void Main.CrossOverLoopJ() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopJ() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopJ() {
+    mArrJ[20] = 111;
+    for (int i = 0; i < mArrJ.length; i++) {
+      mArrJ[i] = mArrJ[20] + 2;
+    }
+  }
+
+  /// CHECK-START: void Main.CrossOverLoopF() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopF() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopF() {
+    mArrF[20] = 111;
+    for (int i = 0; i < mArrF.length; i++) {
+      mArrF[i] = mArrF[20] + 2;
+    }
+  }
+
+  /// CHECK-START: void Main.CrossOverLoopD() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopD() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopD() {
+    mArrD[20] = 111;
+    for (int i = 0; i < mArrD.length; i++) {
+      mArrD[i] = mArrD[20] + 2;
+    }
+  }
+
+  /// CHECK-START: void Main.CrossOverLoopL() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.CrossOverLoopL() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void CrossOverLoopL() {
+    mArrL[20] = anotherObject;
+    for (int i = 0; i < mArrL.length; i++) {
+      mArrL[i] = (mArrL[20] == anObject) ? anotherObject : anObject;
+    }
+  }
+
+  //
+  // False cross-over loops on instance arrays with data types (I/F and J/D) that used
+  // to be aliased in an older version of the compiler. This alias has been removed,
+  // however, which enables hoisting the invariant array reference.
+  //
+
+  /// CHECK-START: void Main.FalseCrossOverLoop1() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.FalseCrossOverLoop1() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:none
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void FalseCrossOverLoop1() {
+    mArrF[20] = -1;
+    for (int i = 0; i < mArrI.length; i++) {
+      mArrI[i] = (int) mArrF[20] - 2;
+    }
+  }
+
+  /// CHECK-START: void Main.FalseCrossOverLoop2() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.FalseCrossOverLoop2() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:none
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void FalseCrossOverLoop2() {
+    mArrI[20] = -2;
+    for (int i = 0; i < mArrF.length; i++) {
+      mArrF[i] = mArrI[20] - 2;
+    }
+  }
+
+  /// CHECK-START: void Main.FalseCrossOverLoop3() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.FalseCrossOverLoop3() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:none
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void FalseCrossOverLoop3() {
+    mArrD[20] = -3;
+    for (int i = 0; i < mArrJ.length; i++) {
+      mArrJ[i] = (long) mArrD[20] - 2;
+    }
+  }
+
+  /// CHECK-START: void Main.FalseCrossOverLoop4() licm (before)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:{{B\d+}}
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.FalseCrossOverLoop4() licm (after)
+  /// CHECK-DAG: ArraySet loop:none
+  /// CHECK-DAG: ArrayGet loop:none
+  /// CHECK-DAG: ArraySet loop:{{B\d+}}
+
+  private void FalseCrossOverLoop4() {
+    mArrJ[20] = -4;
+    for (int i = 0; i < mArrD.length; i++) {
+      mArrD[i] = mArrJ[20] - 2;
+    }
+  }
+
+  //
+  // Main driver and testers.
+  //
+
+  public static void main(String[] args) {
+    new Main().DoInstanceTests();
+    System.out.println("passed");
+  }
+
+  private void DoInstanceTests() {
+    // Type Z.
+    mZ = true;
+    mArrZ = new boolean[100];
+    InvLoopZ();
+    for (int i = 0; i < mArrZ.length; i++) {
+      expectEquals(true, mArrZ[i]);
+    }
+    VarLoopZ();
+    for (int i = 0; i < mArrZ.length; i++) {
+      expectEquals(i <= 10, mArrZ[i]);
+    }
+    CrossOverLoopZ();
+    for (int i = 0; i < mArrZ.length; i++) {
+      expectEquals(i <= 20, mArrZ[i]);
+    }
+    // Type B.
+    mB = 1;
+    mArrB = new byte[100];
+    InvLoopB();
+    for (int i = 0; i < mArrB.length; i++) {
+      expectEquals(1, mArrB[i]);
+    }
+    VarLoopB();
+    for (int i = 0; i < mArrB.length; i++) {
+      expectEquals(i <= 10 ? 1 : 2, mArrB[i]);
+    }
+    CrossOverLoopB();
+    for (int i = 0; i < mArrB.length; i++) {
+      expectEquals(i <= 20 ? 113 : 115, mArrB[i]);
+    }
+    // Type C.
+    mC = 2;
+    mArrC = new char[100];
+    InvLoopC();
+    for (int i = 0; i < mArrC.length; i++) {
+      expectEquals(2, mArrC[i]);
+    }
+    VarLoopC();
+    for (int i = 0; i < mArrC.length; i++) {
+      expectEquals(i <= 10 ? 2 : 3, mArrC[i]);
+    }
+    CrossOverLoopC();
+    for (int i = 0; i < mArrC.length; i++) {
+      expectEquals(i <= 20 ? 113 : 115, mArrC[i]);
+    }
+    // Type S.
+    mS = 3;
+    mArrS = new short[100];
+    InvLoopS();
+    for (int i = 0; i < mArrS.length; i++) {
+      expectEquals(3, mArrS[i]);
+    }
+    VarLoopS();
+    for (int i = 0; i < mArrS.length; i++) {
+      expectEquals(i <= 10 ? 3 : 4, mArrS[i]);
+    }
+    CrossOverLoopS();
+    for (int i = 0; i < mArrS.length; i++) {
+      expectEquals(i <= 20 ? 113 : 115, mArrS[i]);
+    }
+    // Type I.
+    mI = 4;
+    mArrI = new int[100];
+    InvLoopI();
+    for (int i = 0; i < mArrI.length; i++) {
+      expectEquals(4, mArrI[i]);
+    }
+    VarLoopI();
+    for (int i = 0; i < mArrI.length; i++) {
+      expectEquals(i <= 10 ? 4 : 5, mArrI[i]);
+    }
+    CrossOverLoopI();
+    for (int i = 0; i < mArrI.length; i++) {
+      expectEquals(i <= 20 ? 113 : 115, mArrI[i]);
+    }
+    // Type J.
+    mJ = 5;
+    mArrJ = new long[100];
+    InvLoopJ();
+    for (int i = 0; i < mArrJ.length; i++) {
+      expectEquals(5, mArrJ[i]);
+    }
+    VarLoopJ();
+    for (int i = 0; i < mArrJ.length; i++) {
+      expectEquals(i <= 10 ? 5 : 6, mArrJ[i]);
+    }
+    CrossOverLoopJ();
+    for (int i = 0; i < mArrJ.length; i++) {
+      expectEquals(i <= 20 ? 113 : 115, mArrJ[i]);
+    }
+    // Type F.
+    mF = 6.0f;
+    mArrF = new float[100];
+    InvLoopF();
+    for (int i = 0; i < mArrF.length; i++) {
+      expectEquals(6, mArrF[i]);
+    }
+    VarLoopF();
+    for (int i = 0; i < mArrF.length; i++) {
+      expectEquals(i <= 10 ? 6 : 7, mArrF[i]);
+    }
+    CrossOverLoopF();
+    for (int i = 0; i < mArrF.length; i++) {
+      expectEquals(i <= 20 ? 113 : 115, mArrF[i]);
+    }
+    // Type D.
+    mD = 7.0;
+    mArrD = new double[100];
+    InvLoopD();
+    for (int i = 0; i < mArrD.length; i++) {
+      expectEquals(7.0, mArrD[i]);
+    }
+    VarLoopD();
+    for (int i = 0; i < mArrD.length; i++) {
+      expectEquals(i <= 10 ? 7 : 8, mArrD[i]);
+    }
+    CrossOverLoopD();
+    for (int i = 0; i < mArrD.length; i++) {
+      expectEquals(i <= 20 ? 113 : 115, mArrD[i]);
+    }
+    // Type L.
+    mL = anObject;
+    mArrL = new Object[100];
+    InvLoopL();
+    for (int i = 0; i < mArrL.length; i++) {
+      expectEquals(anObject, mArrL[i]);
+    }
+    VarLoopL();
+    for (int i = 0; i < mArrL.length; i++) {
+      expectEquals(i <= 10 ? anObject : anotherObject, mArrL[i]);
+    }
+    CrossOverLoopL();
+    for (int i = 0; i < mArrL.length; i++) {
+      expectEquals(i <= 20 ? anObject : anotherObject, mArrL[i]);
+    }
+    // False cross-over.
+    FalseCrossOverLoop1();
+    for (int i = 0; i < mArrI.length; i++) {
+      expectEquals(-3, mArrI[i]);
+    }
+    FalseCrossOverLoop2();
+    for (int i = 0; i < mArrF.length; i++) {
+      expectEquals(-4, mArrF[i]);
+    }
+    FalseCrossOverLoop3();
+    for (int i = 0; i < mArrJ.length; i++) {
+      expectEquals(-5, mArrJ[i]);
+    }
+    FalseCrossOverLoop4();
+    for (int i = 0; i < mArrD.length; i++) {
+      expectEquals(-6, mArrD[i]);
+    }
+  }
+
+  private static void expectEquals(boolean expected, boolean result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  private static void expectEquals(byte expected, byte result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  private static void expectEquals(char expected, char result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  private static void expectEquals(short expected, short result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  private static void expectEquals(int expected, int result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  private static void expectEquals(long expected, long result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  private static void expectEquals(float expected, float result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  private static void expectEquals(double expected, double result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  private static void expectEquals(Object expected, Object result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+}