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-fields1/src/Main.java b/test/525-checker-arrays-fields1/src/Main.java
new file mode 100644
index 0000000000..ba0476af5f
--- /dev/null
+++ b/test/525-checker-arrays-fields1/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 static field and array references in loops.
+//
+public class Main {
+
+  private static Object anObject = new Object();
+  private static Object anotherObject = new Object();
+
+  //
+  // Static fields.
+  //
+
+  private static boolean sZ;
+  private static byte sB;
+  private static char sC;
+  private static short sS;
+  private static int sI;
+  private static long sJ;
+  private static float sF;
+  private static double sD;
+  private static Object sL;
+
+  //
+  // Static arrays.
+  //
+
+  private static boolean[] sArrZ;
+  private static byte[] sArrB;
+  private static char[] sArrC;
+  private static short[] sArrS;
+  private static int[] sArrI;
+  private static long[] sArrJ;
+  private static float[] sArrF;
+  private static double[] sArrD;
+  private static Object[] sArrL;
+
+  //
+  // Loops on static arrays with invariant static field references.
+  // The checker is used to ensure hoisting occurred.
+  //
+
+  /// CHECK-START: void Main.InvLoopZ() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopZ() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopZ() {
+    for (int i = 0; i < sArrZ.length; i++) {
+      sArrZ[i] = sZ;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopB() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopB() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopB() {
+    for (int i = 0; i < sArrB.length; i++) {
+      sArrB[i] = sB;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopC() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopC() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopC() {
+    for (int i = 0; i < sArrC.length; i++) {
+      sArrC[i] = sC;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopS() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopS() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopS() {
+    for (int i = 0; i < sArrS.length; i++) {
+      sArrS[i] = sS;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopI() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopI() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopI() {
+    for (int i = 0; i < sArrI.length; i++) {
+      sArrI[i] = sI;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopJ() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopJ() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopJ() {
+    for (int i = 0; i < sArrJ.length; i++) {
+      sArrJ[i] = sJ;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopF() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopF() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopF() {
+    for (int i = 0; i < sArrF.length; i++) {
+      sArrF[i] = sF;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopD() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopD() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopD() {
+    for (int i = 0; i < sArrD.length; i++) {
+      sArrD[i] = sD;
+    }
+  }
+
+  /// CHECK-START: void Main.InvLoopL() licm (before)
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+  /// CHECK-DAG: StaticFieldGet loop:{{B\d+}}
+
+  /// CHECK-START: void Main.InvLoopL() licm (after)
+  /// CHECK-DAG: StaticFieldGet loop:none
+  /// CHECK-DAG: StaticFieldGet loop:none
+
+  private static void InvLoopL() {
+    for (int i = 0; i < sArrL.length; i++) {
+      sArrL[i] = sL;
+    }
+  }
+
+  //
+  // Loops on static arrays with variant static field references.
+  // Incorrect hoisting is detected by incorrect outcome.
+  //
+
+  private static void VarLoopZ() {
+    for (int i = 0; i < sArrZ.length; i++) {
+      sArrZ[i] = sZ;
+      if (i == 10)
+        sZ = !sZ;
+    }
+  }
+
+  private static void VarLoopB() {
+    for (int i = 0; i < sArrB.length; i++) {
+      sArrB[i] = sB;
+      if (i == 10)
+        sB++;
+    }
+  }
+
+  private static void VarLoopC() {
+    for (int i = 0; i < sArrC.length; i++) {
+      sArrC[i] = sC;
+      if (i == 10)
+        sC++;
+    }
+  }
+
+  private static void VarLoopS() {
+    for (int i = 0; i < sArrS.length; i++) {
+      sArrS[i] = sS;
+      if (i == 10)
+        sS++;
+    }
+  }
+
+  private static void VarLoopI() {
+    for (int i = 0; i < sArrI.length; i++) {
+      sArrI[i] = sI;
+      if (i == 10)
+        sI++;
+    }
+  }
+
+  private static void VarLoopJ() {
+    for (int i = 0; i < sArrJ.length; i++) {
+      sArrJ[i] = sJ;
+      if (i == 10)
+        sJ++;
+    }
+  }
+
+  private static void VarLoopF() {
+    for (int i = 0; i < sArrF.length; i++) {
+      sArrF[i] = sF;
+      if (i == 10)
+        sF++;
+    }
+  }
+
+  private static void VarLoopD() {
+    for (int i = 0; i < sArrD.length; i++) {
+      sArrD[i] = sD;
+      if (i == 10)
+        sD++;
+    }
+  }
+
+  private static void VarLoopL() {
+    for (int i = 0; i < sArrL.length; i++) {
+      sArrL[i] = sL;
+      if (i == 10)
+        sL = anotherObject;
+    }
+  }
+
+  //
+  // Loops on static 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 static void CrossOverLoopZ() {
+    sArrZ[20] = false;
+    for (int i = 0; i < sArrZ.length; i++) {
+      sArrZ[i] = !sArrZ[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 static void CrossOverLoopB() {
+    sArrB[20] = 11;
+    for (int i = 0; i < sArrB.length; i++) {
+      sArrB[i] = (byte)(sArrB[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 static void CrossOverLoopC() {
+    sArrC[20] = 11;
+    for (int i = 0; i < sArrC.length; i++) {
+      sArrC[i] = (char)(sArrC[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 static void CrossOverLoopS() {
+    sArrS[20] = 11;
+    for (int i = 0; i < sArrS.length; i++) {
+      sArrS[i] = (short)(sArrS[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 static void CrossOverLoopI() {
+    sArrI[20] = 11;
+    for (int i = 0; i < sArrI.length; i++) {
+      sArrI[i] = sArrI[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 static void CrossOverLoopJ() {
+    sArrJ[20] = 11;
+    for (int i = 0; i < sArrJ.length; i++) {
+      sArrJ[i] = sArrJ[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 static void CrossOverLoopF() {
+    sArrF[20] = 11;
+    for (int i = 0; i < sArrF.length; i++) {
+      sArrF[i] = sArrF[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 static void CrossOverLoopD() {
+    sArrD[20] = 11;
+    for (int i = 0; i < sArrD.length; i++) {
+      sArrD[i] = sArrD[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 static void CrossOverLoopL() {
+    sArrL[20] = anotherObject;
+    for (int i = 0; i < sArrL.length; i++) {
+      sArrL[i] = (sArrL[20] == anObject) ? anotherObject : anObject;
+    }
+  }
+
+  //
+  // False cross-over loops on static 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 static void FalseCrossOverLoop1() {
+    sArrF[20] = -1;
+    for (int i = 0; i < sArrI.length; i++) {
+      sArrI[i] = (int) sArrF[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 static void FalseCrossOverLoop2() {
+    sArrI[20] = -2;
+    for (int i = 0; i < sArrF.length; i++) {
+      sArrF[i] = sArrI[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 static void FalseCrossOverLoop3() {
+    sArrD[20] = -3;
+    for (int i = 0; i < sArrJ.length; i++) {
+      sArrJ[i] = (long) sArrD[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 static void FalseCrossOverLoop4() {
+    sArrJ[20] = -4;
+    for (int i = 0; i < sArrD.length; i++) {
+      sArrD[i] = sArrJ[20] - 2;
+    }
+  }
+
+  //
+  // Main driver and testers.
+  //
+
+  public static void main(String[] args) {
+    DoStaticTests();
+    System.out.println("passed");
+  }
+
+  private static void DoStaticTests() {
+    // Type Z.
+    sZ = true;
+    sArrZ = new boolean[100];
+    InvLoopZ();
+    for (int i = 0; i < sArrZ.length; i++) {
+      expectEquals(true, sArrZ[i]);
+    }
+    VarLoopZ();
+    for (int i = 0; i < sArrZ.length; i++) {
+      expectEquals(i <= 10, sArrZ[i]);
+    }
+    CrossOverLoopZ();
+    for (int i = 0; i < sArrZ.length; i++) {
+      expectEquals(i <= 20, sArrZ[i]);
+    }
+    // Type B.
+    sB = 1;
+    sArrB = new byte[100];
+    InvLoopB();
+    for (int i = 0; i < sArrB.length; i++) {
+      expectEquals(1, sArrB[i]);
+    }
+    VarLoopB();
+    for (int i = 0; i < sArrB.length; i++) {
+      expectEquals(i <= 10 ? 1 : 2, sArrB[i]);
+    }
+    CrossOverLoopB();
+    for (int i = 0; i < sArrB.length; i++) {
+      expectEquals(i <= 20 ? 13 : 15, sArrB[i]);
+    }
+    // Type C.
+    sC = 2;
+    sArrC = new char[100];
+    InvLoopC();
+    for (int i = 0; i < sArrC.length; i++) {
+      expectEquals(2, sArrC[i]);
+    }
+    VarLoopC();
+    for (int i = 0; i < sArrC.length; i++) {
+      expectEquals(i <= 10 ? 2 : 3, sArrC[i]);
+    }
+    CrossOverLoopC();
+    for (int i = 0; i < sArrC.length; i++) {
+      expectEquals(i <= 20 ? 13 : 15, sArrC[i]);
+    }
+    // Type S.
+    sS = 3;
+    sArrS = new short[100];
+    InvLoopS();
+    for (int i = 0; i < sArrS.length; i++) {
+      expectEquals(3, sArrS[i]);
+    }
+    VarLoopS();
+    for (int i = 0; i < sArrS.length; i++) {
+      expectEquals(i <= 10 ? 3 : 4, sArrS[i]);
+    }
+    CrossOverLoopS();
+    for (int i = 0; i < sArrS.length; i++) {
+      expectEquals(i <= 20 ? 13 : 15, sArrS[i]);
+    }
+    // Type I.
+    sI = 4;
+    sArrI = new int[100];
+    InvLoopI();
+    for (int i = 0; i < sArrI.length; i++) {
+      expectEquals(4, sArrI[i]);
+    }
+    VarLoopI();
+    for (int i = 0; i < sArrI.length; i++) {
+      expectEquals(i <= 10 ? 4 : 5, sArrI[i]);
+    }
+    CrossOverLoopI();
+    for (int i = 0; i < sArrI.length; i++) {
+      expectEquals(i <= 20 ? 13 : 15, sArrI[i]);
+    }
+    // Type J.
+    sJ = 5;
+    sArrJ = new long[100];
+    InvLoopJ();
+    for (int i = 0; i < sArrJ.length; i++) {
+      expectEquals(5, sArrJ[i]);
+    }
+    VarLoopJ();
+    for (int i = 0; i < sArrJ.length; i++) {
+      expectEquals(i <= 10 ? 5 : 6, sArrJ[i]);
+    }
+    CrossOverLoopJ();
+    for (int i = 0; i < sArrJ.length; i++) {
+      expectEquals(i <= 20 ? 13 : 15, sArrJ[i]);
+    }
+    // Type F.
+    sF = 6.0f;
+    sArrF = new float[100];
+    InvLoopF();
+    for (int i = 0; i < sArrF.length; i++) {
+      expectEquals(6, sArrF[i]);
+    }
+    VarLoopF();
+    for (int i = 0; i < sArrF.length; i++) {
+      expectEquals(i <= 10 ? 6 : 7, sArrF[i]);
+    }
+    CrossOverLoopF();
+    for (int i = 0; i < sArrF.length; i++) {
+      expectEquals(i <= 20 ? 13 : 15, sArrF[i]);
+    }
+    // Type D.
+    sD = 7.0;
+    sArrD = new double[100];
+    InvLoopD();
+    for (int i = 0; i < sArrD.length; i++) {
+      expectEquals(7.0, sArrD[i]);
+    }
+    VarLoopD();
+    for (int i = 0; i < sArrD.length; i++) {
+      expectEquals(i <= 10 ? 7 : 8, sArrD[i]);
+    }
+    CrossOverLoopD();
+    for (int i = 0; i < sArrD.length; i++) {
+      expectEquals(i <= 20 ? 13 : 15, sArrD[i]);
+    }
+    // Type L.
+    sL = anObject;
+    sArrL = new Object[100];
+    InvLoopL();
+    for (int i = 0; i < sArrL.length; i++) {
+      expectEquals(anObject, sArrL[i]);
+    }
+    VarLoopL();
+    for (int i = 0; i < sArrL.length; i++) {
+      expectEquals(i <= 10 ? anObject : anotherObject, sArrL[i]);
+    }
+    CrossOverLoopL();
+    for (int i = 0; i < sArrL.length; i++) {
+      expectEquals(i <= 20 ? anObject : anotherObject, sArrL[i]);
+    }
+    // False cross-over.
+    FalseCrossOverLoop1();
+    for (int i = 0; i < sArrI.length; i++) {
+      expectEquals(-3, sArrI[i]);
+    }
+    FalseCrossOverLoop2();
+    for (int i = 0; i < sArrF.length; i++) {
+      expectEquals(-4, sArrF[i]);
+    }
+    FalseCrossOverLoop3();
+    for (int i = 0; i < sArrJ.length; i++) {
+      expectEquals(-5, sArrJ[i]);
+    }
+    FalseCrossOverLoop4();
+    for (int i = 0; i < sArrD.length; i++) {
+      expectEquals(-6, sArrD[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);
+    }
+  }
+}