Use deopt on some instructions that have not collected type feedback when optimizing compierl kic...

tests/language/src/DeoptimizationTest.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 // Test deoptimization.
 
 class SmiCompares {
   // Test deoptimization when one argument is known to be Smi.
   static bool smiCompareLessThan2(a) {
     return a < 2;
   }
@@ skipping 150 matching lines @@
   static test4() {
     for (int i = 0; i < 2000; i++) {
       Expect.equals(true, compareInt(1, 2));
       Expect.equals(true, compareDouble(1.0, 2.0));
     }
     // Trigger deoptimization in compareInt and compareDouble.
     Expect.equals(true, compareInt(1, 2.0));
     Expect.equals(true, compareDouble(1.0, 2));
   }
 
-
+  static smiRightShift() {

[regis, 2011/12/15 22:18:43]

How about smiLeftShift()?

[srdjan, 2011/12/15 22:27:16]

Once I do changes to the left shift. This CL changes only right shift.

+    int ShiftRight(int a, int b) { return a >> b; }
+    
+    for (int i = 0; i < 2000; i++) {
+      var r = ShiftRight(10, 2);
+      Expect.equals(2, r);
+    }
+    // ShiftRight is optimized.
+    Expect.equals(0, ShiftRight(10, 64));
+    // Deoptimize ShiftRight because 'a' is a Mint.
+    var mint = 1 << 63;
+    Expect.equals(1 << 3, ShiftRight(mint, 60));
+  }
 
   static void testMain() {
     test1();
     test2();
     test3();
     test4();
     SmiCompares.smiComparesTest();
     SmiBinop.smiBinopTest();
     SmiBinop.smiBinopOverflowTest();
     ObjectsEquality.objectsEqualityTest();
+    smiRightShift();
   }
 }
 
 main() {
   DeoptimizationTest.testMain();
 }