55         }
  56         return dest;
  57     }
  58 
  59     static Object m2_src(Object src) {
  60         return src;
  61     }
  62 
  63     public static int[] m2(Object src) {
  64         if (src == null) return null;
  65         src = m2_src(src);
  66         int[] dest = new int[10];
  67         try {
  68             System.arraycopy(src, 0, dest, 0, 10);
  69         } catch (ArrayStoreException npe) {
  70         }
  71         return dest;
  72     }
  73 
  74     private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();

  75 
  76     static boolean deoptimize(Method method, Object src_obj) throws Exception {
  77         for (int i = 0; i < 10; i++) {
  78             method.invoke(null, src_obj);
  79             if (!WHITE_BOX.isMethodCompiled(method)) {
  80                 return true;
  81             }
  82         }
  83         return false;
  84     }
  85 
  86     static public void main(String[] args) throws Exception {
  87         if (Platform.isServer()) {


  88             int[] src = new int[10];
  89             Object src_obj = new Object();
  90             Method method_m1 = TestArrayCopyNoInitDeopt.class.getMethod("m1", Object.class);
  91             Method method_m2 = TestArrayCopyNoInitDeopt.class.getMethod("m2", Object.class);
  92 
  93             // Warm up
  94             for (int i = 0; i < 20000; i++) {
  95                 m1(src);
  96             }
  97 
  98             // And make sure m1 is compiled by C2
  99             WHITE_BOX.enqueueMethodForCompilation(method_m1, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
 100 
 101             if (!WHITE_BOX.isMethodCompiled(method_m1)) {
 102                 throw new RuntimeException("m1 not compiled");
 103             }
 104 
 105             // should deoptimize for type check
 106             if (!deoptimize(method_m1, src_obj)) {
 107                 throw new RuntimeException("m1 not deoptimized");

  55         }
  56         return dest;
  57     }
  58 
  59     static Object m2_src(Object src) {
  60         return src;
  61     }
  62 
  63     public static int[] m2(Object src) {
  64         if (src == null) return null;
  65         src = m2_src(src);
  66         int[] dest = new int[10];
  67         try {
  68             System.arraycopy(src, 0, dest, 0, 10);
  69         } catch (ArrayStoreException npe) {
  70         }
  71         return dest;
  72     }
  73 
  74     private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
  75     private static final int TIERED_STOP_AT_LEVEL = WHITE_BOX.getIntxVMFlag("TieredStopAtLevel").intValue();
  76 
  77     static boolean deoptimize(Method method, Object src_obj) throws Exception {
  78         for (int i = 0; i < 10; i++) {
  79             method.invoke(null, src_obj);
  80             if (!WHITE_BOX.isMethodCompiled(method)) {
  81                 return true;
  82             }
  83         }
  84         return false;
  85     }
  86 
  87     static public void main(String[] args) throws Exception {
  88         // Only execute if C2 is available
  89         if (Platform.isServer() &&
  90             TIERED_STOP_AT_LEVEL == CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION) {
  91             int[] src = new int[10];
  92             Object src_obj = new Object();
  93             Method method_m1 = TestArrayCopyNoInitDeopt.class.getMethod("m1", Object.class);
  94             Method method_m2 = TestArrayCopyNoInitDeopt.class.getMethod("m2", Object.class);
  95 
  96             // Warm up
  97             for (int i = 0; i < 20000; i++) {
  98                 m1(src);
  99             }
 100 
 101             // And make sure m1 is compiled by C2
 102             WHITE_BOX.enqueueMethodForCompilation(method_m1, CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION);
 103 
 104             if (!WHITE_BOX.isMethodCompiled(method_m1)) {
 105                 throw new RuntimeException("m1 not compiled");
 106             }
 107 
 108             // should deoptimize for type check
 109             if (!deoptimize(method_m1, src_obj)) {
 110                 throw new RuntimeException("m1 not deoptimized");