3752   //
3753   // Like generate_guard, adds a new path onto the region.
3754   jint  layout_con = 0;
3755   Node* layout_val = get_layout_helper(kls, layout_con);
3756   if (layout_val == NULL) {
3757     bool query = (obj_array
3758                   ? Klass::layout_helper_is_objArray(layout_con)
3759                   : Klass::layout_helper_is_array(layout_con));
3760     if (query == not_array) {
3761       return NULL;                       // never a branch
3762     } else {                             // always a branch
3763       Node* always_branch = control();
3764       if (region != NULL)
3765         region->add_req(always_branch);
3766       set_control(top());
3767       return always_branch;
3768     }
3769   }
3770   // Now test the correct condition.
3771   jint  nval = (obj_array
3772                 ? ((jint)Klass::_lh_array_tag_type_value
3773                    <<    Klass::_lh_array_tag_shift)
3774                 : Klass::_lh_neutral_value);
3775   Node* cmp = _gvn.transform(new CmpINode(layout_val, intcon(nval)));
3776   BoolTest::mask btest = BoolTest::lt;  // correct for testing is_[obj]array
3777   // invert the test if we are looking for a non-array
3778   if (not_array)  btest = BoolTest(btest).negate();
3779   Node* bol = _gvn.transform(new BoolNode(cmp, btest));
3780   return generate_fair_guard(bol, region);
3781 }
3782 
3783 
3784 //-----------------------inline_native_newArray--------------------------
3785 // private static native Object java.lang.reflect.newArray(Class<?> componentType, int length);
3786 // private        native Object Unsafe.allocateUninitializedArray0(Class<?> cls, int size);
3787 bool LibraryCallKit::inline_unsafe_newArray(bool uninitialized) {
3788   Node* mirror;
3789   Node* count_val;
3790   if (uninitialized) {
3791     mirror    = argument(1);
3792     count_val = argument(2);

3752   //
3753   // Like generate_guard, adds a new path onto the region.
3754   jint  layout_con = 0;
3755   Node* layout_val = get_layout_helper(kls, layout_con);
3756   if (layout_val == NULL) {
3757     bool query = (obj_array
3758                   ? Klass::layout_helper_is_objArray(layout_con)
3759                   : Klass::layout_helper_is_array(layout_con));
3760     if (query == not_array) {
3761       return NULL;                       // never a branch
3762     } else {                             // always a branch
3763       Node* always_branch = control();
3764       if (region != NULL)
3765         region->add_req(always_branch);
3766       set_control(top());
3767       return always_branch;
3768     }
3769   }
3770   // Now test the correct condition.
3771   jint  nval = (obj_array
3772                 ? (jint)(Klass::_lh_array_tag_type_value
3773                    <<    Klass::_lh_array_tag_shift)
3774                 : Klass::_lh_neutral_value);
3775   Node* cmp = _gvn.transform(new CmpINode(layout_val, intcon(nval)));
3776   BoolTest::mask btest = BoolTest::lt;  // correct for testing is_[obj]array
3777   // invert the test if we are looking for a non-array
3778   if (not_array)  btest = BoolTest(btest).negate();
3779   Node* bol = _gvn.transform(new BoolNode(cmp, btest));
3780   return generate_fair_guard(bol, region);
3781 }
3782 
3783 
3784 //-----------------------inline_native_newArray--------------------------
3785 // private static native Object java.lang.reflect.newArray(Class<?> componentType, int length);
3786 // private        native Object Unsafe.allocateUninitializedArray0(Class<?> cls, int size);
3787 bool LibraryCallKit::inline_unsafe_newArray(bool uninitialized) {
3788   Node* mirror;
3789   Node* count_val;
3790   if (uninitialized) {
3791     mirror    = argument(1);
3792     count_val = argument(2);