29 
30 char* CompressedKlassPointers::reserve_address_space_for_compressed_classes(size_t size, bool aslr, bool optimize_for_zero_base) {
31 
32   char* result = nullptr;
33 
34   // Optimize for base=0 shift=0; failing that, for base=0 shift>0
35   if (optimize_for_zero_base) {
36     result = reserve_address_space_for_unscaled_encoding(size, aslr);
37     if (result == nullptr) {
38       result = reserve_address_space_for_zerobased_encoding(size, aslr);
39     }
40   }
41 
42   // Optimize for a single 16-bit move: a base that has only bits set in its third quadrant [32..48).
43   if (result == nullptr) {
44     result = reserve_address_space_for_16bit_move(size, aslr);
45   }
46 
47   return result;
48 }

29 
30 char* CompressedKlassPointers::reserve_address_space_for_compressed_classes(size_t size, bool aslr, bool optimize_for_zero_base) {
31 
32   char* result = nullptr;
33 
34   // Optimize for base=0 shift=0; failing that, for base=0 shift>0
35   if (optimize_for_zero_base) {
36     result = reserve_address_space_for_unscaled_encoding(size, aslr);
37     if (result == nullptr) {
38       result = reserve_address_space_for_zerobased_encoding(size, aslr);
39     }
40   }
41 
42   // Optimize for a single 16-bit move: a base that has only bits set in its third quadrant [32..48).
43   if (result == nullptr) {
44     result = reserve_address_space_for_16bit_move(size, aslr);
45   }
46 
47   return result;
48 }
49 
50 bool CompressedKlassPointers::pd_initialize(address addr, size_t len) { return false; }