src/cpu/ppc/vm/macroAssembler_ppc.hpp

rev 12397 : 8170991: PPC64: Bad code for initialization of short arrays
Summary: Implement special ClearArray nodes to improve initialization.
Reviewed-by:

@@ -753,11 +753,13 @@
   static bool is_trap_range_check(int x) {
     return is_trap_range_check_l(x) || is_trap_range_check_le(x) ||
            is_trap_range_check_g(x) || is_trap_range_check_ge(x);
   }
 
-  void clear_memory_doubleword(Register base_ptr, Register cnt_dwords, Register tmp = R0);
+  void clear_memory_unrolled(Register base_ptr, int cnt_dwords, Register tmp = R0, int offset = 0);
+  void clear_memory_constlen(Register base_ptr, int cnt_dwords, Register tmp = R0);
+  void clear_memory_doubleword(Register base_ptr, Register cnt_dwords, Register tmp = R0, long const_cnt = -1);
 
 #ifdef COMPILER2
   // Intrinsics for CompactStrings
   // Compress char[] to byte[] by compressing 16 bytes at once.
   void string_compress_16(Register src, Register dst, Register cnt,