src/cpu/sparc/vm/vm_version_sparc.cpp

*** 72,82 ****
    if ((AllocatePrefetchDistance % AllocatePrefetchStepSize) != 0 ||
        (AllocatePrefetchDistance <= 0)) {
      AllocatePrefetchDistance = AllocatePrefetchStepSize;
    }
  
!   if (AllocatePrefetchStyle == 3 && !has_blk_init()) {
      warning("BIS instructions are not available on this CPU");
      FLAG_SET_DEFAULT(AllocatePrefetchStyle, 1);
    }
  
    assert(ArraycopySrcPrefetchDistance < 4096, "invalid value");
--- 72,82 ----
    if ((AllocatePrefetchDistance % AllocatePrefetchStepSize) != 0 ||
        (AllocatePrefetchDistance <= 0)) {
      AllocatePrefetchDistance = AllocatePrefetchStepSize;
    }
  
!   if (AllocatePrefetchStyle == 3 && (!has_blk_init() || cache_line_size <= 0)) {
      warning("BIS instructions are not available on this CPU");
      FLAG_SET_DEFAULT(AllocatePrefetchStyle, 1);
    }
  
    assert(ArraycopySrcPrefetchDistance < 4096, "invalid value");
*** 136,146 ****
      // aligned on a single instruction boundary
      if (FLAG_IS_DEFAULT(InteriorEntryAlignment)) {
        FLAG_SET_DEFAULT(InteriorEntryAlignment, 4);
      }
      if (is_niagara_plus()) {
!       if (has_blk_init() && UseTLAB &&
            FLAG_IS_DEFAULT(AllocatePrefetchInstr)) {
          // Use BIS instruction for TLAB allocation prefetch.
          FLAG_SET_ERGO(intx, AllocatePrefetchInstr, 1);
          if (FLAG_IS_DEFAULT(AllocatePrefetchStyle)) {
            FLAG_SET_ERGO(intx, AllocatePrefetchStyle, 3);
--- 136,146 ----
      // aligned on a single instruction boundary
      if (FLAG_IS_DEFAULT(InteriorEntryAlignment)) {
        FLAG_SET_DEFAULT(InteriorEntryAlignment, 4);
      }
      if (is_niagara_plus()) {
!       if (has_blk_init() && (cache_line_size > 0) && UseTLAB &&
            FLAG_IS_DEFAULT(AllocatePrefetchInstr)) {
          // Use BIS instruction for TLAB allocation prefetch.
          FLAG_SET_ERGO(intx, AllocatePrefetchInstr, 1);
          if (FLAG_IS_DEFAULT(AllocatePrefetchStyle)) {
            FLAG_SET_ERGO(intx, AllocatePrefetchStyle, 3);