The first ifdef in the code below (from compilationMemoryStatistic.cpp) should be COMPILER1 instead of COMPILER 2. Not a bug, just extra code included when building with C2 but not C1.

#ifdef COMPILER2
    // C1: print allocations broken down by arena types
    if (_comp_type == CompilerType::compiler_c1) {
      st->print("[");
      size_t sums[arena_tag_max];
      _counters_at_global_peak.summarize(sums);
      bool print_comma = false;
      for (int i = 0; i < arena_tag_max; i++) {
        if (sums[i] > 0) {
          if (print_comma) {
            st->print_raw(", ");
          }
          st->print("%s %zu", Arena::tag_name[i], sums[i]);
          print_comma = true;
        }
      }
      st->print_cr("]");
    }
#endif // COMPILER1
#ifdef COMPILER2
    // C2: print counters and timeline on multiple lines, indented
    if (_comp_type == CompilerType::compiler_c2) {
      streamIndentor si(st, 4);
      st->cr();
      st->print_cr("--- Arena Usage by Arena Type and compilation phase, at arena usage peak of %zu ---", _peak);
      {
        streamIndentor si(st, 4);
       _counters_at_global_peak.print_on(st);
      }
      st->print_cr("--- Allocation timelime by phase ---");
      {
        streamIndentor si(st, 4);
        _timeline.print_on(st);
      }
      st->print_cr("---");
    }
#endif