src/share/vm/opto/ifg.cpp

*** 46,56 ****
    _is_square = false;
    // Make uninitialized adjacency lists
    _adjs = (IndexSet*)_arena->Amalloc(sizeof(IndexSet)*maxlrg);
    // Also make empty live range structures
    _lrgs = (LRG *)_arena->Amalloc( maxlrg * sizeof(LRG) );
!   memset(_lrgs,0,sizeof(LRG)*maxlrg);
    // Init all to empty
    for( uint i = 0; i < maxlrg; i++ ) {
      _adjs[i].initialize(maxlrg);
      _lrgs[i].Set_All();
    }
--- 46,56 ----
    _is_square = false;
    // Make uninitialized adjacency lists
    _adjs = (IndexSet*)_arena->Amalloc(sizeof(IndexSet)*maxlrg);
    // Also make empty live range structures
    _lrgs = (LRG *)_arena->Amalloc( maxlrg * sizeof(LRG) );
!   memset((void*)_lrgs,0,sizeof(LRG)*maxlrg);
    // Init all to empty
    for( uint i = 0; i < maxlrg; i++ ) {
      _adjs[i].initialize(maxlrg);
      _lrgs[i].Set_All();
    }