src/share/vm/opto/live.hpp

*** 44,54 ****
  //------------------------------PhaseLive--------------------------------------
  // Compute live-in/live-out
  class PhaseLive : public Phase {
    // Array of Sets of values live at the start of a block.
    // Indexed by block pre-order number.
!   IndexSet *_live;
  
    // Array of Sets of values defined locally in the block
    // Indexed by block pre-order number.
    IndexSet *_defs;
  
--- 44,55 ----
  //------------------------------PhaseLive--------------------------------------
  // Compute live-in/live-out
  class PhaseLive : public Phase {
    // Array of Sets of values live at the start of a block.
    // Indexed by block pre-order number.
!   IndexSet *_live; // live out
!   IndexSet *_livein; // live in
  
    // Array of Sets of values defined locally in the block
    // Indexed by block pre-order number.
    IndexSet *_defs;
  
*** 60,86 ****
  
    const PhaseCFG &_cfg;         // Basic blocks
    const LRG_List &_names;       // Mapping from Nodes to live ranges
    uint _maxlrg;                 // Largest live-range number
    Arena *_arena;
  
    IndexSet *getset( Block *p );
    IndexSet *getfreeset( );
!   void freeset( const Block *p );
    void add_liveout( Block *p, uint r, VectorSet &first_pass );
    void add_liveout( Block *p, IndexSet *lo, VectorSet &first_pass );
  
  public:
!   PhaseLive(const PhaseCFG &cfg, const LRG_List &names, Arena *arena);
    ~PhaseLive() {}
    // Compute liveness info
    void compute(uint maxlrg);
    // Reset arena storage
    void reset() { _live = NULL; }
  
    // Return the live-out set for this block
    IndexSet *live( const Block * b ) { return &_live[b->_pre_order-1]; }
  
  #ifndef PRODUCT
    void dump( const Block *b ) const;
    void stats(uint iters) const;
  #endif
--- 61,90 ----
  
    const PhaseCFG &_cfg;         // Basic blocks
    const LRG_List &_names;       // Mapping from Nodes to live ranges
    uint _maxlrg;                 // Largest live-range number
    Arena *_arena;
+   bool _keep_deltas;            // Retain live in information
  
    IndexSet *getset( Block *p );
    IndexSet *getfreeset( );
!   void freeset( Block *p );
    void add_liveout( Block *p, uint r, VectorSet &first_pass );
    void add_liveout( Block *p, IndexSet *lo, VectorSet &first_pass );
+   void add_livein( Block *p, IndexSet *lo );
  
  public:
!   PhaseLive(const PhaseCFG &cfg, const LRG_List &names, Arena *arena, bool keep_deltas);
    ~PhaseLive() {}
    // Compute liveness info
    void compute(uint maxlrg);
    // Reset arena storage
    void reset() { _live = NULL; }
  
    // Return the live-out set for this block
    IndexSet *live( const Block * b ) { return &_live[b->_pre_order-1]; }
+   IndexSet *livein( const Block * b ) { return &_livein[b->_pre_order - 1]; }
  
  #ifndef PRODUCT
    void dump( const Block *b ) const;
    void stats(uint iters) const;
  #endif