Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- a/src/share/vm/interpreter/rewriter.hpp	Mon Apr 20 14:48:03 2009 -0700
     1.2 +++ b/src/share/vm/interpreter/rewriter.hpp	Tue Apr 21 23:21:04 2009 -0700
     1.3 @@ -25,13 +25,44 @@
     1.4  // The Rewriter adds caches to the constant pool and rewrites bytecode indices
     1.5  // pointing into the constant pool for better interpreter performance.
     1.6  
     1.7 -class Rewriter: public AllStatic {
     1.8 +class Rewriter: public StackObj {
     1.9   private:
    1.10 -  static void compute_index_maps(constantPoolHandle pool, intArray*& index_map, intStack*& inverse_index_map);
    1.11 -  static constantPoolCacheHandle new_constant_pool_cache(intArray& inverse_index_map, TRAPS);
    1.12 -  static methodHandle rewrite_method(methodHandle method, intArray& index_map, TRAPS);
    1.13 -  static void rewrite_Object_init(methodHandle method, TRAPS);
    1.14 +  instanceKlassHandle _klass;
    1.15 +  constantPoolHandle  _pool;
    1.16 +  objArrayHandle      _methods;
    1.17 +  intArray            _cp_map;
    1.18 +  intStack            _cp_cache_map;
    1.19 +
    1.20 +  void init_cp_map(int length) {
    1.21 +    _cp_map.initialize(length, -1);
    1.22 +    // Choose an initial value large enough that we don't get frequent
    1.23 +    // calls to grow().
    1.24 +    _cp_cache_map.initialize(length / 2);
    1.25 +  }
    1.26 +  int  cp_entry_to_cp_cache(int i) { assert(has_cp_cache(i), "oob"); return _cp_map[i]; }
    1.27 +  bool has_cp_cache(int i) { return (uint)i < (uint)_cp_map.length() && _cp_map[i] >= 0; }
    1.28 +  int maybe_add_cp_cache_entry(int i) { return has_cp_cache(i) ? _cp_map[i] : add_cp_cache_entry(i); }
    1.29 +  int add_cp_cache_entry(int cp_index) {
    1.30 +    assert(_cp_map[cp_index] == -1, "not twice on same cp_index");
    1.31 +    int cache_index = _cp_cache_map.append(cp_index);
    1.32 +    _cp_map.at_put(cp_index, cache_index);
    1.33 +    assert(cp_entry_to_cp_cache(cp_index) == cache_index, "");
    1.34 +    return cache_index;
    1.35 +  }
    1.36 +  int add_extra_cp_cache_entry(int main_entry);
    1.37 +
    1.38 +  // All the work goes in here:
    1.39 +  Rewriter(instanceKlassHandle klass, TRAPS);
    1.40 +
    1.41 +  void compute_index_maps();
    1.42 +  void make_constant_pool_cache(TRAPS);
    1.43 +  void scan_method(methodOop m);
    1.44 +  methodHandle rewrite_jsrs(methodHandle m, TRAPS);
    1.45 +  void rewrite_Object_init(methodHandle m, TRAPS);
    1.46 +  int  rewrite_member_reference(address bcp, int offset);
    1.47 +  void rewrite_invokedynamic(address bcp, int offset, int cp_index);
    1.48  
    1.49   public:
    1.50 +  // Driver routine:
    1.51    static void rewrite(instanceKlassHandle klass, TRAPS);
    1.52  };