src/share/vm/adlc/dfa.cpp

rev 461 : Fixed 6771309: debugging AD files is difficult without #line directives in generated code
Summary: more and better #line and #define directives in the generated code; ADLC itself accepts #line directives
Reviewed-by: never, kvn

*** 456,466 ****
    Expr::check_buffers();
  }
  
  
  class dfa_shared_preds {
!   enum { count = 2 };
  
    static bool        _found[count];
    static const char* _type [count];
    static const char* _var  [count];
    static const char* _pred [count];
--- 456,466 ----
    Expr::check_buffers();
  }
  
  
  class dfa_shared_preds {
!   enum { count = 4 };
  
    static bool        _found[count];
    static const char* _type [count];
    static const char* _var  [count];
    static const char* _pred [count];
*** 477,492 ****
--- 477,495 ----
      // Check previous character and recurse if needed
      char *prev = shared - 1;
      char c  = *prev;
      switch( c ) {
      case ' ':
+     case '\n':
        return dfa_shared_preds::valid_loc(pred, prev);
      case '!':
      case '(':
      case '<':
      case '=':
        return true;
+     case '"':  // such as: #line 10 "myfile.ad"\n mypredicate
+       return true;
      case '|':
        if( prev != pred && *(prev-1) == '|' ) return true;
      case '&':
        if( prev != pred && *(prev-1) == '&' ) return true;
      default:
*** 562,575 ****
        }
      }
    }
  };
  // shared predicates, _var and _pred entry should be the same length
! bool         dfa_shared_preds::_found[dfa_shared_preds::count] = { false, false };
! const char*  dfa_shared_preds::_type[dfa_shared_preds::count]  = { "int", "bool" };
! const char*  dfa_shared_preds::_var [dfa_shared_preds::count]  = { "_n_get_int__", "Compile__current____select_24_bit_instr__" };
! const char*  dfa_shared_preds::_pred[dfa_shared_preds::count]  = { "n->get_int()", "Compile::current()->select_24_bit_instr()" };
  
  
  void ArchDesc::gen_dfa_state_body(FILE* fp, Dict &minimize, ProductionState &status, Dict &operands_chained_from, int i) {
    // Start the body of each Op_XXX sub-dfa with a clean state.
    status.initialize();
--- 565,582 ----
        }
      }
    }
  };
  // shared predicates, _var and _pred entry should be the same length
! bool         dfa_shared_preds::_found[dfa_shared_preds::count]
!   = { false, false, false, false };
! const char*  dfa_shared_preds::_type[dfa_shared_preds::count]
!   = { "int", "jlong", "intptr_t", "bool" };
! const char*  dfa_shared_preds::_var [dfa_shared_preds::count]
!   = { "_n_get_int__", "_n_get_long__", "_n_get_intptr_t__", "Compile__current____select_24_bit_instr__" };
! const char*  dfa_shared_preds::_pred[dfa_shared_preds::count]
!   = { "n->get_int()", "n->get_long()", "n->get_intptr_t()", "Compile::current()->select_24_bit_instr()" };
  
  
  void ArchDesc::gen_dfa_state_body(FILE* fp, Dict &minimize, ProductionState &status, Dict &operands_chained_from, int i) {
    // Start the body of each Op_XXX sub-dfa with a clean state.
    status.initialize();