src/share/vm/opto/cfgnode.cpp

rev 8739 : 8004073: Implement C2 Ideal node specific dump() method
Summary: add Node::dump_rel() to dump a node and its related nodes (the notion of "related" depends on the node at hand); add Node::dump_comp() to dump a node in compact representation; add Node::dump_rel_comp() to dump a node and its related nodes in compact representation; add the required machinery; extend some C2 IR nodes with compact and related dumping
Reviewed-by:

*** 2045,2059 ****
--- 2045,2081 ----
  
  const RegMask &GotoNode::out_RegMask() const {
    return RegMask::Empty;
  }
  
+ #ifndef PRODUCT
+ //-------------------------------rel-------------------------------------------
+ // The related nodes of a GotoNode are all inputs at level 1, as well as the
+ // outputs at level 1. This is regardless of compact mode.
+ void GotoNode::rel(GrowableArray<Node*> *in_rel, GrowableArray<Node*> *out_rel, bool compact) const {
+   this->collect_nodes(in_rel, 1, false, false);
+   this->collect_nodes(out_rel, -1, false, false);
+ }
+ #endif
+ 
+ 
  //=============================================================================
  const RegMask &JumpNode::out_RegMask() const {
    return RegMask::Empty;
  }
  
+ #ifndef PRODUCT
+ //-------------------------------rel-------------------------------------------
+ // The related nodes of a JumpNode are all inputs at level 1, as well as the
+ // outputs at level 2 (to include actual jump targets beyond projection nodes).
+ // This is regardless of compact mode.
+ void JumpNode::rel(GrowableArray<Node*> *in_rel, GrowableArray<Node*> *out_rel, bool compact) const {
+   this->collect_nodes(in_rel, 1, false, false);
+   this->collect_nodes(out_rel, -2, false, false);
+ }
+ #endif
+ 
  //=============================================================================
  const RegMask &JProjNode::out_RegMask() const {
    return RegMask::Empty;
  }
  
*** 2105,2114 ****
--- 2127,2147 ----
  #ifndef PRODUCT
  void JumpProjNode::dump_spec(outputStream *st) const {
    ProjNode::dump_spec(st);
    st->print("@bci %d ",_dest_bci);
  }
+ 
+ void JumpProjNode::dump_comp_spec(outputStream *st) const {
+   ProjNode::dump_comp_spec(st);
+   st->print("(%d)%d@%d", _switch_val, _proj_no, _dest_bci);
+ }
+ 
+ void JumpProjNode::rel(GrowableArray<Node*> *in_rel, GrowableArray<Node*> *out_rel, bool compact) const {
+   // The related nodes of a JumpProjNode are its inputs and outputs at level 1.
+   this->collect_nodes(in_rel, 1, false, false);
+   this->collect_nodes(out_rel, -1, false, false);
+ }
  #endif
  
  //=============================================================================
  //------------------------------Value------------------------------------------
  // Check for being unreachable, or for coming from a Rethrow.  Rethrow's cannot