1366 }
1367 
1368 // Get a narrow oop constant from a ConNNode.
1369 intptr_t Node::get_narrowcon() const {
1370   assert( Opcode() == Op_ConN, "" );
1371   return ((ConNNode*)this)->type()->is_narrowoop()->get_con();
1372 }
1373 
1374 // Get a long constant from a ConNode.
1375 // Return a default value if there is no apparent constant here.
1376 const TypeLong* Node::find_long_type() const {
1377   if (this->is_Type()) {
1378     return this->as_Type()->type()->isa_long();
1379   } else if (this->is_Con()) {
1380     assert(is_Mach(), "should be ConNode(TypeNode) or else a MachNode");
1381     return this->bottom_type()->isa_long();
1382   }
1383   return NULL;
1384 }
1385 















1386 // Get a double constant from a ConstNode.
1387 // Returns the constant if it is a double ConstNode
1388 jdouble Node::getd() const {
1389   assert( Opcode() == Op_ConD, "" );
1390   return ((ConDNode*)this)->type()->is_double_constant()->getd();
1391 }
1392 
1393 // Get a float constant from a ConstNode.
1394 // Returns the constant if it is a float ConstNode
1395 jfloat Node::getf() const {
1396   assert( Opcode() == Op_ConF, "" );
1397   return ((ConFNode*)this)->type()->is_float_constant()->getf();
1398 }
1399 
1400 #ifndef PRODUCT
1401 
1402 //----------------------------NotANode----------------------------------------
1403 // Used in debugging code to avoid walking across dead or uninitialized edges.
1404 static inline bool NotANode(const Node* n) {
1405   if (n == NULL)                   return true;

1366 }
1367 
1368 // Get a narrow oop constant from a ConNNode.
1369 intptr_t Node::get_narrowcon() const {
1370   assert( Opcode() == Op_ConN, "" );
1371   return ((ConNNode*)this)->type()->is_narrowoop()->get_con();
1372 }
1373 
1374 // Get a long constant from a ConNode.
1375 // Return a default value if there is no apparent constant here.
1376 const TypeLong* Node::find_long_type() const {
1377   if (this->is_Type()) {
1378     return this->as_Type()->type()->isa_long();
1379   } else if (this->is_Con()) {
1380     assert(is_Mach(), "should be ConNode(TypeNode) or else a MachNode");
1381     return this->bottom_type()->isa_long();
1382   }
1383   return NULL;
1384 }
1385 
1386 
1387 /**
1388  * Return a ptr type for nodes which should have it.
1389  */
1390 const TypePtr* Node::get_ptr_type() const {
1391   const TypePtr* tp = this->bottom_type()->make_ptr();
1392 #ifdef ASSERT
1393   if (tp == NULL) {
1394     this->dump(1);
1395     assert((tp != NULL), "unexpected node type");
1396   }
1397 #endif
1398   return tp;
1399 }
1400 
1401 // Get a double constant from a ConstNode.
1402 // Returns the constant if it is a double ConstNode
1403 jdouble Node::getd() const {
1404   assert( Opcode() == Op_ConD, "" );
1405   return ((ConDNode*)this)->type()->is_double_constant()->getd();
1406 }
1407 
1408 // Get a float constant from a ConstNode.
1409 // Returns the constant if it is a float ConstNode
1410 jfloat Node::getf() const {
1411   assert( Opcode() == Op_ConF, "" );
1412   return ((ConFNode*)this)->type()->is_float_constant()->getf();
1413 }
1414 
1415 #ifndef PRODUCT
1416 
1417 //----------------------------NotANode----------------------------------------
1418 // Used in debugging code to avoid walking across dead or uninitialized edges.
1419 static inline bool NotANode(const Node* n) {
1420   if (n == NULL)                   return true;