313       } else { // End of if Phi
 314 
 315         // Now check for 2-address instructions
 316         uint idx;
 317         if( n->is_Mach() && (idx=n->as_Mach()->two_adr()) ) {
 318           // Get the chosen name for the Node
 319           uint name = _phc._lrg_map.find(n);
 320           assert (name, "no 2-address specials");
 321           // Check for name mis-match on the 2-address input
 322           Node *m = n->in(idx);
 323           if (_phc._lrg_map.find(m) != name) {
 324             Node *copy;
 325             assert(!m->is_Con() || m->is_Mach(), "all Con must be Mach");
 326             // At this point it is unsafe to extend live ranges (6550579).
 327             // Rematerialize only constants as we do for Phi above.
 328             if(m->is_Mach() && m->as_Mach()->is_Con() &&
 329                m->as_Mach()->rematerialize()) {
 330               copy = m->clone();
 331               // Insert the copy in the basic block, just before us
 332               b->_nodes.insert(l++, copy);
 333               if(_phc.clone_projs(b, l, m, copy, _phc._lrg_map)) {
 334                 l++;
 335               }
 336             } else {
 337               const RegMask *rm = C->matcher()->idealreg2spillmask[m->ideal_reg()];
 338               copy = new (C) MachSpillCopyNode(m, *rm, *rm);
 339               // Insert the copy in the basic block, just before us
 340               b->_nodes.insert(l++, copy);
 341             }
 342             // Insert the copy in the use-def chain
 343             n->set_req(idx, copy);
 344             // Extend ("register allocate") the names array for the copy.
 345             _phc._lrg_map.extend(copy->_idx, name);
 346             _phc._cfg._bbs.map( copy->_idx, b );
 347           }
 348 
 349         } // End of is two-adr
 350 
 351         // Insert a copy at a debug use for a lrg which has high frequency
 352         if (b->_freq < OPTO_DEBUG_SPLIT_FREQ || b->is_uncommon(_phc._cfg._bbs)) {
 353           // Walk the debug inputs to the node and check for lrg freq
 354           JVMState* jvms = n->jvms();
 355           uint debug_start = jvms ? jvms->debug_start() : 999999;

 313       } else { // End of if Phi
 314 
 315         // Now check for 2-address instructions
 316         uint idx;
 317         if( n->is_Mach() && (idx=n->as_Mach()->two_adr()) ) {
 318           // Get the chosen name for the Node
 319           uint name = _phc._lrg_map.find(n);
 320           assert (name, "no 2-address specials");
 321           // Check for name mis-match on the 2-address input
 322           Node *m = n->in(idx);
 323           if (_phc._lrg_map.find(m) != name) {
 324             Node *copy;
 325             assert(!m->is_Con() || m->is_Mach(), "all Con must be Mach");
 326             // At this point it is unsafe to extend live ranges (6550579).
 327             // Rematerialize only constants as we do for Phi above.
 328             if(m->is_Mach() && m->as_Mach()->is_Con() &&
 329                m->as_Mach()->rematerialize()) {
 330               copy = m->clone();
 331               // Insert the copy in the basic block, just before us
 332               b->_nodes.insert(l++, copy);
 333               l += _phc.clone_projs(b, l, m, copy, _phc._lrg_map);


 334             } else {
 335               const RegMask *rm = C->matcher()->idealreg2spillmask[m->ideal_reg()];
 336               copy = new (C) MachSpillCopyNode(m, *rm, *rm);
 337               // Insert the copy in the basic block, just before us
 338               b->_nodes.insert(l++, copy);
 339             }
 340             // Insert the copy in the use-def chain
 341             n->set_req(idx, copy);
 342             // Extend ("register allocate") the names array for the copy.
 343             _phc._lrg_map.extend(copy->_idx, name);
 344             _phc._cfg._bbs.map( copy->_idx, b );
 345           }
 346 
 347         } // End of is two-adr
 348 
 349         // Insert a copy at a debug use for a lrg which has high frequency
 350         if (b->_freq < OPTO_DEBUG_SPLIT_FREQ || b->is_uncommon(_phc._cfg._bbs)) {
 351           // Walk the debug inputs to the node and check for lrg freq
 352           JVMState* jvms = n->jvms();
 353           uint debug_start = jvms ? jvms->debug_start() : 999999;