671 }
 672 
 673 //------------------------------calling_convention-----------------------------
 674 void CallNode::calling_convention( BasicType* sig_bt, VMRegPair *parm_regs, uint argcnt ) const {
 675   // Use the standard compiler calling convention
 676   Matcher::calling_convention( sig_bt, parm_regs, argcnt, true );
 677 }
 678 
 679 
 680 //------------------------------match------------------------------------------
 681 // Construct projections for control, I/O, memory-fields, ..., and
 682 // return result(s) along with their RegMask info
 683 Node *CallNode::match( const ProjNode *proj, const Matcher *match ) {
 684   switch (proj->_con) {
 685   case TypeFunc::Control:
 686   case TypeFunc::I_O:
 687   case TypeFunc::Memory:
 688     return new MachProjNode(this,proj->_con,RegMask::Empty,MachProjNode::unmatched_proj);
 689 
 690   case TypeFunc::Parms+1:       // For LONG & DOUBLE returns
 691     assert(tf()->_range->field_at(TypeFunc::Parms+1) == Type::HALF, "");
 692     // 2nd half of doubles and longs
 693     return new MachProjNode(this,proj->_con, RegMask::Empty, (uint)OptoReg::Bad);
 694 
 695   case TypeFunc::Parms: {       // Normal returns
 696     uint ideal_reg = tf()->range()->field_at(TypeFunc::Parms)->ideal_reg();
 697     OptoRegPair regs = is_CallRuntime()
 698       ? match->c_return_value(ideal_reg,true)  // Calls into C runtime
 699       : match->  return_value(ideal_reg,true); // Calls into compiled Java code
 700     RegMask rm = RegMask(regs.first());
 701     if( OptoReg::is_valid(regs.second()) )
 702       rm.Insert( regs.second() );
 703     return new MachProjNode(this,proj->_con,rm,ideal_reg);
 704   }
 705 
 706   case TypeFunc::ReturnAdr:
 707   case TypeFunc::FramePtr:
 708   default:
 709     ShouldNotReachHere();
 710   }
 711   return NULL;

 671 }
 672 
 673 //------------------------------calling_convention-----------------------------
 674 void CallNode::calling_convention( BasicType* sig_bt, VMRegPair *parm_regs, uint argcnt ) const {
 675   // Use the standard compiler calling convention
 676   Matcher::calling_convention( sig_bt, parm_regs, argcnt, true );
 677 }
 678 
 679 
 680 //------------------------------match------------------------------------------
 681 // Construct projections for control, I/O, memory-fields, ..., and
 682 // return result(s) along with their RegMask info
 683 Node *CallNode::match( const ProjNode *proj, const Matcher *match ) {
 684   switch (proj->_con) {
 685   case TypeFunc::Control:
 686   case TypeFunc::I_O:
 687   case TypeFunc::Memory:
 688     return new MachProjNode(this,proj->_con,RegMask::Empty,MachProjNode::unmatched_proj);
 689 
 690   case TypeFunc::Parms+1:       // For LONG & DOUBLE returns
 691     assert(tf()->range()->field_at(TypeFunc::Parms+1) == Type::HALF, "");
 692     // 2nd half of doubles and longs
 693     return new MachProjNode(this,proj->_con, RegMask::Empty, (uint)OptoReg::Bad);
 694 
 695   case TypeFunc::Parms: {       // Normal returns
 696     uint ideal_reg = tf()->range()->field_at(TypeFunc::Parms)->ideal_reg();
 697     OptoRegPair regs = is_CallRuntime()
 698       ? match->c_return_value(ideal_reg,true)  // Calls into C runtime
 699       : match->  return_value(ideal_reg,true); // Calls into compiled Java code
 700     RegMask rm = RegMask(regs.first());
 701     if( OptoReg::is_valid(regs.second()) )
 702       rm.Insert( regs.second() );
 703     return new MachProjNode(this,proj->_con,rm,ideal_reg);
 704   }
 705 
 706   case TypeFunc::ReturnAdr:
 707   case TypeFunc::FramePtr:
 708   default:
 709     ShouldNotReachHere();
 710   }
 711   return NULL;