src/share/vm/opto/machnode.cpp

*** 666,677 ****
  
  //=============================================================================
  
  uint MachCallNode::cmp( const Node &n ) const
  { return _tf == ((MachCallNode&)n)._tf; }
! const Type *MachCallNode::bottom_type() const { return tf()->range(); }
! const Type* MachCallNode::Value(PhaseGVN* phase) const { return tf()->range(); }
  
  #ifndef PRODUCT
  void MachCallNode::dump_spec(outputStream *st) const {
    st->print("# ");
    if (tf() != NULL)  tf()->dump_on(st);
--- 666,677 ----
  
  //=============================================================================
  
  uint MachCallNode::cmp( const Node &n ) const
  { return _tf == ((MachCallNode&)n)._tf; }
! const Type *MachCallNode::bottom_type() const { return tf()->range_cc(); }
! const Type* MachCallNode::Value(PhaseGVN* phase) const { return tf()->range_cc(); }
  
  #ifndef PRODUCT
  void MachCallNode::dump_spec(outputStream *st) const {
    st->print("# ");
    if (tf() != NULL)  tf()->dump_on(st);
*** 679,693 ****
    if (jvms() != NULL)  jvms()->dump_spec(st);
  }
  #endif
  
  bool MachCallNode::return_value_is_used() const {
!   if (tf()->range()->cnt() == TypeFunc::Parms) {
      // void return
      return false;
    }
  
    // find the projection corresponding to the return value
    for (DUIterator_Fast imax, i = fast_outs(imax); i < imax; i++) {
      Node *use = fast_out(i);
      if (!use->is_Proj()) continue;
      if (use->as_Proj()->_con == TypeFunc::Parms) {
--- 679,695 ----
    if (jvms() != NULL)  jvms()->dump_spec(st);
  }
  #endif
  
  bool MachCallNode::return_value_is_used() const {
!   if (tf()->range_sig()->cnt() == TypeFunc::Parms) {
      // void return
      return false;
    }
  
+   assert(tf()->returns_value_type_as_fields(), "multiple return values not supported");
+ 
    // find the projection corresponding to the return value
    for (DUIterator_Fast imax, i = fast_outs(imax); i < imax; i++) {
      Node *use = fast_out(i);
      if (!use->is_Proj()) continue;
      if (use->as_Proj()->_con == TypeFunc::Parms) {
*** 699,713 ****
  
  // Similar to cousin class CallNode::returns_pointer
  // Because this is used in deoptimization, we want the type info, not the data
  // flow info; the interpreter will "use" things that are dead to the optimizer.
  bool MachCallNode::returns_pointer() const {
!   const TypeTuple *r = tf()->range();
    return (r->cnt() > TypeFunc::Parms &&
            r->field_at(TypeFunc::Parms)->isa_ptr());
  }
  
  //------------------------------Registers--------------------------------------
  const RegMask &MachCallNode::in_RegMask(uint idx) const {
    // Values in the domain use the users calling convention, embodied in the
    // _in_rms array of RegMasks.
    if (idx < tf()->domain_sig()->cnt()) {
--- 701,719 ----
  
  // Similar to cousin class CallNode::returns_pointer
  // Because this is used in deoptimization, we want the type info, not the data
  // flow info; the interpreter will "use" things that are dead to the optimizer.
  bool MachCallNode::returns_pointer() const {
!   const TypeTuple *r = tf()->range_sig();
    return (r->cnt() > TypeFunc::Parms &&
            r->field_at(TypeFunc::Parms)->isa_ptr());
  }
  
+ bool MachCallNode::returns_vt() const {
+   return tf()->returns_value_type_as_fields();
+ }
+ 
  //------------------------------Registers--------------------------------------
  const RegMask &MachCallNode::in_RegMask(uint idx) const {
    // Values in the domain use the users calling convention, embodied in the
    // _in_rms array of RegMasks.
    if (idx < tf()->domain_sig()->cnt()) {