src/share/vm/opto/reg_split.cpp

*** 1,7 ****
  /*
!  * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 57,67 ****
  // not cover the input (or output), use the input (or output) mask instead.
  Node *PhaseChaitin::get_spillcopy_wide( Node *def, Node *use, uint uidx ) {
    // If ideal reg doesn't exist we've got a bad schedule happening
    // that is forcing us to spill something that isn't spillable.
    // Bail rather than abort
!   int ireg = def->ideal_reg();
    if( ireg == 0 || ireg == Op_RegFlags ) {
      assert(false, "attempted to spill a non-spillable item");
      C->record_method_not_compilable("attempted to spill a non-spillable item");
      return NULL;
    }
--- 57,67 ----
  // not cover the input (or output), use the input (or output) mask instead.
  Node *PhaseChaitin::get_spillcopy_wide( Node *def, Node *use, uint uidx ) {
    // If ideal reg doesn't exist we've got a bad schedule happening
    // that is forcing us to spill something that isn't spillable.
    // Bail rather than abort
!   uint ireg = def->ideal_reg();
    if( ireg == 0 || ireg == Op_RegFlags ) {
      assert(false, "attempted to spill a non-spillable item");
      C->record_method_not_compilable("attempted to spill a non-spillable item");
      return NULL;
    }
*** 1161,1171 ****
            set_was_spilled(n);
          assert(!n->is_Phi(),"Cannot insert Phi into DEFS list");
          // Grab UP info for DEF
          const RegMask &dmask = n->out_RegMask();
          bool defup = dmask.is_UP();
!         int ireg = n->ideal_reg();
          bool is_vect = RegMask::is_vector(ireg);
          // Only split at Def if this is a HRP block or bound (and spilled once)
          if( !n->rematerialize() &&
              (((dmask.is_bound(ireg) || !is_vect && dmask.is_misaligned_pair()) &&
                (deflrg._direct_conflict || deflrg._must_spill)) ||
--- 1161,1171 ----
            set_was_spilled(n);
          assert(!n->is_Phi(),"Cannot insert Phi into DEFS list");
          // Grab UP info for DEF
          const RegMask &dmask = n->out_RegMask();
          bool defup = dmask.is_UP();
!         uint ireg = n->ideal_reg();
          bool is_vect = RegMask::is_vector(ireg);
          // Only split at Def if this is a HRP block or bound (and spilled once)
          if( !n->rematerialize() &&
              (((dmask.is_bound(ireg) || !is_vect && dmask.is_misaligned_pair()) &&
                (deflrg._direct_conflict || deflrg._must_spill)) ||