1/*
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25#include "precompiled.hpp"
26#include "memory/allocation.inline.hpp"
27#include "opto/addnode.hpp"
28#include "opto/compile.hpp"
29#include "opto/connode.hpp"
30#include "opto/machnode.hpp"
31#include "opto/matcher.hpp"
32#include "opto/memnode.hpp"
33#include "opto/phaseX.hpp"
34#include "opto/subnode.hpp"
35#include "runtime/sharedRuntime.hpp"
36
37// Optimization - Graph Style
38
39//=============================================================================
40//------------------------------hash-------------------------------------------
41uint ConNode::hash() const {
42  return (uintptr_t)in(TypeFunc::Control) + _type->hash();
43}
44
45//------------------------------make-------------------------------------------
46ConNode *ConNode::make(const Type *t) {
47  switch( t->basic_type() ) {
48  case T_INT:         return new ConINode( t->is_int() );
49  case T_LONG:        return new ConLNode( t->is_long() );
50  case T_FLOAT:       return new ConFNode( t->is_float_constant() );
51  case T_DOUBLE:      return new ConDNode( t->is_double_constant() );
52  case T_VOID:        return new ConNode ( Type::TOP );
53  case T_OBJECT:      return new ConPNode( t->is_ptr() );
54  case T_ARRAY:       return new ConPNode( t->is_aryptr() );
55  case T_ADDRESS:     return new ConPNode( t->is_ptr() );
56  case T_NARROWOOP:   return new ConNNode( t->is_narrowoop() );
57  case T_NARROWKLASS: return new ConNKlassNode( t->is_narrowklass() );
58  case T_METADATA:    return new ConPNode( t->is_ptr() );
59    // Expected cases:  TypePtr::NULL_PTR, any is_rawptr()
60    // Also seen: AnyPtr(TopPTR *+top); from command line:
61    //   r -XX:+PrintOpto -XX:CIStart=285 -XX:+CompileTheWorld -XX:CompileTheWorldStartAt=660
62    // %%%% Stop using TypePtr::NULL_PTR to represent nulls:  use either TypeRawPtr::NULL_PTR
63    // or else TypeOopPtr::NULL_PTR.  Then set Type::_basic_type[AnyPtr] = T_ILLEGAL
64  }
65  ShouldNotReachHere();
66  return NULL;
67}
68
69
70