Mercurial > hg > truffle
comparison src/share/vm/opto/mathexactnode.hpp @ 12323:c9ccd7b85f20
8024924: Intrinsify java.lang.Math.addExact
Reviewed-by: kvn, twisti
author | rbackman |
---|---|
date | Fri, 27 Sep 2013 08:39:19 +0200 |
parents | |
children | 4a2acfb16e97 |
comparison
equal
deleted
inserted
replaced
12322:72b7e96c1922 | 12323:c9ccd7b85f20 |
---|---|
1 /* | |
2 * Copyright (c) 2013, 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 #ifndef SHARE_VM_OPTO_MATHEXACTNODE_HPP | |
26 #define SHARE_VM_OPTO_MATHEXACTNODE_HPP | |
27 | |
28 #include "opto/multnode.hpp" | |
29 #include "opto/node.hpp" | |
30 #include "opto/type.hpp" | |
31 | |
32 class Node; | |
33 | |
34 class PhaseGVN; | |
35 class PhaseTransform; | |
36 | |
37 class MathExactNode : public MultiNode { | |
38 public: | |
39 MathExactNode(Node* ctrl, Node* in1, Node* in2); | |
40 enum { | |
41 result_proj_node = 0, | |
42 flags_proj_node = 1 | |
43 }; | |
44 virtual int Opcode() const; | |
45 virtual Node* Identity(PhaseTransform* phase) { return this; } | |
46 virtual Node* Ideal(PhaseGVN* phase, bool can_reshape) { return NULL; } | |
47 virtual const Type* Value(PhaseTransform* phase) const { return bottom_type(); } | |
48 virtual uint hash() const { return Node::hash(); } | |
49 virtual bool is_CFG() const { return false; } | |
50 virtual uint ideal_reg() const { return NotAMachineReg; } | |
51 | |
52 ProjNode* result_node() { return proj_out(result_proj_node); } | |
53 ProjNode* flags_node() { return proj_out(flags_proj_node); } | |
54 protected: | |
55 Node* no_overflow(PhaseGVN *phase, Node* new_result); | |
56 }; | |
57 | |
58 class AddExactINode : public MathExactNode { | |
59 public: | |
60 AddExactINode(Node* ctrl, Node* in1, Node* in2) : MathExactNode(ctrl, in1, in2) {} | |
61 virtual int Opcode() const; | |
62 virtual const Type* bottom_type() const { return TypeTuple::INT_CC_PAIR; } | |
63 virtual Node* match(const ProjNode* proj, const Matcher* m); | |
64 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
65 }; | |
66 | |
67 class FlagsProjNode : public ProjNode { | |
68 public: | |
69 FlagsProjNode(Node* src, uint con) : ProjNode(src, con) { | |
70 init_class_id(Class_FlagsProj); | |
71 } | |
72 | |
73 virtual int Opcode() const; | |
74 virtual bool is_CFG() const { return false; } | |
75 virtual const Type* bottom_type() const { return TypeInt::CC; } | |
76 virtual uint ideal_reg() const { return Op_RegFlags; } | |
77 }; | |
78 | |
79 | |
80 #endif | |
81 |