Mercurial > hg > graal-compiler
comparison src/cpu/zero/vm/register_zero.hpp @ 1010:354d3184f6b2
6890308: integrate zero assembler hotspot changes
Reviewed-by: never
Contributed-by: gbenson@redhat.com
author | never |
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date | Tue, 13 Oct 2009 12:04:21 -0700 |
parents | |
children | c18cbe5936b8 |
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1009:03b336640699 | 1010:354d3184f6b2 |
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1 /* | |
2 * Copyright 2000-2007 Sun Microsystems, Inc. All Rights Reserved. | |
3 * Copyright 2007 Red Hat, Inc. | |
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 * | |
6 * This code is free software; you can redistribute it and/or modify it | |
7 * under the terms of the GNU General Public License version 2 only, as | |
8 * published by the Free Software Foundation. | |
9 * | |
10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 * version 2 for more details (a copy is included in the LICENSE file that | |
14 * accompanied this code). | |
15 * | |
16 * You should have received a copy of the GNU General Public License version | |
17 * 2 along with this work; if not, write to the Free Software Foundation, | |
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 * | |
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
21 * CA 95054 USA or visit www.sun.com if you need additional information or | |
22 * have any questions. | |
23 * | |
24 */ | |
25 | |
26 class VMRegImpl; | |
27 typedef VMRegImpl* VMReg; | |
28 | |
29 // Use Register as shortcut | |
30 class RegisterImpl; | |
31 typedef RegisterImpl* Register; | |
32 | |
33 inline Register as_Register(int encoding) { | |
34 return (Register)(intptr_t) encoding; | |
35 } | |
36 | |
37 // The implementation of integer registers for the zero architecture | |
38 class RegisterImpl : public AbstractRegisterImpl { | |
39 public: | |
40 enum { | |
41 number_of_registers = 0 | |
42 }; | |
43 | |
44 // construction | |
45 inline friend Register as_Register(int encoding); | |
46 VMReg as_VMReg(); | |
47 | |
48 // derived registers, offsets, and addresses | |
49 Register successor() const { | |
50 return as_Register(encoding() + 1); | |
51 } | |
52 | |
53 // accessors | |
54 int encoding() const { | |
55 assert(is_valid(), "invalid register"); | |
56 return (intptr_t)this; | |
57 } | |
58 bool is_valid() const { | |
59 return 0 <= (intptr_t) this && (intptr_t)this < number_of_registers; | |
60 } | |
61 const char* name() const; | |
62 }; | |
63 | |
64 // Use FloatRegister as shortcut | |
65 class FloatRegisterImpl; | |
66 typedef FloatRegisterImpl* FloatRegister; | |
67 | |
68 inline FloatRegister as_FloatRegister(int encoding) { | |
69 return (FloatRegister)(intptr_t) encoding; | |
70 } | |
71 | |
72 // The implementation of floating point registers for the zero architecture | |
73 class FloatRegisterImpl : public AbstractRegisterImpl { | |
74 public: | |
75 enum { | |
76 number_of_registers = 0 | |
77 }; | |
78 | |
79 // construction | |
80 inline friend FloatRegister as_FloatRegister(int encoding); | |
81 VMReg as_VMReg(); | |
82 | |
83 // derived registers, offsets, and addresses | |
84 FloatRegister successor() const { | |
85 return as_FloatRegister(encoding() + 1); | |
86 } | |
87 | |
88 // accessors | |
89 int encoding() const { | |
90 assert(is_valid(), "invalid register"); | |
91 return (intptr_t)this; | |
92 } | |
93 bool is_valid() const { | |
94 return 0 <= (intptr_t) this && (intptr_t)this < number_of_registers; | |
95 } | |
96 const char* name() const; | |
97 }; | |
98 | |
99 class ConcreteRegisterImpl : public AbstractRegisterImpl { | |
100 public: | |
101 enum { | |
102 number_of_registers = RegisterImpl::number_of_registers + | |
103 FloatRegisterImpl::number_of_registers | |
104 }; | |
105 | |
106 static const int max_gpr; | |
107 static const int max_fpr; | |
108 }; | |
109 | |
110 CONSTANT_REGISTER_DECLARATION(Register, noreg, (-1)); |