1 /*
2 * Copyright (c) 2000, 2006, 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 class Node;
26 class Matcher;
27 class PhaseCFG;
28
29 #define MAX_REG_ALLOCATORS 10
30
31 //------------------------------PhaseRegAlloc------------------------------------
32 // Abstract register allocator
33 class PhaseRegAlloc : public Phase {
34 static void (*_alloc_statistics[MAX_REG_ALLOCATORS])();
35 static int _num_allocators;
36
37 protected:
38 OptoRegPair *_node_regs;
39 uint _node_regs_max_index;
40 VectorSet _node_oops; // Mapping from node indices to oopiness
41
42 void alloc_node_regs(int size); // allocate _node_regs table with at least "size" elements
43
44 PhaseRegAlloc( uint unique, PhaseCFG &cfg, Matcher &matcher,
114 }
115
116 // Platform dependent hook for actions prior to allocation
117 void pd_preallocate_hook();
118
119 #ifdef ASSERT
120 // Platform dependent hook for verification after allocation. Will
121 // only get called when compiling with asserts.
122 void pd_postallocate_verify_hook();
123 #endif
124
125 #ifndef PRODUCT
126 static int _total_framesize;
127 static int _max_framesize;
128
129 virtual void dump_frame() const = 0;
130 virtual char *dump_register( const Node *n, char *buf ) const = 0;
131 static void print_statistics();
132 #endif
133 };
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1 /*
2 * Copyright (c) 2000, 2010, 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_REGALLOC_HPP
26 #define SHARE_VM_OPTO_REGALLOC_HPP
27
28 #include "code/vmreg.hpp"
29 #include "opto/block.hpp"
30 #include "opto/matcher.hpp"
31 #include "opto/phase.hpp"
32
33 class Node;
34 class Matcher;
35 class PhaseCFG;
36
37 #define MAX_REG_ALLOCATORS 10
38
39 //------------------------------PhaseRegAlloc------------------------------------
40 // Abstract register allocator
41 class PhaseRegAlloc : public Phase {
42 static void (*_alloc_statistics[MAX_REG_ALLOCATORS])();
43 static int _num_allocators;
44
45 protected:
46 OptoRegPair *_node_regs;
47 uint _node_regs_max_index;
48 VectorSet _node_oops; // Mapping from node indices to oopiness
49
50 void alloc_node_regs(int size); // allocate _node_regs table with at least "size" elements
51
52 PhaseRegAlloc( uint unique, PhaseCFG &cfg, Matcher &matcher,
122 }
123
124 // Platform dependent hook for actions prior to allocation
125 void pd_preallocate_hook();
126
127 #ifdef ASSERT
128 // Platform dependent hook for verification after allocation. Will
129 // only get called when compiling with asserts.
130 void pd_postallocate_verify_hook();
131 #endif
132
133 #ifndef PRODUCT
134 static int _total_framesize;
135 static int _max_framesize;
136
137 virtual void dump_frame() const = 0;
138 virtual char *dump_register( const Node *n, char *buf ) const = 0;
139 static void print_statistics();
140 #endif
141 };
142
143 #endif // SHARE_VM_OPTO_REGALLOC_HPP
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