1 /*
2 * Copyright (c) 1997, 2009, 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 Compile;
26
27 //------------------------------Phase------------------------------------------
28 // Most optimizations are done in Phases. Creating a phase does any long
29 // running analysis required, and caches the analysis in internal data
30 // structures. Later the analysis is queried using transform() calls to
31 // guide transforming the program. When the Phase is deleted, so is any
32 // cached analysis info. This basic Phase class mostly contains timing and
33 // memory management code.
34 class Phase : public StackObj {
35 public:
36 enum PhaseNumber {
37 Compiler, // Top-level compiler phase
38 Parser, // Parse bytecodes
39 Remove_Useless, // Remove useless nodes
40 Optimistic, // Optimistic analysis phase
41 GVN, // Pessimistic global value numbering phase
42 Ins_Select, // Instruction selection phase
43 CFG, // Build a CFG
44 BlockLayout, // Linear ordering of blocks
92
93 // Subtimers for _t_registerAllocation
94 static elapsedTimer _t_ctorChaitin;
95 static elapsedTimer _t_buildIFGphysical;
96 static elapsedTimer _t_computeLive;
97 static elapsedTimer _t_regAllocSplit;
98 static elapsedTimer _t_postAllocCopyRemoval;
99 static elapsedTimer _t_fixupSpills;
100
101 // Subtimers for _t_output
102 static elapsedTimer _t_instrSched;
103 static elapsedTimer _t_buildOopMaps;
104 #endif
105 public:
106 Compile * C;
107 Phase( PhaseNumber pnum );
108 #ifndef PRODUCT
109 static void print_timers();
110 #endif
111 };
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1 /*
2 * Copyright (c) 1997, 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_PHASE_HPP
26 #define SHARE_VM_OPTO_PHASE_HPP
27
28 #include "libadt/port.hpp"
29 #include "runtime/timer.hpp"
30
31 class Compile;
32
33 //------------------------------Phase------------------------------------------
34 // Most optimizations are done in Phases. Creating a phase does any long
35 // running analysis required, and caches the analysis in internal data
36 // structures. Later the analysis is queried using transform() calls to
37 // guide transforming the program. When the Phase is deleted, so is any
38 // cached analysis info. This basic Phase class mostly contains timing and
39 // memory management code.
40 class Phase : public StackObj {
41 public:
42 enum PhaseNumber {
43 Compiler, // Top-level compiler phase
44 Parser, // Parse bytecodes
45 Remove_Useless, // Remove useless nodes
46 Optimistic, // Optimistic analysis phase
47 GVN, // Pessimistic global value numbering phase
48 Ins_Select, // Instruction selection phase
49 CFG, // Build a CFG
50 BlockLayout, // Linear ordering of blocks
98
99 // Subtimers for _t_registerAllocation
100 static elapsedTimer _t_ctorChaitin;
101 static elapsedTimer _t_buildIFGphysical;
102 static elapsedTimer _t_computeLive;
103 static elapsedTimer _t_regAllocSplit;
104 static elapsedTimer _t_postAllocCopyRemoval;
105 static elapsedTimer _t_fixupSpills;
106
107 // Subtimers for _t_output
108 static elapsedTimer _t_instrSched;
109 static elapsedTimer _t_buildOopMaps;
110 #endif
111 public:
112 Compile * C;
113 Phase( PhaseNumber pnum );
114 #ifndef PRODUCT
115 static void print_timers();
116 #endif
117 };
118
119 #endif // SHARE_VM_OPTO_PHASE_HPP
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