1 /*
2 * Copyright (c) 2012, 2021, 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_OPTO_PHASETYPE_HPP
26 #define SHARE_OPTO_PHASETYPE_HPP
27
28 #define COMPILER_PHASES(flags) \
29 flags(BEFORE_STRINGOPTS, "Before StringOpts") \
30 flags(AFTER_STRINGOPTS, "After StringOpts") \
31 flags(BEFORE_REMOVEUSELESS, "Before RemoveUseless") \
32 flags(AFTER_PARSING, "After Parsing") \
33 flags(ITER_GVN1, "Iter GVN 1") \
34 flags(EXPAND_VUNBOX, "Expand VectorUnbox") \
35 flags(SCALARIZE_VBOX, "Scalarize VectorBox") \
36 flags(INLINE_VECTOR_REBOX, "Inline Vector Rebox Calls") \
37 flags(EXPAND_VBOX, "Expand VectorBox") \
38 flags(ELIMINATE_VBOX_ALLOC, "Eliminate VectorBoxAllocate") \
39 flags(PHASEIDEAL_BEFORE_EA, "PhaseIdealLoop before EA") \
40 flags(ITER_GVN_AFTER_VECTOR, "Iter GVN after vector box elimination") \
41 flags(ITER_GVN_BEFORE_EA, "Iter GVN before EA") \
42 flags(ITER_GVN_AFTER_EA, "Iter GVN after EA") \
43 flags(ITER_GVN_AFTER_ELIMINATION, "Iter GVN after eliminating allocations and locks") \
44 flags(PHASEIDEALLOOP1, "PhaseIdealLoop 1") \
45 flags(PHASEIDEALLOOP2, "PhaseIdealLoop 2") \
46 flags(PHASEIDEALLOOP3, "PhaseIdealLoop 3") \
47 flags(CCP1, "PhaseCCP 1") \
48 flags(ITER_GVN2, "Iter GVN 2") \
49 flags(PHASEIDEALLOOP_ITERATIONS, "PhaseIdealLoop iterations") \
50 flags(OPTIMIZE_FINISHED, "Optimize finished") \
51 flags(GLOBAL_CODE_MOTION, "Global code motion") \
52 flags(FINAL_CODE, "Final Code") \
53 flags(AFTER_EA, "After Escape Analysis") \
54 flags(BEFORE_CLOOPS, "Before CountedLoop") \
55 flags(AFTER_CLOOPS, "After CountedLoop") \
56 flags(BEFORE_BEAUTIFY_LOOPS, "Before beautify loops") \
57 flags(AFTER_BEAUTIFY_LOOPS, "After beautify loops") \
58 flags(BEFORE_MATCHING, "Before matching") \
59 flags(MATCHING, "After matching") \
60 flags(INCREMENTAL_INLINE, "Incremental Inline") \
61 flags(INCREMENTAL_INLINE_STEP, "Incremental Inline Step") \
62 flags(INCREMENTAL_INLINE_CLEANUP, "Incremental Inline Cleanup") \
63 flags(INCREMENTAL_BOXING_INLINE, "Incremental Boxing Inline") \
64 flags(CALL_CATCH_CLEANUP, "Call catch cleanup") \
65 flags(MACRO_EXPANSION, "Macro expand") \
66 flags(BARRIER_EXPANSION, "Barrier expand") \
67 flags(END, "End") \
68 flags(FAILURE, "Failure") \
69 flags(SPLIT_INLINES_ARRAY, "Split inlines array") \
70 flags(SPLIT_INLINES_ARRAY_IGVN, "IGVN after split inlines array") \
71 flags(DEBUG, "Debug")
72
73 #define table_entry(name, description) PHASE_##name,
74 enum CompilerPhaseType {
75 COMPILER_PHASES(table_entry)
76 PHASE_NUM_TYPES,
77 PHASE_NONE
78 };
79 #undef table_entry
80
81 static const char* phase_descriptions[] = {
82 #define array_of_labels(name, description) description,
83 COMPILER_PHASES(array_of_labels)
84 #undef array_of_labels
85 };
86
87 static const char* phase_names[] = {
88 #define array_of_labels(name, description) #name,
89 COMPILER_PHASES(array_of_labels)
90 #undef array_of_labels
91 };
92
93 class CompilerPhaseTypeHelper {
94 public:
95 static const char* to_name(CompilerPhaseType cpt) {
96 return phase_names[cpt];
97 }
98 static const char* to_description(CompilerPhaseType cpt) {
99 return phase_descriptions[cpt];
100 }
101 static int to_bitmask(CompilerPhaseType cpt) {
102 return (1 << cpt);
103 }
104 };
105
106 static CompilerPhaseType find_phase(const char* str) {
107 for (int i = 0; i < PHASE_NUM_TYPES; i++) {
108 if (strcmp(phase_names[i], str) == 0) {
109 return (CompilerPhaseType)i;
110 }
111 }
112 return PHASE_NONE;
113 }
114
115 class PhaseNameIter {
116 private:
117 char* _token;
118 char* _saved_ptr;
119 char* _list;
120
121 public:
122 PhaseNameIter(ccstrlist option) {
123 _list = (char*) canonicalize(option);
124 _saved_ptr = _list;
125 _token = strtok_r(_saved_ptr, ",", &_saved_ptr);
126 }
127
128 ~PhaseNameIter() {
129 FREE_C_HEAP_ARRAY(char, _list);
130 }
131
132 const char* operator*() const { return _token; }
133
134 PhaseNameIter& operator++() {
135 _token = strtok_r(NULL, ",", &_saved_ptr);
136 return *this;
137 }
138
139 ccstrlist canonicalize(ccstrlist option_value) {
140 char* canonicalized_list = NEW_C_HEAP_ARRAY(char, strlen(option_value) + 1, mtCompiler);
141 int i = 0;
142 char current;
143 while ((current = option_value[i]) != '\0') {
144 if (current == '\n' || current == ' ') {
145 canonicalized_list[i] = ',';
146 } else {
147 canonicalized_list[i] = current;
148 }
149 i++;
150 }
151 canonicalized_list[i] = '\0';
152 return canonicalized_list;
153 }
154 };
155
156 class PhaseNameValidator {
157 private:
158 bool _valid;
159 char* _bad;
160
161 public:
162 PhaseNameValidator(ccstrlist option, uint64_t& mask) : _valid(true), _bad(nullptr) {
163 for (PhaseNameIter iter(option); *iter != NULL && _valid; ++iter) {
164
165 CompilerPhaseType cpt = find_phase(*iter);
166 if (PHASE_NONE == cpt) {
167 const size_t len = MIN2<size_t>(strlen(*iter), 63) + 1; // cap len to a value we know is enough for all phase descriptions
168 _bad = NEW_C_HEAP_ARRAY(char, len, mtCompiler);
169 // strncpy always writes len characters. If the source string is shorter, the function fills the remaining bytes with NULLs.
170 strncpy(_bad, *iter, len);
171 _valid = false;
172 } else {
173 assert(cpt < 64, "out of bounds");
174 mask |= CompilerPhaseTypeHelper::to_bitmask(cpt);
175 }
176 }
177 }
178
179 ~PhaseNameValidator() {
180 if (_bad != NULL) {
181 FREE_C_HEAP_ARRAY(char, _bad);
182 }
183 }
184
185 bool is_valid() const {
186 return _valid;
187 }
188
189 const char* what() const {
190 return _bad;
191 }
192 };
193
194 #endif // SHARE_OPTO_PHASETYPE_HPP