Mercurial > hg > graal-compiler
annotate src/share/vm/adlc/main.cpp @ 1766:02f0a9b6f654
6969586: OptimizeStringConcat: SIGSEGV in LoadNode::Value()
Reviewed-by: kvn
author | never |
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date | Mon, 30 Aug 2010 17:27:35 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // MAIN.CPP - Entry point for the Architecture Description Language Compiler | |
26 #include "adlc.hpp" | |
27 | |
28 //------------------------------Prototypes------------------------------------- | |
29 static void usage(ArchDesc& AD); // Print usage message and exit | |
30 static char *strip_ext(char *fname); // Strip off name extension | |
31 static char *base_plus_suffix(const char* base, const char *suffix);// New concatenated string | |
32 static char *prefix_plus_base_plus_suffix(const char* prefix, const char* base, const char *suffix);// New concatenated string | |
33 static int get_legal_text(FileBuff &fbuf, char **legal_text); // Get pointer to legal text | |
34 | |
35 ArchDesc* globalAD = NULL; // global reference to Architecture Description object | |
36 | |
37 //------------------------------main------------------------------------------- | |
38 int main(int argc, char *argv[]) | |
39 { | |
40 ArchDesc AD; // Architecture Description object | |
41 globalAD = &AD; | |
42 | |
43 // ResourceMark mark; | |
44 ADLParser *ADL_Parse; // ADL Parser object to parse AD file | |
45 | |
46 // Check for proper arguments | |
47 if( argc == 1 ) usage(AD); // No arguments? Then print usage | |
48 | |
49 // Read command line arguments and file names | |
50 for( int i = 1; i < argc; i++ ) { // For all arguments | |
51 register char *s = argv[i]; // Get option/filename | |
52 | |
53 if( *s++ == '-' ) { // It's a flag? (not a filename) | |
54 if( !*s ) { // Stand-alone `-' means stdin | |
55 //********** INSERT CODE HERE ********** | |
56 } else while (*s != '\0') { // While have flags on option | |
57 switch (*s++) { // Handle flag | |
58 case 'd': // Debug flag | |
59 AD._dfa_debug += 1; // Set Debug Flag | |
60 break; | |
61 case 'g': // Debug ad location flag | |
62 AD._adlocation_debug += 1; // Set Debug ad location Flag | |
63 break; | |
64 case 'o': // No Output Flag | |
65 AD._no_output ^= 1; // Toggle no_output flag | |
66 break; | |
67 case 'q': // Quiet Mode Flag | |
68 AD._quiet_mode ^= 1; // Toggle quiet_mode flag | |
69 break; | |
70 case 'w': // Disable Warnings Flag | |
71 AD._disable_warnings ^= 1; // Toggle disable_warnings flag | |
72 break; | |
73 case 'T': // Option to make DFA as many subroutine calls. | |
74 AD._dfa_small += 1; // Set Mode Flag | |
75 break; | |
76 case 'c': { // Set C++ Output file name | |
77 AD._CPP_file._name = s; | |
78 const char *base = strip_ext(strdup(s)); | |
79 AD._CPP_CLONE_file._name = base_plus_suffix(base,"_clone.cpp"); | |
80 AD._CPP_EXPAND_file._name = base_plus_suffix(base,"_expand.cpp"); | |
81 AD._CPP_FORMAT_file._name = base_plus_suffix(base,"_format.cpp"); | |
82 AD._CPP_GEN_file._name = base_plus_suffix(base,"_gen.cpp"); | |
83 AD._CPP_MISC_file._name = base_plus_suffix(base,"_misc.cpp"); | |
84 AD._CPP_PEEPHOLE_file._name = base_plus_suffix(base,"_peephole.cpp"); | |
85 AD._CPP_PIPELINE_file._name = base_plus_suffix(base,"_pipeline.cpp"); | |
86 s += strlen(s); | |
87 break; | |
88 } | |
89 case 'h': // Set C++ Output file name | |
90 AD._HPP_file._name = s; s += strlen(s); | |
91 break; | |
92 case 'v': // Set C++ Output file name | |
93 AD._VM_file._name = s; s += strlen(s); | |
94 break; | |
95 case 'a': // Set C++ Output file name | |
96 AD._DFA_file._name = s; | |
97 AD._bug_file._name = s; | |
98 s += strlen(s); | |
99 break; | |
100 case '#': // Special internal debug flag | |
101 AD._adl_debug++; // Increment internal debug level | |
102 break; | |
103 case 's': // Output which instructions are cisc-spillable | |
104 AD._cisc_spill_debug = true; | |
105 break; | |
106 case 'D': // Flag Definition | |
107 { | |
108 char* flag = s; | |
109 s += strlen(s); | |
110 char* def = strchr(flag, '='); | |
111 if (def == NULL) def = (char*)"1"; | |
112 else *def++ = '\0'; | |
113 AD.set_preproc_def(flag, def); | |
114 } | |
115 break; | |
116 case 'U': // Flag Un-Definition | |
117 { | |
118 char* flag = s; | |
119 s += strlen(s); | |
120 AD.set_preproc_def(flag, NULL); | |
121 } | |
122 break; | |
123 default: // Unknown option | |
124 usage(AD); // So print usage and exit | |
125 } // End of switch on options... | |
126 } // End of while have options... | |
127 | |
128 } else { // Not an option; must be a filename | |
129 AD._ADL_file._name = argv[i]; // Set the input filename | |
130 | |
131 // // Files for storage, based on input file name | |
132 const char *base = strip_ext(strdup(argv[i])); | |
133 char *temp = base_plus_suffix("dfa_",base); | |
134 AD._DFA_file._name = base_plus_suffix(temp,".cpp"); | |
135 delete temp; | |
136 temp = base_plus_suffix("ad_",base); | |
137 AD._CPP_file._name = base_plus_suffix(temp,".cpp"); | |
138 AD._CPP_CLONE_file._name = base_plus_suffix(temp,"_clone.cpp"); | |
139 AD._CPP_EXPAND_file._name = base_plus_suffix(temp,"_expand.cpp"); | |
140 AD._CPP_FORMAT_file._name = base_plus_suffix(temp,"_format.cpp"); | |
141 AD._CPP_GEN_file._name = base_plus_suffix(temp,"_gen.cpp"); | |
142 AD._CPP_MISC_file._name = base_plus_suffix(temp,"_misc.cpp"); | |
143 AD._CPP_PEEPHOLE_file._name = base_plus_suffix(temp,"_peephole.cpp"); | |
144 AD._CPP_PIPELINE_file._name = base_plus_suffix(temp,"_pipeline.cpp"); | |
145 AD._HPP_file._name = base_plus_suffix(temp,".hpp"); | |
146 delete temp; | |
147 temp = base_plus_suffix("adGlobals_",base); | |
148 AD._VM_file._name = base_plus_suffix(temp,".hpp"); | |
149 delete temp; | |
150 temp = base_plus_suffix("bugs_",base); | |
151 AD._bug_file._name = base_plus_suffix(temp,".out"); | |
152 delete temp; | |
153 } // End of files vs options... | |
154 } // End of while have command line arguments | |
155 | |
156 // Open files used to store the matcher and its components | |
157 if (AD.open_files() == 0) return 1; // Open all input/output files | |
158 | |
159 // Build the File Buffer, Parse the input, & Generate Code | |
160 FileBuff ADL_Buf(&AD._ADL_file, AD); // Create a file buffer for input file | |
161 | |
162 // Get pointer to legal text at the beginning of AD file. | |
163 // It will be used in generated ad files. | |
164 char* legal_text; | |
165 int legal_sz = get_legal_text(ADL_Buf, &legal_text); | |
166 | |
167 ADL_Parse = new ADLParser(ADL_Buf, AD); // Create a parser to parse the buffer | |
168 ADL_Parse->parse(); // Parse buffer & build description lists | |
169 | |
170 if( AD._dfa_debug >= 1 ) { // For higher debug settings, print dump | |
171 AD.dump(); | |
172 } | |
173 | |
174 delete ADL_Parse; // Delete parser | |
175 | |
176 // Verify that the results of the parse are consistent | |
177 AD.verify(); | |
178 | |
179 // Prepare to generate the result files: | |
180 AD.generateMatchLists(); | |
181 AD.identify_unique_operands(); | |
182 AD.identify_cisc_spill_instructions(); | |
183 AD.identify_short_branches(); | |
184 // Make sure every file starts with a copyright: | |
185 AD.addSunCopyright(legal_text, legal_sz, AD._HPP_file._fp); // .hpp | |
186 AD.addSunCopyright(legal_text, legal_sz, AD._CPP_file._fp); // .cpp | |
187 AD.addSunCopyright(legal_text, legal_sz, AD._CPP_CLONE_file._fp); // .cpp | |
188 AD.addSunCopyright(legal_text, legal_sz, AD._CPP_EXPAND_file._fp); // .cpp | |
189 AD.addSunCopyright(legal_text, legal_sz, AD._CPP_FORMAT_file._fp); // .cpp | |
190 AD.addSunCopyright(legal_text, legal_sz, AD._CPP_GEN_file._fp); // .cpp | |
191 AD.addSunCopyright(legal_text, legal_sz, AD._CPP_MISC_file._fp); // .cpp | |
192 AD.addSunCopyright(legal_text, legal_sz, AD._CPP_PEEPHOLE_file._fp); // .cpp | |
193 AD.addSunCopyright(legal_text, legal_sz, AD._CPP_PIPELINE_file._fp); // .cpp | |
194 AD.addSunCopyright(legal_text, legal_sz, AD._VM_file._fp); // .hpp | |
195 AD.addSunCopyright(legal_text, legal_sz, AD._DFA_file._fp); // .cpp | |
196 // Make sure each .cpp file starts with include lines: | |
197 // files declaring and defining generators for Mach* Objects (hpp,cpp) | |
198 AD.machineDependentIncludes(AD._CPP_file); // .cpp | |
199 AD.machineDependentIncludes(AD._CPP_CLONE_file); // .cpp | |
200 AD.machineDependentIncludes(AD._CPP_EXPAND_file); // .cpp | |
201 AD.machineDependentIncludes(AD._CPP_FORMAT_file); // .cpp | |
202 AD.machineDependentIncludes(AD._CPP_GEN_file); // .cpp | |
203 AD.machineDependentIncludes(AD._CPP_MISC_file); // .cpp | |
204 AD.machineDependentIncludes(AD._CPP_PEEPHOLE_file); // .cpp | |
205 AD.machineDependentIncludes(AD._CPP_PIPELINE_file); // .cpp | |
206 // Generate the result files: | |
207 // enumerations, class definitions, object generators, and the DFA | |
208 // file containing enumeration of machine operands & instructions (hpp) | |
209 AD.addPreHeaderBlocks(AD._HPP_file._fp); // .hpp | |
210 AD.buildMachOperEnum(AD._HPP_file._fp); // .hpp | |
211 AD.buildMachOpcodesEnum(AD._HPP_file._fp); // .hpp | |
212 AD.buildMachRegisterNumbers(AD._VM_file._fp); // VM file | |
213 AD.buildMachRegisterEncodes(AD._HPP_file._fp); // .hpp file | |
214 AD.declareRegSizes(AD._HPP_file._fp); // .hpp | |
215 AD.build_pipeline_enums(AD._HPP_file._fp); // .hpp | |
216 // output definition of class "State" | |
217 AD.defineStateClass(AD._HPP_file._fp); // .hpp | |
218 // file declaring the Mach* classes derived from MachOper and MachNode | |
219 AD.declareClasses(AD._HPP_file._fp); | |
220 // declare and define maps: in the .hpp and .cpp files respectively | |
221 AD.addSourceBlocks(AD._CPP_file._fp); // .cpp | |
222 AD.addHeaderBlocks(AD._HPP_file._fp); // .hpp | |
223 AD.buildReduceMaps(AD._HPP_file._fp, AD._CPP_file._fp); | |
224 AD.buildMustCloneMap(AD._HPP_file._fp, AD._CPP_file._fp); | |
225 // build CISC_spilling oracle and MachNode::cisc_spill() methods | |
226 AD.build_cisc_spill_instructions(AD._HPP_file._fp, AD._CPP_file._fp); | |
227 // define methods for machine dependent State, MachOper, and MachNode classes | |
228 AD.defineClasses(AD._CPP_file._fp); | |
229 AD.buildMachOperGenerator(AD._CPP_GEN_file._fp);// .cpp | |
230 AD.buildMachNodeGenerator(AD._CPP_GEN_file._fp);// .cpp | |
231 // define methods for machine dependent instruction matching | |
232 AD.buildInstructMatchCheck(AD._CPP_file._fp); // .cpp | |
233 // define methods for machine dependent frame management | |
234 AD.buildFrameMethods(AD._CPP_file._fp); // .cpp | |
235 | |
236 // do this last: | |
237 AD.addPreprocessorChecks(AD._CPP_file._fp); // .cpp | |
238 AD.addPreprocessorChecks(AD._CPP_CLONE_file._fp); // .cpp | |
239 AD.addPreprocessorChecks(AD._CPP_EXPAND_file._fp); // .cpp | |
240 AD.addPreprocessorChecks(AD._CPP_FORMAT_file._fp); // .cpp | |
241 AD.addPreprocessorChecks(AD._CPP_GEN_file._fp); // .cpp | |
242 AD.addPreprocessorChecks(AD._CPP_MISC_file._fp); // .cpp | |
243 AD.addPreprocessorChecks(AD._CPP_PEEPHOLE_file._fp); // .cpp | |
244 AD.addPreprocessorChecks(AD._CPP_PIPELINE_file._fp); // .cpp | |
245 | |
246 // define the finite automata that selects lowest cost production | |
247 AD.machineDependentIncludes(AD._DFA_file); // .cpp | |
248 AD.buildDFA(AD._DFA_file._fp); | |
249 | |
250 AD.close_files(0); // Close all input/output files | |
251 | |
252 // Final printout and statistics | |
253 // cout << program; | |
254 | |
255 if( AD._dfa_debug & 2 ) { // For higher debug settings, print timing info | |
256 // Timer t_stop; | |
257 // Timer t_total = t_stop - t_start; // Total running time | |
258 // cerr << "\n---Architecture Description Totals---\n"; | |
259 // cerr << ", Total lines: " << TotalLines; | |
260 // float l = TotalLines; | |
261 // cerr << "\nTotal Compilation Time: " << t_total << "\n"; | |
262 // float ft = (float)t_total; | |
263 // if( ft > 0.0 ) fprintf(stderr,"Lines/sec: %#5.2f\n", l/ft); | |
264 } | |
265 return (AD._syntax_errs + AD._semantic_errs + AD._internal_errs); // Bye Bye!! | |
266 } | |
267 | |
268 //------------------------------usage------------------------------------------ | |
269 static void usage(ArchDesc& AD) | |
270 { | |
271 printf("Architecture Description Language Compiler\n\n"); | |
272 printf("Usage: adl [-doqw] [-Dflag[=def]] [-Uflag] [-cFILENAME] [-hFILENAME] [-aDFAFILE] ADLFILE\n"); | |
273 printf(" d produce DFA debugging info\n"); | |
274 printf(" o no output produced, syntax and semantic checking only\n"); | |
275 printf(" q quiet mode, supresses all non-essential messages\n"); | |
276 printf(" w suppress warning messages\n"); | |
277 printf(" c specify CPP file name (default: %s)\n", AD._CPP_file._name); | |
278 printf(" h specify HPP file name (default: %s)\n", AD._HPP_file._name); | |
279 printf(" a specify DFA output file name\n"); | |
280 printf("\n"); | |
281 } | |
282 | |
283 //------------------------------open_file------------------------------------ | |
284 int ArchDesc::open_file(bool required, ADLFILE & ADF, const char *action) | |
285 { | |
286 if (required && | |
287 (ADF._fp = fopen(ADF._name, action)) == NULL) { | |
288 printf("ERROR: Cannot open file for %s: %s\n", action, ADF._name); | |
289 close_files(1); | |
290 return 0; | |
291 } | |
292 return 1; | |
293 } | |
294 | |
295 //------------------------------open_files------------------------------------- | |
296 int ArchDesc::open_files(void) | |
297 { | |
298 if (_ADL_file._name == NULL) | |
299 { printf("ERROR: No ADL input file specified\n"); return 0; } | |
300 | |
301 if (!open_file(true , _ADL_file, "r")) { return 0; } | |
302 if (!open_file(!_no_output, _DFA_file, "w")) { return 0; } | |
303 if (!open_file(!_no_output, _HPP_file, "w")) { return 0; } | |
304 if (!open_file(!_no_output, _CPP_file, "w")) { return 0; } | |
305 if (!open_file(!_no_output, _CPP_CLONE_file, "w")) { return 0; } | |
306 if (!open_file(!_no_output, _CPP_EXPAND_file, "w")) { return 0; } | |
307 if (!open_file(!_no_output, _CPP_FORMAT_file, "w")) { return 0; } | |
308 if (!open_file(!_no_output, _CPP_GEN_file, "w")) { return 0; } | |
309 if (!open_file(!_no_output, _CPP_MISC_file, "w")) { return 0; } | |
310 if (!open_file(!_no_output, _CPP_PEEPHOLE_file, "w")) { return 0; } | |
311 if (!open_file(!_no_output, _CPP_PIPELINE_file, "w")) { return 0; } | |
312 if (!open_file(!_no_output, _VM_file , "w")) { return 0; } | |
313 if (!open_file(_dfa_debug != 0, _bug_file, "w")) { return 0; } | |
314 | |
315 return 1; | |
316 } | |
317 | |
318 //------------------------------close_file------------------------------------ | |
319 void ArchDesc::close_file(int delete_out, ADLFILE& ADF) | |
320 { | |
321 if (ADF._fp) { | |
322 fclose(ADF._fp); | |
323 if (delete_out) remove(ADF._name); | |
324 } | |
325 } | |
326 | |
327 //------------------------------close_files------------------------------------ | |
328 void ArchDesc::close_files(int delete_out) | |
329 { | |
330 if (_ADL_file._fp) fclose(_ADL_file._fp); | |
331 | |
332 close_file(delete_out, _CPP_file); | |
333 close_file(delete_out, _CPP_CLONE_file); | |
334 close_file(delete_out, _CPP_EXPAND_file); | |
335 close_file(delete_out, _CPP_FORMAT_file); | |
336 close_file(delete_out, _CPP_GEN_file); | |
337 close_file(delete_out, _CPP_MISC_file); | |
338 close_file(delete_out, _CPP_PEEPHOLE_file); | |
339 close_file(delete_out, _CPP_PIPELINE_file); | |
340 close_file(delete_out, _HPP_file); | |
341 close_file(delete_out, _DFA_file); | |
342 close_file(delete_out, _bug_file); | |
343 | |
344 if (!_quiet_mode) { | |
345 printf("\n"); | |
346 if (_no_output || delete_out) { | |
347 if (_ADL_file._name) printf("%s: ", _ADL_file._name); | |
348 printf("No output produced"); | |
349 } | |
350 else { | |
351 if (_ADL_file._name) printf("%s --> ", _ADL_file._name); | |
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352 printf("%s, %s, %s, %s, %s, %s, %s, %s, %s, %s", |
0 | 353 _CPP_file._name, |
354 _CPP_CLONE_file._name, | |
355 _CPP_EXPAND_file._name, | |
356 _CPP_FORMAT_file._name, | |
357 _CPP_GEN_file._name, | |
358 _CPP_MISC_file._name, | |
359 _CPP_PEEPHOLE_file._name, | |
360 _CPP_PIPELINE_file._name, | |
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361 _HPP_file._name, |
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362 _DFA_file._name); |
0 | 363 } |
364 printf("\n"); | |
365 } | |
366 } | |
367 | |
368 //------------------------------strip_ext-------------------------------------- | |
369 static char *strip_ext(char *fname) | |
370 { | |
371 char *ep; | |
372 | |
373 if (fname) { | |
374 ep = fname + strlen(fname) - 1; // start at last character and look for '.' | |
375 while (ep >= fname && *ep != '.') --ep; | |
376 if (*ep == '.') *ep = '\0'; // truncate string at '.' | |
377 } | |
378 return fname; | |
379 } | |
380 | |
381 //------------------------------strip_path_and_ext------------------------------ | |
382 static char *strip_path_and_ext(char *fname) | |
383 { | |
384 char *ep; | |
385 char *sp; | |
386 | |
387 if (fname) { | |
388 for (sp = fname; *sp; sp++) | |
389 if (*sp == '/') fname = sp+1; | |
390 ep = fname; // start at first character and look for '.' | |
391 while (ep <= (fname + strlen(fname) - 1) && *ep != '.') ep++; | |
392 if (*ep == '.') *ep = '\0'; // truncate string at '.' | |
393 } | |
394 return fname; | |
395 } | |
396 | |
397 //------------------------------base_plus_suffix------------------------------- | |
398 // New concatenated string | |
399 static char *base_plus_suffix(const char* base, const char *suffix) | |
400 { | |
401 int len = (int)strlen(base) + (int)strlen(suffix) + 1; | |
402 | |
403 char* fname = new char[len]; | |
404 sprintf(fname,"%s%s",base,suffix); | |
405 return fname; | |
406 } | |
407 | |
408 | |
409 //------------------------------prefix_plus_base_plus_suffix------------------- | |
410 // New concatenated string | |
411 static char *prefix_plus_base_plus_suffix(const char* prefix, const char* base, const char *suffix) | |
412 { | |
413 int len = (int)strlen(prefix) + (int)strlen(base) + (int)strlen(suffix) + 1; | |
414 | |
415 char* fname = new char[len]; | |
416 sprintf(fname,"%s%s%s",prefix,base,suffix); | |
417 return fname; | |
418 } | |
419 | |
420 //------------------------------get_legal_text--------------------------------- | |
421 // Get pointer to legal text at the beginning of AD file. | |
422 // This code assumes that a legal text starts at the beginning of .ad files, | |
423 // is commented by "//" at each line and ends with empty line. | |
424 // | |
425 int get_legal_text(FileBuff &fbuf, char **legal_text) | |
426 { | |
427 char* legal_start = fbuf.get_line(); | |
428 assert(legal_start[0] == '/' && legal_start[1] == '/', "Incorrect header of AD file"); | |
429 char* legal_end = fbuf.get_line(); | |
430 assert(strncmp(legal_end, "// Copyright", 12) == 0, "Incorrect header of AD file"); | |
431 while(legal_end[0] == '/' && legal_end[1] == '/') { | |
432 legal_end = fbuf.get_line(); | |
433 } | |
434 *legal_text = legal_start; | |
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435 return (int) (legal_end - legal_start); |
0 | 436 } |
437 | |
438 // VS2005 has its own definition, identical to this one. | |
439 #if !defined(_WIN32) || defined(_WIN64) || _MSC_VER < 1400 | |
440 void *operator new( size_t size, int, const char *, int ) { | |
441 return ::operator new( size ); | |
442 } | |
443 #endif |