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comparison src/share/vm/adlc/main.cpp @ 0:a61af66fc99e jdk7-b24

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date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
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);
352 printf("%s, %s, %s, %s, %s, %s, %s, %s, %s",
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,
361 _HPP_file._name, _DFA_file._name);
362 }
363 printf("\n");
364 }
365 }
366
367 //------------------------------strip_ext--------------------------------------
368 static char *strip_ext(char *fname)
369 {
370 char *ep;
371
372 if (fname) {
373 ep = fname + strlen(fname) - 1; // start at last character and look for '.'
374 while (ep >= fname && *ep != '.') --ep;
375 if (*ep == '.') *ep = '\0'; // truncate string at '.'
376 }
377 return fname;
378 }
379
380 //------------------------------strip_path_and_ext------------------------------
381 static char *strip_path_and_ext(char *fname)
382 {
383 char *ep;
384 char *sp;
385
386 if (fname) {
387 for (sp = fname; *sp; sp++)
388 if (*sp == '/') fname = sp+1;
389 ep = fname; // start at first character and look for '.'
390 while (ep <= (fname + strlen(fname) - 1) && *ep != '.') ep++;
391 if (*ep == '.') *ep = '\0'; // truncate string at '.'
392 }
393 return fname;
394 }
395
396 //------------------------------base_plus_suffix-------------------------------
397 // New concatenated string
398 static char *base_plus_suffix(const char* base, const char *suffix)
399 {
400 int len = (int)strlen(base) + (int)strlen(suffix) + 1;
401
402 char* fname = new char[len];
403 sprintf(fname,"%s%s",base,suffix);
404 return fname;
405 }
406
407
408 //------------------------------prefix_plus_base_plus_suffix-------------------
409 // New concatenated string
410 static char *prefix_plus_base_plus_suffix(const char* prefix, const char* base, const char *suffix)
411 {
412 int len = (int)strlen(prefix) + (int)strlen(base) + (int)strlen(suffix) + 1;
413
414 char* fname = new char[len];
415 sprintf(fname,"%s%s%s",prefix,base,suffix);
416 return fname;
417 }
418
419 //------------------------------get_legal_text---------------------------------
420 // Get pointer to legal text at the beginning of AD file.
421 // This code assumes that a legal text starts at the beginning of .ad files,
422 // is commented by "//" at each line and ends with empty line.
423 //
424 int get_legal_text(FileBuff &fbuf, char **legal_text)
425 {
426 char* legal_start = fbuf.get_line();
427 assert(legal_start[0] == '/' && legal_start[1] == '/', "Incorrect header of AD file");
428 char* legal_end = fbuf.get_line();
429 assert(strncmp(legal_end, "// Copyright", 12) == 0, "Incorrect header of AD file");
430 while(legal_end[0] == '/' && legal_end[1] == '/') {
431 legal_end = fbuf.get_line();
432 }
433 *legal_text = legal_start;
434 return (legal_end - legal_start);
435 }
436
437 // VS2005 has its own definition, identical to this one.
438 #if !defined(_WIN32) || defined(_WIN64) || _MSC_VER < 1400
439 void *operator new( size_t size, int, const char *, int ) {
440 return ::operator new( size );
441 }
442 #endif