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[smlnj] Annotation of /sml/trunk/NOTES/HISTORY
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Annotation of /sml/trunk/NOTES/HISTORY

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1 : dbm 570 This is the HISTORY file for the Yale SML/NJ CVS repository.
2 :    
3 :     An entry should be made for _every_ commit to the repository.
4 :     The entries in this file will be used when creating the README
5 :     for new versions, so keep that in mind when writing the
6 :     description.
7 :    
8 :     The form of an entry should be:
9 :    
10 : mblume 1615 Name:
11 : mblume 1480 Date: yyyy/mm/dd
12 :     Tag: <post-commit CVS tag>
13 :     Description:
14 :    
15 :     ----------------------------------------------------------------------
16 : allenleung 1890 Name: Allen Leung (leunga (at) reservoir (dot) com)
17 :     Date: 2006/02/22 15:07:00 EST
18 :     Tag: leunga-20060222-mdl-gen
19 :     Description:
20 :    
21 :     CM has changed. Updated the script for rebuilding the MLRISC generated
22 :     files.
23 :    
24 :     ----------------------------------------------------------------------
25 : mblume 1886 Name: Matthias Blume (http://www.tti-c.org/blume/)
26 :     Date: 2006/02/14 17:30:00 CST
27 :     Tag: blume-20060214-intel-mac
28 :     Description:
29 :    
30 :     Hooked code for Darwin-specific Intel ABI into main compiler.
31 :     (This is a temporary solution which relies on the fact that the
32 :     compiler itself does not use NLFFI. Eventually we need to divorce
33 :     intel mac from generic x86 unix code and make separate sets of binaries.)
34 :    
35 :     ----------------------------------------------------------------------
36 : jhr 1882 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
37 : jhr 1885 Date: 2006/02/13
38 :     Tag: jhr-20060213-intel-mac
39 :     Description:
40 :     Changed MLRISC x86 CCalls for partial support of MacOS X ABI.
41 :    
42 :     ----------------------------------------------------------------------
43 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
44 : jhr 1882 Date: 2006/02/06
45 :     Tag: jhr-20060206-intel-mac
46 :     Description:
47 :     Changes to support MacOS X on Intel hardware. The C-calls support in
48 :     MLRISC must also be updated to support the MacOS X ABI.
49 :    
50 :     ----------------------------------------------------------------------
51 : mblume 1863 Name: Matthias Blume (http://www.tti-c.org/blume/)
52 : mblume 1879 Date: 2005/12/16 00:15:00 CST
53 :     Tag: blume-20051216-cm
54 :     Description:
55 :    
56 :     Improved error reporting and handling in CM.
57 :    
58 :     ----------------------------------------------------------------------
59 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
60 : mblume 1878 Date: 2005/11/21 14:00:00 CST
61 :     Tag: blume-20051121-html-lib
62 :     Description:
63 :    
64 :     Enabling $/html-lib.cm in config/preloads did not work. This is fixed
65 :     now. (Since the anchor mapping for html-lib.cm is not yet in effect
66 :     at the time when config/preloads is processed, the library has to
67 :     be referred to by another name. In 110.57 this would be
68 :     $SMLNJ-LIB/HTML/html-lib.cm. I arranged for $smlnj/smlnj-lib/html-lib.cm
69 :     to be valid as well.)
70 :    
71 :     Thanks to Todd Wilson (Fresno) for alerting me to this issue.
72 :    
73 :     ----------------------------------------------------------------------
74 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
75 : mblume 1874 Date: 2005/11/19 13:45:00 CST
76 :     Tag: Release_110_57
77 :     Description:
78 :    
79 :     Moved release tag for 110.57.
80 :    
81 :     ----------------------------------------------------------------------
82 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
83 : mblume 1873 Date: 2005/11/19 23:35:00 CST
84 :     Tag: blume-20051119-fish
85 :     Description:
86 :    
87 :     Fixed a problem in config/install.sh where it tries to "fish" the
88 :     name of the CM metadata directory from the wrong place (because
89 :     the physical location of basis.cm has changed). Also, corrected the
90 :     path anchor for $/html-lib.cm. (Thanks to M. Fluet for pointing out
91 :     these problems.)
92 :    
93 :     ----------------------------------------------------------------------
94 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
95 : mblume 1867 Date: 2005/11/16 14:30:00 CST
96 : mblume 1874 Tag: blume-orig-110_57
97 : mblume 1867 Description:
98 :    
99 :     New working version (110.57). NEW BOOTFILES!
100 :    
101 : mblume 1874 UPDATE: The release tag has been moved to include a fix for a brown-paper-
102 :     bag glitch (see above).
103 :    
104 : mblume 1867 ----------------------------------------------------------------------
105 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
106 : mblume 1866 Date: 2005/11/16 10:25:00 CST
107 :     Tag: blume-22051116-btrace
108 :     Description:
109 :    
110 :     Fixed problem with bogus exception message when using back-trace
111 :     facility.
112 :    
113 :     ----------------------------------------------------------------------
114 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
115 : mblume 1865 Date: 2005/11/15 22:35:00 CST
116 :     Tag: blume-22051115-array2copy
117 :     Description:
118 :    
119 :     Added simple implementation of Array2.copy. (Warning: mostly untested.)
120 :    
121 :     ----------------------------------------------------------------------
122 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
123 : mblume 1864 Date: 2005/11/15 21:35:00 CST
124 :     Tag: blume-22051115-versiontool
125 :     Description:
126 :    
127 :     Reversed change to src/system/smlnj/internals/versiontool.cm. This
128 :     file gets loaded as a tool -- by the equivalent of CM.make during the
129 :     run of CMB.make. Thus, CMB's path configuration is meaningless for
130 :     it. Instead, it has the status of "user code", so it should use
131 :     $/basis.cm to refer to the Basis library. (At least that's true for
132 :     the purpose of bootstrapping the previous change. In the future it
133 :     might make sense to have versiontool.cm refer to
134 :     $smlnj/basis/basis.cm, i.e., the version of the Basis that the
135 :     compiler itself uses.)
136 :    
137 :     Also patched src/system/testml to have it activate those extra anchor
138 :     bindings in config/extrapathconfig.
139 :    
140 :     ----------------------------------------------------------------------
141 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
142 : mblume 1863 Date: 2005/11/15 16:35:00 CST
143 :     Tag: blume-22051115-libraries
144 :     Description:
145 :    
146 :     This change affects the way the following libraries are tied into
147 :     the system:
148 :    
149 :     $/basis.cm
150 :     $/smlnj-lib.cm
151 :     $/pp-lib.cm
152 :     $/controls-lib.cm
153 :     $/html-lib.cm
154 :     $/ml-yacc-lib.cm
155 :    
156 :     These libraries are now internally (as seen from the source code
157 :     of the implementation itself) known by the following names:
158 :    
159 :     $smlnj/basis/basis.cm
160 :     $smlnj/smlnj-lib/smlnj-lib.cm
161 :     $smlnj/smlnj-lib/pp-lib.cm
162 :     $smlnj/smlnj-lib/controls-lib.cm
163 :     $smlnj/smlnj-lib/html-lib.cm
164 :     $smlnj/ml-yacc/ml-yacc-lib.cm
165 :    
166 :     This makes it possible to work with code that requires different
167 :     versions of these libraries, and which refers to these libraries using
168 :     their "default" names (i.e., the first set of names above). In other
169 :     words, one can un-define or re-define those default names without
170 :     compromising the proper functioning of the compiler itself.
171 :    
172 :     A similar procedure had already been performed for several of the
173 :     MLRISC libraries that are linked into the compiler. I did some
174 :     cleanup on this code.
175 :    
176 :     A new file in the config directory (named extrapathconfig) is
177 :     responsible for setting up path anchors that the compiler itself does
178 :     not need, but that are typically required by user code.
179 :    
180 :     ----------------------------------------------------------------------
181 : mblume 1862 Name: Matthias Blume
182 :     Date: 2005/11/07 17:05:00 CST
183 :     Tag: blume-20051107-slice
184 :     Description:
185 :    
186 :     Fixed erroneous out-of-bounds test in the "update" function of
187 :     various *ArraySlice modules. (Thanks to Vesa A. Norrman for pointing
188 :     out the problem.)
189 :    
190 :     Pushed some Basis changes through ML-Lex, CML, and eXene.
191 :    
192 :     ----------------------------------------------------------------------
193 : jhr 1858 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
194 : jhr 1861 Date: 2005/11/07
195 :     Description:
196 :     Fixed a Basis incompatibility: The depreciated function Substring.all
197 :     was removed (use Substring.full instead).
198 :    
199 :     ----------------------------------------------------------------------
200 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
201 : jhr 1858 Date: 2005/11/05
202 :     Description:
203 :     Tweaked interval set API in SML/NJ library; see the CHANGES file for details.
204 :    
205 :     ----------------------------------------------------------------------
206 : mblume 1856 Name: Matthias Blume (http://www.tti-c.org/blume/)
207 :     Date: 2005/11/02 16:25:00 CST
208 :     Tag: blume-20051102-hex
209 :     Description:
210 :    
211 :     * Runtime system bootstrap code now accepts hex digits in BOOTLIST
212 :     in either upper case or lower case format.
213 :     * Pushed changes to names of Pack<N>{Big,Little} structures through
214 :     CML and eXene.
215 :    
216 :     ----------------------------------------------------------------------
217 : jhr 1852 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
218 : jhr 1855 Date: 2005/11/02
219 :     Description:
220 :     Fixed a Basis incompatibility: Pack<N>{Big,Little} structures should
221 :     be called PackWord<N>{Big,Little}.
222 :    
223 :     ----------------------------------------------------------------------
224 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
225 : jhr 1852 Date: 2005/10/28
226 :     Description:
227 :     Fixed a minor Basis incompatibility: hex digits should be upper case.
228 :    
229 :     ----------------------------------------------------------------------
230 : mblume 1846 Name: Matthias Blume (blume (at) tti - c (dot) org)
231 :     Date: 2005/10/25 16:00:00 CDT
232 :     Tag: Release_110_56
233 :     Description:
234 :    
235 :     New working version (110.56). NEW BOOTFILES!
236 :    
237 :     ----------------------------------------------------------------------
238 : jhr 1838 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
239 : jhr 1840 Date: 2005/10/25
240 :     Description:
241 :     Added interval sets to utility library (signatures INTERVAL_DOMAIN
242 :     and INTERVAL_SET, and functor IntervalSetFn).
243 :    
244 :     ----------------------------------------------------------------------
245 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
246 : jhr 1838 Date: 2005/10/14
247 :     Description:
248 :     Add Zhong Shao's fix for datatype equality functions.
249 :    
250 :     ----------------------------------------------------------------------
251 : allenleung 1836 Name: Allen Leung (leunga (at) reservoir (dot) com)
252 : allenleung 1837 Date: 2005/10/14 12:30:00 EST
253 :     Tag: leunga-20051014-x86-spill
254 :     Description:
255 :    
256 :     Bug fix a bug found by Carl Hauser.
257 :     There was a typo in the reload code for FCMP in x86SpillInstr.sml.
258 :    
259 :     ----------------------------------------------------------------------
260 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
261 : allenleung 1836 Date: 2005/10/14 11:15:00 EST
262 :     Tag: leunga-20051014-x86-asm
263 :     Description:
264 :    
265 :     Removed some debugging code in file x86Asm.sml.
266 :     The function emit_operand was printing out debugging output.
267 :    
268 :     ----------------------------------------------------------------------
269 : jhr 1813 Name: John Reppy
270 : jhr 1831 Date: 2005/07/27
271 :     Tag:
272 :     Description:
273 :    
274 : jhr 1832 Fixed ml-lex to recognize "\r" as representing carriage return.
275 :    
276 :     ----------------------------------------------------------------------
277 :     Name: John Reppy
278 :     Date: 2005/07/27
279 :     Tag:
280 :     Description:
281 :    
282 : jhr 1831 Fixed ml-yacc to work on files with non-native end-of-line
283 :     encodings (e.g., Windows text file on a Unix system).
284 :    
285 :     ----------------------------------------------------------------------
286 :     Name: John Reppy
287 : jhr 1824 Date: 2005/07/20
288 :     Tag:
289 :     Description:
290 :    
291 :     Added changes from Dominic Evans (oldmanuk (at) gmail (dot) com)
292 :     to support HPUX 11.
293 :    
294 :     ----------------------------------------------------------------------
295 :     Name: John Reppy
296 : jhr 1813 Date: 2005/07/06
297 :     Tag:
298 :     Description:
299 :    
300 :     Changes to the SML/NJ library. See smlnj-lib/CHANGES for details.
301 :    
302 :     ----------------------------------------------------------------------
303 : mblume 1808 Name: Matthias Blume (blume (at) tti - c (dot) org)
304 :     Date: 2005/07/06 00:45:00 CDT
305 :     Tag: blume-20050706-slice-copy
306 :     Description:
307 :    
308 :     Fixed reversed logic for deciding whether to "copy up" or "copy down"
309 :     in *-array-slice.sml.
310 :    
311 :     ----------------------------------------------------------------------
312 : allenleung 1806 Name: Allen Leung (leunga (at) reservoir (dot) com)
313 : allenleung 1807 Date: 2005/05/31 17:00:00 EST
314 :     Tag: leunga-20050531-cygwin-fault-2
315 :     Description:
316 :    
317 :     A typo in the cygwin code fixed.
318 :    
319 :     ----------------------------------------------------------------------
320 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
321 : allenleung 1806 Date: 2005/05/31 16:47:00 EST
322 :     Tag: leunga-20050531-cygwin-fault
323 :     Description:
324 :    
325 :     Updated Cygwin's fault/signal handling to match the Windows version.
326 :     Updated the export list.
327 :    
328 :     ----------------------------------------------------------------------
329 : mblume 1791 Name: Matthias Blume (blume (at) tti - c (dot) org)
330 : mblume 1795 Date: 2005/05/18 13:35:00 CDT
331 :     Tag: Release_110_54
332 :     Description:
333 :    
334 :     New working version (110.54). NEW BOOTFILES!
335 :    
336 :     ----------------------------------------------------------------------
337 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
338 : mblume 1794 Date: 2005/05/18 11:58:00 CDT
339 :     Tag: blume-20050518-installer
340 :     Description:
341 :    
342 :     Added support scripts for Mac OS X PackageMaker and modified
343 :     config/install.sh so that it supports re-dumping a heap image
344 :     after customization.
345 :    
346 :     ----------------------------------------------------------------------
347 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
348 : mblume 1793 Date: 2005/05/18 10:55:00 CDT
349 :     Tag: blume-20050518-realdiv-noovld
350 :     Description:
351 :    
352 :     Un-overloaded / to work around bug in overloading resolution code.
353 :    
354 :     ----------------------------------------------------------------------
355 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
356 : mblume 1792 Date: 2005/05/16 23:50:00 CDT
357 :     Tag: blume-20050516-redump-heap
358 :     Description:
359 :    
360 :     Added mechanism for re-creating a heap file for the interactive system
361 :     after configuration variables have been changed.
362 :    
363 :     CM.redump_heap : string -> unit
364 :    
365 :     This is much like SMLofNJ.exportML, but starting from the resulting
366 :     heap does not return to the caller of CM.redump_heap but
367 :     restarts the interactive system from scratch. The original call of
368 :     CM.redump_heap does not return but ends the interactive session.
369 :     Thus, CM.redump_heap is a lot like SMLofNJ.exportFn.
370 :    
371 :     Internally, redump_heap winds the dynamic execution context back to
372 :     the point where the original heap image was created and re-executes
373 :     the heap image generation code in the boot code.
374 :    
375 :     ----------------------------------------------------------------------
376 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
377 : mblume 1791 Date: 2005/05/09 21:55:00 CDT
378 :     Tag: blume-20050509-word64
379 :     Description:
380 :    
381 :     Added a hack to the existing hack known as Word64 to make fromString
382 :     behave correctly. I am still not sure whether Word64.scan will work
383 :     as specified with respect to the interaction of radix and prefix.
384 :    
385 :     ----------------------------------------------------------------------
386 : allenleung 1785 Name: Allen Leung (leunga (at) reservoir (dot) com)
387 :     Date: 2005/05/04 11:50:00 EST
388 :     Tag: leunga-20050504-checkgc
389 :     Description:
390 :    
391 :     Added a gc protocol checking phase. This phase is enabled with
392 :     the flag "check-gc". "debug-check-gc" turns on the verbose mode.
393 :    
394 :     ----------------------------------------------------------------------
395 : mblume 1741 Name: Matthias Blume (blume (at) tti - c (dot) org)
396 : mblume 1784 Date: 2005/05/04 10:45:00 CDT
397 :     Tag: blume-20050504-intinf
398 :     Description:
399 :    
400 :     Fixed a bug in the implementation of div and mod for IntInf.
401 :     Thanks to Neophytos Michael for reporting the problem.
402 :    
403 :     ----------------------------------------------------------------------
404 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
405 : mblume 1783 Date: 2005/05/04 10:35:00 CDT
406 :     Tag: blume-20050504-join
407 :     Description:
408 :    
409 :     Added a "join" combinator to the ParserComb module in smlnj-lib.cm.
410 :    
411 :     ----------------------------------------------------------------------
412 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
413 : mblume 1770 Date: 2005/02/28 23:40:00 CST
414 :     Tag: blume-20050228-mVar
415 :     Description:
416 :    
417 :     Fixed serious bug (brown paper bag variety) in new implementation of
418 :     structure Atom in CML. (I had accidentally used a mailbox instead of
419 :     an mvar, leaving the door open for races.)
420 :    
421 :     ----------------------------------------------------------------------
422 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
423 : mblume 1761 Date: 2005/02/25 15:00:00 CST
424 :     Tag: Release_110_53
425 :     Description:
426 :    
427 :     New working version (110.53). NEW BOOTFILES!
428 :    
429 :     ----------------------------------------------------------------------
430 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
431 : mblume 1760 Date: 2005/02/25 14:50:00 CST
432 :     Tag: blume-20050225-susp
433 :     Description:
434 :    
435 :     Brought back SMLofNJ.Susp. The underlying suspension type is the one
436 :     implemented in Core -- which means that it is the same as the one used
437 :     by the lazy extension.
438 :    
439 :     ----------------------------------------------------------------------
440 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
441 : mblume 1759 Date: 2005/02/24 16:50:00 CST
442 :     Tag: blume-20050224-cml-atom
443 :     Description:
444 :    
445 :     Simpler and at the same time more general implementation of structure
446 :     Atom in CML.
447 :    
448 :     ----------------------------------------------------------------------
449 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
450 : mblume 1758 Date: 2005/02/15 17:35:00 CST
451 :     Tag: blume-20050215-tools
452 :     Description:
453 :    
454 :     Created new "tools" directory under "src" and moved "TraceDebugProf"
455 :     there.
456 :    
457 :     ----------------------------------------------------------------------
458 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
459 : mblume 1755 Date: 2005/02/10 17:55:00 CST
460 :     Tag: blume-20050210-longlong
461 :     Description:
462 :    
463 :     Implemented "long long" arguments and results for NLFFI. (Only the
464 :     PPC/MacOS implementation is complete, the other backends still need to
465 :     be updated.)
466 :    
467 :     ----------------------------------------------------------------------
468 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
469 : mblume 1751 Date: 2005/01/24 17:40:00 CST
470 :     Tag: blume-20050124-mlyacc
471 :     Description:
472 :    
473 :     Minor cleanup in ML-Yacc rule printing mechanism. This should fix a
474 :     problem with certain "as" patterns which previously got rendered
475 :     using incorrect syntax.
476 :    
477 :     ----------------------------------------------------------------------
478 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
479 : mblume 1750 Date: 2005/01/18 12:00:00 CST
480 :     Tag: blume-20050118-profile
481 :     Description:
482 :    
483 :     Made time profiling code (interrupt handler) in runtime system aware
484 :     of new array representation.
485 :    
486 :     ----------------------------------------------------------------------
487 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
488 : mblume 1747 Date: 2005/01/14 18:00:00 CST
489 :     Tag: blume-20050114-heap2exec
490 :     Description:
491 :    
492 :     Implemented new (but still experimental) heap2exec facility. This is
493 :     tested under Mac OS X and should work under Linux (will test shortly).
494 :     It will probably also work on the Sparc (will test some time later).
495 :    
496 :     - removed old "HACKED_STANDALONE" hack from runtime
497 :    
498 :     To be able to test this, uncomment the request for "heap2asm" in
499 :     config/targets prior to installation. (Notice that this is different
500 :     from "heap2exec" mentioned below. Not a typo.)
501 :    
502 :     To perform an actual test, run the command
503 :    
504 :     $ bin/heap2exec heapfile execfile
505 :    
506 :     (You can put heap2exec on your shell's path.)
507 :    
508 :     For example, run
509 :    
510 :     $ bin/heap2exec bin/.heap/ml-yacc.ppc-darwin mly
511 :    
512 :     This will create a standalone executable called "mly" which you can
513 :     then invoke directly as a command.
514 :    
515 :     ----------------------------------------------------------------------
516 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
517 : mblume 1746 Date: 2005/01/07 11:44:00 CST
518 :     Tag: blume-20050107-mlstring
519 :     Description:
520 :    
521 :     fixed off-by-one error in ML_STRING macro (globals.c)
522 :    
523 :     ----------------------------------------------------------------------
524 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
525 : mblume 1744 Date: 2004/12/23 18:00:00 CST
526 :     Tag: blume-20041223-santa
527 :     Description:
528 :    
529 :     Made ml-build script "smarter" (but only very little).
530 :    
531 :     ----------------------------------------------------------------------
532 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
533 : mblume 1742 Date: 2004/12/21 15:05:00 CST
534 :     Tag: blume-20041221-longlong
535 :     Description:
536 :    
537 :     * Implemented access to signed and unsigned long long data in NLFFI.
538 :     (The parameter-passing part of the picture has not complete. But
539 :     data structure access seems to work.)
540 :    
541 :     * Fixed CM's incorrect assumption that the PPC is little-endian.
542 :     (On the Mac, it is big-endian. And that's currently our only
543 :     PPC platform.)
544 :    
545 :     ----------------------------------------------------------------------
546 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
547 : mblume 1741 Date: 2004/12/21 12:50:00 CST
548 :     Tag: blume-20041221-memory
549 :     Description:
550 :    
551 :     Some cleanup in the $c/memory.cm library: separated some concerns by
552 :     moving allocation code and memory access code each into their own
553 :     files.
554 :    
555 :     ----------------------------------------------------------------------
556 : allenleung 1740 Name: Allen Leung (leunga (at) reservoir (dot) com)
557 :     Date: 2004/12/17 16:12:00 EST
558 :     Tag: leunga-20041217-cygwin-smlnj-home
559 :     Description:
560 :    
561 :     The Unix I/O library of SML/NJ on cygwin does not understand
562 :     Windows style pathname, so problems arise when SMLNJ_HOME is set
563 :     to a Windows style pathname. _run-sml now converts SMLNJ_HOME
564 :     to a POSIX pathname on cygwin.
565 :    
566 :     ----------------------------------------------------------------------
567 : mblume 1737 Name: Matthias Blume (blume (at) tti - c (dot) org)
568 : mblume 1736 Date: 2004/12/16 13:35:00 CST
569 :     Tag: Release_110_52
570 :     Description:
571 :    
572 :     Last-minute changes incorporated into 110.52. Release tag moved.
573 :    
574 :     The changes:
575 :     - HashString.hashString' -> HashString.hashSubstring
576 :     - bug fix in UnivariateStats
577 :    
578 :     ----------------------------------------------------------------------
579 : mblume 1702 Name: Matthias Blume (blume (at) tti - c (dot) org)
580 : mblume 1733 Date: 2004/12/15 23:40:00 CST
581 :     Tag: blume-20041215-hashSubstring
582 :     Description:
583 :    
584 :     - HashString.hashString' -> HashString.hashSubstring
585 :     - corresponding changes in atom.sml
586 :     - "de-compressed" (aka. un-obfuscated) code for UnivariateStats and
587 :     added some comments
588 :    
589 :     ----------------------------------------------------------------------
590 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
591 : mblume 1728 Date: 2004/12/15 15:30:00 CST
592 : mblume 1736 Tag: (Release_110_52)
593 : mblume 1728 Description:
594 :    
595 :     New working version (110.52). NEW BOOTFILES!
596 :    
597 :     ----------------------------------------------------------------------
598 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
599 : mblume 1727 Date: 2004/12/15 12:45:00 CST
600 :     Tag: blume-20041215-spaces
601 :     Description:
602 :    
603 :     More on the space problem (this time for Win32).
604 :    
605 :     ----------------------------------------------------------------------
606 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
607 : mblume 1725 Date: 2004/12/14 17:30:00 CST
608 :     Tag: blume-20041214-spaces
609 :     Description:
610 :    
611 :     Hacked some of the scripts (in particular: the installer) to cope with
612 :     spaces in filenames a bit better. But beware: the current "solution"
613 :     is likely still full of bugs and inherently incomplete. (We need to
614 :     do away with those shell scripts for a comprehensive solution.)
615 :    
616 :     ----------------------------------------------------------------------
617 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
618 : mblume 1724 Date: 2004/12/13 14:45:00 CST
619 :     Tag: blume-20041213-ml-makedepend
620 :     Description:
621 :    
622 :     Fixed bug in code for ml-makedepend.
623 :    
624 :     ----------------------------------------------------------------------
625 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
626 : mblume 1720 Date: 2004/12/09 16:30:00 CST
627 :     Tag: blume-20041209-statistics
628 :     Description:
629 :    
630 :     Added two simple but potentially useful statistics modules to SML/NJ Library.
631 :     (See CHANGES file there.)
632 :    
633 :     ----------------------------------------------------------------------
634 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
635 : mblume 1718 Date: 2004/12/01 16:50:00 CST
636 :     Tag: blume-20041201-atom
637 :     Description:
638 :    
639 :     smlnj-lib:
640 :    
641 :     Added function HashString.hashString' for substrings.
642 :     Hand-inlined CharVector.foldl into HashString (for speed).
643 :     Modified implementation of structure Atom to avoid extracting
644 :     strings from substrings unless necessary.
645 :     (Also see CHANGES file for smlnj-lib.)
646 :    
647 :     ----------------------------------------------------------------------
648 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
649 : mblume 1717 Date: 2004/11/24 22:15:00 CST
650 :     Tag: blume-20041124-cml
651 :     Description:
652 :    
653 :     Made sure CML compiles when Position = Int64.
654 :    
655 :     ----------------------------------------------------------------------
656 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
657 : mblume 1715 Date: 2004/11/24 14:30:00 CST
658 :     Tag: blume-20041124-position
659 :     Description:
660 :    
661 :     The compiler can now be compiled in a mode that makes structure Position
662 :     equal to Int64. The default, however, is unchanged (Position = Int31)
663 :     for the time being.
664 :    
665 :     To enable 64-bit positions, use the following procedure:
666 :    
667 :     1. Start sml
668 :     2. Autoload $smlnj/cmb.cm (if not already autoloaded)
669 :     3. Type
670 :     #set (CMB.symval "USE_64_BIT_POSITIONS") (SOME 1);
671 :     4. Run CMB.make() as usual.
672 :    
673 :     This is barely tested. The only test so far was a little SML program
674 :     counting the number of characters in an 8-gigabyte file by
675 :     reading it character-by-character. That test was successful.
676 :    
677 :     In support of 64-bit positions, a number of new functions have been
678 :     added to the runtime system.
679 :    
680 :     ----------------------------------------------------------------------
681 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
682 : mblume 1716 Date: 2004/11/23 14:45:00 CST
683 :     Tag: blume-20041123-useFile
684 : mblume 1712 Description:
685 :    
686 :     Fixed a problem with unhelpful error messages related to problems with
687 :     .cm- or .sml files that appear as part of the sml command line.
688 :    
689 :     ----------------------------------------------------------------------
690 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
691 : mblume 1703 Date: 2004/11/18 15:40:00 CST
692 :     Tag: Release_110_51
693 :     Description:
694 :    
695 :     New working version (110.51). NEW BOOTFILES!
696 :    
697 :     ----------------------------------------------------------------------
698 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
699 : mblume 1702 Date: 2004/11/18 15:35:00 CST
700 :     Tag: <none>
701 :     Description:
702 :    
703 :     Enabled dlopen and friends for FreeBSD (as recommended by Johannes 5
704 :     Joemann).
705 :    
706 :     ----------------------------------------------------------------------
707 : allenleung 1701 Name: Allen Leung (leunga (at) reservoir (dot) com)
708 :     Date: 2004/11/17 16:05:21 EST 2004
709 :     Tag: leunga-20041117-mlrisc-live-kill
710 :     Description:
711 :    
712 :     Added support for MLTree constructs LIVE and KILL
713 :     to all the architectures.
714 :    
715 :     ----------------------------------------------------------------------
716 : mblume 1687 Name: Matthias Blume (blume (at) tti - c (dot) org)
717 : mblume 1689 Date: 2004/11/13 00:20:00 CST
718 :     Tag: blume-20041113-versiontool
719 :     Description:
720 :    
721 :     - Stripped down the versiontool: It now only handles the version number.
722 :     The date string is generated at bootstrap time (during makeml).
723 :    
724 :     - In a previous commit, fixed a minor issue with how polyequal is being
725 :     translated. In particular, the code now "looks through" abstractions.
726 :     This results in slightly fewer polyEqual warnings and hopefully slightly
727 :     more efficient code. Important examples for where this matters are
728 :     the new int64 and word64 types.
729 :    
730 :     ----------------------------------------------------------------------
731 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
732 : mblume 1687 Date: 2004/11/12 00:30:00 CST
733 :     Tag: blume-20041112-int64
734 :     Description:
735 :    
736 :     Structure Int64 fully hooked in. (The implementation is not very
737 :     efficient, though.)
738 :    
739 :     ----------------------------------------------------------------------
740 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
741 : mblume 1686 Date: 2004/11/11 17:30:00 CST
742 :     Tag: blume-20041111-more64
743 :     Description:
744 :    
745 :     All the pieces of Word64 are now there, with the exception of the
746 :     conversions from and to LargeWord. (Eventually these need to be identities,
747 :     but for the time being they don't even make sense because LargeWord is
748 :     32-bit wide.)
749 :    
750 :     Also started to add similar support for Int64, but major pieces of that
751 :     are still missing.
752 :    
753 :     ----------------------------------------------------------------------
754 : mblume 1668 Name: Matthias Blume (blume (at) tti - c (dot) org)
755 : mblume 1684 Date: 2004/11/11 00:15:00 CST
756 :     Tag: blume-20041111-word64
757 :     Description:
758 :    
759 :     Structure Word64 is now (almost) complete, word literals and patterns
760 :     seem to work. There are a few odd pieces missing. In particular,
761 :     I didn't do the {from,to}LargeWord parts because LargeWord is still Word32
762 :     at the moment.
763 :    
764 :     Making Word64 official would mean that LargeWord becomes Word64. But
765 :     this requires extreme care because most word-word conversions have to
766 :     go through LargeWord, so making a mistake means loss of efficiency or
767 :     worse. Eventually there will be a solution similar to (but actually
768 :     simpler than) what I did with IntInf.
769 :    
770 :     ----------------------------------------------------------------------
771 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
772 : mblume 1683 Date: 2004/11/10 18:12:00 CST
773 :     Tag: blume-20041110-64bit
774 :     Description:
775 :    
776 :     More 64-bit hacking (but still not even half-way there yet).
777 :     Also, some assorted improvements to the handling of 8-bit words.
778 :    
779 :     ----------------------------------------------------------------------
780 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
781 : mblume 1682 Date: 2004/11/09 17:50:00 CST
782 : mblume 1683 Tag: <none>
783 : mblume 1682 Description:
784 :    
785 :     Started adding some infrastructure for supporting 64-bit int- and
786 :     word-types. (Still in its very early stages.)
787 :    
788 :     ----------------------------------------------------------------------
789 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
790 : mblume 1672 Date: 2004/10/28 10:45:00 CDT
791 :     Tag: Release_110_50
792 :     Description:
793 :    
794 :     New working version (110.50). NEW BOOTFILES!
795 :    
796 :     =====================
797 :    
798 :     Also:
799 :    
800 :     - Changend config/srcarchiveurl from a file just
801 :     containing the URL string into a file containing
802 :     shell script code. The code has access to the $VERSION variable.
803 :     - Made corresponding changes to config/install.sh and config/unpack.
804 :     - Default contents of config/srcarchiveurl uses $VERSION and
805 :     normally does not have to be edited to reflect a version change.
806 :    
807 :     (As a result, a version change can be done by just editing
808 :     config/version, the rest is now automatic.)
809 :    
810 :     ----------------------------------------------------------------------
811 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
812 : mblume 1669 Date: 2004/10/27 17:50:00 CDT
813 :     Tag: blume-20041027-btrace-msg
814 :     Description:
815 :    
816 :     BackTrace.monitor now also reports the source of the exception that
817 :     triggered the trace.
818 :    
819 :     ----------------------------------------------------------------------
820 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
821 : mblume 1668 Date: 2004/10/27 17:20:00 CDT
822 :     Tag: blume-20041027-x86-c-calls
823 :     Description:
824 :    
825 :     This is the HISTORY entry for two earlier commits, both concerning
826 :     the x86 c-calls code in MLRISC:
827 :    
828 :     - added a missing LOAD in the code that deals with struct arguments
829 :     - made sure the caller does not add the wrong number of bytes to the
830 :     stack pointer after a call of a function returning a struct
831 :     (the callee already pops the implicit argument which points to
832 :     the space reserved for the result)
833 :    
834 :     ----------------------------------------------------------------------
835 : allenleung 1662 Name: Allen Leung (leunga (at) reservoir (dot) com)
836 :     Date: 2004/10/24 14:00:00 EST
837 :     Tag: leunga-20041024-x86-gas-fucomip
838 :     Description:
839 :    
840 :     John discovered a bug in the syntax of fucomip.
841 :     The opcodes FU?COMIP? have been changed to
842 :    
843 :     fu?comip? %st(i), %st
844 :    
845 :     ----------------------------------------------------------------------
846 : mblume 1622 Name: Matthias Blume (blume (at) tti - c (dot) org)
847 : mblume 1656 Date: 2004/10/20 15:06:00 CDT
848 :     Tag: blume-20041020-standalone-backtrace
849 :     Description:
850 :    
851 :     Added a mechanism for getting back-trace information from standalone
852 :     programs. Here is how it works:
853 :    
854 :     1. The part of the program from which you want to get backtrace
855 :     information (usually the whole program) should be wrapped with
856 :     BackTrace.monitor. This is a (unit->'a)->'a function, and your
857 :     main program could be modified from something like
858 :    
859 :     fun main (pgm, args) = ...
860 :    
861 :     to
862 :    
863 :     fun main (pgm, args) = BackTrace.monitor (fn () => ...)
864 :    
865 :     2. To be able to access BackTrace.monitor, you have to add
866 :     library $smlnj-tdp/plugins.cm to the .cm file that contains your
867 :     main function.
868 :    
869 :     3. Remove all compiled code (i.e., all the .cm/ subdirectories that
870 :     CM might have created in the past for your project).
871 :    
872 :     4. Build the system using this command line:
873 :    
874 :     ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
875 :     myprog.cm MyProg.main myprog
876 :    
877 :     instead of the usual
878 :    
879 :     ml-build myprog.cm MyProg.main myprog
880 :    
881 :     I changed a library name:
882 :    
883 :     $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
884 :    
885 :     New libraries:
886 :    
887 :     $smlnj-tdp/back-trace.cm
888 :     -- when loaded causes the back-trace plugin to be installed
889 :     $smlnj-tdp/coverage.cm
890 :     -- when loaded causes the coverage plugin to be installed
891 :    
892 :     ----------------------------------------------------------------------
893 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
894 : mblume 1655 Date: 2004/10/18 16:45:00 CDT
895 :     Tag: blume-20041018-groupowner
896 :     Description:
897 :    
898 :     Added an "obsolete" warning for the "group owner" syntax to CM's parser.
899 :    
900 :     Eliminated group owner specs from .cm files throughout the source tree.
901 :    
902 :     ----------------------------------------------------------------------
903 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
904 : mblume 1653 Date: 2004/10/15 15:45:00 CDT
905 :     Tag: blume-20041015-coverage
906 :     Description:
907 :    
908 :     * Test coverage tool added!
909 :     * Further reorganization of tracing-, debugging-, and profiling support:
910 :    
911 :     - moved original BTImp -- now called BackTrace -- into a separate
912 :     library called $/trace-debug-profile.cm
913 :     - eliminated all mentions of BTrace from SMLofNJ.Internals
914 :     - only the instrumentation mechanism is now left in the compiler proper
915 :     - BackTrace module is a plugin which is NOT plugged in by default
916 :     - Coverage module is another such plugin
917 :    
918 :     To get the benefits of any of these plugin modules, the code in
919 :     question must be compiled with tdp instrumentation turned on. This
920 :     can be done by setting SMLofNJ.Internals.TDP.mode to true.
921 :     (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
922 :    
923 :     Plugins are selected at link time. (Pre-compiled instrumented code
924 :     can be re-loaded with different plugins in effect.) When an
925 :     instrumented module is linked, whatever plugins are at that time
926 :     enabled will come into effect for that module.
927 :    
928 :     To enable the back-trace plugin, load library $/trace-debug-profile.cm
929 :     and invoke BackTrace.install() (e.g., from the interactive prompt).
930 :     To enable the coverage plugin, load the same library and invoke
931 :     Coverage.install().
932 :    
933 :     Back-traces are generated automatically on uncaught exceptions and
934 :     when the code in question explicitly invokes BackTrace.trigger().
935 :    
936 :     Coverage (and execution frequency-) information must be queried
937 :     explicitly by calling Coverage.not_covered and Coverage.hot_spots.
938 :    
939 :     ----------------------------------------------------------------------
940 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
941 : mblume 1652 Date: 2004/10/14 17:40:00 CDT
942 :     Tag: blume-20041014-tdp-core
943 :     Description:
944 :    
945 :     Snapshot of a significant overhaul of how the trace/debug/profile support
946 :     is hooked into the system (specifically: Core and SMLofNJ.Internals).
947 :    
948 :     ----------------------------------------------------------------------
949 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
950 : mblume 1650 Date: 2004/10/13 16:34:00 CDT
951 :     Tag: blume-20041013-tdp
952 :     Description:
953 :    
954 :     Some rationalization of names:
955 :    
956 :     structure BTrace -> structure TDPInstrument
957 :     etc.
958 :    
959 :     This is is preparation of using the original back-trace
960 :     instrumentation for other purposes. "TDP" stands for
961 :     Trace/Debug/Profile.
962 :    
963 :     The control flag controlling whether instrumentation is on or off is now
964 :     registered under a different name, so instead of running sml as
965 :    
966 :     sml -Cinstrument.btrace-mode=true
967 :    
968 :     one has to say
969 :    
970 :     sml -Ctdp.instrument=true
971 :    
972 :     ----------------------------------------------------------------------
973 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
974 : mblume 1645 Date: 2004/10/11 16:37:00 CDT
975 :     Tag: blume-20041011-regions
976 :     Description:
977 :    
978 :     Made some minor modifications to elabcore.sml to have source regions
979 :     be propagated more tightly -- resulting in better (i.e., smaller)
980 :     regions being reported in error- and debug messages.
981 :    
982 :     ----------------------------------------------------------------------
983 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
984 : mblume 1644 Date: 2004/10/08 22:50:00 CDT
985 :     Tag: blume-20041008-cmkw
986 :     Description:
987 :    
988 :     Fixed handling of keywords in .cm files: After seeing "is" the lexer
989 :     treats subsequent occurrences of "group", "library", "source", "is",
990 :     "*", and "-" as ordinary identifiers rather than keywords.
991 :    
992 :     Most seriously, this fixes a problem with CM's "shell" tool. The tool
993 :     is supposed to accept a tool argument called "source", but this did
994 :     not work because of the clash with the keyword.
995 :    
996 :     ----------------------------------------------------------------------
997 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
998 : mblume 1642 Date: 2004/10/07 16:00:00 CDT
999 :     Tag: blume-20041007-cleanup
1000 :     Description:
1001 :    
1002 :     Assorted cleanup work:
1003 :    
1004 :     - got rid of intstrmap in favor of using the library's
1005 :     hash table implementation
1006 :     - threw out most of the pathnames stuff, as it was not used anyway
1007 :     - simplified tokentable implementation
1008 :     - fixed some minor spelling errors
1009 :    
1010 :     ----------------------------------------------------------------------
1011 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1012 : mblume 1641 Date: 2004/10/06 15:15:15 CDT
1013 :     Tag: blume-20041006-handler
1014 :     Description:
1015 :    
1016 :     Cleaned up the absyn to reflect the invariant that HANDLE always
1017 :     carries a FNexp as part of the type definition. This eliminates some
1018 :     superfluous sanity checks at runtime down the road.
1019 :    
1020 :     Some minor cleanup of the btrace code.
1021 :    
1022 :     ----------------------------------------------------------------------
1023 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1024 : mblume 1640 Date: 2004/10/01 10:20:30 CDT
1025 :     Tag: blume-20041001-slave
1026 :     Description:
1027 :    
1028 :     Added hack to make slave mode work in the presence of the version
1029 :     tool. (Still, since the master does two passes over the code for
1030 :     CMB.make, the release number gets bumped twice when slaves are
1031 :     attached. I don't know if this is worth fixing...)
1032 :    
1033 :     ----------------------------------------------------------------------
1034 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1035 : mblume 1639 Date: 2004/09/30 10:55:00 CDT
1036 :     Tag: blume-20040930-version
1037 :     Description:
1038 :    
1039 :     * Moved the "version" magic into its own little library under
1040 : mblume 1672 src/system/smlnj/internal. This avoids expensive reconstruction of
1041 :     a stable src/compiler/core.cm.
1042 : mblume 1639
1043 : mblume 1672 * At the same time, structure CompilerVersion is now known as
1044 :     structure SMLNJVersion.
1045 : mblume 1639
1046 :     * Arranged for the version tool to NOT kick in when rebuilding the system
1047 :     (makeml -rebuild, fixpt). Otherwise one would never reach a fixpoint.
1048 :     Also, loading the versiontool does not work when rebuilding the system
1049 :     because CM is not properly initialized at that time.
1050 :    
1051 :     ----------------------------------------------------------------------
1052 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1053 : mblume 1638 Date: 2004/09/29 14:00:00 CDT
1054 :     Tag: blume-20040929-autoversion
1055 :     Description:
1056 :    
1057 :     Implemented some CM magic to have
1058 :     file src/compiler/TopLevel/main/version.sml
1059 :     generated automagically.
1060 :     The version is taken from two files: config/version and config/release.
1061 :     The first is expected to contain a two-part version number such as 110.49.
1062 :     The second should contain a single number, but it may be missing.
1063 :    
1064 :     If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
1065 :     time the version tool is loaded (which is the first time you say CMB.make),
1066 :     then the tool will increment the value stored in config/release every
1067 :     time CMB.make is invoked.
1068 :    
1069 :     The binfile format is now insensitive to anything beyond the first
1070 :     two components of a version number, so bumping the release does not render
1071 :     binfiles incompatible. Auto-bumping can be used to keep track of versions
1072 :     during development without invalidating existing binfiles.
1073 :    
1074 :     In any case, every CMB.make updates the date information in version.sml.
1075 :     (This is the date that is printed in the banner.)
1076 :    
1077 :     ----------------------------------------------------------------------
1078 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1079 : mblume 1634 Date: 2004/09/28 10:53:00 CDT
1080 :     Tag: blume-20040928-controls
1081 :     Description:
1082 :    
1083 :     Some cleanup of the controls code.
1084 :    
1085 :     ----------------------------------------------------------------------
1086 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1087 : mblume 1633 Date: 2004/09/27 22:08:00 CDT
1088 :     Tag: blume-20040927-controls
1089 :     Description:
1090 :    
1091 :     Added two pieces of functionality to the Controls interface:
1092 :    
1093 :     1. val save'restore: 'a control -> unit -> unit
1094 :    
1095 :     grabs the current value of the control in stage 1 and restores it
1096 :     in stage 2.
1097 :    
1098 :     2. val set' : 'a control * 'a -> unit -> unit
1099 :    
1100 :     stores the given value into the control in stage 2 (i.e., delayed)
1101 :     but does all error checking in stage 1.
1102 :     (This is for string controls that need to do parse their argument --
1103 :     something that might fail. In some cases, notably in CM, one
1104 :     already knows the intended argument but wants to delay the actual
1105 :     assignment until a time when error recovery would be more difficult.)
1106 :    
1107 :     Changed the handling of controls in tool arguments to classes "sml" and
1108 :     "lazysml":
1109 :     - use Controls.save'restore as a more robust way of restoring the
1110 :     old value (in particular: without having to re-parse the string)
1111 :     - use controls to handle the "overload" keyword in the init group
1112 :     (I believe this change actually fixes a long-standing obscure bug.)
1113 :    
1114 :     ----------------------------------------------------------------------
1115 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1116 : mblume 1632 Date: 2004/09/27 17:00:00 CDT
1117 :     Tag: blume-20040927-lazysml
1118 :     Description:
1119 :    
1120 :     Added a new tool class called "lazysml" to CM's tool chest. The only
1121 :     difference to "sml" is that compilation is done with Control.lazysml
1122 :     set to true. A source of class "lazysml" is automatically recognized
1123 :     by a file name suffix of ".lml".
1124 :    
1125 :     In addition to the above feature, the original class "sml" now also
1126 :     supports a tool argument "lazy" which has the same effect. As a
1127 :     result, the following three lines are equivalent:
1128 :    
1129 :     foo.sml : lazysml
1130 :     foo.sml : sml (lazy)
1131 :     foo.sml (lazy)
1132 :    
1133 :     The setting goes into effect both during parsing and during
1134 :     compilation. The original setting is restored right after parsing and
1135 :     after compilation, respectively.
1136 :    
1137 :     In addition to all the above, there is also a general mechanism to set
1138 :     ANY of the "controls" that are available at the command line via
1139 :     "-C..." on a per-sml-file basis. The same rules that apply for "lazy"
1140 :     apply as well. (In fact, "lazy" is implemented as a special case of
1141 :     the general mechanism.)
1142 :    
1143 :     The .cm file syntax uses a new keyword tool argument called "with".
1144 :     There are several ways of indicating the desired settings:
1145 :    
1146 :     foo.sml (with:parser.quotations=true)
1147 :     foo.sml (with:(name:parser.quotations value:true))
1148 :     foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
1149 :     foo.sml (with:(name1=value1 name2=value2 ...))
1150 :     foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
1151 :    
1152 :     etc.
1153 :    
1154 :     Another possible abbreviation is to leave out the =v or value:v part
1155 :     if the name refers to a boolean control (in which case the value is
1156 :     taken to be true). Thus, one could get lazy sml also by saying:
1157 :    
1158 :     foo.sml (with:parser.lazy-keyword=true)
1159 :     foo.sml (with:parser.lazy-keyword)
1160 :     foo.sml (with:(name:parser.lazy-keyword value:true))
1161 :     foo.sml (with:(name:parser.lazy-keyword))
1162 :    
1163 :     ----------------------------------------------------------------------
1164 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1165 : mblume 1631 Date: 2004/09/24 16:22:00 CDT
1166 :     Tag: blume-20040924-ppc-long-branch
1167 :     Description:
1168 :    
1169 :     Turned message about "emiting long form of branch" off by default.
1170 :     Added a control flag to turn it back on when desired.
1171 :    
1172 :     ----------------------------------------------------------------------
1173 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1174 : mblume 1630 Date: 2004/09/24 16:05:00 CDT
1175 :     Tag: blume-20040924-rounding
1176 :     Description:
1177 :    
1178 :     Applied patch for setting rounding modes under Mac OS X. Thanks to
1179 :     Melissa O'Neill for providing the code!
1180 :    
1181 :     ----------------------------------------------------------------------
1182 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1183 : mblume 1629 Date: 2004/09/23 17:30:00 CDT
1184 :     Tag: blume-20040923-envvars
1185 :     Description:
1186 :    
1187 :     1. Changed definition of type ControlRegistry.registry_tree to
1188 :     include control_info (i.e., the name of the controlling environment
1189 :     variable).
1190 :    
1191 :     2. Added command-line flags -e and -E to print the names of environment
1192 :     variables that can be used to control internal settings.
1193 :     (This uses the new API mentioned in 1.)
1194 :    
1195 :     ----------------------------------------------------------------------
1196 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1197 : mblume 1622 Date: 2004/09/13 16:50:00 CDT
1198 :     Tag: Release_110_49
1199 :     Description:
1200 :    
1201 :     New working version (110.49). NEW BOOTFILES!
1202 :    
1203 :     ----------------------------------------------------------------------
1204 : mblume 1621 Name: Matthias Blume
1205 :     Date: 2004/09/13 16:20:00 CDT
1206 :     Tag: blume-20040913-config-mlrisc
1207 :     Description:
1208 :    
1209 :     Put target "mlrisc" back into the default list.
1210 :     (There is no harm in having it, and some users have expressed their
1211 :     wish to have "mlrisc" included by default.)
1212 :    
1213 :     ----------------------------------------------------------------------
1214 : jhr 1620 Name: John Reppy
1215 :     Date: 2004/09/13
1216 :     Tag: jhr-20040913-signals
1217 :     Description:
1218 :    
1219 :     Fixed the signal masking code to properly nest mask/unmask operations
1220 :     on a per-signal basis.
1221 :    
1222 :     ----------------------------------------------------------------------
1223 : mblume 1619 Name: Matthias Blume (blume (at) tti - c (dot) org)
1224 :     Date: 2004/09/08 13:20:00 CDT
1225 :     Tag: blume-20040908-heap-magic
1226 :     Description:
1227 :    
1228 :     Bumped the heap macig number to 0x09082004 to account for the changed
1229 :     layout of the ML frame under MacOS X.
1230 :    
1231 :     ----------------------------------------------------------------------
1232 : allenleung 1618 Name: Allen Leung (leunga (at) reservoir (dot) com)
1233 :     Date: 2004/09/03 11:26:00 EST
1234 :     Tag: leunga-20040903-cygwin-install
1235 :     Description:
1236 :    
1237 :     Added a patch to _arch-n-opsys to enable the Cygwin runtime.
1238 :     The Cygwin runtime is turned on by setting the environment
1239 :     variable SMLNJ_CYGWIN_RUNTIME to 1.
1240 :    
1241 :     ----------------------------------------------------------------------
1242 : mblume 1615 Name: Matthias Blume (blume (at) tti - c (dot) org)
1243 : mblume 1617 Date: 2004/08/31 17:15:00 CDT
1244 :     Tag: blume-20040831-core
1245 :     Description:
1246 :    
1247 :     Added some exports to src/compiler/core.cm upon request by J. Joemann.
1248 :    
1249 :     ----------------------------------------------------------------------
1250 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1251 : mblume 1616 Date: 2004/08/30 17:55:00 CDT
1252 :     Tag: blume-20040830-installer
1253 :     Description:
1254 :    
1255 :     Upon request by Johannes Joemann:
1256 :    
1257 :     - improved ML code of installer to fall back to coping when renaming
1258 :     fails (i.e., when source and target are on different file systems);
1259 :     the code compiles but has yet to be tested in anger
1260 :     - removed mlrisc from list of default targets (config/targets)
1261 :    
1262 :     ----------------------------------------------------------------------
1263 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1264 : mblume 1615 Date: 2004/08/27 17:20:00 CDT
1265 :     Tag: blume-20040827-ptreql
1266 :     Description:
1267 :    
1268 :     Added ptreql primop to structure InlineT (upon request from Larry
1269 :     Paulson).
1270 :    
1271 :     ----------------------------------------------------------------------
1272 : allenleung 1613 Name: Allen Leung (leunga (at) reservoir (dot) com)
1273 : allenleung 1614 Date: 2004/08/15 21:21:00 EST
1274 :     Tag: leunga-110_48-udgraph
1275 :     Description:
1276 :    
1277 :     Another bug fix from Carl Hauser:
1278 :    
1279 :     diff /net/niflab/smlnj48/src/MLRISC/graphs/udgraph.sml udgraph.sml
1280 :     > 48c48
1281 :     > < | rmv((e as (k,_))::es,L) = rmv(es,if k = i then es else
1282 :     > e::L)
1283 :     > ---
1284 :     > > | rmv((e as (k,_))::es,L) = rmv(es,if k = i then L else e::L)
1285 :     > Without this, any deletion of an edge in an undirected graph does severe
1286 :     > violence to the graph.
1287 :    
1288 :     ----------------------------------------------------------------------
1289 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
1290 : allenleung 1613 Date: 2004/08/10 23:35:00 EST
1291 :     Tag: leunga-110_48-ppc
1292 :     Description:
1293 :    
1294 :     The IBM/MacOS syntax switch on PPC was incorrectly swapped.
1295 :    
1296 :     ----------------------------------------------------------------------
1297 : mblume 1602 Name: Matthias Blume (blume (at) tti - c (dot) org)
1298 : mblume 1615 Date: 2004/08/10 12:00:00 CDT
1299 : mblume 1602 Tag: Release_110_48
1300 :     Description:
1301 :    
1302 :     New working version (110.48). NEW BOOTFILES!
1303 :    
1304 :     ----------------------------------------------------------------------
1305 : allenleung 1599 Name: Allen Leung (leunga (at) reservoir (dot) com)
1306 :     Date: 2004/08/09 12:21:00 EST
1307 :     Tag: leunga-110_47-dijsktra
1308 :     Description:
1309 :    
1310 :     Bug fix from Carl Hauser:
1311 :    
1312 :     single_source_shortest_paths in dijkstra.sml was observed to get wrong
1313 :     answers (by comparing to single_source_shortest_paths in bellman-ford.sml).
1314 :    
1315 :     The problem is that following the expression A.update(dist,s,Num.zero)
1316 :     it is necessary to update the priority queue using Q.decreaseWeight(Q,s).
1317 :    
1318 :     ----------------------------------------------------------------------
1319 : mblume 1595 Name: Matthias Blume (blume (at) tti - c (dot) org)
1320 :     Date: 2004/08/06 18:10:00 CDT
1321 :     Tag: blume-20040806-cmdline
1322 :     Description:
1323 :    
1324 :     Fiddled with handling of command-line options:
1325 :    
1326 :     * sml now quits after processing the command line
1327 :     if -H, -S, -h<n>, or -s<n> appears as the last
1328 :     command-line argument
1329 :     * a new option -q terminates the session when encountered on
1330 :     the command line; subsequent arguments will be ignored
1331 :     * bug fixes: short (erroneous) arguments are no longer ignored
1332 :     completely
1333 :    
1334 :     ----------------------------------------------------------------------
1335 : allenleung 1593 Name: Allen Leung (leunga (at) reservoir (dot) com)
1336 :     Date: 2004/08/04 18:17:00 EST
1337 :     Tag: leunga-110_47-ppc-ibm-asm
1338 :     Description:
1339 :    
1340 :     - Added minimal IBM assembly syntax support for PowerPC.
1341 :    
1342 :     - Cygwin: manually changed the file cygwin.def. Some exported symbols have
1343 :     been altered in the runtime. We need an automatic way to keep the file
1344 :     in sync.
1345 :    
1346 :     ----------------------------------------------------------------------
1347 : mblume 1548 Name: Matthias Blume (blume (at) tti - c (dot) org)
1348 : mblume 1581 Date: 2004/08/04 14:00:00 CDT
1349 :     Tag: Release_110_47
1350 :     Description:
1351 :    
1352 :     New working version (110.47). NEW BOOTFILES!
1353 :    
1354 :     ----------------------------------------------------------------------
1355 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1356 : mblume 1580 Date: 2004/08/03 14:25:00 CDT
1357 :     Tag: blume-20040803-callingconv
1358 :     Description:
1359 :    
1360 :     Added low-level support for choosing C calling conventions by
1361 :     twiddling the type of rawccall. (See
1362 :     src/compiler/Semant/types/cproto.sml for details.)
1363 :    
1364 :     ----------------------------------------------------------------------
1365 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1366 : mblume 1579 Date: 2004/08/02 15:55:00 CDT
1367 :     Tag: blume-20040802-backout
1368 :     Description:
1369 :    
1370 :     Backed out of change to win32-filesys.c. The earlier patch to
1371 :     get_file_time caused CM to produce files with the wrong time stamp.
1372 :    
1373 :     ----------------------------------------------------------------------
1374 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1375 : mblume 1573 Date: 2004/08/02 14:45:00 CDT
1376 :     Tag: blume-20040802-nlffi-win32
1377 :     Description:
1378 :    
1379 :     Added NLFFI support for Win32, adapted from a patch provided by David
1380 :     Hansel. This is currently completely untested. Also, the issue
1381 :     concerning stdcall vs. ccall is still unresolved.
1382 :    
1383 :     ----------------------------------------------------------------------
1384 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1385 : mblume 1572 Date: 2004/07/30 17:55:00 CDT
1386 :     Tag: blume-20040730-various
1387 :     Description:
1388 :    
1389 :     Gearing up towards 110.47...
1390 :    
1391 :     - various minor bugfixes to ml-nlffigen
1392 :     - a beginning of a manual for nlffi
1393 :    
1394 :     - eliminated 'export name=value' in config/install.sh as this does
1395 :     not work with certain versions of /bin/sh
1396 :     (Thanks to David King at Motorola for catching this.)
1397 :    
1398 :     - several bugfixes provided or suggested by David Hansel at Reactive Systems:
1399 :     - added a test for tm==NULL to gmtime.c and localtime.c
1400 :     - applied patch for incorrect GetFileTime under win32
1401 :     - toSeconds -> toMilliseconds in Win32/win32-process.sml
1402 :    
1403 :     ----------------------------------------------------------------------
1404 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1405 : mblume 1557 Date: 2004/07/21 18:20:00 CDT
1406 :     Tag: blume-20040721-nlffigen
1407 :     Description:
1408 :    
1409 :     - Fixed minor issue in ml-nlffigen: Now generate structure T_foo
1410 :     for a typedef to an incomplete type, but leave out the "typ" member.
1411 :     (This is just for consistency.)
1412 :     - Started to produce what is supposed to become better (i.e., comprehensive)
1413 :     documentation of what ml-nlffigen does and produces.
1414 :    
1415 :     ----------------------------------------------------------------------
1416 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1417 : mblume 1548 Date: 2004/07/14 16:25:00 CDT
1418 :     Tag: blume-20040714-union
1419 :     Description:
1420 :    
1421 :     Added C_UNION to c-calls/c-types.sml and updated the machinery
1422 :     (ml-nlffigen, cproto.sml) that conveys C function interface
1423 :     information to the code generator.
1424 :    
1425 :     However, the actual architecture-specific implementation of function
1426 :     arguments and results that are C unions is still not implemented.
1427 :    
1428 :     ----------------------------------------------------------------------
1429 : allenleung 1539 Name: Allen Leung (leunga (at) reservoir (dot) com)
1430 : allenleung 1546 Date: 2004/07/14 14:38:00 EST
1431 :     Tag: leunga-110_46_1-ppc-lwzu
1432 :     Description:
1433 :    
1434 :     Added these instructions to the PowerPC architecture:
1435 :     LBZU(X), LHZU(X), LWZU(X),
1436 :     STWU(X), STFDU, STFSU
1437 :    
1438 :     etc...
1439 :    
1440 :     Note: I haven't added their instruction encoding into the description.
1441 :    
1442 :     ----------------------------------------------------------------------
1443 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
1444 : allenleung 1539 Date: 2004/07/13 15:04:00 EST
1445 :     Tag: leunga-110_46_1-ppc-lwarx
1446 :     Description:
1447 :    
1448 :     Added the two instructions LWARX and STWCX to the PowerPC
1449 :     instruction set.
1450 :    
1451 :     A (untested) rewrite of loop-structure.sml. The old version
1452 :     is completely broken.
1453 :    
1454 :     ----------------------------------------------------------------------
1455 : mblume 1479 Name: Matthias Blume (blume (at) tti - c (dot) org)
1456 : mblume 1537 Date: 2004/07/13 13:50:00 CDT
1457 :     Tag: blume-20040713-nlffi
1458 :     Description:
1459 :    
1460 :     - use paramAlloc to report c-calls with too many arguments
1461 :     (for PPC version where parameter area is pre-allocated)
1462 :     - added ccall_maxargspace to machspec (to implement the above)
1463 :     - made "make" commend in CM's "make" tool configurable
1464 :     - added option (default: on) for passing the name of the SML/NJ's "bin"
1465 :     directory to "make"; the call looks like this:
1466 :    
1467 :     make <options> SMLNJ_BINDIR=<dir> <target>
1468 :    
1469 :     This can be used by the Makefile to, e.g., pick the "right" version
1470 :     of ml-nlffigen.
1471 :     - minor code tweaks
1472 :    
1473 :     ----------------------------------------------------------------------
1474 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1475 : mblume 1532 Date: 2004/07/12 22:50:00 CDT
1476 :     Tag: blume-110_46_1-macosx-nlffi
1477 :     Description:
1478 :    
1479 :     NLFFI under Mac OS X now working (sort of). This is largely untested,
1480 :     though.
1481 :    
1482 :     Note: 1. You have to make a new, clean build of the runtime system.
1483 :     2. There are new BOOTFILES, you have to use them!
1484 :     (Doing the bootstrap process yourself would be *very* painful!
1485 :     If you absolutely have to do it, build the system under
1486 :     a different architecture and then cross-compile.)
1487 :    
1488 :     Version bumped to 110.46.1 to account for runtime data format changes.
1489 :    
1490 :     ----------------------------------------------------------------------
1491 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1492 : mblume 1515 Date: 2004/06/18 14:30:00 CDT
1493 :     Tag: blume-20040618-unix
1494 :     Description:
1495 :    
1496 :     Changed the implementation of structure Unix so that the same stream
1497 :     is returned every time one of the {text,bin}{In,Out}streamOf functions
1498 :     is invoked on the same proc. This is not what the spec currently
1499 :     says -- although IMO it arguably should. (See discussion below.)
1500 :    
1501 :     ----------------------------------------------------------------------
1502 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1503 : mblume 1507 Date: 2004/06/17 18:15:00 CDT
1504 :     Tag: Release_110_46
1505 :     Description:
1506 :    
1507 :     New working version (110.46). NEW BOOTFILES!
1508 :    
1509 :     ----------------------------------------------------------------------
1510 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1511 : mblume 1506 Date: 2004/06/17 17:20:00 CDT
1512 :     Tag: blume-20040617-timer-unix
1513 :     Description:
1514 :    
1515 :     Changed the interface of structures Timer and Unix to match the most
1516 :     recent Basis spec.
1517 :    
1518 :     In the case of Unix there still seems to be an open/weird issue:
1519 :    
1520 :     The {text,bin}{In,Out}streamOf functions are supposed to create
1521 :     fresh streams whenever they are called -- as opposed to have them
1522 :     return the same stream every time. This design is supposed to
1523 :     prevent space leaks caused by proc values hanging on to streams.
1524 :    
1525 :     The reap function, on the other hand, is supposed to close the
1526 :     streams. This cannot be done without having a handle on the
1527 :     stream in proc after all...
1528 :    
1529 :     I took the liberty to implement the following stopgap solution:
1530 :    
1531 :     The proc value hangs on to the most recently created stream(s).
1532 :     Reap closes those. If either or both of the two streams hadn't
1533 :     been created at all yet, then reap will close the corresponding
1534 :     file descriptors directly.
1535 :    
1536 :     PS: I don't understand the original space leak argument anymore. If
1537 :     a proc hangs on to the imperative stream, then I/O operations on those
1538 :     will advance the state of the cached stream and avoid the space leak.
1539 :    
1540 :     ----------------------------------------------------------------------
1541 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1542 : mblume 1500 Date: 2004/05/28 16:45:00 CDT
1543 :     Tag: blume-20040528-basis
1544 :     Description:
1545 :    
1546 :     Added signature PACK_REAL and exported functor PrimIO.
1547 :    
1548 :     ----------------------------------------------------------------------
1549 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1550 : mblume 1498 Date: 2004/05/25 16:00:00 CDT
1551 :     Tag: blume-20040525-group-owner
1552 :     Description:
1553 :    
1554 :     CM now ignores (but still accepts) the "owner" information in group
1555 :     descriptions. The owner of a group is its next enclosing
1556 :     library. Each group must have a unique owner. (There is a virtual
1557 : mblume 1505 "toplevel" library that owns groups which are not nested within a real
1558 : mblume 1498 library.) Previously, each group had to explicitly declare its owner,
1559 :     and CM would check that such a declaration is correct. The new scheme
1560 :     is to have CM check that for each group there is precisely one owning
1561 :     library.
1562 :    
1563 :     The advantage of the new scheme is that the programmer no longer needs
1564 :     to maintain the somewhat annoying owner information. The downside is
1565 :     that CM cannot enforce the ownership rule across multiple runs of
1566 :     CM.make. Fortunately, enclosing the same group in two different
1567 :     libraries A and B which are not part of the same program does not
1568 :     cause real problems.
1569 :    
1570 :     ----------------------------------------------------------------------
1571 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1572 : mblume 1496 Date: 2004/05/20 16:00:00 CDT
1573 :     Tag: blume-20040520-win32
1574 :     Description:
1575 :    
1576 :     Made the win32 version work again. (Strangely, a misplaced comma had
1577 :     slipped into win32-process.c which prevented the runtime from being
1578 :     compiled correctly.)
1579 :    
1580 :     Also, included a minor addition to ml-build.bat analogous to what was
1581 :     done in blume-20040519-ml-build.
1582 :    
1583 :     ----------------------------------------------------------------------
1584 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1585 : mblume 1494 Date: 2004/05/19 22:10:00 CDT
1586 :     Tag: blume-20040519-ml-build
1587 :     Description:
1588 :    
1589 :     Arranged for ml-build to clean up after itself a little bit better.
1590 :     The script generates a temporary SML source file and compiles it using
1591 :     CM, so CM generates metadata (GUID, SKEL, objectfile) for it. It now
1592 :     gets rid of those at the end, so they don't accumulate under .cm.
1593 :    
1594 :     This required a minor change to install.sh because the name of the
1595 :     metadata directory (default: .cm) is actually configurable at
1596 :     installation time.
1597 :    
1598 :     ----------------------------------------------------------------------
1599 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1600 : mblume 1491 Date: 2004/05/18 15:50:00 CDT
1601 :     Tag: blume-20040518-mkreader
1602 :     Description:
1603 :    
1604 :     Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
1605 :     implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
1606 :    
1607 :     ----------------------------------------------------------------------
1608 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1609 : mblume 1489 Date: 2004/05/11 14:35:00 CDT
1610 :     Tag: blume-20040511-win32sock
1611 :     Description:
1612 :    
1613 :     Added previously missing support for many socket-related functions
1614 :     under win32. Thanks to David Hansel <hansel@reactive-systems.com>
1615 :     for the voluminous patch!
1616 :    
1617 :     (I have not tested this patch under win32 yet.)
1618 :    
1619 : mblume 1490 Here is David's e-mail:
1620 :    
1621 :     Hi,
1622 :    
1623 :     Attached to this email you find a diff against sml/nj 110.45
1624 :     that will enable socket support under Windows.
1625 :    
1626 :     To apply the patch (using unix or cygwin)
1627 :     1) gunzip runtime.diff.gz
1628 :     2) "cd" into "src/runtime" in the source tree of a fresh
1629 :     110.45 installation.
1630 :     3) patch -p 1 < [your/path/to]runtime.diff
1631 :    
1632 :     The code compiles fine but has NOT yet been extensively tested.
1633 :     I only ran a few tests for basic socket client functionality
1634 :     (which worked fine). Especially the functions that use ioctl
1635 :     are not tested at all and might not work (see below).
1636 :    
1637 :     I implemented this since we want to move to a newer version of sml/nj
1638 :     but need socket support in order to use it. This is the first time I
1639 :     even had a look at the sml/nj source, so please review my changes
1640 :     before making this part of the distribution! Here are a few issues
1641 :     that I think might be better for someone to solve who is more
1642 :     familiar with the sml/nj source (and socket programming):
1643 :    
1644 :     - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
1645 :     exception since I could not figure out what the windows equivalent
1646 :     of these functions is
1647 :    
1648 :     - In sockets-osdep.h there are a some #include statements that are
1649 :     only used in a few files that include sockets-osdep.h
1650 :    
1651 :     - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
1652 :     does not process its return value since I don't know how to
1653 :     report an error upwards.
1654 :    
1655 :     - It would probably be good to have a call to WSACleanup() when
1656 :     the library is unloaded (if there is such a possibility).
1657 :     Otherwise I think Windows will take care of this automatically
1658 :     when the process finishes.
1659 :    
1660 :     - I used ioctlsocket() as a replacement for ioctl() but I have
1661 :     no idea if that is actually the proper replacement on Windows.
1662 :    
1663 :     - All these issues are marked in the code by "FIXME" comments.
1664 :    
1665 :     We use sml/nj extensively in our products and are quite happy
1666 :     with it. I hope this contribution will help you.
1667 :    
1668 :     Keep up the good work!
1669 :    
1670 :     David
1671 :    
1672 : mblume 1489 ----------------------------------------------------------------------
1673 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1674 : mblume 1488 Date: 2004/05/11 14:20:00 CDT
1675 :     Tag: blume-20040511-installml
1676 :     Description:
1677 :    
1678 :     Fixed two bugs in installml script. (Thanks to Vesa A. Norrman for
1679 :     the patch.)
1680 :    
1681 :     ----------------------------------------------------------------------
1682 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1683 : mblume 1487 Date: 2004/05/11 14:05:00 CDT
1684 :     Tag: blume-20040511-nlffi-netbsd
1685 :     Description:
1686 :    
1687 :     Added support for nlffi under netbsd. (Thanks to Vesa A. Norrman for
1688 :     the patch.)
1689 :    
1690 :     ----------------------------------------------------------------------
1691 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1692 : mblume 1486 Date: 2004/05/11 12:05:00 CDT
1693 :     Tag: blume-20040511-exports
1694 :     Description:
1695 :    
1696 :     As per request by Adam Chlipala <adam@hcoop.net>, extended various
1697 :     export lists in compiler-related .cm-files.
1698 :    
1699 :     ----------------------------------------------------------------------
1700 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1701 : mblume 1485 Date: 2004/05/11 11:35:00 CDT
1702 :     Tag: blume-20040511-allsource
1703 :     Description:
1704 :    
1705 :     The installer now honors the "src-smlnj" target again, although its meaning
1706 :     has changed from "all sources required for the compiler" to "all sources
1707 :     the installer knows about". In other words, if you enable "src-smlnj"
1708 :     in the "targets" file, then the installer will pull in sources for
1709 :     everything. (Notice that this refers to source code only. Compiled
1710 :     code is still only installed for modules that were requested explicitly
1711 :     or which are required for other modules that were requested explicitly.)
1712 :    
1713 :     ----------------------------------------------------------------------
1714 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1715 : mblume 1482 Date: 2004/04/23 17:40:00 CDT
1716 :     Tag: blume-20040423-ieee-scan
1717 :     Description:
1718 :    
1719 :     Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
1720 :     in the exponent calculation we get INF or ZERO (depending on the mantissa
1721 :     and the sign of the exponent).
1722 :    
1723 :     ----------------------------------------------------------------------
1724 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1725 : mblume 1480 Date: 2004/04/23 10:40:00 CDT
1726 :     Tag: blume-20040423-ml-build
1727 :     Description:
1728 :    
1729 :     The ml-build script now terminates with a non-0 status when something
1730 :     goes wrong.
1731 :    
1732 :     ----------------------------------------------------------------------
1733 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1734 : mblume 1479 Date: 2004/04/22 16:35:00 CDT
1735 :     Tag: blume-20040422-Option
1736 :     Description:
1737 :    
1738 :     Made exception Option to be the same as exception Option.Option
1739 :     (as it should be).
1740 :    
1741 :     ----------------------------------------------------------------------
1742 : allenleung 1468 Name: Allen Leung (leunga (at) reservoir (dot) com)
1743 :     Date: 2004/03/19 14:40:00 EST
1744 :     Tag: leunga-20040319-cygwin-nlffi
1745 :     Description:
1746 :    
1747 :     Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
1748 :     of SML/NJ. The problem is that
1749 :    
1750 :     lib = dlopen(NULL, ...)
1751 :     f = dlsym(lib, "malloc");
1752 :    
1753 :     does not work on Windows unless we explicitly export symbols
1754 :     such as 'malloc' during linking. We fixed this by explicitly
1755 :     exporting the required symbols with the magic gcc incantation:
1756 :    
1757 :     -Wl,--export-all cygwin.def
1758 :    
1759 :     where cygwin.def is a file containing all the symbols that
1760 :     we wish to export.
1761 :    
1762 :     I suspect this is a Windows problem and we'll have to
1763 :     do the same (somehow with windows compilers) when
1764 :     we build the native win32 version with the system
1765 :     calls LoadLibrary/GetProcAddress.
1766 :    
1767 :     ----------------------------------------------------------------------
1768 : mblume 1384 Name: Matthias Blume (blume (at) tti - c (dot) org)
1769 : mblume 1465 Date: 2004/03/04 16:35:00 CST
1770 :     Tag: blume-20040304-intinf-fmt
1771 :     Description:
1772 :    
1773 :     Fixed problem with IntInf.fmt (sign would show up on the right instead
1774 :     of on the left for BIN, OCT, and HEX).
1775 :    
1776 :     ----------------------------------------------------------------------
1777 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1778 : mblume 1464 Date: 2004/03/04 11:25:00 CST
1779 :     Tag: blume-20040304-symlinks
1780 :     Description:
1781 :    
1782 :     Fixed problem with installer script (unix only) where bin/ml-yacc and
1783 :     friends pointed (via symlinks) to absolute locations instead of just
1784 :     .run-sml. This was reported by Vesa A Norrman.
1785 :    
1786 :     ----------------------------------------------------------------------
1787 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1788 : mblume 1455 Date: 2004/02/13 14:50:00 CST
1789 :     Tag: Release_110_45
1790 :     Description:
1791 :    
1792 :     New working version (110.45). New bootfiles.
1793 :    
1794 :     ----------------------------------------------------------------------
1795 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1796 : mblume 1448 Date: 2004/01/26 15:15:15 CST
1797 :     Tag: blume-20040126-toplevel
1798 :     Description:
1799 :    
1800 :     Improved handling of exceptions at the interactive toplevel.
1801 :    
1802 :     ----------------------------------------------------------------------
1803 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1804 :     Date: 2004/01/26 11:25:00
1805 : mblume 1446 Tag: blume-20040126-app
1806 :     Description:
1807 :    
1808 :     Type of top-level "app" corrected.
1809 : mblume 1447 Added code for setting vp_limitPtrMask to Win32-specific runtime.
1810 : mblume 1446
1811 :     ----------------------------------------------------------------------
1812 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1813 : mblume 1427 Date: 2003/11/18 17:10 CST
1814 :     Tag: blume-20031118-basis-fiddle
1815 :     Description:
1816 :    
1817 :     - changed Timer interface to what might become the spec
1818 :     - POSIX_FLAGS -> BIT_FLAGS according to spec
1819 :     - some other minor discrepancies wrt. spec eliminated
1820 :    
1821 :     ----------------------------------------------------------------------
1822 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1823 : mblume 1414 Date: 2003/11/06 12:00:00 CST
1824 :     Tag: Release_110_44
1825 :     Description:
1826 :    
1827 :     New working version (110.44). New bootfiles.
1828 :    
1829 :     ----------------------------------------------------------------------
1830 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1831 : mblume 1411 Date: 2003/11/04 11:50:00 CST
1832 :     Tag: blume-20031104-move-libraries
1833 :     Description:
1834 :    
1835 :     Eliminated the "dont_move_libraries" directive in config/targets.
1836 :     (The mechanism was broken and could not be fixed easily. Moreover,
1837 :     there does not seem to be any reason not to move all libraries into
1838 :     lib during installation. I originally implemented this directive as a
1839 :     backward-compatibility feature when I first introduced the new CM.
1840 :     Now that things have been stable for a long time and going back to the
1841 :     old CM is not an option, there is no reason to keep it around.)
1842 :    
1843 :     ----------------------------------------------------------------------
1844 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1845 : mblume 1409 Date: 2003/11/03 16:00:00 CST
1846 :     Tag: blume-20031103-installdir
1847 :     Description:
1848 :    
1849 :     Made installer honor INSTALLDIR variable again. (Thanks to Chris
1850 :     Richards for pointing out the problem and providing the solution.)
1851 :    
1852 :     ----------------------------------------------------------------------
1853 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1854 : mblume 1400 Date: 2003/10/01 17:05:00 CDT
1855 :     Tag: blume-20031001-lal-mlrisc
1856 :     Description:
1857 :    
1858 :     MLRISC bug fix from Lal.
1859 :    
1860 :     ----------------------------------------------------------------------
1861 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1862 : mblume 1399 Date: 2003/09/30 16:10:00 CDT
1863 :     Tag: blume-20030930-primio-bat
1864 : mblume 1398 Description:
1865 :    
1866 :     1. Added openVector, nullRd, and nullWr to PRIM_IO.
1867 :     2. Improved .bat files (for Win32 port) to make things work under Win95.
1868 :     (thanks to Aaron S. Hawley for this one)
1869 :    
1870 :     ----------------------------------------------------------------------
1871 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1872 : mblume 1395 Date: 2003/09/26 16:05:00 CDT
1873 :     Tag: blume-20030926-wrappriv
1874 :     Description:
1875 :    
1876 :     Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
1877 :    
1878 :     ----------------------------------------------------------------------
1879 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1880 : mblume 1394 Date: 2003/09/26 15:00:00 CDT
1881 :     Tag: blume-20030926-110_43_3
1882 :     Description:
1883 :    
1884 :     - additional cleanup
1885 :     - version number bump, NEW BOOTFILES
1886 :    
1887 :     ----------------------------------------------------------------------
1888 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1889 : mblume 1393 Date: 2003/09/26 12:00:00 CDT
1890 :     Tag: blume-20030926-ppautoload
1891 :     Description:
1892 :    
1893 :     I modified the read-eval-print loop so that the autoloader gets
1894 :     invoked whenever the prettyprinter tries to look up a symbol that
1895 :     is not currently defined in the toplevel environment but which
1896 :     appears in CM's autoload registry. As a result, we see far fewer of
1897 :     those ?.Foo.Bar.xxx names in the prettyprinter's output.
1898 :    
1899 :     In addition to this I tried to clean up some pieces of the Basis
1900 :     implementation (e.g., Socket, Word8Array) in order to prevent other
1901 :     instances of these ?.Foo.Bar.xxx names from being printed.
1902 :    
1903 :     The mechanism that picks names for types still needs some work, though.
1904 :     (Right now it seems that if there is a type A.t which is defined to
1905 : mblume 1394 be B.u, but B is unavailable at toplevel, then A.t gets printed as
1906 :     "?.B.u" although the perhaps more sensible solution would be to use
1907 : mblume 1393 "A.t" in this case. In other words, the prettyprinter should follow
1908 :     a chain of DEFtycs not farther than there are corresponding toplevel
1909 :     names in the current environment.)
1910 :    
1911 :     ----------------------------------------------------------------------
1912 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1913 : mblume 1391 Date: 2003/09/24 16:31:00 CDT
1914 :     Tag: blume-20030924-installer
1915 :     Description:
1916 :    
1917 :     Another installer tweak: All the ML code for the installer is now
1918 :     compiled during CMB.make and put into a little library called
1919 :     $smlnj/installer.cm. The installation then simply invokes
1920 :    
1921 :     sml -m $smlnj/installer.cm
1922 :    
1923 :     and everything happens automagically.
1924 :    
1925 :     Win32: ML code senses value of environment variable SMLNJ_HOME.
1926 :     Unix: ML code senses values of environment variables ROOT, CONFIGDIR,
1927 :     and BINDIR.
1928 :    
1929 :     The new scheme guarantees that the ML code responsible for the installation
1930 :     is in sync with the APIs of the main system. Also, the installer is
1931 :     somewhat faster because the installer script is precompiled.
1932 :    
1933 :     ----------------------------------------------------------------------
1934 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1935 : mblume 1390 Date: 2003/09/24 15:35:00 CDT
1936 :     Tag: blume-20030924-synsock
1937 :     Description:
1938 :    
1939 :     Added a signature SYNCHRONOUS_SOCKET to basis.cm. This is like SOCKET
1940 :     but excludes all non-blocking operations. Defined SOCKET (in Basis)
1941 :     and CML_SOCKET in terms of SYNCHRONOUS_SOCKET. Removed superfluous
1942 :     implementations of non-blocking operations from CML's Socket
1943 :     structure.
1944 :    
1945 :     ----------------------------------------------------------------------
1946 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1947 : mblume 1389 Date: 2003/09/24 15:10:05 CDT
1948 :     Tag: blume-20030924-sockets
1949 :     Description:
1950 :    
1951 :     1. Fixed SOCKET API and implementation to match Basis spec.
1952 :     This required changing the internal representation of sockets to one
1953 :     that remembers (for each socket file descriptor) whether it is currently
1954 :     blocking or non-blocking. This state is maintained lazily (i.e., a system
1955 :     call is made only if the state actually needs to change).
1956 :    
1957 :     2. OS-specific details of sockets were moved into separate files, thus
1958 :     making it possible to unify the bulk of the socket implementations
1959 :     between Unix and Win32.
1960 :    
1961 :     3. CML's socket API changed accordingly.
1962 :     (Note that we need to remove non-blocking functions from this API
1963 :     since they are redundant in the case of CML!)
1964 :    
1965 :     4. CML's socket implementation now makes use of non-blocking functions
1966 :     provided by Basis, thus removing all OS-dependent code from this part
1967 :     of CML.
1968 :    
1969 :     5. Changed Real64.precision from 52 to 53. Minor cleanup in Real64 code.
1970 :    
1971 :     ----------------------------------------------------------------------
1972 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1973 : mblume 1387 Date: 2003/09/22 12:10:00 CDT
1974 : mblume 1388 Tag: blume-20030922-110_43_2
1975 : mblume 1387 Description:
1976 :    
1977 :     Made a new interim version and bootfiles for developer's bootstrapping
1978 :     convenience.
1979 :    
1980 :     110.43.2 -- NEW BOOTFILES
1981 :    
1982 :     ----------------------------------------------------------------------
1983 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1984 : mblume 1385 Date: 2003/09/19 15:55:00 CDT
1985 :     Tag: blume-20030919-cmdir
1986 :     Description:
1987 :    
1988 :     1. new-install.sh -> install.sh
1989 :     2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
1990 :     3. tweaked installer so that another name instead of .cm can be chosen
1991 :     at install time (by setting the CM_DIR_ARC environment variable
1992 :     during installation); once installation is complete, the name is
1993 :     fixed
1994 :    
1995 :     ----------------------------------------------------------------------
1996 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1997 : mblume 1384 Date: 2003/09/18 16:00:00 CDT
1998 :     Tag: blume-20030918-110_43_1
1999 :     Description:
2000 :    
2001 :     Made a new interim version and bootfiles for developer's bootstrapping
2002 :     convenience.
2003 :    
2004 :     110.43.1 -- NEW BOOTFILES
2005 :    
2006 :     ----------------------------------------------------------------------
2007 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2008 : mblume 1383 Date: 2003/09/18 15:20:00 CDT
2009 :     Tag: blume-20030918-misc
2010 :     Description:
2011 :    
2012 :     1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
2013 :     this seems to be controversial at the moment) and used those in
2014 :     Posix.ProcEnv.times.
2015 :    
2016 :     2. Added Time.{from,to}Nanoseconds to Time.
2017 :    
2018 :     3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
2019 :     For example, fromLargeInt never needs to look at more than 3 "big
2020 :     digits" to get its 53 bits of precision.
2021 :    
2022 :     ----------------------------------------------------------------------
2023 : mblume 1384 Name: Matthias Blume (blume (at) tti - c (dot) org)
2024 : mblume 1381 Date: 2003/09/17 16:30:00 CDT
2025 :     Tag: blume-20030917-real32-slices
2026 :     Description:
2027 :    
2028 :     Added an entry to the primitive environment
2029 :     (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
2030 :     added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
2031 :    
2032 :     Removed some of the "magic" constants in real64.sml and replaced them
2033 :     with code that generates these values from their corresponding
2034 :     integer counterparts.
2035 :    
2036 :     Made all(?) the slice-related changes to the Basis and made everything
2037 :     compile again...
2038 :    
2039 :     ----------------------------------------------------------------------
2040 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2041 : mblume 1375 Date: 2003/09/15 17:45:00 CDT
2042 :     Tag: blume-20030915-rbase
2043 :     Description:
2044 :    
2045 :     Fixed bug in Real.fromLargeInt.
2046 :    
2047 :     ----------------------------------------------------------------------
2048 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2049 : mblume 1369 Date: 2003/09/13 18:11:00 CDT
2050 :     Tag: blume-20030913-libinstall
2051 :     Description:
2052 :    
2053 :     Minor bugfix in config/libinstall (set anchor with path to
2054 :     standalone tool after installing it, otherwise libraries that
2055 :     need ml-lex or ml-yacc won't compile the first time the installer
2056 :     runs).
2057 :    
2058 :     ----------------------------------------------------------------------
2059 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2060 : mblume 1368 Date: 2003/09/12 11:45:00 CDT
2061 :     Tag: blume-20030912-various
2062 :     Description:
2063 :    
2064 :     - fixed bug in Real.toLargeInt
2065 :     - fixed bug in Posix.ProcEnv.times
2066 :     - changed inputLine functions to return an option
2067 :     - minor installer improvements / bugfixes
2068 :     - changed default @SMLalloc parameter for x86/celeron to 64k
2069 :    
2070 :     ----------------------------------------------------------------------
2071 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2072 : mblume 1356 Date: 2003/09/09 22:00:00 CDT
2073 :     Tag: Release_110_43
2074 :     Description:
2075 :    
2076 :     New working release 110.43. New bootfiles.
2077 :    
2078 :     ----------------------------------------------------------------------
2079 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2080 : mblume 1354 Date: 2003/09/09 19:20:00 CDT
2081 :     Tag: blume-20030909-installer
2082 :     Description:
2083 :    
2084 :     Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
2085 :     Modified config/install.bat to take advantage of it. Also modified
2086 :     config/install.sh (and called it config/new-install.sh) to take advantage
2087 :     of it on Unix systems. (The SML code is (supposed to be) platform-
2088 :     independent.)
2089 :    
2090 :     The installer can now install everything under Win32
2091 :     as well as under *nix as long as it compiles.
2092 :    
2093 :     Other changes:
2094 :    
2095 :     - made CML compile again under Win32
2096 :     - made eXene compile under Win32 (by providing a fake structure UnixSock
2097 :     and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
2098 :     - fixed a bug in nowhere: it assumed that type OS.Process.status is the
2099 :     same as type int; under Win32 it isn't
2100 :     - fixed some slice-related problems in the win32-specific parts of CML
2101 :     - added a functor argument "sameVol" to os-path-fn.sml in the Basis
2102 :     (under Win32, the volume name is case-insensitive, and the
2103 :     OS.Path code compares volume names for equality)
2104 :    
2105 :     ----------------------------------------------------------------------
2106 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2107 : mblume 1353 Date: 2003/09/08 11:55:00 CDT
2108 :     Tag: blume-20030908-fullpath
2109 :     Description:
2110 :    
2111 :     Made Win32 version of OS.FileSys.fullPath return current directory
2112 :     when given an empty string. This is what the spec says, and incidentally,
2113 :     CM depends on it. (CM otherwise goes into an infinite loop in certain
2114 :     cases when presented with the name of a non-existing .cm file.)
2115 :    
2116 :     ----------------------------------------------------------------------
2117 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2118 : mblume 1350 Date: 2003/09/04 16:30:00 CDT
2119 : mblume 1352 Tag: blume-20030905-slices-etc
2120 : mblume 1350 Description:
2121 :    
2122 :     1. Changed interface to vectors and arrays in Basis to match
2123 :     (draft) Basis spec.
2124 :     2. Added signatures and implementations of slices according to
2125 :     Basis spec.
2126 :     3. Edited source code throughout the system to make it compile again
2127 :     under 1. and 2. (In some cases code had to be added to have it
2128 :     match the new signatures.)
2129 :     4. MLRISC should be backward-compatible: the copies of the originals
2130 :     of files that needed to change under 3. were retained, the .cm files
2131 :     check the compiler version number and use old versions when
2132 :     appropriate.
2133 :     5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
2134 :     dirstream -> string option (in accordance with Basis spec).
2135 :     6. When generating code that counts lines, ml-lex used function
2136 :     CharVector.foldli, taking advantage of its old interface.
2137 :     This has been replaced with the corresponding code from
2138 :     CharVectorSlice. (html-lex must be re-lexed!)
2139 :     7. BitArray in smlnj-lib/Util has been extended/modified to match the
2140 :     new MONO_ARRAY signature. (Do we need BitArraySlice?)
2141 :     8. Removed temporary additions (fromInternal, toInternal) from the
2142 :     (now obsolete) IntInf in smlnj-lib/Util.
2143 :     9. Cleaned up structure Byte.
2144 :     10. Added localOffset, scan, and fromString to Date (according to spec).
2145 :     Cleaned/corrected implementation of Date.
2146 :     (Still need to check for correctness; implement better canonicalizeDate.)
2147 :     11. Added "scan" to signature IEEE_REAL.
2148 :     12. Some improvements to IntInf [in particular: efficiency-hack for
2149 :     mod and rem when second operand is 2 (for parity checks).]
2150 :     13. Changed representation of type Time.time, using a single IntInf.int
2151 :     value counting microseconds. This considerably simplified the
2152 :     implementation of structure Time. We now support negative time
2153 :     values; scan and fromString handle signs.
2154 :     14. Functor PrimIO now takes two additional arguments (VectorSlice and
2155 :     ArraySlice).
2156 :    
2157 :     ----------------------------------------------------------------------
2158 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2159 : mblume 1347 Date: 2003/08/28 17:00:00 CDT
2160 :     Tag: blume-20030828-intinf
2161 :     Description:
2162 :    
2163 :     This is a major update which comes with a version number bump
2164 :     (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
2165 :     and an implementation of IntInf in the Basis.
2166 :    
2167 :     There are a fairly large number of related changes and updates throughout
2168 :     the system:
2169 :    
2170 :     Basis:
2171 :     - Implemented IntInf.
2172 :     - Made LargeInt a projection of IntInf (by filtering through INTEGER).
2173 : mblume 1348 - Added some missing Real64 operations, most notably Real.toLargeInt.
2174 : mblume 1347 - Added FixedInt as a synonym for Int32.
2175 :    
2176 :     compiler:
2177 :     * Added support for a built-in intinf type.
2178 :     - literals
2179 :     - pattern matching
2180 :     - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
2181 :     - overloading on literals and operations
2182 :    
2183 :     This required adding a primitive type intinf, some additional
2184 :     primops, and implementations for several non-trivial intinf
2185 :     operations in Core. (The intinf type is completely abstract
2186 :     to the compiler; all operations get delegated back to the Core.)
2187 :    
2188 :     * Intinf equality is handled by polyequal. However, the compiler
2189 :     does not print its usual warning in this case (since polyequal
2190 :     is the right thing to do there).
2191 :    
2192 :     * Improved the organization of structure InlineT.
2193 :    
2194 :     * A word about conversion primops:
2195 :     If conversions involving intinf do not cancel out during
2196 : mblume 1348 CPS contract, then the compiler must insert calls to Core functions.
2197 : mblume 1347 Since all core access must be resolved already during the FLINT
2198 :     translate phase, it would be too late a the time of CPS contract
2199 : mblume 1348 to add new Core calls. For this reason, conversion primops
2200 : mblume 1347 for intinf carry two arguments: 1. the numeric argument that
2201 :     they are supposed to convert, and 2. the Core function that
2202 :     can help with this conversion if necessary. If CPS contract
2203 : mblume 1348 eliminates a primop, then the associated Core function becomes
2204 :     dead and goes away. Intinf conversion primops that do not get
2205 :     eliminated by CPS contract get rewritten into calls of their
2206 :     core functions by a separate, new phase.
2207 : mblume 1347
2208 :     interactive system:
2209 :     - Control.Print.intinfDepth controls max length of intinf constants
2210 :     being printed. (Analogous to Control.Print.stringDepth.)
2211 :     - Cleanup in printutil and pputil: got rid of unused stuff and
2212 :     duplicates; replaced some of the code with code that makes better
2213 :     use of library functionality.
2214 :    
2215 :     CM:
2216 :     Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
2217 :     are no longer silent.
2218 :    
2219 :     CKIT:
2220 :     Fixed mismatched uses of Int32 and LargeInt. I always decided
2221 :     in favor of LargeInt -- which is now the same as IntInf.
2222 :     CKIT-knowledgable people should check whether this is what's
2223 :     intended and otherwise change things back to using Int32 or
2224 :     FixedInt.
2225 :    
2226 :     Throughout the code:
2227 : mblume 1348 Started using IntInf.int literals and built-in operations
2228 : mblume 1347 (e.g., comparison with 0) where this seems appropriate.
2229 :    
2230 :    
2231 :     ----------------------------------------------------------------------
2232 : macqueen 1343 Name: Dave MacQueen (dbm@cs.uchicago.edu)
2233 :     Date: 2003/08/13 11:36:00 CDT
2234 :     Tag: dbm-20030813-mcz-merge1
2235 :     Description:
2236 :    
2237 :     Merging changes from the mcz-branch development branch into trunk.
2238 :     These changes involve replacement of the emulated old prettyprinter
2239 :     interface with direct use of the SML/NJ Lib PP library, and fixing
2240 :     of a couple of bugs (895, 1186) relating to error messages. A new
2241 :     prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
2242 :     has been added.
2243 :    
2244 :     ----------------------------------------------------------------------
2245 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2246 : mblume 1342 Date: 2003/08/11 15:45:00 CDT
2247 :     Tag: blume-20030811-windows
2248 :     Description:
2249 :    
2250 :     Version number bumped to 110.42.9. NEW BOOTFILES!!!
2251 :    
2252 :     http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
2253 :    
2254 :     This patch restores SML/NJ's ability to run under win32. There are a
2255 :     number of changes, including fixes for several bugs that had gone
2256 :     unnoticed until now:
2257 :    
2258 :     - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
2259 :     trying to run the win32 version from within cygwin.)
2260 :    
2261 :     - There are a number of simple .bat scripts that substitute for their
2262 :     corresponding Unix shell-scripts. (See below.)
2263 :    
2264 :     - The internals of ml-build have been modified slightly. The main
2265 :     difference is that instead of calling ".link-sml" (or link-sml.bat)
2266 :     using OS.Process.system, the ML process delegates this task back
2267 :     to the script. Otherwise problems arise in mixed environments such
2268 :     as Cygwin where scripts look and work like Unix scripts, but
2269 :     where OS.Process.system cannot run them.
2270 :    
2271 :     - In CM, the srcpath pickler used native pathname syntax -- which
2272 :     is incorrect in the case of cross-compilation. The new pickle format
2273 :     is independent of platform-specific naming conventions.
2274 :    
2275 :     - Path configuration files (such as lib/pathconfig) can now choose
2276 :     between native and standard syntax. Placing a line of the form
2277 :    
2278 :     standard!
2279 :    
2280 :     into the file causes all subsequent paths to be interpreted using
2281 :     CM standard pathname syntax (= Unix conventions); a line
2282 :    
2283 :     native!
2284 :    
2285 :     switches back to native style. This was needed so that
2286 :     path config files can be written portably, see src/system/pathconfig.
2287 :    
2288 :     - Runtime system:
2289 :    
2290 :     - win32-filesys.c: get_file_time and set_file_time now
2291 :     access modification time, not creation time.
2292 :    
2293 :     - I/O code made aware of new array representation.
2294 :    
2295 :     - Bug fixes in X86.prim.masm.
2296 :    
2297 :     - src/system/makeml made aware of win32. (For use under cygwin
2298 :     and other Unix-environments for windows.)
2299 :    
2300 :     - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
2301 :     which caused BinIO.inputAll to fail consistently.
2302 :    
2303 :     .bat scripts:
2304 :    
2305 :     Windows .bat scripts assume that SMLNJ_HOME is defined.
2306 :    
2307 :     - sml.bat, ml-yacc.bat, ml-lex.bat: Driver scripts for standalone
2308 :     applications (sml, ml-yacc, ml-lex).
2309 :     - ml-build.bat: analogous to ml-build.
2310 :     - config\install.bat: Analogous to config/install.sh. This requires
2311 :     that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
2312 :     (nmake etc. must be on the path, and vcvars32 must have been run.)
2313 :     Moreover, sources for ml-lex and ml-yacc need to exist under src,
2314 :     and the bootfile hierarchy must have been unpacked under
2315 :     sml.boot.x86-win32.
2316 :     The script is very primitive and does a poor job at error checking.
2317 :     It only installs the base system, ml-lex, and ml-yacc. No other
2318 :     libraries are being installed (i.e., you get only those that
2319 :     are part of the compiler.)
2320 :     - link-sml.bat: analogous to .link-sml, but not currently used
2321 :    
2322 :     Unrelated bug fixes:
2323 :    
2324 :     - ml-nlffigen now exports structures ST_* corresponding to incomplete
2325 :     types.
2326 :     - Added getDevice to PP/src/pp-debug-fn.sml. (Would not compile
2327 :     otherwise.)
2328 :    
2329 :     ----------------------------------------------------------------------
2330 : macqueen 1337 Name: Dave MacQueen (macqueen@cs.uchicago.edu)
2331 :     Date: 2003/06/17
2332 :     Tag: macqueen-20030617-bug895
2333 :     Description:
2334 :    
2335 :     Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
2336 :     Tag will be used for new development branch (mcz-branch) for
2337 :     use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
2338 :    
2339 :     ----------------------------------------------------------------------
2340 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2341 : mblume 1335 Date: 2003/05/27 16:55:00 CDT
2342 :     Tag: blume-20030527-polyeq
2343 :     Description:
2344 :    
2345 :     Tried to eliminated most cases of polymorphic equality.
2346 :    
2347 :     ----------------------------------------------------------------------
2348 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2349 : mblume 1334 Date: 2003/05/21 17:45:00 CDT
2350 :     Tag: blume-20030517-complete
2351 :     Description:
2352 :    
2353 :     Two changes:
2354 :    
2355 :     1. Added a flag for controlling whether non-exhaustive bindings will
2356 :     be treated as errors (default is false).
2357 :     2. Cleaned up the *entire* source tree so that CMB.make goes through
2358 :     without a single non-exhaustive match- or bind warning.
2359 :    
2360 :     ----------------------------------------------------------------------
2361 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2362 : mblume 1332 Date: 2003/05/17 10:20:00 CDT
2363 :     Tag: blume-20030517-absyn
2364 :     Description:
2365 :    
2366 :     1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
2367 :    
2368 :     This mainly affects the quality of error messages. However, some
2369 :     of the code is now more straightforward than before. (Treatment of
2370 :     the above four constructs in translate.sml is much simpler than
2371 :     the "macro-expansion" that was going on before. Plus, the mach-
2372 :     compiler no longer gets invoked just to be able to compile an
2373 :     if-expression.)
2374 :    
2375 :     2. The ErrorMsg.Error exception is now caught and absorbed by the
2376 :     interactive loop.
2377 :    
2378 :     ----------------------------------------------------------------------
2379 : allenleung 1327 Name: Allen Leung
2380 :     Date: 2003/05/16 13:05:00 CDT
2381 :     Tag: leunga-20030516-cygwin-runtime
2382 :     Description:
2383 :    
2384 :     Ported the runtime system to cygwin, which uses the unix
2385 :     x86-unix bin files. Missing/buggy features:
2386 :    
2387 :     o getnetbyname, getnetbyaddr: these functions seem to be missing in
2388 :     the Cygwin library.
2389 :     o Ctrl-C handling may be flaky.
2390 :     o Windows system calls and Windows I/O are not supported.
2391 :    
2392 :     A new set of binfiles is located at:
2393 :    
2394 :     http://www.dorsai.org/~leunga/boot.x86-unix.tgz
2395 :    
2396 :     This is only needed for bootstrapping the cygwin version of smlnj.
2397 :     Other x86 versions can use the existing binfiles.
2398 :    
2399 :     ----------------------------------------------------------------------
2400 : mblume 1317 Name: Matthias Blume
2401 :     Date: 2003/04/08 15:42:00 CDT
2402 :     Tag: blume-20030408-listpair
2403 :     Description:
2404 :    
2405 :     1. Added a target 'mlrisc' to installer.
2406 :    
2407 :     2. Added missing elements to structure ListPair.
2408 :    
2409 :     ----------------------------------------------------------------------
2410 : leunga 1296 Name: Allen Leung
2411 :     Date: 2003/01/07 10:40:00 EST
2412 :     Tag: leunga-20030107-int-rem
2413 :     Description:
2414 :    
2415 :     Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
2416 :     The arguments to the SUBL instruction were swapped.
2417 :    
2418 :     ----------------------------------------------------------------------
2419 : blume 1229 Name: Matthias Blume
2420 : blume 1294 Date: 2002/12/12 16:25:00 EST
2421 :     Tag: blume-20021212-risc-ra
2422 :     Description:
2423 :    
2424 :     Fixed a serious bug in the rewrite code for FP spilling/reloading that
2425 :     sent the RA into an infinite loop when floating point registers get
2426 :     spilled. (Because of this bug, e.g., nucleic stopped compiling between
2427 :     110.37 and 110.38.)
2428 :     There was another set of potential problems related to the handling of
2429 :     MLRISC annotations (but those did not yet cause real problems, apparently).
2430 :    
2431 :     ----------------------------------------------------------------------
2432 :     Name: Matthias Blume
2433 : blume 1291 Date: 2002/12/06 22:40:00 EST
2434 :     Tag: blume-20021206-cm-fileid
2435 :     Description:
2436 :    
2437 :     Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
2438 :     This fixes the problem of CM getting confused by files that suddenly
2439 :     change their identity (e.g., by getting unlinked and recreated by some
2440 :     text editor such as vi). There might be a better/cheaper/cleaner way
2441 :     of doing this, but for now this will have to do.
2442 :    
2443 :     ----------------------------------------------------------------------
2444 :     Name: Matthias Blume
2445 : blume 1288 Date: 2002/10/28 09:50:00 EST
2446 :     Tag: blume-20021028-typecheck
2447 :     Description:
2448 :    
2449 :     Exported structure Typecheck from $smlnj/viscomp/core.cm.
2450 :    
2451 :     ----------------------------------------------------------------------
2452 :     Name: Matthias Blume
2453 : blume 1282 Date: 2002/10/17 09:10:00 EDT
2454 : blume 1279 Tag: Release_110_42
2455 :     Description:
2456 :    
2457 : blume 1282 In good old tradition, there has been a slight hiccup so that we have
2458 :     to patch 110.42 after the fact. The old release tag has been replaced
2459 :     (see below).
2460 :    
2461 :     The change solves a problem with two competing approaches the
2462 :     configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
2463 :     each other's way.
2464 :    
2465 :     This change only affects the runtime system code and the installer script.
2466 :     (No new bootfiles.)
2467 :    
2468 :     ----------------------------------------------------------------------
2469 :     Name: Matthias Blume
2470 :     Date: 2002/10/16 12:00:00 EDT
2471 :     Tag: Release_110_42_removed
2472 :     Description:
2473 :    
2474 : blume 1279 New working release. New bootfiles.
2475 :    
2476 :     ----------------------------------------------------------------------
2477 :     Name: Matthias Blume
2478 : blume 1273 Date: 2002/10/10 13:10:00 EDT
2479 :     Tag: blume-20021010-ppc-divs
2480 :     Description:
2481 :    
2482 :     The mltree operator DIVS must be implemented with an overflow check on
2483 :     the PPC because the hardware indicates divide-by-zero using "overflow" as
2484 :     well.
2485 :    
2486 :     ----------------------------------------------------------------------
2487 :     Name: Matthias Blume
2488 : blume 1261 Date: 2002/07/23 11:45:00
2489 :     Tag: blume-20020723-smlnj-home
2490 :     Description:
2491 :    
2492 :     Sml now senses the SMLNJ_HOME environment variable. If this is set,
2493 :     then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
2494 :     CM_PATHCONFIG is also set), the path configuration file is assumed
2495 :     to be in $SMLNJ_HOME/lib/pathconfig. This way one can easily move
2496 :     the entire tree to some other place and everything will "just work".
2497 :    
2498 :     (Companion commands such as ml-build and ml-makedepend also sense this
2499 :     variable.)
2500 :    
2501 :     ----------------------------------------------------------------------
2502 :     Name: Matthias Blume
2503 : blume 1259 Date: 2002/07/12 21:19:00 EDT
2504 :     Tag: blume-20020712-liveness
2505 :     Description:
2506 :    
2507 :     Exported two useful "step" functions from liveness module (MLRISC).
2508 :    
2509 :     ----------------------------------------------------------------------
2510 :     Name: Matthias Blume
2511 : blume 1253 Date: 2002/07/05 16:00 EDT
2512 :     Tag: Release_110_41
2513 :     Description:
2514 :    
2515 :     New working release. New bootfiles.
2516 :    
2517 :     ----------------------------------------------------------------------
2518 :     Name: Matthias Blume
2519 : blume 1250 Date: 2002/07/05 10:25:00 EDT
2520 :     Tag: blume-20020705-btimp
2521 :     Description:
2522 :    
2523 :     Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
2524 :     other clients can set up backtracing support.
2525 :    
2526 :     ----------------------------------------------------------------------
2527 :     Name: Matthias Blume
2528 : blume 1249 Date: 2002/06/25 17:23:00 EDT
2529 :     Tag: blume-20020625-fpmax
2530 :     Description:
2531 :    
2532 :     Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
2533 :     case. (The sense of the isNaN test was reversed -- which made min and
2534 :     max always return their first argument.)
2535 :    
2536 :     ----------------------------------------------------------------------
2537 :     Name: Matthias Blume
2538 : blume 1240 Date: 2002/06/11
2539 :     Tag: blume-20020611-unixpath
2540 :     Description:
2541 :    
2542 :     Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
2543 :    
2544 :     ----------------------------------------------------------------------
2545 :     Name: Matthias Blume
2546 : blume 1238 Date: 2002/06/10 16:35:00 EDT
2547 :     Tag: blume-20020610-ieeereal
2548 :     Description:
2549 :    
2550 :     I back-ported my implementation of IEEEReal.fromString from the
2551 :     idlbasis-devel branch so that we can test it.
2552 :    
2553 :     Another small change is that ppDec tries to give more information
2554 :     than just "<sig>" in the case of functors. However, this code is
2555 :     broken in some mysterious way if the functor's body's signature
2556 :     has not been declared by ascription but gets inferred from the
2557 :     implementation. This needs fixing...
2558 :    
2559 :     ----------------------------------------------------------------------
2560 :     Name: Matthias Blume
2561 : blume 1229 Date: 2002/05/31
2562 :     Tag: blume-20020531-btrace-mode
2563 :     Description:
2564 :    
2565 :     Resurrected SMLofNJ.Internals.BTrace.mode. (It accidentally fell by
2566 :     the wayside when I switched over to using Controls everywhere.)
2567 :    
2568 :     ----------------------------------------------------------------------
2569 : george 1222 Name: Lal George
2570 :     Date: 2002/05/23 12:21:40 EDT
2571 :     Tag: george-20020523-visual-labels
2572 :     Description:
2573 :    
2574 :     Labels are now displayed in the graphical output to make
2575 :     the fall-through and target blocks obvious.
2576 :    
2577 :     ----------------------------------------------------------------------
2578 : blume 1204 Name: Matthias Blume
2579 : blume 1220 Date: 2002/05/22 11:03:00 EDT
2580 :     Tag: blume-20020522-shrink
2581 :     Description:
2582 :    
2583 :     John tweaked yesterday's fix for 1131 to handle an out-of-memory
2584 :     situation that comes up when allocating huge arrays.
2585 :    
2586 :     ----------------------------------------------------------------------
2587 :     Name: Matthias Blume
2588 : blume 1215 Date: 2002/05/21 16:00:00 EDT
2589 :     Tag: Release_110_40
2590 :     Description:
2591 :    
2592 :     New working release (110.40). New bootfiles.
2593 :    
2594 :     [Also: John Reppy fixed GC bug 1131.]
2595 :    
2596 :     ----------------------------------------------------------------------
2597 :     Name: Matthias Blume
2598 : blume 1212 Date: 2002/05/21 12:35:00 EDT
2599 :     Tag: blume-20020521-cmdoc
2600 :     Description:
2601 :    
2602 :     CM documentation update.
2603 :    
2604 :     ----------------------------------------------------------------------
2605 :     Name: Matthias Blume
2606 : blume 1211 Date: 2002/05/21 10:55:00 EDT
2607 :     Tag: blume-20020521-misc
2608 :     Description:
2609 :    
2610 :     - John tweaked runtime to be silent on heap export (except when
2611 :     GC messages are on).
2612 :     - I added a few more things (cross-compiling versions of CMB) to
2613 :     config/preloads (as suggestions).
2614 :    
2615 :     ----------------------------------------------------------------------
2616 :     Name: Matthias Blume
2617 : blume 1208 Date: 2002/05/20 22:25:00 EDT
2618 :     Tag: blume-20020520-controls
2619 :     Description:
2620 :    
2621 :     - Added ControlUtil structure to control-lib.cm.
2622 :     - Use it throughout.
2623 :     - Used Controls facility to define MLRISC controls (as opposed to
2624 :     registering MLRISC control ref cells with Controls after the fact)
2625 :     - Fixed messed-up controls priorities.
2626 :    
2627 :     * Removed again all the stuff from config/preloads that one wouldn't
2628 :     be able to preload at the time the initial heap image is built.
2629 :     (Many libraries, e.g., CML, do not exist yet at this time. The
2630 :     only libraries that can be preloaded via config/preloads are those
2631 :     that come bundled with the bootfiles.)
2632 :    
2633 :     ----------------------------------------------------------------------
2634 :     Name: Matthias Blume
2635 : blume 1204 Date: 2002/05/20 10:59:00 EDT
2636 :     Tag: blume-20020520-preloads
2637 :     Description:
2638 :    
2639 :     Added a lot of commented-out suggestions for things to be included
2640 :     in config/preloads.
2641 :    
2642 :     ----------------------------------------------------------------------
2643 : leunga 1203 Name: Allen Leung
2644 :     Date: 2002/05/18 14:20:00 EDT
2645 :     Tag: leunga-20020518-mdl
2646 :     Description:
2647 :    
2648 :     o Made the mdl tool stuff compile and run again.
2649 :     o I've disabled all the stuff that depends on RTL specifications; they
2650 :     are all badly broken anyway.
2651 :    
2652 :     ----------------------------------------------------------------------
2653 : blume 1201 Name: Matthias Blume
2654 :     Date: 2002/05/17 16:49:00 EDT
2655 :     Tag: blume-20020517-controls
2656 :     Description:
2657 :    
2658 :     0. John Reppy made several modifications to the SML/NJ library.
2659 :     In particular, there is a shiny new controls-lib.cm.
2660 :    
2661 :     1. Pushed new controls interface through compiler so that everything
2662 :     compiles again.
2663 :    
2664 :     2. Added FormatComb and FORMAT_COMB to the CML version of the
2665 :     SML/NJ library (so that CML compiles again).
2666 :    
2667 :     3. Modified init scripts because XXX_DEFAULT environment variables
2668 :     are no longer with us. (Boot-time initialization is now done
2669 :     using the same environment variables that are also used for
2670 :     startup-time initialization of controls.)
2671 :    
2672 :     ----------------------------------------------------------------------
2673 : george 1192 Name: Lal George
2674 :     Date: 2002/05/15 09:20:10 EDT
2675 :     Tag: george-20020515-pseudo-op-decls
2676 :     Description:
2677 :    
2678 :     All pseudo-ops emitted before the first segment declaration
2679 :     such as TEXT, DATA, and BSS directives are assumed to be global
2680 :     declarations and are emitted first in the assembly file. This is
2681 :     useful in a number of situations where one has pseudo-ops that are not
2682 :     specific to any segment, and also works around the constraint that one
2683 :     cannot have client pseudo-ops in the TEXT segment.
2684 :    
2685 :     Because no segment is associated with these declarations it is
2686 :     an error to allocate any space or objects before the first segment
2687 :     directive and an exception will be raised. However, we cannot make
2688 :     this check for client pseudo-ops.
2689 :    
2690 :     These top level declarations are a field in the CFG graph_info.
2691 :     In theory you can continue to add to this field after the CFG has been
2692 :     built -- provided you know what you are doing;-)
2693 :    
2694 :     ----------------------------------------------------------------------
2695 : blume 1175 Name: Matthias Blume
2696 : blume 1190 Date: 2002/05/13 16:40:00 EDT
2697 :     Tag: blume-20020513-pp-etc
2698 :     Description:
2699 :    
2700 :     A few minor bugfixes:
2701 :    
2702 :     - Stopgap measure for bug recently reported by Elsa Gunter (ppDec).
2703 :     (Bogus printouts for redefined bindings still occur. Compiler
2704 :     bug should no longer occur now. We need to redo the prettyprinter
2705 :     from scratch.)
2706 :    
2707 :     - CM pathname printer now also adds escape sequences for ( and )
2708 :    
2709 :     - commend and docu fixes for ml-nlffi
2710 :    
2711 :     ----------------------------------------------------------------------
2712 :     Name: Matthias Blume
2713 : blume 1189 Date: 2002/05/10 16:40:00 EDT
2714 :     Tag: blume-20020510-erg-textio
2715 :     Description:
2716 :    
2717 :     Applied the following bugfix provided by Emden Gansner:
2718 :    
2719 :     Output is corrupted when outputSubstr is used rather than output.
2720 :    
2721 :     The problem occurs when a substring
2722 :    
2723 :     ss = (s, dataStart, dataLen)
2724 :    
2725 :     where dataStart > 0, fills a stream buffer with avail bytes left.
2726 :     avail bytes of s, starting at index dataStart, are copied into the
2727 :     buffer, the buffer is flushed, and then the remaining dataLen-avail
2728 :     bytes of ss are copied into the beginning of the buffer. Instead of
2729 :     starting this copy at index dataStart+avail in s, the current code
2730 :     starts the copy at index avail.
2731 :    
2732 :     Fix:
2733 :     In text-io-fn.sml, change line 695 from
2734 :     val needsFlush = copyVec(v, avail, dataLen-avail, buf, 0)
2735 :     to
2736 :     val needsFlush = copyVec(v, dataStart+avail, dataLen-avail, buf, 0)
2737 :    
2738 :     ----------------------------------------------------------------------
2739 :     Name: Matthias Blume
2740 : blume 1186 Date: 2002/04/12 13:55:00 EDT
2741 :     Tag: blume-20020412-assyntax
2742 :     Description:
2743 :    
2744 :     1. Grabbed newer assyntax.h from the XFree86 project.
2745 :     2. Fiddled with how to compile X86.prim.asm without warnings.
2746 :     3. (Very) Minor cleanup in CM.
2747 :    
2748 :     ----------------------------------------------------------------------
2749 :     Name: Matthias Blume
2750 : blume 1185 Date: 2002/04/01 (no joke!) 17:07:00 EST
2751 :     Tag: blume-20020401-x86div
2752 :     Description:
2753 :    
2754 :     Added full support for div/mod/rem/quot on the x86, using the machine
2755 :     instruction's two results (without clumsily recomputing the remainder)
2756 :     directly where appropriate.
2757 :    
2758 :     Some more extensive power-of-two support was added to the x86 instruction
2759 :     selector (avoiding expensive divs, mods, and muls where they can be
2760 :     replaced with cheaper shifts and masks). However, this sort of thing
2761 :     ought to be done earlier, e.g., within the CPS optimizer so that
2762 :     all architectures benefit from it.
2763 :    
2764 :     The compiler compiles to a fixed point, but changes might be somewhat
2765 :     fragile nevertheless. Please, report any strange things that you might
2766 :     see wrt. div/mod/quot/rem...
2767 :    
2768 :     ----------------------------------------------------------------------
2769 :     Name: Matthias Blume
2770 : blume 1184 Date: 2002/03/29 17:22:00
2771 :     Tag: blume-20020329-div
2772 :     Description:
2773 :    
2774 :     Fixed my broken div/mod logic. Unfortunately, this means that the
2775 :     inline code for div/mod now has one more comparison than before.
2776 :     Fast paths (quotient > 0 or remainder = 0) are not affected, though.
2777 :     The problem was with quotient = 0, because that alone does not tell
2778 :     us which way the rounding went. One then has to look at whether
2779 :     remainder and divisor have the same sign... :(
2780 :    
2781 :     Anyway, I replaced the bootfiles with fresh ones...
2782 :    
2783 :     ----------------------------------------------------------------------
2784 :     Name: Matthias Blume
2785 : blume 1183 Date: 2002/03/29 14:10:00 EST
2786 :     Tag: blume-20020329-inlprims
2787 :     Description:
2788 :    
2789 :     NEW BOOTFILES!!! Version number bumped to 110.39.3.
2790 :    
2791 :     Primops have changed. This means that the bin/boot-file formats have
2792 :     changed as well.
2793 :    
2794 :     To make sure that there is no confusion, I made a new version.
2795 :    
2796 :    
2797 :     CHANGES:
2798 :    
2799 :     * removed REMT from mltree (remainder should never overflow).
2800 :    
2801 :     * added primops to deal with divisions of all flavors to the frontend
2802 :    
2803 :     * handled these primops all the way through so they map to their respective
2804 :     MLRISC support
2805 :    
2806 :     * used these primops in the implementation of Int, Int32, Word, Word32
2807 :    
2808 :     * removed INLDIV, INLMOD, and INLREM as they are no longer necessary
2809 :    
2810 :     * parameterized INLMIN, INLMAX, and INLABS by a numkind
2811 :    
2812 :     * translate.sml now deals with all flavors of INL{MIN,MAX,ABS}, including
2813 :     floating point
2814 :    
2815 :     * used INL{MIN,MAX,ABS} in the implementation of Int, Int32, Word, Word32,
2816 :     and Real (but Real.abs maps to a separate floating-point-only primop)
2817 :    
2818 :    
2819 :     TODO items:
2820 :    
2821 :     * Hacked Alpha32 instruction selection, disabling the selection of REMx
2822 :     instructions because the machine instruction encoder cannot handle
2823 :     them. (Hppa, PPC, and Sparc instruction selection did not handle
2824 :     REM in the first place, and REM is supported by the x86 machine coder.)
2825 :    
2826 :     * Handle DIV and MOD with DIV_TO_NEGINF directly in the x86 instruction
2827 :     selection phase. (The two can be streamlined because the hardware
2828 :     delivers both quotient and remainder at the same time anyway.)
2829 :    
2830 :     * Think about what to do with "valOf(Int32.minInt) div ~1" and friends.
2831 :     (Currently the behavior is inconsistent both across architectures and
2832 :     wrt. the draft Basis spec.)
2833 :    
2834 :     * Word8 should eventually be handled natively, too.
2835 :    
2836 :     * There seems to be one serious bug in mltree-gen.sml. It appears, though,
2837 :     as if there currently is no execution path that could trigger it in
2838 :     SML/NJ. (The assumptions underlying functions arith and promotable do not
2839 :     hold for things like multiplication and division.)
2840 :    
2841 :     ----------------------------------------------------------------------
2842 :     Name: Matthias Blume
2843 : blume 1181 Date: 2002/03/27 16:27:00 EST
2844 :     Tag: blume-20020327-mlrisc-divisions
2845 :     Description:
2846 :    
2847 :     Added support for all four division operations (ML's div, mod, quot,
2848 :     and rem) to MLRISC. In the course of doing so, I also rationalized
2849 :     the naming (no more annoying switch-around of DIV and QUOT), by
2850 :     parameterizing the operation by div_rounding_mode (which can be either
2851 :     DIV_TO_ZERO or DIV_TO_NEGINF).
2852 :    
2853 :     The generic MLTreeGen functor takes care of compiling all four
2854 :     operations down to only round-to-zero div.
2855 :    
2856 :     Missing pieces:
2857 :    
2858 :     * Doing something smarter than relying on MLTreeGen on architectures
2859 :     like, e.g., the x86 where hardware division delivers both quotient and
2860 :     remainder at the same time. With this, the implementation of the
2861 :     round-to-neginf operations could be further streamlined.
2862 :    
2863 :     * Remove inlining support for div/mod/rem from the frontend and replace it
2864 :     with primops that get carried through to the backend. Do this for all
2865 :     int and word types.
2866 :    
2867 :     ----------------------------------------------------------------------
2868 :     Name: Matthias Blume
2869 : blume 1180 Date: 2002/03/25 17:25:00 EST
2870 :     Tag: blume-20020325-divmod
2871 :     Description:
2872 :    
2873 :     I improved (hopefully without breaking them) the implementation of Int.div,
2874 :     Int.mod, and Int.rem. For this, the code in translate.sml now takes
2875 :     advantage of the following observations:
2876 :    
2877 :     Let q = x quot y r = x rem y
2878 :     d = x div y m = x mod y
2879 :    
2880 :     where "quot" is the round-to-zero version of integer division that
2881 :     hardware usually provides. Then we have:
2882 :    
2883 :     r = x - q * y where neither the * nor the - will overflow
2884 :     d = if q >= 0 orelse x = q * y then q else q - 1
2885 :     where neither the * nor the - will overflow
2886 :     m = if q >= 0 orelse r = 0 then r else r + y
2887 :     where the + will not overflow
2888 :    
2889 :     This results in substantial simplification of the generated code.
2890 :     The following table shows the number of CFG nodes and edges generated
2891 :     for
2892 :     fun f (x, y) = x OPER y
2893 :     (* with OPER \in div, mod, quot, rem *)
2894 :    
2895 :    
2896 :     OPER | nodes(old) | edges(old) | nodes(new) | edges(new)
2897 :     --------------------------------------------------------
2898 :     div | 24 | 39 | 12 | 16
2899 :     mod | 41 | 71 | 12 | 16
2900 :     quot | 8 | 10 | 8 | 10
2901 :     rem | 10 | 14 | 8 | 10
2902 :    
2903 :    
2904 :     ----------------------------------------------------------------------
2905 :     Name: Matthias Blume
2906 : blume 1179 Date: 2002/03/25 22:06:00 EST
2907 :     Tag: blume-20020325-cprotobug
2908 :     Description:
2909 :    
2910 :     Fixed a bug in cproto (c prototype decoder).
2911 :    
2912 :     ----------------------------------------------------------------------
2913 :     Name: Matthias Blume
2914 : blume 1178 Date: 2002/03/25 16:00:00 EST
2915 :     Tag: blume-20020325-raw-primops
2916 :     Description:
2917 :    
2918 :     I did some cleanup to Allen's new primop code and
2919 :     replaced yesterday's bootfiles with new ones.
2920 :     (But they are stored in the same place.)
2921 :    
2922 :     ----------------------------------------------------------------------
2923 :     Name: Matthias Blume
2924 : blume 1175 Date: 2002/03/24 22:40:00 EST
2925 :     Tag: blume-20020324-bootfiles
2926 :     Description:
2927 :    
2928 :     Made the bootfiles that Allen asked for.
2929 :    
2930 :     ----------------------------------------------------------------------
2931 : leunga 1174 Name: Allen Leung
2932 :     Date: 2002/03/23 15:50:00 EST
2933 :     Tag: leunga-20020323-flint-cps-rcc-primops
2934 :     Description:
2935 :    
2936 :     1. Changes to FLINT primops:
2937 :    
2938 :     (* make a call to a C-function;
2939 :     * The primop carries C function prototype information and specifies
2940 :     * which of its (ML-) arguments are floating point. C prototype
2941 :     * information is for use by the backend, ML information is for
2942 :     * use by the CPS converter. *)
2943 :     | RAW_CCALL of { c_proto: CTypes.c_proto,
2944 :     ml_args: ccall_type list,
2945 :     ml_res_opt: ccall_type option,
2946 :     reentrant : bool
2947 :     } option
2948 :     (* Allocate uninitialized storage on the heap.
2949 :     * The record is meant to hold short-lived C objects, i.e., they
2950 :     * are not ML pointers. With the tag, the representation is
2951 :     * the same as RECORD with tag tag_raw32 (sz=4), or tag_fblock (sz=8)
2952 :     *)
2953 :     | RAW_RECORD of {tag:bool,sz:int}
2954 :     and ccall_type = CCALL_INT32 | CCALL_REAL64 | CCALL_ML_PTR
2955 :    
2956 :     2. These CPS primops are now overloaded:
2957 :    
2958 :     rawload of {kind:numkind}
2959 :     rawstore of {kind:numkind}
2960 :    
2961 :     The one argument form is:
2962 :    
2963 :     rawload {kind} address
2964 :    
2965 :     The two argument form is:
2966 :    
2967 :     rawload {kind} [ml object, byte-offset]
2968 :    
2969 :     3. RAW_CCALL/RCC now takes two extra arguments:
2970 :    
2971 :     a. The first is whether the C call is reentrant, i.e., whether
2972 :     ML state should be saved and restored.
2973 :     b. The second argument is a string argument specifying the name of
2974 :     library and the C function.
2975 :    
2976 :     These things are currently not handled in the code generator, yet.
2977 :    
2978 :     4. In CProto,
2979 :    
2980 :     An encoding type of "bool" means "ml object" and is mapped into
2981 :     C prototype of PTR. Note that "bool" is different than "string",
2982 :     even though "string" is also mapped into PTR, because "bool"
2983 :     is assigned an CPS type of BOGt, while "string" is assigned INT32t.
2984 :    
2985 :     5. Pickler/unpicker
2986 :    
2987 :     Changed to handle RAW_RECORD and newest RAW_CCALL
2988 :    
2989 :     6. MLRiscGen,
2990 :    
2991 :     1. Changed to handle the new rawload/rawstore/rawrecord operators.
2992 :     2. Code for handling C Calls has been moved to a new module CPSCCalls,
2993 :     in the file CodeGen/cpscompile/cps-c-calls.sml
2994 :    
2995 :     7. Added the conditional move operator
2996 :    
2997 :     condmove of branch
2998 :    
2999 :     to cps. Generation of this is still buggy so it is currently
3000 :     disabled.
3001 :    
3002 :     ----------------------------------------------------------------------
3003 : george 1168 Name: Lal George
3004 :     Date: 2002/03/22 14:18:25 EST
3005 : george 1171 Tag: george-20020322-cps-branch-prob
3006 : george 1168 Description:
3007 :    
3008 : george 1171 Implemented the Ball-Larus branch prediction-heuristics, and
3009 : george 1168 incorporated graphical viewers for control flow graphs.
3010 :    
3011 : george 1171 Ball-Larus Heuristics:
3012 : george 1168 ---------------------
3013 :     See the file compiler/CodeGen/cpscompile/cpsBranchProb.sml.
3014 :    
3015 :     By design it uses the Dempster-Shafer theory for combining
3016 :     probabilities. For example, in the function:
3017 :    
3018 :     fun f(n,acc) = if n = 0 then acc else f(n-1, n*acc)
3019 :    
3020 :     the ball-larus heuristics predicts that the n=0 is unlikely
3021 :     (OH-heuristic), and the 'then' branch is unlikely because of the
3022 :     RH-heuristic -- giving the 'then' branch an even lower combined
3023 : george 1171 probability using the Dempster-Shafer theory.
3024 : george 1168
3025 :     Finally, John Reppy's loop analysis in MLRISC, further lowers the
3026 :     probability of the 'then' branch because of the loop in the else
3027 :     branch.
3028 :    
3029 :    
3030 :     Graphical Viewing:
3031 :     ------------------
3032 :     I merely plugged in Allen's graphical viewers into the compiler. The
3033 :     additional code is not much. At the top level, saying:
3034 :    
3035 :     Control.MLRISC.getFlag "cfg-graphical-view" := true;
3036 :    
3037 :     will display the graphical view of the control flow graph just before
3038 :     back-patching. daVinci must be in your path for this to work. If
3039 :     daVinci is not available, then the default viewer can be changed
3040 :     using:
3041 :    
3042 :     Control.MLRISC.getString "viewer"
3043 :    
3044 :     which can be set to "dot" or "vcg" for the corresponding viewers. Of
3045 :     course, these viewers must be in your path.
3046 :    
3047 :     The above will display the compilation unit at the level of clusters,
3048 :     many of which are small, boring, and un-interesting. Also setting:
3049 :    
3050 :     Control.MLRISC.getInt "cfg-graphical-view_size"
3051 :    
3052 :     will display clusters that are larger than the value set by the above.
3053 :    
3054 :    
3055 :     ----------------------------------------------------------------------
3056 : blume 1159 Name: Matthias Blume
3057 :     Date: 2002/03/21 22:20:00 EST
3058 :     Tag: blume-20020321-kmp-bugfix
3059 :     Description:
3060 :    
3061 :     Changed the interface to the KMP routine in PreString and fixed
3062 :     a minor bug in one place where it was used.
3063 :    
3064 :     ----------------------------------------------------------------------
3065 : leunga 1156 Name: Allen Leung
3066 : leunga 1158 Date: 2002/03/21 20:30:00 EST
3067 :     Tag: leunga-20020321-cfg
3068 :     Description:
3069 :    
3070 :     Fixed a potential problem in cfg edge splitting.
3071 :    
3072 :     ----------------------------------------------------------------------
3073 :     Name: Allen Leung
3074 : leunga 1156 Date: 2002/03/21 17:15:00 EST
3075 :     Tag: leunga-20020321-x86-fp-cfg
3076 :     Description:
3077 :    
3078 :     1. Recoded the buggy parts of x86-fp.
3079 :    
3080 :     a. All the block reordering code has been removed.
3081 :     We now depend on the block placement phases to do this work.
3082 :    
3083 :     b. Critical edge splitting code has been simplified and moved into the
3084 :     CFG modules, as where they belong.
3085 :    
3086 :     Both of these were quite buggy and complex. The code is now much, much
3087 :     simpler.
3088 :    
3089 :     2. X86 backend.
3090 :    
3091 :     a. Added instructions for 64-bit support. Instruction selection for
3092 :     64-bit has not been committed, however, since that
3093 :     requires changes to MLTREE which haven't been approved by
3094 :     Lal and John.
3095 :    
3096 :     b. Added support for FUCOMI and FUCOMIP when generating code for
3097 :     PentiumPro and above. We only generate these instructions in
3098 :     the fast-fp mode.
3099 :    
3100 :     c. Added cases for JP and JNP in X86FreqProps.
3101 :    
3102 :     3. CFG
3103 :    
3104 :     CFG now has a bunch of methods for edge splitting and merging.
3105 :    
3106 :     4. Machine description.
3107 :    
3108 :     John's simplification of MLTREE_BASIS.fcond broke a few machine
3109 :     description things:
3110 :    
3111 :     rtl-build.{sig,sml} and hppa.mdl fixed.
3112 :    
3113 :     NOTE: the machine description stuff in the repository is still broken.
3114 :     Again, I can't put my fixes in because that involves
3115 :     changes to MLTREE.
3116 :    
3117 :     ----------------------------------------------------------------------
3118 : blume 1145 Name: Matthias Blume
3119 : blume 1155 Date: 2002/03/20 15:55:00 EST
3120 :     Tag: blume-20020320-kmp
3121 :     Description:
3122 :    
3123 :     Implemented Knuth-Morris-Pratt string matching in PreString and used
3124 :     it for String.isSubstring, Substring.isSubstring, and
3125 :     Substring.position.
3126 :    
3127 :     (Might need some stress-testing. Simple examples worked fine.)
3128 :    
3129 :     ----------------------------------------------------------------------
3130 :     Name: Matthias Blume
3131 : blume 1152 Date: 2002/03/19 16:37:00 EST
3132 :     Tag: blume-20020319-witnesses
3133 :     Description:
3134 :    
3135 :     Added a structure C.W and functions convert/Ptr.convert to ml-nlffi-lib.
3136 :    
3137 :     This implements a generic mechanism for changing constness qualifiers
3138 :     anywhere within big C types without resorting to outright "casts".
3139 :     (So far, functions such as C.rw/C.ro or C.Ptr.rw/C.Ptr.ro only let you
3140 :     modify the constness at the outermost level.)
3141 :     The implementation of "convert" is based on the idea of "witness"
3142 :     values -- values that are not used by the operation but whose types
3143 :     "testify" to their applicability. On the implementation side, "convert"
3144 :     is simply a projection (returning its second curried argument). With
3145 :     cross-module inlining, it should not result in any machine code being
3146 :     generated.
3147 :    
3148 :     ----------------------------------------------------------------------
3149 :     Name: Matthias Blume
3150 : blume 1148 Date: 2002/03/15 16:40:00 EST
3151 :     Tag: blume-20020315-basis
3152 :     Description:
3153 :    
3154 :     Provided (preliminary?) implementations for
3155 :    
3156 :     {String,Substring}.{concatWith,isSuffix,isSubstring}
3157 :    
3158 :     and
3159 :    
3160 :     Substring.full
3161 :    
3162 :     Those are in the Basis spec but they were missing in SML/NJ.
3163 :    
3164 :     ----------------------------------------------------------------------
3165 :     Name: Matthias Blume
3166 : blume 1145 Date: 2002/03/14 21:30:00 EST
3167 :     Tag: blume-20020314-controls
3168 :     Description:
3169 :    
3170 :     Controls:
3171 :     ---------
3172 :    
3173 :     1. Factored out the recently-added Controls : CONTROLS stuff and put
3174 :     it into its own library $/controls-lib.cm. The source tree for
3175 :     this is under src/smlnj-lib/Controls.
3176 :    
3177 :     2. Changed the names of types and functions in this interface, so they
3178 :     make a bit more "sense":
3179 :    
3180 :     module -> registry
3181 :     'a registry -> 'a group
3182 :    
3183 :     3. The interface now deals in ref cells only. The getter/setter interface
3184 :     is (mostly) gone.
3185 :    
3186 :     4. Added a function that lets one register an already-existing ref cell.
3187 :    
3188 :     5. Made the corresponding modifications to the rest of the code so that
3189 :     everything compiles again.
3190 :    
3191 :     6. Changed the implementation of Controls.MLRISC back to something closer
3192 :     to the original. In particular, this module (and therefore MLRISC)
3193 :     does not depend on Controls. There now is some link-time code in
3194 :     int-sys.sml that registers the MLRISC controls with the Controls
3195 :     module.
3196 :    
3197 :     CM:
3198 :     ---
3199 :    
3200 :     * One can now specify the lambda-split aggressiveness in init.cmi.
3201 :    
3202 :     ----------------------------------------------------------------------
3203 : leunga 1142 Name: Allen Leung
3204 :     Date: 2002/03/13 17:30:00 EST
3205 :     Tag: leunga-20020313-x86-fp-unary
3206 :     Description:
3207 :    
3208 :     Bug fix for:
3209 :    
3210 :     > leunga@weaselbane:~/Yale/tmp/sml-dist{21} bin/sml
3211 :     > Standard ML of New Jersey v110.39.1 [FLINT v1.5], March 08, 2002
3212 :     > - fun f(x,(y,z)) = Real.~ y;
3213 :     > [autoloading]
3214 :     > [autoloading done]
3215 :     > fchsl (%eax), 184(%esp)
3216 :     > Error: MLRisc bug: X86MCEmitter.emitInstr
3217 :     >
3218 :     > uncaught exception Error
3219 :     > raised at: ../MLRISC/control/mlriscErrormsg.sml:16.14-16.19
3220 :    
3221 :     The problem was that the code generator did not generate any fp registers
3222 :     in this case, and the ra didn't know that it needed to run the X86FP phase to
3223 :     translate the pseudo fp instruction. This only happened with unary fp
3224 :     operators in certain situations.
3225 :    
3226 :     ----------------------------------------------------------------------
3227 : blume 1137 Name: Matthias Blume
3228 : blume 1140 Date: 2002/03/13 14:00:00 EST
3229 :     Tag: blume-20020313-overload-etc
3230 :     Description:
3231 :    
3232 :     1. Added _overload as a synonym for overload for backward compatibility.
3233 :     (Control.overloadKW must be true for either version to be accepted.)
3234 :    
3235 :     2. Fixed bug in install script that caused more things to be installed
3236 :     than what was requested in config/targets.
3237 :    
3238 :     3. Made CM aware of the (_)overload construct so that autoloading
3239 :     works.
3240 :    
3241 :     ----------------------------------------------------------------------
3242 :     Name: Matthias Blume
3243 : blume 1138 Date: 2002/03/12 22:03:00 EST
3244 :     Tag: blume-20020312-url
3245 :     Description:
3246 :    
3247 :     Forgot to update BOOT and srcarchiveurl.
3248 :    
3249 :     ----------------------------------------------------------------------
3250 :     Name: Matthias Blume
3251 : blume 1137 Date: 2002/03/12 17:30:00 EST
3252 :     Tag: blume-20020312-version110392
3253 :     Description:
3254 :    
3255 :     Yet another version number bump (because of small changes to the
3256 :     binfile format). Version number is now 110.39.2. NEW BOOTFILES!
3257 :    
3258 :     Changes:
3259 :    
3260 :     The new pid generation scheme described a few weeks ago was overly
3261 :     complicated. I implemented a new mechanism that is simpler and
3262 :     provides a bit more "stability": Once CM has seen a compilation
3263 :     unit, it keeps its identity constant (as long as you do not delete
3264 :     those crucial CM/GUID/* files). This means that when you change
3265 : blume 1145 an interface, compile, then go back to the old interface, and
3266 : blume 1137 compile again, you arrive at the original pid.
3267 :    
3268 :     There now also is a mechanism that instructs CM to use the plain
3269 :     environment hash as a module's pid (effectively making its GUID
3270 :     the empty string). For this, "noguid" must be specified as an
3271 :     option to the .sml file in question within its .cm file.
3272 :     This is most useful for code that is being generated by tools such
3273 :     as ml-nlffigen (because during development programmers tend to
3274 :     erase the tool's entire output directory tree including CM's cached
3275 :     GUIDs). "noguid" is somewhat dangerous (since it can be used to locally
3276 :     revert to the old, broken behavior of SML/NJ, but in specific cases
3277 :     where there is no danger of interface confusion, its use is ok
3278 :     (I think).
3279 :    
3280 :     ml-nlffigen by default generates "noguid" annotations. They can be
3281 :     turned off by specifying -guid in its command line.
3282 :    
3283 :     ----------------------------------------------------------------------
3284 : george 1136 Name: Lal George
3285 :     Date: 2002/03/12 12 14:42:36 EST
3286 :     Tag: george-20020312-frequency-computation
3287 :     Description:
3288 :    
3289 :     Integrated jump chaining and static block frequency into the
3290 :     compiler. More details and numbers later.
3291 : leunga 1025
3292 : george 1003 ----------------------------------------------------------------------
3293 : george 1133 Name: Lal George
3294 :     Date: 2002/03/11 11 22:38:53 EST
3295 :     Tag: george-20020311-jump-chain-elim
3296 :     Description:
3297 :    
3298 :     Tested the jump chain elimination on all architectures (except the
3299 :     hppa). This is on by default right now and is profitable for the
3300 :     alpha and x86, however, it may not be profitable for the sparc and ppc
3301 :     when compiling the compiler.
3302 :    
3303 :     The gc test will typically jump to a label at the end of the cluster,
3304 :     where there is another jump to an external cluster containing the actual
3305 :     code to invoke gc. This is to allow factoring of common gc invocation
3306 :     sequences. That is to say, we generate:
3307 :    
3308 :     f:
3309 :     testgc
3310 :     ja L1 % jump if above to L1
3311 :    
3312 :     L1:
3313 :     jmp L2
3314 :    
3315 :    
3316 :     After jump chain elimination the 'ja L1' instructions is converted to
3317 :     'ja L2'. On the sparc and ppc, many of the 'ja L2' instructions may end
3318 :     up being implemented in their long form (if L2 is far away) using:
3319 :    
3320 :     jbe L3 % jump if below or equal to L3
3321 :     jmp L2
3322 :     L3:
3323 :     ...
3324 :    
3325 :    
3326 :     For large compilation units L2 may be far away.
3327 :    
3328 :    
3329 :     ----------------------------------------------------------------------
3330 : blume 1132 Name: Matthias Blume
3331 :     Date: 2002/03/11 13:30:00 EST
3332 :     Tag: blume-20020311-mltreeeval
3333 :     Description:
3334 :    
3335 :     A functor parameter was missing.
3336 :    
3337 :     ----------------------------------------------------------------------
3338 : leunga 1130 Name: Allen Leung
3339 : leunga 1131 Date: 2002/03/11 10:30:00 EST
3340 : leunga 1142 Tag: leunga-20020311-runtime-string0
3341 : leunga 1131 Description:
3342 :    
3343 :     The representation of the empty string now points to a
3344 :     legal null terminated C string instead of unit. It is now possible
3345 :     to convert an ML string into C string with InlineT.CharVector.getData.
3346 :     This compiles into one single machine instruction.
3347 :    
3348 :     ----------------------------------------------------------------------
3349 :     Name: Allen Leung
3350 : leunga 1130 Date: 2002/03/10 23:55:00 EST
3351 :     Tag: leunga-20020310-x86-call
3352 :     Description:
3353 :    
3354 :     Added machine generation for CALL instruction (relative displacement mode)
3355 :    
3356 :     ----------------------------------------------------------------------
3357 : blume 1128 Name: Matthias Blume
3358 :     Date: 2002/03/08 16:05:00
3359 :     Tag: blume-20020308-entrypoints
3360 :     Description:
3361 :    
3362 :     Version number bumped to 110.39.1. NEW BOOTFILES!
3363 :    
3364 :     Entrypoints: non-zero offset into a code object where execution should begin.
3365 :    
3366 :     - Added the notion of an entrypoint to CodeObj.
3367 :     - Added reading/writing of entrypoint info to Binfile.
3368 :     - Made runtime system bootloader aware of entrypoints.
3369 :     - Use the address of the label of the first function given to mlriscGen
3370 :     as the entrypoint. This address is currently always 0, but it will
3371 :     not be 0 once we turn on block placement.
3372 :     - Removed the linkage cluster code (which was The Other Way(tm) of dealing
3373 :     with entry points) from mlriscGen.
3374 :    
3375 :     ----------------------------------------------------------------------
3376 : leunga 1127 Name: Allen Leung
3377 :     Date: 2002/03/07 20:45:00 EST
3378 :     Tag: leunga-20020307-x86-cmov
3379 :     Description:
3380 :    
3381 :     Bug fixes for CMOVcc on x86.
3382 :    
3383 :     1. Added machine code generation for CMOVcc
3384 :     2. CMOVcc is now generated in preference over SETcc on PentiumPro or above.
3385 :     3. CMOVcc cannot have an immediate operand as argument.
3386 :    
3387 :     ----------------------------------------------------------------------
3388 : blume 1126 Name: Matthias Blume
3389 :     Date: 2002/03/07 16:15:00 EST
3390 :     Tag: blume-20020307-controls
3391 :     Description:
3392 :    
3393 :     This is a very large but mostly boring patch which makes (almost)
3394 :     every tuneable compiler knob (i.e., pretty much everything under
3395 :     Control.* plus a few other things) configurable via both the command
3396 :     line and environment variables in the style CM did its configuration
3397 :     until now.
3398 :    
3399 :     Try starting sml with '-h' (or, if you are brave, '-H')
3400 :    
3401 :     To this end, I added a structure Controls : CONTROLS to smlnj-lib.cm which
3402 :     implements the underlying generic mechanism.
3403 :    
3404 :     The interface to some of the existing such facilities has changed somewhat.
3405 :     For example, the MLRiscControl module now provides mkFoo instead of getFoo.
3406 :     (The getFoo interface is still there for backward-compatibility, but its
3407 :     use is deprecated.)
3408 :    
3409 :     The ml-build script passes -Cxxx=yyy command-line arguments through so
3410 :     that one can now twiddle the compiler settings when using this "batch"
3411 :     compiler.
3412 :    
3413 :     TODO items:
3414 :    
3415 :     We should go through and throw out all controls that are no longer
3416 :     connected to anything. Moreover, we should go through and provide
3417 :     meaningful (and correct!) documentation strings for those controls
3418 :     that still are connected.
3419 :    
3420 :     Currently, multiple calls to Controls.new are accepted (only the first
3421 :     has any effect). Eventually we should make sure that every control
3422 :     is being made (via Controls.new) exactly once. Future access can then
3423 :     be done using Controls.acc.
3424 :    
3425 :     Finally, it would probably be a good idea to use the getter-setter
3426 :     interface to controls rather than ref cells. For the time being, both
3427 :     styles are provided by the Controls module, but getter-setter pairs are
3428 :     better if thread-safety is of any concern because they can be wrapped.
3429 :    
3430 :     *****************************************
3431 :    
3432 :     One bug fix: The function blockPlacement in three of the MLRISC
3433 :     backpatch files used to be hard-wired to one of two possibilities at
3434 :     link time (according to the value of the placementFlag). But (I
3435 :     think) it should rather sense the flag every time.
3436 :    
3437 :     *****************************************
3438 :    
3439 :     Other assorted changes (by other people who did not supply a HISTORY entry):
3440 :    
3441 :     1. the cross-module inliner now works much better (Monnier)
3442 :     2. representation of weights, frequencies, and probabilities in MLRISC
3443 :     changed in preparation of using those for weighted block placement
3444 :     (Reppy, George)
3445 :    
3446 :     ----------------------------------------------------------------------
3447 : george 1116 Name: Lal George
3448 : george 1124 Date: 2002/03/07 14:44:24 EST 2002
3449 :     Tag: george-20020307-weighted-block-placement
3450 :    
3451 :     Tested the weighted block placement optimization on all architectures
3452 :     (except the hppa) using AMPL to generate the block and edge frequencies.
3453 :     Changes were required in the machine properties to correctly
3454 :     categorize trap instructions. There is an MLRISC flag
3455 :     "weighted-block-placement" that can be used to enable weighted block
3456 :     placement, but this will be ineffective without block/edge
3457 :     frequencies (coming soon).
3458 :    
3459 :    
3460 :     ----------------------------------------------------------------------
3461 :     Name: Lal George
3462 : george 1116 Date: 2002/03/05 17:24:48 EST
3463 :     Tag: george-20020305-linkage-cluster
3464 :    
3465 : george 1124 In order to support the block placement optimization, a new cluster
3466 :     is generated as the very first cluster (called the linkage cluster).
3467 :     It contains a single jump to the 'real' entry point for the compilation
3468 :     unit. Block placement has no effect on the linkage cluster itself, but
3469 :     all the other clusters have full freedom in the manner in which they
3470 :     reorder blocks or functions.
3471 : george 1116
3472 :     On the x86 the typical linkage code that is generated is:
3473 :     ----------------------
3474 :     .align 2
3475 :     L0:
3476 :     addl $L1-L0, 72(%esp)
3477 : george 1124 jmp L1
3478 : george 1116
3479 :    
3480 :     .align 2
3481 :     L1:
3482 :     ----------------------
3483 :    
3484 :     72(%esp) is the memory location for the stdlink register. This
3485 :     must contain the address of the CPS function being called. In the
3486 : george 1124 above example, it contains the address of L0; before
3487 : george 1116 calling L1 (the real entry point for the compilation unit), it
3488 :     must contain the address for L1, and hence
3489 :    
3490 :     addl $L1-L0, 72(%esp)
3491 :    
3492 : george 1124 I have tested this on all architectures except the hppa.The increase
3493 :     in code size is of course negligible
3494 : george 1116
3495 :     ----------------------------------------------------------------------
3496 : leunga 1115 Name: Allen Leung
3497 :     Date: 2002/03/03 13:20:00 EST
3498 :     Tag: leunga-20020303-mlrisc-tools
3499 :    
3500 :     Added #[ ... ] expressions to mlrisc tools
3501 :    
3502 :     ----------------------------------------------------------------------
3503 : blume 1096 Name: Matthias Blume
3504 : blume 1098 Date: 2002/02/27 12:29:00 EST
3505 :     Tag: blume-20020227-cdebug
3506 :     Description:
3507 :    
3508 :     - made types in structure C and C_Debug to be equal
3509 :     - got rid of code duplication (c-int.sml vs. c-int-debug.sml)
3510 :     - there no longer is a C_Int_Debug (C_Debug is directly derived from C)
3511 :    
3512 :     ----------------------------------------------------------------------
3513 :     Name: Matthias Blume
3514 : blume 1096 Date: 2002/02/26 12:00:00 EST
3515 :     Tag: blume-20020226-ffi
3516 :     Description:
3517 :    
3518 :     1. Fixed a minor bug in CM's "noweb" tool:
3519 :     If numbering is turned off, then truly don't number (i.e., do not
3520 :     supply the -L option to noweb). The previous behavior was to supply
3521 :     -L'' -- which caused noweb to use the "default" line numbering scheme.
3522 :     Thanks to Chris Richards for pointing this out (and supplying the fix).
3523 :    
3524 :     2. Once again, I reworked some aspects of the FFI:
3525 :    
3526 :     A. The incomplete/complete type business:
3527 :    
3528 :     - Signatures POINTER_TO_INCOMPLETE_TYPE and accompanying functors are
3529 :     gone!
3530 :     - ML types representing an incomplete type are now *equal* to
3531 :     ML types representing their corresponding complete types (just like
3532 :     in C). This is still safe because ml-nlffigen will not generate
3533 :     RTTI for incomplete types, nor will it generate functions that
3534 :     require access to such RTTI. But when ML code generated from both
3535 :     incomplete and complete versions of the C type meet, the ML types
3536 :     are trivially interoperable.
3537 :    
3538 :     NOTE: These changes restore the full generality of the translation
3539 :     (which was previously lost when I eliminated functorization)!
3540 :    
3541 :     B. Enum types:
3542 :    
3543 :     - Structure C now has a type constructor "enum" that is similar to
3544 :     how the "su" constructor works. However, "enum" is not a phantom
3545 :     type because each "T enum" has values (and is isomorphic to
3546 :     MLRep.Signed.int).
3547 :     - There are generic access operations for enum objects (using
3548 :     MLRep.Signed.int).
3549 :     - ml-nlffigen will generate a structure E_foo for each "enum foo".
3550 :     * The structure contains the definition of type "mlrep" (the ML-side
3551 :     representation type of the enum). Normally, mlrep is the same
3552 :     as "MLRep.Signed.int", but if ml-nlffigen was invoked with "-ec",
3553 :     then mlrep will be defined as a datatype -- thus facilitating
3554 :     pattern matching on mlrep values.
3555 :     ("-ec" will be suppressed if there are duplicate values in an
3556 :     enumeration.)
3557 :     * Constructors ("-ec") or values (no "-ec") e_xxx of type mlrep
3558 :     will be generated for each C enum constant xxx.
3559 :     * Conversion functions m2i and i2m convert between mlrep and
3560 :     MLRep.Signed.int. (Without "-ec", these functions are identities.)
3561 :     * Coversion functions c and ml convert between mlrep and "tag enum".
3562 :     * Access functions (get/set) fetch and store mlrep values.
3563 :     - By default (unless ml-nlffigen was invoked with "-nocollect"), unnamed
3564 :     enumerations are merged into one single enumeration represented by
3565 :     structure E_'.
3566 :    
3567 :     ----------------------------------------------------------------------
3568 : leunga 1080 Name: Allen Leung
3569 : leunga 1094 Date: 2002/02/25 04:45:00 EST
3570 :     Tag: leunga-20020225-cps-spill
3571 :    
3572 :     This is a new implementation of the CPS spill phase.
3573 :     The new phase is in the new file compiler/CodeGen/cpscompile/spill-new.sml
3574 :     In case of problems, replace it with the old file spill.sml
3575 :    
3576 :     The current compiler runs into some serious performance problems when
3577 :     constructing a large record. This can happen when we try to compile a
3578 :     structure with many items. Even a very simple structure like the following
3579 :     makes the compiler slow down.
3580 :    
3581 :     structure Foo = struct
3582 :     val x_1 = 0w1 : Word32.int
3583 :     val x_2 = 0w2 : Word32.int
3584 :     val x_3 = 0w3 : Word32.int
3585 :     ...
3586 :     val x_N = 0wN : Word32.int
3587 :     end
3588 :    
3589 :     The following table shows the compile time, from N=1000 to N=4000,
3590 :     with the old compiler:
3591 :    
3592 :     N
3593 :     1000 CPS 100 spill 0.04u 0.00s 0.00g
3594 :     MLRISC ra 0.06u 0.00s 0.05g
3595 :     (spills = 0 reloads = 0)
3596 :     TOTAL 0.63u 0.07s 0.21g
3597 :    
3598 :     1100 CPS 100 spill 8.25u 0.32s 0.64g
3599 :     MLRISC ra 5.68u 0.59s 3.93g
3600 :     (spills = 0 reloads = 0)
3601 :     TOTAL 14.71u 0.99s 4.81g
3602 :    
3603 :     1500 CPS 100 spill 58.55u 2.34s 1.74g
3604 :     MLRISC ra 5.54u 0.65s 3.91g
3605 :     (spills = 543 reloads = 1082)
3606 :     TOTAL 65.40u 3.13s 6.00g
3607 :    
3608 :     2000 CPS 100 spill 126.69u 4.84s 3.08g
3609 :     MLRISC ra 0.80u 0.10s 0.55g
3610 :     (spills = 42 reloads = 84)
3611 :     TOTAL 129.42u 5.10s 4.13g
3612 :    
3613 :     3000 CPS 100 spill 675.59u 19.03s 11.64g
3614 :     MLRISC ra 2.69u 0.27s 1.38g
3615 :     (spills = 62 reloads = 124)
3616 :     TOTAL 682.48u 19.61s 13.99g
3617 :    
3618 :     4000 CPS 100 spill 2362.82u 56.28s 43.60g
3619 :     MLRISC ra 4.96u 0.27s 2.72g
3620 :     (spills = 85 reloads = 170)
3621 :     TOTAL 2375.26u 57.21s 48.00g
3622 :    
3623 :     As you can see the old cps spill module suffers from some serious
3624 : leunga 1115 performance problem. But since I cannot decipher the old code fully,
3625 :     instead of patching the problems up, I'm reimplementing it
3626 : leunga 1094 with a different algorithm. The new code is more modular,
3627 :     smaller when compiled, and substantially faster
3628 :     (O(n log n) time and O(n) space). Timing of the new spill module:
3629 :    
3630 :     4000 CPS 100 spill 0.02u 0.00s 0.00g
3631 :     MLRISC ra 0.25u 0.02s 0.15g
3632 :     (spills=1 reloads=3)
3633 :     TOTAL 7.74u 0.34s 1.62g
3634 :    
3635 :     Implementation details:
3636 :    
3637 :     As far as I can tell, the purpose of the CPS spill module is to make sure the
3638 :     number of live variables at any program point (the bandwidth)
3639 :     does not exceed a certain limit, which is determined by the
3640 :     size of the spill area.
3641 :    
3642 :     When the bandwidth is too large, we decrease the register pressure by
3643 :     packing live variables into spill records. How we achieve this is
3644 :     completely different than what we did in the old code.
3645 :    
3646 :     First, there is something about the MLRiscGen code generator
3647 :     that we should be aware of:
3648 :    
3649 :     o MLRiscGen performs code motion!
3650 :    
3651 :     In particular, it will move floating point computations and
3652 :     address computations involving only the heap pointer to
3653 :     their use sites (if there is only a single use).
3654 :     What this means is that if we have a CPS record construction
3655 :     statement
3656 :    
3657 :     RECORD(k,vl,w,e)
3658 :    
3659 :     we should never count the new record address w as live if w
3660 :     has only one use (which is often the case).
3661 :    
3662 :     We should do something similar to floating point, but the transformation
3663 :     there is much more complex, so I won't deal with that.
3664 :    
3665 :     Secondly, there are now two new cps primops at our disposal:
3666 :    
3667 :     1. rawrecord of record_kind option
3668 :     This pure operator allocates some uninitialized storage from the heap.
3669 :     There are two forms:
3670 :    
3671 :     rawrecord NONE [INT n] allocates a tagless record of length n
3672 :     rawrecord (SOME rk) [INT n] allocates a tagged record of length n
3673 :     and initializes the tag.
3674 :    
3675 :     2. rawupdate of cty
3676 :     rawupdate cty (v,i,x)
3677 :     Assigns to x to the ith component of record v.
3678 :     The storelist is not updated.
3679 :    
3680 :     We use these new primops for both spilling and increment record construction.
3681 :    
3682 :     1. Spilling.
3683 :    
3684 :     This is implemented with a linear scan algorithm (but generalized
3685 :     to trees). The algorithm will create a single spill record at the
3686 :     beginning of the cps function and use rawupdate to spill to it,
3687 :     and SELECT or SELp to reload from it. So both spills and reloads
3688 :     are fine-grain operations. In contrast, in the old algorithm
3689 :     "spills" have to be bundled together in records.
3690 :    
3691 :     Ideally, we should sink the spill record construction to where
3692 :     it is needed. We can even split the spill record into multiple ones
3693 :     at the places where they are needed. But CPS is not a good
3694 :     representation for global code motion, so I'll keep it simple and
3695 :     am not attempting this.
3696 :    
3697 :     2. Incremental record construction (aka record splitting).
3698 :    
3699 :     Long records with many component values which are simulatenously live
3700 :     (recall that single use record addresses are not considered to
3701 :     be live) are constructed with rawrecord and rawupdate.
3702 :     We allocate space on the heap with rawrecord first, then gradually
3703 :     fill it in with rawupdate. This is the technique suggested to me
3704 :     by Matthias.
3705 :    
3706 :     Some restrictions on when this is applicable:
3707 :     1. It is not a VECTOR record. The code generator currently does not handle
3708 :     this case. VECTOR record uses double indirection like arrays.
3709 :     2. All the record component values are defined in the same "basic block"
3710 :     as the record constructor. This is to prevent speculative
3711 :     record construction.
3712 :    
3713 :     ----------------------------------------------------------------------
3714 :     Name: Allen Leung
3715 : leunga 1086 Date: 2002/02/22 01:02:00 EST
3716 :     Tag: leunga-20020222-mlrisc-tools
3717 :    
3718 :     Minor bug fixes in the parser and rewriter
3719 :    
3720 :     ----------------------------------------------------------------------
3721 :     Name: Allen Leung
3722 : leunga 1085 Date: 2002/02/21 20:20:00 EST
3723 :     Tag: leunga-20020221-peephole
3724 :    
3725 :     Regenerated the peephole files. Some contained typos in the specification
3726 :     and some didn't compile because of pretty printing bugs in the old version
3727 :     of 'nowhere'.
3728 :    
3729 :     ----------------------------------------------------------------------
3730 :     Name: Allen Leung
3731 : leunga 1079 Date: 2002/02/19 20:20:00 EST
3732 :     Tag: leunga-20020219-mlrisc-tools
3733 :     Description:
3734 :    
3735 :     Minor bug fixes to the mlrisc-tools library:
3736 :    
3737 :     1. Fixed up parsing colon suffixed keywords
3738 :     2. Added the ability to shut the error messages up
3739 :     3. Reimplemented the pretty printer and fixed up/improved
3740 :     the pretty printing of handle and -> types.
3741 :     4. Fixed up generation of literal symbols in the nowhere tool.
3742 :     5. Added some SML keywords to to sml.sty
3743 :    
3744 :     ----------------------------------------------------------------------
3745 :     Name: Matthias Blume
3746 : blume 1078 Date: 2002/02/19 16:20:00 EST
3747 :     Tag: blume-20020219-cmffi
3748 :     Description:
3749 :    
3750 :     A wild mix of changes, some minor, some major:
3751 :    
3752 :     * All C FFI-related libraries are now anchored under $c:
3753 :     $/c.cm --> $c/c.cm
3754 :     $/c-int.cm --> $c/internals/c-int.cm
3755 :     $/memory.cm --> $c/memory/memory.cm
3756 :    
3757 :     * "make" tool (in CM) now treats its argument pathname slightly
3758 :     differently:
3759 :     1. If the native expansion is an absolute name, then before invoking
3760 :     the "make" command on it, CM will apply OS.Path.mkRelative
3761 :     (with relativeTo = OS.FileSys.getDir()) to it.
3762 :     2. The argument will be passed through to subsequent phases of CM
3763 :     processing without "going native". In particular, if the argument
3764 :     was an anchored path, then "make" will not lose track of that anchor.
3765 :    
3766 :     * Compiler backends now "know" their respective C calling conventions
3767 :     instead of having to be told about it by ml-nlffigen. This relieves
3768 :     ml-nlffigen from one of its burdens.
3769 :    
3770 :     * The X86Backend has been split into X86CCallBackend and X86StdCallBackend.
3771 :    
3772 :     * Export C_DEBUG and C_Debug from $c/c.cm.
3773 :    
3774 :     * C type encoding in ml-nlffi-lib has been improved to model the conceptual
3775 :     subtyping relationship between incomplete pointers and their complete
3776 :     counterparts. For this, ('t, 'c) ptr has been changed to 'o ptr --
3777 :     with the convention of instantiating 'o with ('t, 'c) obj whenever
3778 :     the pointer target type is complete. In the incomplete case, 'o
3779 :     will be instantiated with some "'c iobj" -- a type obtained by
3780 :     using one of the functors PointerToIncompleteType or PointerToCompleteType.
3781 :    
3782 :     Operations that work on both incomplete and complete pointer types are
3783 :     typed as taking an 'o ptr while operations that require the target to
3784 :     be known are typed as taking some ('t, 'c) obj ptr.
3785 :    
3786 :     voidptr is now a bit "more concrete", namely "type voidptr = void ptr'"
3787 :     where void is an eqtype without any values. This makes it possible
3788 :     to work on voidptr values using functions meant to operate on light
3789 :     incomplete pointers.
3790 :    
3791 :     * As a result of the above, signature POINTER_TO_INCOMPLETE_TYPE has
3792 :     been vastly simplified.
3793 :    
3794 :     ----------------------------------------------------------------------
3795 :     Name: Matthias Blume
3796 : blume 1076 Date: 2002/02/19 10:48:00 EST
3797 :     Tag: blume-20020219-pqfix
3798 :     Description:
3799 :    
3800 :     Applied Chris Okasaki's bug fix for priority queues.
3801 :    
3802 :     ----------------------------------------------------------------------
3803 :     Name: Matthias Blume
3804 : blume 1073 Date: 2002/02/15 17:05:00
3805 : blume 1069 Tag: Release_110_39
3806 :     Description:
3807 :    
3808 : blume 1073 Last-minute retagging is becoming a tradition... :-(
3809 :    
3810 :     This is the working release 110.39.
3811 :    
3812 :     ----------------------------------------------------------------------
3813 :     Name: Matthias Blume
3814 :     Date: 2002/02/15 16:00:00 EST
3815 :     Tag: Release_110_39-orig
3816 :     Description:
3817 :    
3818 : blume 1069 Working release 110.39. New bootfiles.
3819 :    
3820 : blume 1073 (Update: There was a small bug in the installer so it wouldn't work
3821 :     with all shells. So I retagged. -Matthias)
3822 :    
3823 : blume 1069 ----------------------------------------------------------------------
3824 :     Name: Matthias Blume
3825 : blume 1068 Date: 2002/02/15 14:17:00 EST
3826 :     Tag: blume-20020215-showbindings
3827 :     Description:
3828 :    
3829 :     Added EnvRef.listBoundSymbols and CM.State.showBindings. Especially
3830 :     the latter can be useful for exploring what bindings are available at
3831 :     the interactive prompt. (The first function returns only the list
3832 :     of symbols that are really bound, the second prints those but also the
3833 :     ones that CM's autoloading mechanism knows about.)
3834 :    
3835 :     ----------------------------------------------------------------------
3836 :     Name: Matthias Blume
3837 : blume 1067 Date: 2002/02/15 12:08:00 EST
3838 :     Tag: blume-20020215-iptrs
3839 :     Description:
3840 :    
3841 :     Two improvements to ml-nlffigen:
3842 :    
3843 :     1. Write files only if they do not exist or if their current contents
3844 :     do not coincide with what's being written. (That is, avoid messing
3845 :     with the time stamps unless absolutely necessary.)
3846 :    
3847 :     2. Implement a "repository" mechanism for generated files related
3848 :     to "incomplete pointer types". See the README file for details.
3849 :    
3850 :     ----------------------------------------------------------------------
3851 :     Name: Matthias Blume
3852 : blume 1066 Date: 2002/02/14 11:50:00 EST
3853 :     Tag: blume-20020214-quote
3854 :     Description:
3855 :    
3856 :     Added a type 't t_' to tag.sml (in ml-nlffi-lib.cm). This is required
3857 :     because of the new and improved tag generation scheme. (Thanks to Allen
3858 :     Leung for pointing it out.)
3859 :    
3860 :     ----------------------------------------------------------------------
3861 : george 1065 Name: Lal George
3862 :     Date: 2002/02/14 09:55:27 EST 2002
3863 :     Tag: george-20020214-isabelle-bug
3864 :     Description:
3865 :    
3866 :     Fixed the MLRISC bug sent by Markus Wenzel regarding the compilation
3867 :     of Isabelle on the x86.
3868 :    
3869 :     From Allen:
3870 :     -----------
3871 :     I've found the problem:
3872 :    
3873 :     in ra-core.sml, I use the counter "blocked" to keep track of the
3874 :     true number of elements in the freeze queue. When the counter goes
3875 :     to zero, I skip examining the queue. But I've messed up the
3876 :     bookkeeping in combine():
3877 :    
3878 :     else ();
3879 :     case !ucol of
3880 :     PSEUDO => (if !cntv > 0 then
3881 :     (if !cntu > 0 then blocked := !blocked - 1 else ();
3882 :     ^^^^^^^^^^^^^^^^^^^^^^^
3883 :     moveu := mergeMoveList(!movev, !moveu)
3884 :     )
3885 :     else ();
3886 :    
3887 :     combine() is called to coalesce two nodes u and v.
3888 :     I think I was thinking that if the move counts of u and v are both
3889 :     greater than zero then after they are coalesced then one node is
3890 :     removed from the freeze queue. Apparently I was thinking that
3891 :     both u and v are of low degree, but that's clearly not necessarily true.
3892 :    
3893 :    
3894 :     02/12/2002:
3895 :     Here's the patch. HOL now compiles.
3896 :    
3897 :     I don't know how this impact on performance (compile
3898 :     time or runtime). This bug caused the RA (especially on the x86)
3899 :     to go thru the potential spill phase when there are still nodes on the
3900 :     freeze queue.
3901 :    
3902 :    
3903 :    
3904 :    
3905 :     ----------------------------------------------------------------------
3906 : blume 1058 Name: Matthias Blume
3907 : blume 1064 Date: 2002/02/13 22:40:00 EST
3908 :     Tag: blume-20020213-fptr-rtti
3909 :     Description:
3910 :    
3911 :     Fixed a bug in ml-nlffigen that was introduced with one of the previous
3912 :     updates.
3913 :    
3914 :     ----------------------------------------------------------------------
3915 :     Name: Matthias Blume
3916 : blume 1063 Date: 2002/02/13 16:41:00 EST
3917 :     Tag: blume-20020213-cmlpq
3918 :     Description:
3919 :    
3920 :     Added new priority queue export symbols (which have just been added to
3921 :     smlnj-lib.cm) to CML's version of smlnj-lib.cm. (Otherwise CML would
3922 :     not compile and the installer would choke.)
3923 :    
3924 :     ----------------------------------------------------------------------
3925 :     Name: Matthias Blume
3926 : blume 1062 Date: 2002/02/13 16:15:00 EST
3927 :     Tag: blume-20020213-various
3928 :     Description:
3929 :    
3930 :     1. More tweaks to ml-nlffigen:
3931 :    
3932 :     - better internal datastructures (resulting in slight speedup)
3933 :     - "-match" option requires exact match
3934 :     - "localized" gensym counters (untagged structs/unions nested within
3935 :     other structs/unions or within typedefs get a fresh counter; their
3936 :     tag will be prefixed by a concatenation of their parents' tags)
3937 :     - bug fixes (related to calculation of transitive closure of types
3938 :     to be included in the output)
3939 :    
3940 :     2. Minor Basis updates:
3941 :    
3942 :     - added implementations for List.collate and Option.app
3943 :    
3944 :     ----------------------------------------------------------------------
3945 :     Name: Matthias Blume
3946 : blume 1060 Date: 2002/02/11 15:55:00 EST
3947 :     Tag: blume-20020211-gensym
3948 :     Description:
3949 :    
3950 :     Added a "-gensym" option to command line of ml-nlffigen. This can be
3951 :     used to specify a "stem" -- a string that is inserted in all "gensym'd"
3952 :     names (ML structure names that correspond to unnamed C structs, unions,
3953 :     and enums), so that separate runs of ml-nlffigen do not clash.
3954 :    
3955 :     ----------------------------------------------------------------------
3956 :     Name: Matthias Blume
3957 : blume 1059 Date: 2002/02/11 12:05:00 EST
3958 :     Tag: blume-20020211-gensml
3959 :     Description:
3960 :    
3961 :     A quick fix for a problem with GenSML (in the pgraph-util library):
3962 :     Make generation of toplevel "local" optional. (Strictly speaking,
3963 :     signature definitions within "local" are not legal SML.)
3964 :    
3965 :     Other than that: updates to INSTALL and cm/TODO.
3966 :    
3967 :     ----------------------------------------------------------------------
3968 :     Name: Matthias Blume
3969 : blume 1058 Date: 2002/02/08 15:00:00 EST
3970 :     Tag: blume-20020208-uniquepid
3971 :     Description:
3972 :    
3973 :     0. Version number has been bumped to 110.38.1. NEW BOOTFILES!!!
3974 :    
3975 :     1. The installer (config/install.sh) has gotten smarter:
3976 :    
3977 :     - Configuration options are a bit easier to specify now
3978 :     (in config/targets).
3979 :     - Bug in recognizing .tar.bz2 files fixed.
3980 :     - Installer automatically resolves dependencies between
3981 :     configuration options (e.g., if you ask for eXene, you will
3982 :     also get cml -- regardless whether you asked for it or not).
3983 :     - Installer can run in "quieter mode" by setting the environment
3984 :     variable INSTALL_QUIETLY to "true". "Quieter" does not mean
3985 :     "completely silent", though.
3986 :     - Build HashCons library as part of smlnj-lib.
3987 :    
3988 :     2. A new scheme for assigning persistent identifiers to compilation
3989 :     units (and, by extension, to types etc.) has been put into place.
3990 :     This fixes a long-standing bug where types and even dynamic values
3991 :     can get internally confused, thereby compromising type safety
3992 :     (abstraction) and dynamic correctness. See
3993 :    
3994 :     http://cm.bell-labs.com/cm/cs/who/blume/pid-confusion.tgz
3995 :    
3996 :     for an example of how things could go wrong until now.
3997 :    
3998 :     The downside of the new scheme is that pids are not quite as
3999 :     persistent as they used to be: CM will generate a fresh pid
4000 :     for every compilation unit that it thinks it sees for the first
4001 :     time. That means that if you compile starting from a clean, fresh
4002 :     source tree at two different times, you end up with different
4003 :     binaries.
4004 :    
4005 :     Cutoff recompilation, however, has not been compromised because
4006 :     CM keeps pid information in special caches between runs.
4007 :    
4008 :     ----------------------------------------------------------------------
4009 : george 1053 Name: Lal George
4010 : george 1055 Date: 2002/02/07 15:34:13 EST 2002
4011 :     Tag: <none>
4012 :     Description:
4013 :    
4014 :     Compilers that generate assembly code may produce global labels
4015 :     whose value is resolved at link time. The various peephole optimization
4016 :     modules did not take this in account.
4017 :    
4018 :     TODO. The Labels.addrOf function should really return an option
4019 :     type so that clients are forced to deal with this issue, rather
4020 :     than an exception being raised.
4021 :    
4022 :     ----------------------------------------------------------------------
4023 :     Name: Lal George
4024 : george 1053 Date: 2002/02/06 13:55:02 EST
4025 :     Tag: george-20020206-ra-breakup
4026 :     Description:
4027 :    
4028 :     1. A bug fix from Allen.
4029 :    
4030 :     A typo causes extra fstp %st(0)'s to be generated at compensation
4031 :     edges, which might cause stack underflow traps at runtime. This
4032 :     occurs in fft where there are extraneous fstps right before the 'into'
4033 :     trap instruction (in this case they are harmless since none of the
4034 :     integers overflow.)
4035 :    
4036 : george 1054 2. Pulled out various utility modules that were embedded in the modules
4037 : george 1053 of the register allocator. I need these modules for other purposes, but
4038 : george 1054 they are not complete enough to put into a library (just yet).
4039 : george 1053 ----------------------------------------------------------------------
4040 : blume 1049 Name: Matthias Blume
4041 :     Date: 2002/01/31 16:05:00 EST
4042 :     Tag: blume-20020131-sparc-ccalls
4043 :     Description:
4044 :    
4045 :     1. C-calls on Sparc needlessly allocated a huge chunk (96 bytes)
4046 :     of extra stack space by mistake. Fixed.
4047 :    
4048 :     2. Bug in logic of handling of command-line options in ml-nlffigen fixed.
4049 :    
4050 :     ----------------------------------------------------------------------
4051 : leunga 1048 Name: Allen Leung
4052 :     Date: 2002/01/30
4053 :     Tag: leunga-20020130-nowhere-bug-fix
4054 :     Description:
4055 :    
4056 :     MLRISC bug fixes:
4057 :     1. Fixed a bindings computation bug in the 'nowhere' program generator tool.
4058 :     2. MachineInt.fromString was negating its value.
4059 :    
4060 :     ----------------------------------------------------------------------
4061 : blume 1039 Name: Matthias Blume
4062 : blume 1047 Date: 2002/01/29
4063 :     Tag: blume-20020129-INSTALL
4064 :     Description:
4065 :    
4066 :     - Added somewhat detailed installation instructions (file INSTALL).
4067 :     - Fixed curl-detection bug in config/install.sh.
4068 :     - It is now possible to select the URL getter using the URLGETTER
4069 :     environment variable:
4070 :    
4071 :     not set / "unknown" --> automatic detection (script tries wget,
4072 :     curl, and lynx)
4073 :     "wget" / "curl" / "lynx" --> use the specified program (script "knows"
4074 :     how to properly invoke them)
4075 :     other --> use $URLGETTER directly, it must take
4076 :     precisely two command-line arguments
4077 :     (source URL and destination file name)
4078 :    
4079 :     ----------------------------------------------------------------------
4080 :     Name: Matthias Blume
4081 : blume 1044 Date: 2002/01/28
4082 : blume 1045 Tag: blume-20020128-sparc-ccalls
4083 :     Description:
4084 :    
4085 :     - Fixed problem with calculation of "used" registers in sparc-c-calls.
4086 :     - Make use of the allocParam argument in sparc-c-calls.
4087 :    
4088 :     ----------------------------------------------------------------------
4089 :     Name: Matthias Blume
4090 :     Date: 2002/01/28
4091 : blume 1044 Tag: blume-20020128-allocParam
4092 :     Description:
4093 :    
4094 :     John Reppy: Changes c-calls API to accept client-callback for
4095 :     allocating extra stack space.
4096 :     me: Corresponding changes to mlriscGen (using a dummy argument that
4097 :     does not change the current behavior).
4098 :    
4099 :     ----------------------------------------------------------------------
4100 :     Name: Matthias Blume
4101 : blume 1040 Date: 2002/01/28 12:00:00
4102 :     Tag: Release_110_38
4103 :     Description:
4104 :    
4105 :     This time for real!!!
4106 :    
4107 :     ----------------------------------------------------------------------
4108 :     Name: Matthias Blume
4109 : blume 1039 Date: 2002/01/28 10:56:00 EST
4110 :     Tag: blume-20020128-retraction
4111 :     Description:
4112 :    
4113 :     0. Retracted earlier 110.38. (The Release_110_38 tag has been replaced
4114 :     with blume-Release_110_38-retracted.)
4115 :    
4116 :     1. Fixed a problem with incorrect rounding modes in real64.sml.
4117 :     (Thanks to Andrew Mccreight <andrew.mccreight@yale.edu>.)
4118 :    
4119 :     2. A bug in ml-nlffigen related to the handling of unnamed structs, unions,
4120 :     and enums fixed. The naming of corresponding ML identifiers should
4121 :     now be consistent again.
4122 :    
4123 :     ----------------------------------------------------------------------
4124 : leunga 1038 Name: Allen Leung
4125 :     Date: 2002/01/27
4126 :     Tag: leunga-20020127-nowhere
4127 :     Description:
4128 :    
4129 :     Added a target called nowhere in the configuration scripts.
4130 :     Enabling this will build the MLRISC 'nowhere' tool (for translating
4131 :     programs with where-clauses into legal SML code) during installation.
4132 :    
4133 :     ----------------------------------------------------------------------
4134 : blume 1036 Name: Matthias Blume
4135 : leunga 1038 Date: 2002/01/25 21:27:00 EST
4136 : blume 1039 Tag: blume-Release_110_38-retracted
4137 : blume 1037 Description:
4138 :    
4139 :     Call it a (working) release! Version is 110.38. Bootfiles are ready.
4140 :    
4141 :     README will be added later.
4142 :    
4143 : blume 1039 !!! NOTE: Re-tagged as blume-Release_110_38-retracted. Original tag
4144 :     (Release_110_38) removed. Reason: Last-minute bug fixes.
4145 :    
4146 : blume 1037 ----------------------------------------------------------------------
4147 :     Name: Matthias Blume
4148 : blume 1036 Date: 2002/01/25
4149 :     Tag: blume-20020125-ffi
4150 :     Description:
4151 :    
4152 :     A large number of tweaks and improvements to ml-nlffi-lib and
4153 :     ml-nlffigen:
4154 :    
4155 :     - ML represenation types have been streamlined
4156 :     - getter and setter functions work with concrete values, not abstract
4157 :     ones where possible
4158 :     - ml-nlffigen command line more flexible (see README file there)
4159 :     - some bugs have been fixed (hopefully)
4160 :    
4161 :     ----------------------------------------------------------------------
4162 : george 1034 Name: Lal George
4163 :     Date: 2002/01/24
4164 :     Tag: george-20020124-risc-ra-interface
4165 :     Description:
4166 :    
4167 :     There is a dramatic simplification in the interface to the
4168 :     register allocator for RISC architectures as a result of making
4169 :     parallel copy instructions explicit.
4170 :    
4171 :     ----------------------------------------------------------------------
4172 : blume 1028 Name: Matthias Blume
4173 : blume 1032 Date: 2002/01/22
4174 :     Tag: blume-20020122-x86-ccalls
4175 :     Description:
4176 :    
4177 :     Bug fix for c-calls on x86 (having to do with how char- and
4178 :     short-arguments are being handled).
4179 :    
4180 :     ----------------------------------------------------------------------
4181 :     Name: Matthias Blume
4182 : blume 1031 Date: 2002/01/21
4183 :     Tag: blume-20020121-ff
4184 :     Description:
4185 :    
4186 :     Another day of fiddling with the FFI...
4187 :    
4188 :     1. Bug fix/workaround: CKIT does not complain about negative array
4189 :     dimensions, so ml-nlffigen has to guard itself against this possibility.
4190 :     (Otherwise a negative dimension would send it into an infinite loop.)
4191 :    
4192 :     2. Some of the abstract types (light objects, light pointers, most "base"
4193 :     types) in structure C are now eqtypes.
4194 :    
4195 :     3. Added constructors and test functions for NULL function pointers.
4196 :    
4197 :     ----------------------------------------------------------------------
4198 :     Name: Matthias Blume
4199 : blume 1028 Date: 2002/01/18
4200 : blume 1030 Tag: blume-20020118-ready-for-new-release
4201 :     Description:
4202 :    
4203 :     Made config/srcarchiveurl point to a new place. (Will provide boot
4204 :     files shortly.)
4205 :    
4206 :     Maybe we christen this to be 110.38?
4207 :    
4208 :     ----------------------------------------------------------------------
4209 :     Name: Matthias Blume
4210 :     Date: 2002/01/18
4211 : blume 1029 Tag: blume-20020118-more-ffifiddle
4212 :     Description:
4213 :    
4214 :     Today's FFI fiddling:
4215 :    
4216 :     - Provided a structure CGetSet with "convenient" versions of C.Get.* and
4217 :     C.Set.* that use concrete (MLRep.*) arguments and results instead
4218 :     of abstract ones.
4219 :    
4220 :     - Provided word-style bit operations etc. for "int" representation
4221 :     types in MLRep.S<Foo>Bitops where <Foo> ranges over Char, Int, Short,
4222 :     and Long.
4223 :    
4224 :     ----------------------------------------------------------------------
4225 :     Name: Matthias Blume
4226 :     Date: 2002/01/18
4227 : blume 1028 Tag: blume-20020118-use-x86-fp
4228 :     Description:
4229 :    
4230 :     Now that x86-fast-fp seems to be working, I turned it back on again
4231 :     by default. (Seems to work fine now, even with the FFI.)
4232 :    
4233 :     Other than that, I added some documentation about the FFI to
4234 :     src/ml-nlffigen/README and updated the FFI test examples in
4235 :     src/ml-nlffi-lib/Tests/*.
4236 :    
4237 :     ----------------------------------------------------------------------
4238 : leunga 1025 Name: Allen Leung
4239 :     Date: 2002/01/17
4240 :     Tag: leunga-20020117-x86-fast-fp-call
4241 :     Description:
4242 :    
4243 :     1. Fixed a problem with handling return fp values when x86's fast fp
4244 :     mode is turned on.
4245 :    
4246 :     2. Minor pretty printing fix for cellset. Print %st(0) as %st(0) instead
4247 :     of %f32.
4248 :    
4249 :     3. Added a constructor INT32lit to the ast of MLRISC tools.
4250 :    
4251 :     ----------------------------------------------------------------------
4252 : blume 1021 Name: Matthias Blume
4253 :     Date: 2002/01/16
4254 :     Tag: blume-20020116-ffifiddle
4255 :     Description:
4256 :    
4257 :     More fiddling with the FFI interface:
4258 :    
4259 :     - Make constness 'c instead of rw wherever possible. This eliminates
4260 :     the need for certain explicit coercions. (However, due to ML's
4261 :     value polymorphism, there will still be many cases where explicit
4262 :     coercions are necessary. Phantom types are not the whole answer
4263 :     to modeling a subtyping relationship in ML.)
4264 :    
4265 :     - ro/rw coersions for pointers added. (Avoids the detour through */&.)
4266 :