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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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Original Path: sml/trunk/HISTORY

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 : jhr 1813 Name: John Reppy
17 : jhr 1824 Date: 2005/07/20
18 :     Tag:
19 :     Description:
20 :    
21 :     Added changes from Dominic Evans (oldmanuk (at) gmail (dot) com)
22 :     to support HPUX 11.
23 :    
24 :     ----------------------------------------------------------------------
25 :     Name: John Reppy
26 : jhr 1813 Date: 2005/07/06
27 :     Tag:
28 :     Description:
29 :    
30 :     Changes to the SML/NJ library. See smlnj-lib/CHANGES for details.
31 :    
32 :     ----------------------------------------------------------------------
33 : mblume 1808 Name: Matthias Blume (blume (at) tti - c (dot) org)
34 :     Date: 2005/07/06 00:45:00 CDT
35 :     Tag: blume-20050706-slice-copy
36 :     Description:
37 :    
38 :     Fixed reversed logic for deciding whether to "copy up" or "copy down"
39 :     in *-array-slice.sml.
40 :    
41 :     ----------------------------------------------------------------------
42 : allenleung 1806 Name: Allen Leung (leunga (at) reservoir (dot) com)
43 : allenleung 1807 Date: 2005/05/31 17:00:00 EST
44 :     Tag: leunga-20050531-cygwin-fault-2
45 :     Description:
46 :    
47 :     A typo in the cygwin code fixed.
48 :    
49 :     ----------------------------------------------------------------------
50 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
51 : allenleung 1806 Date: 2005/05/31 16:47:00 EST
52 :     Tag: leunga-20050531-cygwin-fault
53 :     Description:
54 :    
55 :     Updated Cygwin's fault/signal handling to match the Windows version.
56 :     Updated the export list.
57 :    
58 :     ----------------------------------------------------------------------
59 : mblume 1791 Name: Matthias Blume (blume (at) tti - c (dot) org)
60 : mblume 1795 Date: 2005/05/18 13:35:00 CDT
61 :     Tag: Release_110_54
62 :     Description:
63 :    
64 :     New working version (110.54). NEW BOOTFILES!
65 :    
66 :     ----------------------------------------------------------------------
67 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
68 : mblume 1794 Date: 2005/05/18 11:58:00 CDT
69 :     Tag: blume-20050518-installer
70 :     Description:
71 :    
72 :     Added support scripts for Mac OS X PackageMaker and modified
73 :     config/install.sh so that it supports re-dumping a heap image
74 :     after customization.
75 :    
76 :     ----------------------------------------------------------------------
77 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
78 : mblume 1793 Date: 2005/05/18 10:55:00 CDT
79 :     Tag: blume-20050518-realdiv-noovld
80 :     Description:
81 :    
82 :     Un-overloaded / to work around bug in overloading resolution code.
83 :    
84 :     ----------------------------------------------------------------------
85 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
86 : mblume 1792 Date: 2005/05/16 23:50:00 CDT
87 :     Tag: blume-20050516-redump-heap
88 :     Description:
89 :    
90 :     Added mechanism for re-creating a heap file for the interactive system
91 :     after configuration variables have been changed.
92 :    
93 :     CM.redump_heap : string -> unit
94 :    
95 :     This is much like SMLofNJ.exportML, but starting from the resulting
96 :     heap does not return to the caller of CM.redump_heap but
97 :     restarts the interactive system from scratch. The original call of
98 :     CM.redump_heap does not return but ends the interactive session.
99 :     Thus, CM.redump_heap is a lot like SMLofNJ.exportFn.
100 :    
101 :     Internally, redump_heap winds the dynamic execution context back to
102 :     the point where the original heap image was created and re-executes
103 :     the heap image generation code in the boot code.
104 :    
105 :     ----------------------------------------------------------------------
106 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
107 : mblume 1791 Date: 2005/05/09 21:55:00 CDT
108 :     Tag: blume-20050509-word64
109 :     Description:
110 :    
111 :     Added a hack to the existing hack known as Word64 to make fromString
112 :     behave correctly. I am still not sure whether Word64.scan will work
113 :     as specified with respect to the interaction of radix and prefix.
114 :    
115 :     ----------------------------------------------------------------------
116 : allenleung 1785 Name: Allen Leung (leunga (at) reservoir (dot) com)
117 :     Date: 2005/05/04 11:50:00 EST
118 :     Tag: leunga-20050504-checkgc
119 :     Description:
120 :    
121 :     Added a gc protocol checking phase. This phase is enabled with
122 :     the flag "check-gc". "debug-check-gc" turns on the verbose mode.
123 :    
124 :     ----------------------------------------------------------------------
125 : mblume 1741 Name: Matthias Blume (blume (at) tti - c (dot) org)
126 : mblume 1784 Date: 2005/05/04 10:45:00 CDT
127 :     Tag: blume-20050504-intinf
128 :     Description:
129 :    
130 :     Fixed a bug in the implementation of div and mod for IntInf.
131 :     Thanks to Neophytos Michael for reporting the problem.
132 :    
133 :     ----------------------------------------------------------------------
134 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
135 : mblume 1783 Date: 2005/05/04 10:35:00 CDT
136 :     Tag: blume-20050504-join
137 :     Description:
138 :    
139 :     Added a "join" combinator to the ParserComb module in smlnj-lib.cm.
140 :    
141 :     ----------------------------------------------------------------------
142 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
143 : mblume 1770 Date: 2005/02/28 23:40:00 CST
144 :     Tag: blume-20050228-mVar
145 :     Description:
146 :    
147 :     Fixed serious bug (brown paper bag variety) in new implementation of
148 :     structure Atom in CML. (I had accidentally used a mailbox instead of
149 :     an mvar, leaving the door open for races.)
150 :    
151 :     ----------------------------------------------------------------------
152 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
153 : mblume 1761 Date: 2005/02/25 15:00:00 CST
154 :     Tag: Release_110_53
155 :     Description:
156 :    
157 :     New working version (110.53). NEW BOOTFILES!
158 :    
159 :     ----------------------------------------------------------------------
160 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
161 : mblume 1760 Date: 2005/02/25 14:50:00 CST
162 :     Tag: blume-20050225-susp
163 :     Description:
164 :    
165 :     Brought back SMLofNJ.Susp. The underlying suspension type is the one
166 :     implemented in Core -- which means that it is the same as the one used
167 :     by the lazy extension.
168 :    
169 :     ----------------------------------------------------------------------
170 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
171 : mblume 1759 Date: 2005/02/24 16:50:00 CST
172 :     Tag: blume-20050224-cml-atom
173 :     Description:
174 :    
175 :     Simpler and at the same time more general implementation of structure
176 :     Atom in CML.
177 :    
178 :     ----------------------------------------------------------------------
179 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
180 : mblume 1758 Date: 2005/02/15 17:35:00 CST
181 :     Tag: blume-20050215-tools
182 :     Description:
183 :    
184 :     Created new "tools" directory under "src" and moved "TraceDebugProf"
185 :     there.
186 :    
187 :     ----------------------------------------------------------------------
188 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
189 : mblume 1755 Date: 2005/02/10 17:55:00 CST
190 :     Tag: blume-20050210-longlong
191 :     Description:
192 :    
193 :     Implemented "long long" arguments and results for NLFFI. (Only the
194 :     PPC/MacOS implementation is complete, the other backends still need to
195 :     be updated.)
196 :    
197 :     ----------------------------------------------------------------------
198 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
199 : mblume 1751 Date: 2005/01/24 17:40:00 CST
200 :     Tag: blume-20050124-mlyacc
201 :     Description:
202 :    
203 :     Minor cleanup in ML-Yacc rule printing mechanism. This should fix a
204 :     problem with certain "as" patterns which previously got rendered
205 :     using incorrect syntax.
206 :    
207 :     ----------------------------------------------------------------------
208 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
209 : mblume 1750 Date: 2005/01/18 12:00:00 CST
210 :     Tag: blume-20050118-profile
211 :     Description:
212 :    
213 :     Made time profiling code (interrupt handler) in runtime system aware
214 :     of new array representation.
215 :    
216 :     ----------------------------------------------------------------------
217 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
218 : mblume 1747 Date: 2005/01/14 18:00:00 CST
219 :     Tag: blume-20050114-heap2exec
220 :     Description:
221 :    
222 :     Implemented new (but still experimental) heap2exec facility. This is
223 :     tested under Mac OS X and should work under Linux (will test shortly).
224 :     It will probably also work on the Sparc (will test some time later).
225 :    
226 :     - removed old "HACKED_STANDALONE" hack from runtime
227 :    
228 :     To be able to test this, uncomment the request for "heap2asm" in
229 :     config/targets prior to installation. (Notice that this is different
230 :     from "heap2exec" mentioned below. Not a typo.)
231 :    
232 :     To perform an actual test, run the command
233 :    
234 :     $ bin/heap2exec heapfile execfile
235 :    
236 :     (You can put heap2exec on your shell's path.)
237 :    
238 :     For example, run
239 :    
240 :     $ bin/heap2exec bin/.heap/ml-yacc.ppc-darwin mly
241 :    
242 :     This will create a standalone executable called "mly" which you can
243 :     then invoke directly as a command.
244 :    
245 :     ----------------------------------------------------------------------
246 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
247 : mblume 1746 Date: 2005/01/07 11:44:00 CST
248 :     Tag: blume-20050107-mlstring
249 :     Description:
250 :    
251 :     fixed off-by-one error in ML_STRING macro (globals.c)
252 :    
253 :     ----------------------------------------------------------------------
254 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
255 : mblume 1744 Date: 2004/12/23 18:00:00 CST
256 :     Tag: blume-20041223-santa
257 :     Description:
258 :    
259 :     Made ml-build script "smarter" (but only very little).
260 :    
261 :     ----------------------------------------------------------------------
262 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
263 : mblume 1742 Date: 2004/12/21 15:05:00 CST
264 :     Tag: blume-20041221-longlong
265 :     Description:
266 :    
267 :     * Implemented access to signed and unsigned long long data in NLFFI.
268 :     (The parameter-passing part of the picture has not complete. But
269 :     data structure access seems to work.)
270 :    
271 :     * Fixed CM's incorrect assumption that the PPC is little-endian.
272 :     (On the Mac, it is big-endian. And that's currently our only
273 :     PPC platform.)
274 :    
275 :     ----------------------------------------------------------------------
276 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
277 : mblume 1741 Date: 2004/12/21 12:50:00 CST
278 :     Tag: blume-20041221-memory
279 :     Description:
280 :    
281 :     Some cleanup in the $c/memory.cm library: separated some concerns by
282 :     moving allocation code and memory access code each into their own
283 :     files.
284 :    
285 :     ----------------------------------------------------------------------
286 : allenleung 1740 Name: Allen Leung (leunga (at) reservoir (dot) com)
287 :     Date: 2004/12/17 16:12:00 EST
288 :     Tag: leunga-20041217-cygwin-smlnj-home
289 :     Description:
290 :    
291 :     The Unix I/O library of SML/NJ on cygwin does not understand
292 :     Windows style pathname, so problems arise when SMLNJ_HOME is set
293 :     to a Windows style pathname. _run-sml now converts SMLNJ_HOME
294 :     to a POSIX pathname on cygwin.
295 :    
296 :     ----------------------------------------------------------------------
297 : mblume 1737 Name: Matthias Blume (blume (at) tti - c (dot) org)
298 : mblume 1736 Date: 2004/12/16 13:35:00 CST
299 :     Tag: Release_110_52
300 :     Description:
301 :    
302 :     Last-minute changes incorporated into 110.52. Release tag moved.
303 :    
304 :     The changes:
305 :     - HashString.hashString' -> HashString.hashSubstring
306 :     - bug fix in UnivariateStats
307 :    
308 :     ----------------------------------------------------------------------
309 : mblume 1702 Name: Matthias Blume (blume (at) tti - c (dot) org)
310 : mblume 1733 Date: 2004/12/15 23:40:00 CST
311 :     Tag: blume-20041215-hashSubstring
312 :     Description:
313 :    
314 :     - HashString.hashString' -> HashString.hashSubstring
315 :     - corresponding changes in atom.sml
316 :     - "de-compressed" (aka. un-obfuscated) code for UnivariateStats and
317 :     added some comments
318 :    
319 :     ----------------------------------------------------------------------
320 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
321 : mblume 1728 Date: 2004/12/15 15:30:00 CST
322 : mblume 1736 Tag: (Release_110_52)
323 : mblume 1728 Description:
324 :    
325 :     New working version (110.52). NEW BOOTFILES!
326 :    
327 :     ----------------------------------------------------------------------
328 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
329 : mblume 1727 Date: 2004/12/15 12:45:00 CST
330 :     Tag: blume-20041215-spaces
331 :     Description:
332 :    
333 :     More on the space problem (this time for Win32).
334 :    
335 :     ----------------------------------------------------------------------
336 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
337 : mblume 1725 Date: 2004/12/14 17:30:00 CST
338 :     Tag: blume-20041214-spaces
339 :     Description:
340 :    
341 :     Hacked some of the scripts (in particular: the installer) to cope with
342 :     spaces in filenames a bit better. But beware: the current "solution"
343 :     is likely still full of bugs and inherently incomplete. (We need to
344 :     do away with those shell scripts for a comprehensive solution.)
345 :    
346 :     ----------------------------------------------------------------------
347 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
348 : mblume 1724 Date: 2004/12/13 14:45:00 CST
349 :     Tag: blume-20041213-ml-makedepend
350 :     Description:
351 :    
352 :     Fixed bug in code for ml-makedepend.
353 :    
354 :     ----------------------------------------------------------------------
355 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
356 : mblume 1720 Date: 2004/12/09 16:30:00 CST
357 :     Tag: blume-20041209-statistics
358 :     Description:
359 :    
360 :     Added two simple but potentially useful statistics modules to SML/NJ Library.
361 :     (See CHANGES file there.)
362 :    
363 :     ----------------------------------------------------------------------
364 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
365 : mblume 1718 Date: 2004/12/01 16:50:00 CST
366 :     Tag: blume-20041201-atom
367 :     Description:
368 :    
369 :     smlnj-lib:
370 :    
371 :     Added function HashString.hashString' for substrings.
372 :     Hand-inlined CharVector.foldl into HashString (for speed).
373 :     Modified implementation of structure Atom to avoid extracting
374 :     strings from substrings unless necessary.
375 :     (Also see CHANGES file for smlnj-lib.)
376 :    
377 :     ----------------------------------------------------------------------
378 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
379 : mblume 1717 Date: 2004/11/24 22:15:00 CST
380 :     Tag: blume-20041124-cml
381 :     Description:
382 :    
383 :     Made sure CML compiles when Position = Int64.
384 :    
385 :     ----------------------------------------------------------------------
386 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
387 : mblume 1715 Date: 2004/11/24 14:30:00 CST
388 :     Tag: blume-20041124-position
389 :     Description:
390 :    
391 :     The compiler can now be compiled in a mode that makes structure Position
392 :     equal to Int64. The default, however, is unchanged (Position = Int31)
393 :     for the time being.
394 :    
395 :     To enable 64-bit positions, use the following procedure:
396 :    
397 :     1. Start sml
398 :     2. Autoload $smlnj/cmb.cm (if not already autoloaded)
399 :     3. Type
400 :     #set (CMB.symval "USE_64_BIT_POSITIONS") (SOME 1);
401 :     4. Run CMB.make() as usual.
402 :    
403 :     This is barely tested. The only test so far was a little SML program
404 :     counting the number of characters in an 8-gigabyte file by
405 :     reading it character-by-character. That test was successful.
406 :    
407 :     In support of 64-bit positions, a number of new functions have been
408 :     added to the runtime system.
409 :    
410 :     ----------------------------------------------------------------------
411 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
412 : mblume 1716 Date: 2004/11/23 14:45:00 CST
413 :     Tag: blume-20041123-useFile
414 : mblume 1712 Description:
415 :    
416 :     Fixed a problem with unhelpful error messages related to problems with
417 :     .cm- or .sml files that appear as part of the sml command line.
418 :    
419 :     ----------------------------------------------------------------------
420 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
421 : mblume 1703 Date: 2004/11/18 15:40:00 CST
422 :     Tag: Release_110_51
423 :     Description:
424 :    
425 :     New working version (110.51). NEW BOOTFILES!
426 :    
427 :     ----------------------------------------------------------------------
428 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
429 : mblume 1702 Date: 2004/11/18 15:35:00 CST
430 :     Tag: <none>
431 :     Description:
432 :    
433 :     Enabled dlopen and friends for FreeBSD (as recommended by Johannes 5
434 :     Joemann).
435 :    
436 :     ----------------------------------------------------------------------
437 : allenleung 1701 Name: Allen Leung (leunga (at) reservoir (dot) com)
438 :     Date: 2004/11/17 16:05:21 EST 2004
439 :     Tag: leunga-20041117-mlrisc-live-kill
440 :     Description:
441 :    
442 :     Added support for MLTree constructs LIVE and KILL
443 :     to all the architectures.
444 :    
445 :     ----------------------------------------------------------------------
446 : mblume 1687 Name: Matthias Blume (blume (at) tti - c (dot) org)
447 : mblume 1689 Date: 2004/11/13 00:20:00 CST
448 :     Tag: blume-20041113-versiontool
449 :     Description:
450 :    
451 :     - Stripped down the versiontool: It now only handles the version number.
452 :     The date string is generated at bootstrap time (during makeml).
453 :    
454 :     - In a previous commit, fixed a minor issue with how polyequal is being
455 :     translated. In particular, the code now "looks through" abstractions.
456 :     This results in slightly fewer polyEqual warnings and hopefully slightly
457 :     more efficient code. Important examples for where this matters are
458 :     the new int64 and word64 types.
459 :    
460 :     ----------------------------------------------------------------------
461 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
462 : mblume 1687 Date: 2004/11/12 00:30:00 CST
463 :     Tag: blume-20041112-int64
464 :     Description:
465 :    
466 :     Structure Int64 fully hooked in. (The implementation is not very
467 :     efficient, though.)
468 :    
469 :     ----------------------------------------------------------------------
470 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
471 : mblume 1686 Date: 2004/11/11 17:30:00 CST
472 :     Tag: blume-20041111-more64
473 :     Description:
474 :    
475 :     All the pieces of Word64 are now there, with the exception of the
476 :     conversions from and to LargeWord. (Eventually these need to be identities,
477 :     but for the time being they don't even make sense because LargeWord is
478 :     32-bit wide.)
479 :    
480 :     Also started to add similar support for Int64, but major pieces of that
481 :     are still missing.
482 :    
483 :     ----------------------------------------------------------------------
484 : mblume 1668 Name: Matthias Blume (blume (at) tti - c (dot) org)
485 : mblume 1684 Date: 2004/11/11 00:15:00 CST
486 :     Tag: blume-20041111-word64
487 :     Description:
488 :    
489 :     Structure Word64 is now (almost) complete, word literals and patterns
490 :     seem to work. There are a few odd pieces missing. In particular,
491 :     I didn't do the {from,to}LargeWord parts because LargeWord is still Word32
492 :     at the moment.
493 :    
494 :     Making Word64 official would mean that LargeWord becomes Word64. But
495 :     this requires extreme care because most word-word conversions have to
496 :     go through LargeWord, so making a mistake means loss of efficiency or
497 :     worse. Eventually there will be a solution similar to (but actually
498 :     simpler than) what I did with IntInf.
499 :    
500 :     ----------------------------------------------------------------------
501 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
502 : mblume 1683 Date: 2004/11/10 18:12:00 CST
503 :     Tag: blume-20041110-64bit
504 :     Description:
505 :    
506 :     More 64-bit hacking (but still not even half-way there yet).
507 :     Also, some assorted improvements to the handling of 8-bit words.
508 :    
509 :     ----------------------------------------------------------------------
510 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
511 : mblume 1682 Date: 2004/11/09 17:50:00 CST
512 : mblume 1683 Tag: <none>
513 : mblume 1682 Description:
514 :    
515 :     Started adding some infrastructure for supporting 64-bit int- and
516 :     word-types. (Still in its very early stages.)
517 :    
518 :     ----------------------------------------------------------------------
519 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
520 : mblume 1672 Date: 2004/10/28 10:45:00 CDT
521 :     Tag: Release_110_50
522 :     Description:
523 :    
524 :     New working version (110.50). NEW BOOTFILES!
525 :    
526 :     =====================
527 :    
528 :     Also:
529 :    
530 :     - Changend config/srcarchiveurl from a file just
531 :     containing the URL string into a file containing
532 :     shell script code. The code has access to the $VERSION variable.
533 :     - Made corresponding changes to config/install.sh and config/unpack.
534 :     - Default contents of config/srcarchiveurl uses $VERSION and
535 :     normally does not have to be edited to reflect a version change.
536 :    
537 :     (As a result, a version change can be done by just editing
538 :     config/version, the rest is now automatic.)
539 :    
540 :     ----------------------------------------------------------------------
541 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
542 : mblume 1669 Date: 2004/10/27 17:50:00 CDT
543 :     Tag: blume-20041027-btrace-msg
544 :     Description:
545 :    
546 :     BackTrace.monitor now also reports the source of the exception that
547 :     triggered the trace.
548 :    
549 :     ----------------------------------------------------------------------
550 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
551 : mblume 1668 Date: 2004/10/27 17:20:00 CDT
552 :     Tag: blume-20041027-x86-c-calls
553 :     Description:
554 :    
555 :     This is the HISTORY entry for two earlier commits, both concerning
556 :     the x86 c-calls code in MLRISC:
557 :    
558 :     - added a missing LOAD in the code that deals with struct arguments
559 :     - made sure the caller does not add the wrong number of bytes to the
560 :     stack pointer after a call of a function returning a struct
561 :     (the callee already pops the implicit argument which points to
562 :     the space reserved for the result)
563 :    
564 :     ----------------------------------------------------------------------
565 : allenleung 1662 Name: Allen Leung (leunga (at) reservoir (dot) com)
566 :     Date: 2004/10/24 14:00:00 EST
567 :     Tag: leunga-20041024-x86-gas-fucomip
568 :     Description:
569 :    
570 :     John discovered a bug in the syntax of fucomip.
571 :     The opcodes FU?COMIP? have been changed to
572 :    
573 :     fu?comip? %st(i), %st
574 :    
575 :     ----------------------------------------------------------------------
576 : mblume 1622 Name: Matthias Blume (blume (at) tti - c (dot) org)
577 : mblume 1656 Date: 2004/10/20 15:06:00 CDT
578 :     Tag: blume-20041020-standalone-backtrace
579 :     Description:
580 :    
581 :     Added a mechanism for getting back-trace information from standalone
582 :     programs. Here is how it works:
583 :    
584 :     1. The part of the program from which you want to get backtrace
585 :     information (usually the whole program) should be wrapped with
586 :     BackTrace.monitor. This is a (unit->'a)->'a function, and your
587 :     main program could be modified from something like
588 :    
589 :     fun main (pgm, args) = ...
590 :    
591 :     to
592 :    
593 :     fun main (pgm, args) = BackTrace.monitor (fn () => ...)
594 :    
595 :     2. To be able to access BackTrace.monitor, you have to add
596 :     library $smlnj-tdp/plugins.cm to the .cm file that contains your
597 :     main function.
598 :    
599 :     3. Remove all compiled code (i.e., all the .cm/ subdirectories that
600 :     CM might have created in the past for your project).
601 :    
602 :     4. Build the system using this command line:
603 :    
604 :     ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
605 :     myprog.cm MyProg.main myprog
606 :    
607 :     instead of the usual
608 :    
609 :     ml-build myprog.cm MyProg.main myprog
610 :    
611 :     I changed a library name:
612 :    
613 :     $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
614 :    
615 :     New libraries:
616 :    
617 :     $smlnj-tdp/back-trace.cm
618 :     -- when loaded causes the back-trace plugin to be installed
619 :     $smlnj-tdp/coverage.cm
620 :     -- when loaded causes the coverage plugin to be installed
621 :    
622 :     ----------------------------------------------------------------------
623 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
624 : mblume 1655 Date: 2004/10/18 16:45:00 CDT
625 :     Tag: blume-20041018-groupowner
626 :     Description:
627 :    
628 :     Added an "obsolete" warning for the "group owner" syntax to CM's parser.
629 :    
630 :     Eliminated group owner specs from .cm files throughout the source tree.
631 :    
632 :     ----------------------------------------------------------------------
633 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
634 : mblume 1653 Date: 2004/10/15 15:45:00 CDT
635 :     Tag: blume-20041015-coverage
636 :     Description:
637 :    
638 :     * Test coverage tool added!
639 :     * Further reorganization of tracing-, debugging-, and profiling support:
640 :    
641 :     - moved original BTImp -- now called BackTrace -- into a separate
642 :     library called $/trace-debug-profile.cm
643 :     - eliminated all mentions of BTrace from SMLofNJ.Internals
644 :     - only the instrumentation mechanism is now left in the compiler proper
645 :     - BackTrace module is a plugin which is NOT plugged in by default
646 :     - Coverage module is another such plugin
647 :    
648 :     To get the benefits of any of these plugin modules, the code in
649 :     question must be compiled with tdp instrumentation turned on. This
650 :     can be done by setting SMLofNJ.Internals.TDP.mode to true.
651 :     (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
652 :    
653 :     Plugins are selected at link time. (Pre-compiled instrumented code
654 :     can be re-loaded with different plugins in effect.) When an
655 :     instrumented module is linked, whatever plugins are at that time
656 :     enabled will come into effect for that module.
657 :    
658 :     To enable the back-trace plugin, load library $/trace-debug-profile.cm
659 :     and invoke BackTrace.install() (e.g., from the interactive prompt).
660 :     To enable the coverage plugin, load the same library and invoke
661 :     Coverage.install().
662 :    
663 :     Back-traces are generated automatically on uncaught exceptions and
664 :     when the code in question explicitly invokes BackTrace.trigger().
665 :    
666 :     Coverage (and execution frequency-) information must be queried
667 :     explicitly by calling Coverage.not_covered and Coverage.hot_spots.
668 :    
669 :     ----------------------------------------------------------------------
670 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
671 : mblume 1652 Date: 2004/10/14 17:40:00 CDT
672 :     Tag: blume-20041014-tdp-core
673 :     Description:
674 :    
675 :     Snapshot of a significant overhaul of how the trace/debug/profile support
676 :     is hooked into the system (specifically: Core and SMLofNJ.Internals).
677 :    
678 :     ----------------------------------------------------------------------
679 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
680 : mblume 1650 Date: 2004/10/13 16:34:00 CDT
681 :     Tag: blume-20041013-tdp
682 :     Description:
683 :    
684 :     Some rationalization of names:
685 :    
686 :     structure BTrace -> structure TDPInstrument
687 :     etc.
688 :    
689 :     This is is preparation of using the original back-trace
690 :     instrumentation for other purposes. "TDP" stands for
691 :     Trace/Debug/Profile.
692 :    
693 :     The control flag controlling whether instrumentation is on or off is now
694 :     registered under a different name, so instead of running sml as
695 :    
696 :     sml -Cinstrument.btrace-mode=true
697 :    
698 :     one has to say
699 :    
700 :     sml -Ctdp.instrument=true
701 :    
702 :     ----------------------------------------------------------------------
703 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
704 : mblume 1645 Date: 2004/10/11 16:37:00 CDT
705 :     Tag: blume-20041011-regions
706 :     Description:
707 :    
708 :     Made some minor modifications to elabcore.sml to have source regions
709 :     be propagated more tightly -- resulting in better (i.e., smaller)
710 :     regions being reported in error- and debug messages.
711 :    
712 :     ----------------------------------------------------------------------
713 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
714 : mblume 1644 Date: 2004/10/08 22:50:00 CDT
715 :     Tag: blume-20041008-cmkw
716 :     Description:
717 :    
718 :     Fixed handling of keywords in .cm files: After seeing "is" the lexer
719 :     treats subsequent occurrences of "group", "library", "source", "is",
720 :     "*", and "-" as ordinary identifiers rather than keywords.
721 :    
722 :     Most seriously, this fixes a problem with CM's "shell" tool. The tool
723 :     is supposed to accept a tool argument called "source", but this did
724 :     not work because of the clash with the keyword.
725 :    
726 :     ----------------------------------------------------------------------
727 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
728 : mblume 1642 Date: 2004/10/07 16:00:00 CDT
729 :     Tag: blume-20041007-cleanup
730 :     Description:
731 :    
732 :     Assorted cleanup work:
733 :    
734 :     - got rid of intstrmap in favor of using the library's
735 :     hash table implementation
736 :     - threw out most of the pathnames stuff, as it was not used anyway
737 :     - simplified tokentable implementation
738 :     - fixed some minor spelling errors
739 :    
740 :     ----------------------------------------------------------------------
741 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
742 : mblume 1641 Date: 2004/10/06 15:15:15 CDT
743 :     Tag: blume-20041006-handler
744 :     Description:
745 :    
746 :     Cleaned up the absyn to reflect the invariant that HANDLE always
747 :     carries a FNexp as part of the type definition. This eliminates some
748 :     superfluous sanity checks at runtime down the road.
749 :    
750 :     Some minor cleanup of the btrace code.
751 :    
752 :     ----------------------------------------------------------------------
753 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
754 : mblume 1640 Date: 2004/10/01 10:20:30 CDT
755 :     Tag: blume-20041001-slave
756 :     Description:
757 :    
758 :     Added hack to make slave mode work in the presence of the version
759 :     tool. (Still, since the master does two passes over the code for
760 :     CMB.make, the release number gets bumped twice when slaves are
761 :     attached. I don't know if this is worth fixing...)
762 :    
763 :     ----------------------------------------------------------------------
764 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
765 : mblume 1639 Date: 2004/09/30 10:55:00 CDT
766 :     Tag: blume-20040930-version
767 :     Description:
768 :    
769 :     * Moved the "version" magic into its own little library under
770 : mblume 1672 src/system/smlnj/internal. This avoids expensive reconstruction of
771 :     a stable src/compiler/core.cm.
772 : mblume 1639
773 : mblume 1672 * At the same time, structure CompilerVersion is now known as
774 :     structure SMLNJVersion.
775 : mblume 1639
776 :     * Arranged for the version tool to NOT kick in when rebuilding the system
777 :     (makeml -rebuild, fixpt). Otherwise one would never reach a fixpoint.
778 :     Also, loading the versiontool does not work when rebuilding the system
779 :     because CM is not properly initialized at that time.
780 :    
781 :     ----------------------------------------------------------------------
782 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
783 : mblume 1638 Date: 2004/09/29 14:00:00 CDT
784 :     Tag: blume-20040929-autoversion
785 :     Description:
786 :    
787 :     Implemented some CM magic to have
788 :     file src/compiler/TopLevel/main/version.sml
789 :     generated automagically.
790 :     The version is taken from two files: config/version and config/release.
791 :     The first is expected to contain a two-part version number such as 110.49.
792 :     The second should contain a single number, but it may be missing.
793 :    
794 :     If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
795 :     time the version tool is loaded (which is the first time you say CMB.make),
796 :     then the tool will increment the value stored in config/release every
797 :     time CMB.make is invoked.
798 :    
799 :     The binfile format is now insensitive to anything beyond the first
800 :     two components of a version number, so bumping the release does not render
801 :     binfiles incompatible. Auto-bumping can be used to keep track of versions
802 :     during development without invalidating existing binfiles.
803 :    
804 :     In any case, every CMB.make updates the date information in version.sml.
805 :     (This is the date that is printed in the banner.)
806 :    
807 :     ----------------------------------------------------------------------
808 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
809 : mblume 1634 Date: 2004/09/28 10:53:00 CDT
810 :     Tag: blume-20040928-controls
811 :     Description:
812 :    
813 :     Some cleanup of the controls code.
814 :    
815 :     ----------------------------------------------------------------------
816 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
817 : mblume 1633 Date: 2004/09/27 22:08:00 CDT
818 :     Tag: blume-20040927-controls
819 :     Description:
820 :    
821 :     Added two pieces of functionality to the Controls interface:
822 :    
823 :     1. val save'restore: 'a control -> unit -> unit
824 :    
825 :     grabs the current value of the control in stage 1 and restores it
826 :     in stage 2.
827 :    
828 :     2. val set' : 'a control * 'a -> unit -> unit
829 :    
830 :     stores the given value into the control in stage 2 (i.e., delayed)
831 :     but does all error checking in stage 1.
832 :     (This is for string controls that need to do parse their argument --
833 :     something that might fail. In some cases, notably in CM, one
834 :     already knows the intended argument but wants to delay the actual
835 :     assignment until a time when error recovery would be more difficult.)
836 :    
837 :     Changed the handling of controls in tool arguments to classes "sml" and
838 :     "lazysml":
839 :     - use Controls.save'restore as a more robust way of restoring the
840 :     old value (in particular: without having to re-parse the string)
841 :     - use controls to handle the "overload" keyword in the init group
842 :     (I believe this change actually fixes a long-standing obscure bug.)
843 :    
844 :     ----------------------------------------------------------------------
845 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
846 : mblume 1632 Date: 2004/09/27 17:00:00 CDT
847 :     Tag: blume-20040927-lazysml
848 :     Description:
849 :    
850 :     Added a new tool class called "lazysml" to CM's tool chest. The only
851 :     difference to "sml" is that compilation is done with Control.lazysml
852 :     set to true. A source of class "lazysml" is automatically recognized
853 :     by a file name suffix of ".lml".
854 :    
855 :     In addition to the above feature, the original class "sml" now also
856 :     supports a tool argument "lazy" which has the same effect. As a
857 :     result, the following three lines are equivalent:
858 :    
859 :     foo.sml : lazysml
860 :     foo.sml : sml (lazy)
861 :     foo.sml (lazy)
862 :    
863 :     The setting goes into effect both during parsing and during
864 :     compilation. The original setting is restored right after parsing and
865 :     after compilation, respectively.
866 :    
867 :     In addition to all the above, there is also a general mechanism to set
868 :     ANY of the "controls" that are available at the command line via
869 :     "-C..." on a per-sml-file basis. The same rules that apply for "lazy"
870 :     apply as well. (In fact, "lazy" is implemented as a special case of
871 :     the general mechanism.)
872 :    
873 :     The .cm file syntax uses a new keyword tool argument called "with".
874 :     There are several ways of indicating the desired settings:
875 :    
876 :     foo.sml (with:parser.quotations=true)
877 :     foo.sml (with:(name:parser.quotations value:true))
878 :     foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
879 :     foo.sml (with:(name1=value1 name2=value2 ...))
880 :     foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
881 :    
882 :     etc.
883 :    
884 :     Another possible abbreviation is to leave out the =v or value:v part
885 :     if the name refers to a boolean control (in which case the value is
886 :     taken to be true). Thus, one could get lazy sml also by saying:
887 :    
888 :     foo.sml (with:parser.lazy-keyword=true)
889 :     foo.sml (with:parser.lazy-keyword)
890 :     foo.sml (with:(name:parser.lazy-keyword value:true))
891 :     foo.sml (with:(name:parser.lazy-keyword))
892 :    
893 :     ----------------------------------------------------------------------
894 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
895 : mblume 1631 Date: 2004/09/24 16:22:00 CDT
896 :     Tag: blume-20040924-ppc-long-branch
897 :     Description:
898 :    
899 :     Turned message about "emiting long form of branch" off by default.
900 :     Added a control flag to turn it back on when desired.
901 :    
902 :     ----------------------------------------------------------------------
903 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
904 : mblume 1630 Date: 2004/09/24 16:05:00 CDT
905 :     Tag: blume-20040924-rounding
906 :     Description:
907 :    
908 :     Applied patch for setting rounding modes under Mac OS X. Thanks to
909 :     Melissa O'Neill for providing the code!
910 :    
911 :     ----------------------------------------------------------------------
912 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
913 : mblume 1629 Date: 2004/09/23 17:30:00 CDT
914 :     Tag: blume-20040923-envvars
915 :     Description:
916 :    
917 :     1. Changed definition of type ControlRegistry.registry_tree to
918 :     include control_info (i.e., the name of the controlling environment
919 :     variable).
920 :    
921 :     2. Added command-line flags -e and -E to print the names of environment
922 :     variables that can be used to control internal settings.
923 :     (This uses the new API mentioned in 1.)
924 :    
925 :     ----------------------------------------------------------------------
926 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
927 : mblume 1622 Date: 2004/09/13 16:50:00 CDT
928 :     Tag: Release_110_49
929 :     Description:
930 :    
931 :     New working version (110.49). NEW BOOTFILES!
932 :    
933 :     ----------------------------------------------------------------------
934 : mblume 1621 Name: Matthias Blume
935 :     Date: 2004/09/13 16:20:00 CDT
936 :     Tag: blume-20040913-config-mlrisc
937 :     Description:
938 :    
939 :     Put target "mlrisc" back into the default list.
940 :     (There is no harm in having it, and some users have expressed their
941 :     wish to have "mlrisc" included by default.)
942 :    
943 :     ----------------------------------------------------------------------
944 : jhr 1620 Name: John Reppy
945 :     Date: 2004/09/13
946 :     Tag: jhr-20040913-signals
947 :     Description:
948 :    
949 :     Fixed the signal masking code to properly nest mask/unmask operations
950 :     on a per-signal basis.
951 :    
952 :     ----------------------------------------------------------------------
953 : mblume 1619 Name: Matthias Blume (blume (at) tti - c (dot) org)
954 :     Date: 2004/09/08 13:20:00 CDT
955 :     Tag: blume-20040908-heap-magic
956 :     Description:
957 :    
958 :     Bumped the heap macig number to 0x09082004 to account for the changed
959 :     layout of the ML frame under MacOS X.
960 :    
961 :     ----------------------------------------------------------------------
962 : allenleung 1618 Name: Allen Leung (leunga (at) reservoir (dot) com)
963 :     Date: 2004/09/03 11:26:00 EST
964 :     Tag: leunga-20040903-cygwin-install
965 :     Description:
966 :    
967 :     Added a patch to _arch-n-opsys to enable the Cygwin runtime.
968 :     The Cygwin runtime is turned on by setting the environment
969 :     variable SMLNJ_CYGWIN_RUNTIME to 1.
970 :    
971 :     ----------------------------------------------------------------------
972 : mblume 1615 Name: Matthias Blume (blume (at) tti - c (dot) org)
973 : mblume 1617 Date: 2004/08/31 17:15:00 CDT
974 :     Tag: blume-20040831-core
975 :     Description:
976 :    
977 :     Added some exports to src/compiler/core.cm upon request by J. Joemann.
978 :    
979 :     ----------------------------------------------------------------------
980 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
981 : mblume 1616 Date: 2004/08/30 17:55:00 CDT
982 :     Tag: blume-20040830-installer
983 :     Description:
984 :    
985 :     Upon request by Johannes Joemann:
986 :    
987 :     - improved ML code of installer to fall back to coping when renaming
988 :     fails (i.e., when source and target are on different file systems);
989 :     the code compiles but has yet to be tested in anger
990 :     - removed mlrisc from list of default targets (config/targets)
991 :    
992 :     ----------------------------------------------------------------------
993 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
994 : mblume 1615 Date: 2004/08/27 17:20:00 CDT
995 :     Tag: blume-20040827-ptreql
996 :     Description:
997 :    
998 :     Added ptreql primop to structure InlineT (upon request from Larry
999 :     Paulson).
1000 :    
1001 :     ----------------------------------------------------------------------
1002 : allenleung 1613 Name: Allen Leung (leunga (at) reservoir (dot) com)
1003 : allenleung 1614 Date: 2004/08/15 21:21:00 EST
1004 :     Tag: leunga-110_48-udgraph
1005 :     Description:
1006 :    
1007 :     Another bug fix from Carl Hauser:
1008 :    
1009 :     diff /net/niflab/smlnj48/src/MLRISC/graphs/udgraph.sml udgraph.sml
1010 :     > 48c48
1011 :     > < | rmv((e as (k,_))::es,L) = rmv(es,if k = i then es else
1012 :     > e::L)
1013 :     > ---
1014 :     > > | rmv((e as (k,_))::es,L) = rmv(es,if k = i then L else e::L)
1015 :     > Without this, any deletion of an edge in an undirected graph does severe
1016 :     > violence to the graph.
1017 :    
1018 :     ----------------------------------------------------------------------
1019 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
1020 : allenleung 1613 Date: 2004/08/10 23:35:00 EST
1021 :     Tag: leunga-110_48-ppc
1022 :     Description:
1023 :    
1024 :     The IBM/MacOS syntax switch on PPC was incorrectly swapped.
1025 :    
1026 :     ----------------------------------------------------------------------
1027 : mblume 1602 Name: Matthias Blume (blume (at) tti - c (dot) org)
1028 : mblume 1615 Date: 2004/08/10 12:00:00 CDT
1029 : mblume 1602 Tag: Release_110_48
1030 :     Description:
1031 :    
1032 :     New working version (110.48). NEW BOOTFILES!
1033 :    
1034 :     ----------------------------------------------------------------------
1035 : allenleung 1599 Name: Allen Leung (leunga (at) reservoir (dot) com)
1036 :     Date: 2004/08/09 12:21:00 EST
1037 :     Tag: leunga-110_47-dijsktra
1038 :     Description:
1039 :    
1040 :     Bug fix from Carl Hauser:
1041 :    
1042 :     single_source_shortest_paths in dijkstra.sml was observed to get wrong
1043 :     answers (by comparing to single_source_shortest_paths in bellman-ford.sml).
1044 :    
1045 :     The problem is that following the expression A.update(dist,s,Num.zero)
1046 :     it is necessary to update the priority queue using Q.decreaseWeight(Q,s).
1047 :    
1048 :     ----------------------------------------------------------------------
1049 : mblume 1595 Name: Matthias Blume (blume (at) tti - c (dot) org)
1050 :     Date: 2004/08/06 18:10:00 CDT
1051 :     Tag: blume-20040806-cmdline
1052 :     Description:
1053 :    
1054 :     Fiddled with handling of command-line options:
1055 :    
1056 :     * sml now quits after processing the command line
1057 :     if -H, -S, -h<n>, or -s<n> appears as the last
1058 :     command-line argument
1059 :     * a new option -q terminates the session when encountered on
1060 :     the command line; subsequent arguments will be ignored
1061 :     * bug fixes: short (erroneous) arguments are no longer ignored
1062 :     completely
1063 :    
1064 :     ----------------------------------------------------------------------
1065 : allenleung 1593 Name: Allen Leung (leunga (at) reservoir (dot) com)
1066 :     Date: 2004/08/04 18:17:00 EST
1067 :     Tag: leunga-110_47-ppc-ibm-asm
1068 :     Description:
1069 :    
1070 :     - Added minimal IBM assembly syntax support for PowerPC.
1071 :    
1072 :     - Cygwin: manually changed the file cygwin.def. Some exported symbols have
1073 :     been altered in the runtime. We need an automatic way to keep the file
1074 :     in sync.
1075 :    
1076 :     ----------------------------------------------------------------------
1077 : mblume 1548 Name: Matthias Blume (blume (at) tti - c (dot) org)
1078 : mblume 1581 Date: 2004/08/04 14:00:00 CDT
1079 :     Tag: Release_110_47
1080 :     Description:
1081 :    
1082 :     New working version (110.47). NEW BOOTFILES!
1083 :    
1084 :     ----------------------------------------------------------------------
1085 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1086 : mblume 1580 Date: 2004/08/03 14:25:00 CDT
1087 :     Tag: blume-20040803-callingconv
1088 :     Description:
1089 :    
1090 :     Added low-level support for choosing C calling conventions by
1091 :     twiddling the type of rawccall. (See
1092 :     src/compiler/Semant/types/cproto.sml for details.)
1093 :    
1094 :     ----------------------------------------------------------------------
1095 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1096 : mblume 1579 Date: 2004/08/02 15:55:00 CDT
1097 :     Tag: blume-20040802-backout
1098 :     Description:
1099 :    
1100 :     Backed out of change to win32-filesys.c. The earlier patch to
1101 :     get_file_time caused CM to produce files with the wrong time stamp.
1102 :    
1103 :     ----------------------------------------------------------------------
1104 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1105 : mblume 1573 Date: 2004/08/02 14:45:00 CDT
1106 :     Tag: blume-20040802-nlffi-win32
1107 :     Description:
1108 :    
1109 :     Added NLFFI support for Win32, adapted from a patch provided by David
1110 :     Hansel. This is currently completely untested. Also, the issue
1111 :     concerning stdcall vs. ccall is still unresolved.
1112 :    
1113 :     ----------------------------------------------------------------------
1114 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1115 : mblume 1572 Date: 2004/07/30 17:55:00 CDT
1116 :     Tag: blume-20040730-various
1117 :     Description:
1118 :    
1119 :     Gearing up towards 110.47...
1120 :    
1121 :     - various minor bugfixes to ml-nlffigen
1122 :     - a beginning of a manual for nlffi
1123 :    
1124 :     - eliminated 'export name=value' in config/install.sh as this does
1125 :     not work with certain versions of /bin/sh
1126 :     (Thanks to David King at Motorola for catching this.)
1127 :    
1128 :     - several bugfixes provided or suggested by David Hansel at Reactive Systems:
1129 :     - added a test for tm==NULL to gmtime.c and localtime.c
1130 :     - applied patch for incorrect GetFileTime under win32
1131 :     - toSeconds -> toMilliseconds in Win32/win32-process.sml
1132 :    
1133 :     ----------------------------------------------------------------------
1134 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1135 : mblume 1557 Date: 2004/07/21 18:20:00 CDT
1136 :     Tag: blume-20040721-nlffigen
1137 :     Description:
1138 :    
1139 :     - Fixed minor issue in ml-nlffigen: Now generate structure T_foo
1140 :     for a typedef to an incomplete type, but leave out the "typ" member.
1141 :     (This is just for consistency.)
1142 :     - Started to produce what is supposed to become better (i.e., comprehensive)
1143 :     documentation of what ml-nlffigen does and produces.
1144 :    
1145 :     ----------------------------------------------------------------------
1146 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1147 : mblume 1548 Date: 2004/07/14 16:25:00 CDT
1148 :     Tag: blume-20040714-union
1149 :     Description:
1150 :    
1151 :     Added C_UNION to c-calls/c-types.sml and updated the machinery
1152 :     (ml-nlffigen, cproto.sml) that conveys C function interface
1153 :     information to the code generator.
1154 :    
1155 :     However, the actual architecture-specific implementation of function
1156 :     arguments and results that are C unions is still not implemented.
1157 :    
1158 :     ----------------------------------------------------------------------
1159 : allenleung 1539 Name: Allen Leung (leunga (at) reservoir (dot) com)
1160 : allenleung 1546 Date: 2004/07/14 14:38:00 EST
1161 :     Tag: leunga-110_46_1-ppc-lwzu
1162 :     Description:
1163 :    
1164 :     Added these instructions to the PowerPC architecture:
1165 :     LBZU(X), LHZU(X), LWZU(X),
1166 :     STWU(X), STFDU, STFSU
1167 :    
1168 :     etc...
1169 :    
1170 :     Note: I haven't added their instruction encoding into the description.
1171 :    
1172 :     ----------------------------------------------------------------------
1173 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
1174 : allenleung 1539 Date: 2004/07/13 15:04:00 EST
1175 :     Tag: leunga-110_46_1-ppc-lwarx
1176 :     Description:
1177 :    
1178 :     Added the two instructions LWARX and STWCX to the PowerPC
1179 :     instruction set.
1180 :    
1181 :     A (untested) rewrite of loop-structure.sml. The old version
1182 :     is completely broken.
1183 :    
1184 :     ----------------------------------------------------------------------
1185 : mblume 1479 Name: Matthias Blume (blume (at) tti - c (dot) org)
1186 : mblume 1537 Date: 2004/07/13 13:50:00 CDT
1187 :     Tag: blume-20040713-nlffi
1188 :     Description:
1189 :    
1190 :     - use paramAlloc to report c-calls with too many arguments
1191 :     (for PPC version where parameter area is pre-allocated)
1192 :     - added ccall_maxargspace to machspec (to implement the above)
1193 :     - made "make" commend in CM's "make" tool configurable
1194 :     - added option (default: on) for passing the name of the SML/NJ's "bin"
1195 :     directory to "make"; the call looks like this:
1196 :    
1197 :     make <options> SMLNJ_BINDIR=<dir> <target>
1198 :    
1199 :     This can be used by the Makefile to, e.g., pick the "right" version
1200 :     of ml-nlffigen.
1201 :     - minor code tweaks
1202 :    
1203 :     ----------------------------------------------------------------------
1204 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1205 : mblume 1532 Date: 2004/07/12 22:50:00 CDT
1206 :     Tag: blume-110_46_1-macosx-nlffi
1207 :     Description:
1208 :    
1209 :     NLFFI under Mac OS X now working (sort of). This is largely untested,
1210 :     though.
1211 :    
1212 :     Note: 1. You have to make a new, clean build of the runtime system.
1213 :     2. There are new BOOTFILES, you have to use them!
1214 :     (Doing the bootstrap process yourself would be *very* painful!
1215 :     If you absolutely have to do it, build the system under
1216 :     a different architecture and then cross-compile.)
1217 :    
1218 :     Version bumped to 110.46.1 to account for runtime data format changes.
1219 :    
1220 :     ----------------------------------------------------------------------
1221 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1222 : mblume 1515 Date: 2004/06/18 14:30:00 CDT
1223 :     Tag: blume-20040618-unix
1224 :     Description:
1225 :    
1226 :     Changed the implementation of structure Unix so that the same stream
1227 :     is returned every time one of the {text,bin}{In,Out}streamOf functions
1228 :     is invoked on the same proc. This is not what the spec currently
1229 :     says -- although IMO it arguably should. (See discussion below.)
1230 :    
1231 :     ----------------------------------------------------------------------
1232 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1233 : mblume 1507 Date: 2004/06/17 18:15:00 CDT
1234 :     Tag: Release_110_46
1235 :     Description:
1236 :    
1237 :     New working version (110.46). NEW BOOTFILES!
1238 :    
1239 :     ----------------------------------------------------------------------
1240 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1241 : mblume 1506 Date: 2004/06/17 17:20:00 CDT
1242 :     Tag: blume-20040617-timer-unix
1243 :     Description:
1244 :    
1245 :     Changed the interface of structures Timer and Unix to match the most
1246 :     recent Basis spec.
1247 :    
1248 :     In the case of Unix there still seems to be an open/weird issue:
1249 :    
1250 :     The {text,bin}{In,Out}streamOf functions are supposed to create
1251 :     fresh streams whenever they are called -- as opposed to have them
1252 :     return the same stream every time. This design is supposed to
1253 :     prevent space leaks caused by proc values hanging on to streams.
1254 :    
1255 :     The reap function, on the other hand, is supposed to close the
1256 :     streams. This cannot be done without having a handle on the
1257 :     stream in proc after all...
1258 :    
1259 :     I took the liberty to implement the following stopgap solution:
1260 :    
1261 :     The proc value hangs on to the most recently created stream(s).
1262 :     Reap closes those. If either or both of the two streams hadn't
1263 :     been created at all yet, then reap will close the corresponding
1264 :     file descriptors directly.
1265 :    
1266 :     PS: I don't understand the original space leak argument anymore. If
1267 :     a proc hangs on to the imperative stream, then I/O operations on those
1268 :     will advance the state of the cached stream and avoid the space leak.
1269 :    
1270 :     ----------------------------------------------------------------------
1271 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1272 : mblume 1500 Date: 2004/05/28 16:45:00 CDT
1273 :     Tag: blume-20040528-basis
1274 :     Description:
1275 :    
1276 :     Added signature PACK_REAL and exported functor PrimIO.
1277 :    
1278 :     ----------------------------------------------------------------------
1279 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1280 : mblume 1498 Date: 2004/05/25 16:00:00 CDT
1281 :     Tag: blume-20040525-group-owner
1282 :     Description:
1283 :    
1284 :     CM now ignores (but still accepts) the "owner" information in group
1285 :     descriptions. The owner of a group is its next enclosing
1286 :     library. Each group must have a unique owner. (There is a virtual
1287 : mblume 1505 "toplevel" library that owns groups which are not nested within a real
1288 : mblume 1498 library.) Previously, each group had to explicitly declare its owner,
1289 :     and CM would check that such a declaration is correct. The new scheme
1290 :     is to have CM check that for each group there is precisely one owning
1291 :     library.
1292 :    
1293 :     The advantage of the new scheme is that the programmer no longer needs
1294 :     to maintain the somewhat annoying owner information. The downside is
1295 :     that CM cannot enforce the ownership rule across multiple runs of
1296 :     CM.make. Fortunately, enclosing the same group in two different
1297 :     libraries A and B which are not part of the same program does not
1298 :     cause real problems.
1299 :    
1300 :     ----------------------------------------------------------------------
1301 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1302 : mblume 1496 Date: 2004/05/20 16:00:00 CDT
1303 :     Tag: blume-20040520-win32
1304 :     Description:
1305 :    
1306 :     Made the win32 version work again. (Strangely, a misplaced comma had
1307 :     slipped into win32-process.c which prevented the runtime from being
1308 :     compiled correctly.)
1309 :    
1310 :     Also, included a minor addition to ml-build.bat analogous to what was
1311 :     done in blume-20040519-ml-build.
1312 :    
1313 :     ----------------------------------------------------------------------
1314 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1315 : mblume 1494 Date: 2004/05/19 22:10:00 CDT
1316 :     Tag: blume-20040519-ml-build
1317 :     Description:
1318 :    
1319 :     Arranged for ml-build to clean up after itself a little bit better.
1320 :     The script generates a temporary SML source file and compiles it using
1321 :     CM, so CM generates metadata (GUID, SKEL, objectfile) for it. It now
1322 :     gets rid of those at the end, so they don't accumulate under .cm.
1323 :    
1324 :     This required a minor change to install.sh because the name of the
1325 :     metadata directory (default: .cm) is actually configurable at
1326 :     installation time.
1327 :    
1328 :     ----------------------------------------------------------------------
1329 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1330 : mblume 1491 Date: 2004/05/18 15:50:00 CDT
1331 :     Tag: blume-20040518-mkreader
1332 :     Description:
1333 :    
1334 :     Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
1335 :     implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
1336 :    
1337 :     ----------------------------------------------------------------------
1338 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1339 : mblume 1489 Date: 2004/05/11 14:35:00 CDT
1340 :     Tag: blume-20040511-win32sock
1341 :     Description:
1342 :    
1343 :     Added previously missing support for many socket-related functions
1344 :     under win32. Thanks to David Hansel <hansel@reactive-systems.com>
1345 :     for the voluminous patch!
1346 :    
1347 :     (I have not tested this patch under win32 yet.)
1348 :    
1349 : mblume 1490 Here is David's e-mail:
1350 :    
1351 :     Hi,
1352 :    
1353 :     Attached to this email you find a diff against sml/nj 110.45
1354 :     that will enable socket support under Windows.
1355 :    
1356 :     To apply the patch (using unix or cygwin)
1357 :     1) gunzip runtime.diff.gz
1358 :     2) "cd" into "src/runtime" in the source tree of a fresh
1359 :     110.45 installation.
1360 :     3) patch -p 1 < [your/path/to]runtime.diff
1361 :    
1362 :     The code compiles fine but has NOT yet been extensively tested.
1363 :     I only ran a few tests for basic socket client functionality
1364 :     (which worked fine). Especially the functions that use ioctl
1365 :     are not tested at all and might not work (see below).
1366 :    
1367 :     I implemented this since we want to move to a newer version of sml/nj
1368 :     but need socket support in order to use it. This is the first time I
1369 :     even had a look at the sml/nj source, so please review my changes
1370 :     before making this part of the distribution! Here are a few issues
1371 :     that I think might be better for someone to solve who is more
1372 :     familiar with the sml/nj source (and socket programming):
1373 :    
1374 :     - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
1375 :     exception since I could not figure out what the windows equivalent
1376 :     of these functions is
1377 :    
1378 :     - In sockets-osdep.h there are a some #include statements that are
1379 :     only used in a few files that include sockets-osdep.h
1380 :    
1381 :     - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
1382 :     does not process its return value since I don't know how to
1383 :     report an error upwards.
1384 :    
1385 :     - It would probably be good to have a call to WSACleanup() when
1386 :     the library is unloaded (if there is such a possibility).
1387 :     Otherwise I think Windows will take care of this automatically
1388 :     when the process finishes.
1389 :    
1390 :     - I used ioctlsocket() as a replacement for ioctl() but I have
1391 :     no idea if that is actually the proper replacement on Windows.
1392 :    
1393 :     - All these issues are marked in the code by "FIXME" comments.
1394 :    
1395 :     We use sml/nj extensively in our products and are quite happy
1396 :     with it. I hope this contribution will help you.
1397 :    
1398 :     Keep up the good work!
1399 :    
1400 :     David
1401 :    
1402 : mblume 1489 ----------------------------------------------------------------------
1403 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1404 : mblume 1488 Date: 2004/05/11 14:20:00 CDT
1405 :     Tag: blume-20040511-installml
1406 :     Description:
1407 :    
1408 :     Fixed two bugs in installml script. (Thanks to Vesa A. Norrman for
1409 :     the patch.)
1410 :    
1411 :     ----------------------------------------------------------------------
1412 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1413 : mblume 1487 Date: 2004/05/11 14:05:00 CDT
1414 :     Tag: blume-20040511-nlffi-netbsd
1415 :     Description:
1416 :    
1417 :     Added support for nlffi under netbsd. (Thanks to Vesa A. Norrman for
1418 :     the patch.)
1419 :    
1420 :     ----------------------------------------------------------------------
1421 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1422 : mblume 1486 Date: 2004/05/11 12:05:00 CDT
1423 :     Tag: blume-20040511-exports
1424 :     Description:
1425 :    
1426 :     As per request by Adam Chlipala <adam@hcoop.net>, extended various
1427 :     export lists in compiler-related .cm-files.
1428 :    
1429 :     ----------------------------------------------------------------------
1430 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1431 : mblume 1485 Date: 2004/05/11 11:35:00 CDT
1432 :     Tag: blume-20040511-allsource
1433 :     Description:
1434 :    
1435 :     The installer now honors the "src-smlnj" target again, although its meaning
1436 :     has changed from "all sources required for the compiler" to "all sources
1437 :     the installer knows about". In other words, if you enable "src-smlnj"
1438 :     in the "targets" file, then the installer will pull in sources for
1439 :     everything. (Notice that this refers to source code only. Compiled
1440 :     code is still only installed for modules that were requested explicitly
1441 :     or which are required for other modules that were requested explicitly.)
1442 :    
1443 :     ----------------------------------------------------------------------
1444 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1445 : mblume 1482 Date: 2004/04/23 17:40:00 CDT
1446 :     Tag: blume-20040423-ieee-scan
1447 :     Description:
1448 :    
1449 :     Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
1450 :     in the exponent calculation we get INF or ZERO (depending on the mantissa
1451 :     and the sign of the exponent).
1452 :    
1453 :     ----------------------------------------------------------------------
1454 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1455 : mblume 1480 Date: 2004/04/23 10:40:00 CDT
1456 :     Tag: blume-20040423-ml-build
1457 :     Description:
1458 :    
1459 :     The ml-build script now terminates with a non-0 status when something
1460 :     goes wrong.
1461 :    
1462 :     ----------------------------------------------------------------------
1463 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1464 : mblume 1479 Date: 2004/04/22 16:35:00 CDT
1465 :     Tag: blume-20040422-Option
1466 :     Description:
1467 :    
1468 :     Made exception Option to be the same as exception Option.Option
1469 :     (as it should be).
1470 :    
1471 :     ----------------------------------------------------------------------
1472 : allenleung 1468 Name: Allen Leung (leunga (at) reservoir (dot) com)
1473 :     Date: 2004/03/19 14:40:00 EST
1474 :     Tag: leunga-20040319-cygwin-nlffi
1475 :     Description:
1476 :    
1477 :     Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
1478 :     of SML/NJ. The problem is that
1479 :    
1480 :     lib = dlopen(NULL, ...)
1481 :     f = dlsym(lib, "malloc");
1482 :    
1483 :     does not work on Windows unless we explicitly export symbols
1484 :     such as 'malloc' during linking. We fixed this by explicitly
1485 :     exporting the required symbols with the magic gcc incantation:
1486 :    
1487 :     -Wl,--export-all cygwin.def
1488 :    
1489 :     where cygwin.def is a file containing all the symbols that
1490 :     we wish to export.
1491 :    
1492 :     I suspect this is a Windows problem and we'll have to
1493 :     do the same (somehow with windows compilers) when
1494 :     we build the native win32 version with the system
1495 :     calls LoadLibrary/GetProcAddress.
1496 :    
1497 :     ----------------------------------------------------------------------
1498 : mblume 1384 Name: Matthias Blume (blume (at) tti - c (dot) org)
1499 : mblume 1465 Date: 2004/03/04 16:35:00 CST
1500 :     Tag: blume-20040304-intinf-fmt
1501 :     Description:
1502 :    
1503 :     Fixed problem with IntInf.fmt (sign would show up on the right instead
1504 :     of on the left for BIN, OCT, and HEX).
1505 :    
1506 :     ----------------------------------------------------------------------
1507 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1508 : mblume 1464 Date: 2004/03/04 11:25:00 CST
1509 :     Tag: blume-20040304-symlinks
1510 :     Description:
1511 :    
1512 :     Fixed problem with installer script (unix only) where bin/ml-yacc and
1513 :     friends pointed (via symlinks) to absolute locations instead of just
1514 :     .run-sml. This was reported by Vesa A Norrman.
1515 :    
1516 :     ----------------------------------------------------------------------
1517 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1518 : mblume 1455 Date: 2004/02/13 14:50:00 CST
1519 :     Tag: Release_110_45
1520 :     Description:
1521 :    
1522 :     New working version (110.45). New bootfiles.
1523 :    
1524 :     ----------------------------------------------------------------------
1525 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1526 : mblume 1448 Date: 2004/01/26 15:15:15 CST
1527 :     Tag: blume-20040126-toplevel
1528 :     Description:
1529 :    
1530 :     Improved handling of exceptions at the interactive toplevel.
1531 :    
1532 :     ----------------------------------------------------------------------
1533 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1534 :     Date: 2004/01/26 11:25:00
1535 : mblume 1446 Tag: blume-20040126-app
1536 :     Description:
1537 :    
1538 :     Type of top-level "app" corrected.
1539 : mblume 1447 Added code for setting vp_limitPtrMask to Win32-specific runtime.
1540 : mblume 1446
1541 :     ----------------------------------------------------------------------
1542 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1543 : mblume 1427 Date: 2003/11/18 17:10 CST
1544 :     Tag: blume-20031118-basis-fiddle
1545 :     Description:
1546 :    
1547 :     - changed Timer interface to what might become the spec
1548 :     - POSIX_FLAGS -> BIT_FLAGS according to spec
1549 :     - some other minor discrepancies wrt. spec eliminated
1550 :    
1551 :     ----------------------------------------------------------------------
1552 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1553 : mblume 1414 Date: 2003/11/06 12:00:00 CST
1554 :     Tag: Release_110_44
1555 :     Description:
1556 :    
1557 :     New working version (110.44). New bootfiles.
1558 :    
1559 :     ----------------------------------------------------------------------
1560 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1561 : mblume 1411 Date: 2003/11/04 11:50:00 CST
1562 :     Tag: blume-20031104-move-libraries
1563 :     Description:
1564 :    
1565 :     Eliminated the "dont_move_libraries" directive in config/targets.
1566 :     (The mechanism was broken and could not be fixed easily. Moreover,
1567 :     there does not seem to be any reason not to move all libraries into
1568 :     lib during installation. I originally implemented this directive as a
1569 :     backward-compatibility feature when I first introduced the new CM.
1570 :     Now that things have been stable for a long time and going back to the
1571 :     old CM is not an option, there is no reason to keep it around.)
1572 :    
1573 :     ----------------------------------------------------------------------
1574 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1575 : mblume 1409 Date: 2003/11/03 16:00:00 CST
1576 :     Tag: blume-20031103-installdir
1577 :     Description:
1578 :    
1579 :     Made installer honor INSTALLDIR variable again. (Thanks to Chris
1580 :     Richards for pointing out the problem and providing the solution.)
1581 :    
1582 :     ----------------------------------------------------------------------
1583 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1584 : mblume 1400 Date: 2003/10/01 17:05:00 CDT
1585 :     Tag: blume-20031001-lal-mlrisc
1586 :     Description:
1587 :    
1588 :     MLRISC bug fix from Lal.
1589 :    
1590 :     ----------------------------------------------------------------------
1591 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1592 : mblume 1399 Date: 2003/09/30 16:10:00 CDT
1593 :     Tag: blume-20030930-primio-bat
1594 : mblume 1398 Description:
1595 :    
1596 :     1. Added openVector, nullRd, and nullWr to PRIM_IO.
1597 :     2. Improved .bat files (for Win32 port) to make things work under Win95.
1598 :     (thanks to Aaron S. Hawley for this one)
1599 :    
1600 :     ----------------------------------------------------------------------
1601 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1602 : mblume 1395 Date: 2003/09/26 16:05:00 CDT
1603 :     Tag: blume-20030926-wrappriv
1604 :     Description:
1605 :    
1606 :     Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
1607 :    
1608 :     ----------------------------------------------------------------------
1609 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1610 : mblume 1394 Date: 2003/09/26 15:00:00 CDT
1611 :     Tag: blume-20030926-110_43_3
1612 :     Description:
1613 :    
1614 :     - additional cleanup
1615 :     - version number bump, NEW BOOTFILES
1616 :    
1617 :     ----------------------------------------------------------------------
1618 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1619 : mblume 1393 Date: 2003/09/26 12:00:00 CDT
1620 :     Tag: blume-20030926-ppautoload
1621 :     Description:
1622 :    
1623 :     I modified the read-eval-print loop so that the autoloader gets
1624 :     invoked whenever the prettyprinter tries to look up a symbol that
1625 :     is not currently defined in the toplevel environment but which
1626 :     appears in CM's autoload registry. As a result, we see far fewer of
1627 :     those ?.Foo.Bar.xxx names in the prettyprinter's output.
1628 :    
1629 :     In addition to this I tried to clean up some pieces of the Basis
1630 :     implementation (e.g., Socket, Word8Array) in order to prevent other
1631 :     instances of these ?.Foo.Bar.xxx names from being printed.
1632 :    
1633 :     The mechanism that picks names for types still needs some work, though.
1634 :     (Right now it seems that if there is a type A.t which is defined to
1635 : mblume 1394 be B.u, but B is unavailable at toplevel, then A.t gets printed as
1636 :     "?.B.u" although the perhaps more sensible solution would be to use
1637 : mblume 1393 "A.t" in this case. In other words, the prettyprinter should follow
1638 :     a chain of DEFtycs not farther than there are corresponding toplevel
1639 :     names in the current environment.)
1640 :    
1641 :     ----------------------------------------------------------------------
1642 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1643 : mblume 1391 Date: 2003/09/24 16:31:00 CDT
1644 :     Tag: blume-20030924-installer
1645 :     Description:
1646 :    
1647 :     Another installer tweak: All the ML code for the installer is now
1648 :     compiled during CMB.make and put into a little library called
1649 :     $smlnj/installer.cm. The installation then simply invokes
1650 :    
1651 :     sml -m $smlnj/installer.cm
1652 :    
1653 :     and everything happens automagically.
1654 :    
1655 :     Win32: ML code senses value of environment variable SMLNJ_HOME.
1656 :     Unix: ML code senses values of environment variables ROOT, CONFIGDIR,
1657 :     and BINDIR.
1658 :    
1659 :     The new scheme guarantees that the ML code responsible for the installation
1660 :     is in sync with the APIs of the main system. Also, the installer is
1661 :     somewhat faster because the installer script is precompiled.
1662 :    
1663 :     ----------------------------------------------------------------------
1664 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1665 : mblume 1390 Date: 2003/09/24 15:35:00 CDT
1666 :     Tag: blume-20030924-synsock
1667 :     Description:
1668 :    
1669 :     Added a signature SYNCHRONOUS_SOCKET to basis.cm. This is like SOCKET
1670 :     but excludes all non-blocking operations. Defined SOCKET (in Basis)
1671 :     and CML_SOCKET in terms of SYNCHRONOUS_SOCKET. Removed superfluous
1672 :     implementations of non-blocking operations from CML's Socket
1673 :     structure.
1674 :    
1675 :     ----------------------------------------------------------------------
1676 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1677 : mblume 1389 Date: 2003/09/24 15:10:05 CDT
1678 :     Tag: blume-20030924-sockets
1679 :     Description:
1680 :    
1681 :     1. Fixed SOCKET API and implementation to match Basis spec.
1682 :     This required changing the internal representation of sockets to one
1683 :     that remembers (for each socket file descriptor) whether it is currently
1684 :     blocking or non-blocking. This state is maintained lazily (i.e., a system
1685 :     call is made only if the state actually needs to change).
1686 :    
1687 :     2. OS-specific details of sockets were moved into separate files, thus
1688 :     making it possible to unify the bulk of the socket implementations
1689 :     between Unix and Win32.
1690 :    
1691 :     3. CML's socket API changed accordingly.
1692 :     (Note that we need to remove non-blocking functions from this API
1693 :     since they are redundant in the case of CML!)
1694 :    
1695 :     4. CML's socket implementation now makes use of non-blocking functions
1696 :     provided by Basis, thus removing all OS-dependent code from this part
1697 :     of CML.
1698 :    
1699 :     5. Changed Real64.precision from 52 to 53. Minor cleanup in Real64 code.
1700 :    
1701 :     ----------------------------------------------------------------------
1702 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1703 : mblume 1387 Date: 2003/09/22 12:10:00 CDT
1704 : mblume 1388 Tag: blume-20030922-110_43_2
1705 : mblume 1387 Description:
1706 :    
1707 :     Made a new interim version and bootfiles for developer's bootstrapping
1708 :     convenience.
1709 :    
1710 :     110.43.2 -- NEW BOOTFILES
1711 :    
1712 :     ----------------------------------------------------------------------
1713 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1714 : mblume 1385 Date: 2003/09/19 15:55:00 CDT
1715 :     Tag: blume-20030919-cmdir
1716 :     Description:
1717 :    
1718 :     1. new-install.sh -> install.sh
1719 :     2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
1720 :     3. tweaked installer so that another name instead of .cm can be chosen
1721 :     at install time (by setting the CM_DIR_ARC environment variable
1722 :     during installation); once installation is complete, the name is
1723 :     fixed
1724 :    
1725 :     ----------------------------------------------------------------------
1726 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1727 : mblume 1384 Date: 2003/09/18 16:00:00 CDT
1728 :     Tag: blume-20030918-110_43_1
1729 :     Description:
1730 :    
1731 :     Made a new interim version and bootfiles for developer's bootstrapping
1732 :     convenience.
1733 :    
1734 :     110.43.1 -- NEW BOOTFILES
1735 :    
1736 :     ----------------------------------------------------------------------
1737 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1738 : mblume 1383 Date: 2003/09/18 15:20:00 CDT
1739 :     Tag: blume-20030918-misc
1740 :     Description:
1741 :    
1742 :     1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
1743 :     this seems to be controversial at the moment) and used those in
1744 :     Posix.ProcEnv.times.
1745 :    
1746 :     2. Added Time.{from,to}Nanoseconds to Time.
1747 :    
1748 :     3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
1749 :     For example, fromLargeInt never needs to look at more than 3 "big
1750 :     digits" to get its 53 bits of precision.
1751 :    
1752 :     ----------------------------------------------------------------------
1753 : mblume 1384 Name: Matthias Blume (blume (at) tti - c (dot) org)
1754 : mblume 1381 Date: 2003/09/17 16:30:00 CDT
1755 :     Tag: blume-20030917-real32-slices
1756 :     Description:
1757 :    
1758 :     Added an entry to the primitive environment
1759 :     (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
1760 :     added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
1761 :    
1762 :     Removed some of the "magic" constants in real64.sml and replaced them
1763 :     with code that generates these values from their corresponding
1764 :     integer counterparts.
1765 :    
1766 :     Made all(?) the slice-related changes to the Basis and made everything
1767 :     compile again...
1768 :    
1769 :     ----------------------------------------------------------------------
1770 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
1771 : mblume 1375 Date: 2003/09/15 17:45:00 CDT
1772 :     Tag: blume-20030915-rbase
1773 :     Description:
1774 :    
1775 :     Fixed bug in Real.fromLargeInt.
1776 :    
1777 :     ----------------------------------------------------------------------
1778 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1779 : mblume 1369 Date: 2003/09/13 18:11:00 CDT
1780 :     Tag: blume-20030913-libinstall
1781 :     Description:
1782 :    
1783 :     Minor bugfix in config/libinstall (set anchor with path to
1784 :     standalone tool after installing it, otherwise libraries that
1785 :     need ml-lex or ml-yacc won't compile the first time the installer
1786 :     runs).
1787 :    
1788 :     ----------------------------------------------------------------------
1789 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1790 : mblume 1368 Date: 2003/09/12 11:45:00 CDT
1791 :     Tag: blume-20030912-various
1792 :     Description:
1793 :    
1794 :     - fixed bug in Real.toLargeInt
1795 :     - fixed bug in Posix.ProcEnv.times
1796 :     - changed inputLine functions to return an option
1797 :     - minor installer improvements / bugfixes
1798 :     - changed default @SMLalloc parameter for x86/celeron to 64k
1799 :    
1800 :     ----------------------------------------------------------------------
1801 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1802 : mblume 1356 Date: 2003/09/09 22:00:00 CDT
1803 :     Tag: Release_110_43
1804 :     Description:
1805 :    
1806 :     New working release 110.43. New bootfiles.
1807 :    
1808 :     ----------------------------------------------------------------------
1809 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
1810 : mblume 1354 Date: 2003/09/09 19:20:00 CDT
1811 :     Tag: blume-20030909-installer
1812 :     Description:
1813 :    
1814 :     Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
1815 :     Modified config/install.bat to take advantage of it. Also modified
1816 :     config/install.sh (and called it config/new-install.sh) to take advantage
1817 :     of it on Unix systems. (The SML code is (supposed to be) platform-
1818 :     independent.)
1819 :    
1820 :     The installer can now install everything under Win32
1821 :     as well as under *nix as long as it compiles.
1822 :    
1823 :     Other changes:
1824 :    
1825 :     - made CML compile again under Win32
1826 :     - made eXene compile under Win32 (by providing a fake structure UnixSock
1827 :     and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
1828 :     - fixed a bug in nowhere: it assumed that type OS.Process.status is the
1829 :     same as type int; under Win32 it isn't
1830 :     - fixed some slice-related problems in the win32-specific parts of CML
1831 :     - added a functor argument "sameVol" to os-path-fn.sml in the Basis
1832 :     (under Win32, the volume name is case-insensitive, and the
1833 :     OS.Path code compares volume names for equality)
1834 :    
1835 :     ----------------------------------------------------------------------
1836 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
1837 : mblume 1353 Date: 2003/09/08 11:55:00 CDT
1838 :     Tag: blume-20030908-fullpath
1839 :     Description:
1840 :    
1841 :     Made Win32 version of OS.FileSys.fullPath return current directory
1842 :     when given an empty string. This is what the spec says, and incidentally,
1843 :     CM depends on it. (CM otherwise goes into an infinite loop in certain
1844 :     cases when presented with the name of a non-existing .cm file.)
1845 :    
1846 :     ----------------------------------------------------------------------
1847 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
1848 : mblume 1350 Date: 2003/09/04 16:30:00 CDT
1849 : mblume 1352 Tag: blume-20030905-slices-etc
1850 : mblume 1350 Description:
1851 :    
1852 :     1. Changed interface to vectors and arrays in Basis to match
1853 :     (draft) Basis spec.
1854 :     2. Added signatures and implementations of slices according to
1855 :     Basis spec.
1856 :     3. Edited source code throughout the system to make it compile again
1857 :     under 1. and 2. (In some cases code had to be added to have it
1858 :     match the new signatures.)
1859 :     4. MLRISC should be backward-compatible: the copies of the originals
1860 :     of files that needed to change under 3. were retained, the .cm files
1861 :     check the compiler version number and use old versions when
1862 :     appropriate.
1863 :     5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
1864 :     dirstream -> string option (in accordance with Basis spec).
1865 :     6. When generating code that counts lines, ml-lex used function
1866 :     CharVector.foldli, taking advantage of its old interface.
1867 :     This has been replaced with the corresponding code from
1868 :     CharVectorSlice. (html-lex must be re-lexed!)
1869 :     7. BitArray in smlnj-lib/Util has been extended/modified to match the
1870 :     new MONO_ARRAY signature. (Do we need BitArraySlice?)
1871 :     8. Removed temporary additions (fromInternal, toInternal) from the
1872 :     (now obsolete) IntInf in smlnj-lib/Util.
1873 :     9. Cleaned up structure Byte.
1874 :     10. Added localOffset, scan, and fromString to Date (according to spec).
1875 :     Cleaned/corrected implementation of Date.
1876 :     (Still need to check for correctness; implement better canonicalizeDate.)
1877 :     11. Added "scan" to signature IEEE_REAL.
1878 :     12. Some improvements to IntInf [in particular: efficiency-hack for
1879 :     mod and rem when second operand is 2 (for parity checks).]
1880 :     13. Changed representation of type Time.time, using a single IntInf.int
1881 :     value counting microseconds. This considerably simplified the
1882 :     implementation of structure Time. We now support negative time
1883 :     values; scan and fromString handle signs.
1884 :     14. Functor PrimIO now takes two additional arguments (VectorSlice and
1885 :     ArraySlice).
1886 :    
1887 :     ----------------------------------------------------------------------
1888 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
1889 : mblume 1347 Date: 2003/08/28 17:00:00 CDT
1890 :     Tag: blume-20030828-intinf
1891 :     Description:
1892 :    
1893 :     This is a major update which comes with a version number bump
1894 :     (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
1895 :     and an implementation of IntInf in the Basis.
1896 :    
1897 :     There are a fairly large number of related changes and updates throughout
1898 :     the system:
1899 :    
1900 :     Basis:
1901 :     - Implemented IntInf.
1902 :     - Made LargeInt a projection of IntInf (by filtering through INTEGER).
1903 : mblume 1348 - Added some missing Real64 operations, most notably Real.toLargeInt.
1904 : mblume 1347 - Added FixedInt as a synonym for Int32.
1905 :    
1906 :     compiler:
1907 :     * Added support for a built-in intinf type.
1908 :     - literals
1909 :     - pattern matching
1910 :     - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
1911 :     - overloading on literals and operations
1912 :    
1913 :     This required adding a primitive type intinf, some additional
1914 :     primops, and implementations for several non-trivial intinf
1915 :     operations in Core. (The intinf type is completely abstract
1916 :     to the compiler; all operations get delegated back to the Core.)
1917 :    
1918 :     * Intinf equality is handled by polyequal. However, the compiler
1919 :     does not print its usual warning in this case (since polyequal
1920 :     is the right thing to do there).
1921 :    
1922 :     * Improved the organization of structure InlineT.
1923 :    
1924 :     * A word about conversion primops:
1925 :     If conversions involving intinf do not cancel out during
1926 : mblume 1348 CPS contract, then the compiler must insert calls to Core functions.
1927 : mblume 1347 Since all core access must be resolved already during the FLINT
1928 :     translate phase, it would be too late a the time of CPS contract
1929 : mblume 1348 to add new Core calls. For this reason, conversion primops
1930 : mblume 1347 for intinf carry two arguments: 1. the numeric argument that
1931 :     they are supposed to convert, and 2. the Core function that
1932 :     can help with this conversion if necessary. If CPS contract
1933 : mblume 1348 eliminates a primop, then the associated Core function becomes
1934 :     dead and goes away. Intinf conversion primops that do not get
1935 :     eliminated by CPS contract get rewritten into calls of their
1936 :     core functions by a separate, new phase.
1937 : mblume 1347
1938 :     interactive system:
1939 :     - Control.Print.intinfDepth controls max length of intinf constants
1940 :     being printed. (Analogous to Control.Print.stringDepth.)
1941 :     - Cleanup in printutil and pputil: got rid of unused stuff and
1942 :     duplicates; replaced some of the code with code that makes better
1943 :     use of library functionality.
1944 :    
1945 :     CM:
1946 :     Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
1947 :     are no longer silent.
1948 :    
1949 :     CKIT:
1950 :     Fixed mismatched uses of Int32 and LargeInt. I always decided
1951 :     in favor of LargeInt -- which is now the same as IntInf.
1952 :     CKIT-knowledgable people should check whether this is what's
1953 :     intended and otherwise change things back to using Int32 or
1954 :     FixedInt.
1955 :    
1956 :     Throughout the code:
1957 : mblume 1348 Started using IntInf.int literals and built-in operations
1958 : mblume 1347 (e.g., comparison with 0) where this seems appropriate.
1959 :    
1960 :    
1961 :     ----------------------------------------------------------------------
1962 : macqueen 1343 Name: Dave MacQueen (dbm@cs.uchicago.edu)
1963 :     Date: 2003/08/13 11:36:00 CDT
1964 :     Tag: dbm-20030813-mcz-merge1
1965 :     Description:
1966 :    
1967 :     Merging changes from the mcz-branch development branch into trunk.
1968 :     These changes involve replacement of the emulated old prettyprinter
1969 :     interface with direct use of the SML/NJ Lib PP library, and fixing
1970 :     of a couple of bugs (895, 1186) relating to error messages. A new
1971 :     prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
1972 :     has been added.
1973 :    
1974 :     ----------------------------------------------------------------------
1975 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
1976 : mblume 1342 Date: 2003/08/11 15:45:00 CDT
1977 :     Tag: blume-20030811-windows
1978 :     Description:
1979 :    
1980 :     Version number bumped to 110.42.9. NEW BOOTFILES!!!
1981 :    
1982 :     http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
1983 :    
1984 :     This patch restores SML/NJ's ability to run under win32. There are a
1985 :     number of changes, including fixes for several bugs that had gone
1986 :     unnoticed until now:
1987 :    
1988 :     - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
1989 :     trying to run the win32 version from within cygwin.)
1990 :    
1991 :     - There are a number of simple .bat scripts that substitute for their
1992 :     corresponding Unix shell-scripts. (See below.)
1993 :    
1994 :     - The internals of ml-build have been modified slightly. The main
1995 :     difference is that instead of calling ".link-sml" (or link-sml.bat)
1996 :     using OS.Process.system, the ML process delegates this task back
1997 :     to the script. Otherwise problems arise in mixed environments such
1998 :     as Cygwin where scripts look and work like Unix scripts, but
1999 :     where OS.Process.system cannot run them.
2000 :    
2001 :     - In CM, the srcpath pickler used native pathname syntax -- which
2002 :     is incorrect in the case of cross-compilation. The new pickle format
2003 :     is independent of platform-specific naming conventions.
2004 :    
2005 :     - Path configuration files (such as lib/pathconfig) can now choose
2006 :     between native and standard syntax. Placing a line of the form
2007 :    
2008 :     standard!
2009 :    
2010 :     into the file causes all subsequent paths to be interpreted using
2011 :     CM standard pathname syntax (= Unix conventions); a line
2012 :    
2013 :     native!
2014 :    
2015 :     switches back to native style. This was needed so that
2016 :     path config files can be written portably, see src/system/pathconfig.
2017 :    
2018 :     - Runtime system:
2019 :    
2020 :     - win32-filesys.c: get_file_time and set_file_time now
2021 :     access modification time, not creation time.
2022 :    
2023 :     - I/O code made aware of new array representation.
2024 :    
2025 :     - Bug fixes in X86.prim.masm.
2026 :    
2027 :     - src/system/makeml made aware of win32. (For use under cygwin
2028 :     and other Unix-environments for windows.)
2029 :    
2030 :     - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
2031 :     which caused BinIO.inputAll to fail consistently.
2032 :    
2033 :     .bat scripts:
2034 :    
2035 :     Windows .bat scripts assume that SMLNJ_HOME is defined.
2036 :    
2037 :     - sml.bat, ml-yacc.bat, ml-lex.bat: Driver scripts for standalone
2038 :     applications (sml, ml-yacc, ml-lex).
2039 :     - ml-build.bat: analogous to ml-build.
2040 :     - config\install.bat: Analogous to config/install.sh. This requires
2041 :     that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
2042 :     (nmake etc. must be on the path, and vcvars32 must have been run.)
2043 :     Moreover, sources for ml-lex and ml-yacc need to exist under src,
2044 :     and the bootfile hierarchy must have been unpacked under
2045 :     sml.boot.x86-win32.
2046 :     The script is very primitive and does a poor job at error checking.
2047 :     It only installs the base system, ml-lex, and ml-yacc. No other
2048 :     libraries are being installed (i.e., you get only those that
2049 :     are part of the compiler.)
2050 :     - link-sml.bat: analogous to .link-sml, but not currently used
2051 :    
2052 :     Unrelated bug fixes:
2053 :    
2054 :     - ml-nlffigen now exports structures ST_* corresponding to incomplete
2055 :     types.
2056 :     - Added getDevice to PP/src/pp-debug-fn.sml. (Would not compile
2057 :     otherwise.)
2058 :    
2059 :     ----------------------------------------------------------------------
2060 : macqueen 1337 Name: Dave MacQueen (macqueen@cs.uchicago.edu)
2061 :     Date: 2003/06/17
2062 :     Tag: macqueen-20030617-bug895
2063 :     Description:
2064 :    
2065 :     Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
2066 :     Tag will be used for new development branch (mcz-branch) for
2067 :     use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
2068 :    
2069 :     ----------------------------------------------------------------------
2070 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2071 : mblume 1335 Date: 2003/05/27 16:55:00 CDT
2072 :     Tag: blume-20030527-polyeq
2073 :     Description:
2074 :    
2075 :     Tried to eliminated most cases of polymorphic equality.
2076 :    
2077 :     ----------------------------------------------------------------------
2078 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2079 : mblume 1334 Date: 2003/05/21 17:45:00 CDT
2080 :     Tag: blume-20030517-complete
2081 :     Description:
2082 :    
2083 :     Two changes:
2084 :    
2085 :     1. Added a flag for controlling whether non-exhaustive bindings will
2086 :     be treated as errors (default is false).
2087 :     2. Cleaned up the *entire* source tree so that CMB.make goes through
2088 :     without a single non-exhaustive match- or bind warning.
2089 :    
2090 :     ----------------------------------------------------------------------
2091 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2092 : mblume 1332 Date: 2003/05/17 10:20:00 CDT
2093 :     Tag: blume-20030517-absyn
2094 :     Description:
2095 :    
2096 :     1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
2097 :    
2098 :     This mainly affects the quality of error messages. However, some
2099 :     of the code is now more straightforward than before. (Treatment of
2100 :     the above four constructs in translate.sml is much simpler than
2101 :     the "macro-expansion" that was going on before. Plus, the mach-
2102 :     compiler no longer gets invoked just to be able to compile an
2103 :     if-expression.)
2104 :    
2105 :     2. The ErrorMsg.Error exception is now caught and absorbed by the
2106 :     interactive loop.
2107 :    
2108 :     ----------------------------------------------------------------------
2109 : allenleung 1327 Name: Allen Leung
2110 :     Date: 2003/05/16 13:05:00 CDT
2111 :     Tag: leunga-20030516-cygwin-runtime
2112 :     Description:
2113 :    
2114 :     Ported the runtime system to cygwin, which uses the unix
2115 :     x86-unix bin files. Missing/buggy features:
2116 :    
2117 :     o getnetbyname, getnetbyaddr: these functions seem to be missing in
2118 :     the Cygwin library.
2119 :     o Ctrl-C handling may be flaky.
2120 :     o Windows system calls and Windows I/O are not supported.
2121 :    
2122 :     A new set of binfiles is located at:
2123 :    
2124 :     http://www.dorsai.org/~leunga/boot.x86-unix.tgz
2125 :    
2126 :     This is only needed for bootstrapping the cygwin version of smlnj.
2127 :     Other x86 versions can use the existing binfiles.
2128 :    
2129 :     ----------------------------------------------------------------------
2130 : mblume 1317 Name: Matthias Blume
2131 :     Date: 2003/04/08 15:42:00 CDT
2132 :     Tag: blume-20030408-listpair
2133 :     Description:
2134 :    
2135 :     1. Added a target 'mlrisc' to installer.
2136 :    
2137 :     2. Added missing elements to structure ListPair.
2138 :    
2139 :     ----------------------------------------------------------------------
2140 : leunga 1296 Name: Allen Leung
2141 :     Date: 2003/01/07 10:40:00 EST
2142 :     Tag: leunga-20030107-int-rem
2143 :     Description:
2144 :    
2145 :     Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
2146 :     The arguments to the SUBL instruction were swapped.
2147 :    
2148 :     ----------------------------------------------------------------------
2149 : blume 1229 Name: Matthias Blume
2150 : blume 1294 Date: 2002/12/12 16:25:00 EST
2151 :     Tag: blume-20021212-risc-ra
2152 :     Description:
2153 :    
2154 :     Fixed a serious bug in the rewrite code for FP spilling/reloading that
2155 :     sent the RA into an infinite loop when floating point registers get
2156 :     spilled. (Because of this bug, e.g., nucleic stopped compiling between
2157 :     110.37 and 110.38.)
2158 :     There was another set of potential problems related to the handling of
2159 :     MLRISC annotations (but those did not yet cause real problems, apparently).
2160 :    
2161 :     ----------------------------------------------------------------------
2162 :     Name: Matthias Blume
2163 : blume 1291 Date: 2002/12/06 22:40:00 EST
2164 :     Tag: blume-20021206-cm-fileid
2165 :     Description:
2166 :    
2167 :     Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
2168 :     This fixes the problem of CM getting confused by files that suddenly
2169 :     change their identity (e.g., by getting unlinked and recreated by some
2170 :     text editor such as vi). There might be a better/cheaper/cleaner way
2171 :     of doing this, but for now this will have to do.
2172 :    
2173 :     ----------------------------------------------------------------------
2174 :     Name: Matthias Blume
2175 : blume 1288 Date: 2002/10/28 09:50:00 EST
2176 :     Tag: blume-20021028-typecheck
2177 :     Description:
2178 :    
2179 :     Exported structure Typecheck from $smlnj/viscomp/core.cm.
2180 :    
2181 :     ----------------------------------------------------------------------
2182 :     Name: Matthias Blume
2183 : blume 1282 Date: 2002/10/17 09:10:00 EDT
2184 : blume 1279 Tag: Release_110_42
2185 :     Description:
2186 :    
2187 : blume 1282 In good old tradition, there has been a slight hiccup so that we have
2188 :     to patch 110.42 after the fact. The old release tag has been replaced
2189 :     (see below).
2190 :    
2191 :     The change solves a problem with two competing approaches the
2192 :     configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
2193 :     each other's way.
2194 :    
2195 :     This change only affects the runtime system code and the installer script.
2196 :     (No new bootfiles.)
2197 :    
2198 :     ----------------------------------------------------------------------
2199 :     Name: Matthias Blume
2200 :     Date: 2002/10/16 12:00:00 EDT
2201 :     Tag: Release_110_42_removed
2202 :     Description:
2203 :    
2204 : blume 1279 New working release. New bootfiles.
2205 :    
2206 :     ----------------------------------------------------------------------
2207 :     Name: Matthias Blume
2208 : blume 1273 Date: 2002/10/10 13:10:00 EDT
2209 :     Tag: blume-20021010-ppc-divs
2210 :     Description:
2211 :    
2212 :     The mltree operator DIVS must be implemented with an overflow check on
2213 :     the PPC because the hardware indicates divide-by-zero using "overflow" as
2214 :     well.
2215 :    
2216 :     ----------------------------------------------------------------------
2217 :     Name: Matthias Blume
2218 : blume 1261 Date: 2002/07/23 11:45:00
2219 :     Tag: blume-20020723-smlnj-home
2220 :     Description:
2221 :    
2222 :     Sml now senses the SMLNJ_HOME environment variable. If this is set,
2223 :     then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
2224 :     CM_PATHCONFIG is also set), the path configuration file is assumed
2225 :     to be in $SMLNJ_HOME/lib/pathconfig. This way one can easily move
2226 :     the entire tree to some other place and everything will "just work".
2227 :    
2228 :     (Companion commands such as ml-build and ml-makedepend also sense this
2229 :     variable.)
2230 :    
2231 :     ----------------------------------------------------------------------
2232 :     Name: Matthias Blume
2233 : blume 1259 Date: 2002/07/12 21:19:00 EDT
2234 :     Tag: blume-20020712-liveness
2235 :     Description:
2236 :    
2237 :     Exported two useful "step" functions from liveness module (MLRISC).
2238 :    
2239 :     ----------------------------------------------------------------------
2240 :     Name: Matthias Blume
2241 : blume 1253 Date: 2002/07/05 16:00 EDT
2242 :     Tag: Release_110_41
2243 :     Description:
2244 :    
2245 :     New working release. New bootfiles.
2246 :    
2247 :     ----------------------------------------------------------------------
2248 :     Name: Matthias Blume
2249 : blume 1250 Date: 2002/07/05 10:25:00 EDT
2250 :     Tag: blume-20020705-btimp
2251 :     Description:
2252 :    
2253 :     Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
2254 :     other clients can set up backtracing support.
2255 :    
2256 :     ----------------------------------------------------------------------
2257 :     Name: Matthias Blume
2258 : blume 1249 Date: 2002/06/25 17:23:00 EDT
2259 :     Tag: blume-20020625-fpmax
2260 :     Description:
2261 :    
2262 :     Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
2263 :     case. (The sense of the isNaN test was reversed -- which made min and
2264 :     max always return their first argument.)
2265 :    
2266 :     ----------------------------------------------------------------------
2267 :     Name: Matthias Blume
2268 : blume 1240 Date: 2002/06/11
2269 :     Tag: blume-20020611-unixpath
2270 :     Description:
2271 :    
2272 :     Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
2273 :    
2274 :     ----------------------------------------------------------------------
2275 :     Name: Matthias Blume
2276 : blume 1238 Date: 2002/06/10 16:35:00 EDT
2277 :     Tag: blume-20020610-ieeereal
2278 :     Description:
2279 :    
2280 :     I back-ported my implementation of IEEEReal.fromString from the
2281 :     idlbasis-devel branch so that we can test it.
2282 :    
2283 :     Another small change is that ppDec tries to give more information
2284 :     than just "<sig>" in the case of functors. However, this code is
2285 :     broken in some mysterious way if the functor's body's signature
2286 :     has not been declared by ascription but gets inferred from the
2287 :     implementation. This needs fixing...
2288 :    
2289 :     ----------------------------------------------------------------------
2290 :     Name: Matthias Blume
2291 : blume 1229 Date: 2002/05/31
2292 :     Tag: blume-20020531-btrace-mode
2293 :     Description:
2294 :    
2295 :     Resurrected SMLofNJ.Internals.BTrace.mode. (It accidentally fell by
2296 :     the wayside when I switched over to using Controls everywhere.)
2297 :    
2298 :     ----------------------------------------------------------------------
2299 : george 1222 Name: Lal George
2300 :     Date: 2002/05/23 12:21:40 EDT
2301 :     Tag: george-20020523-visual-labels
2302 :     Description:
2303 :    
2304 :     Labels are now displayed in the graphical output to make
2305 :     the fall-through and target blocks obvious.
2306 :    
2307 :     ----------------------------------------------------------------------
2308 : blume 1204 Name: Matthias Blume
2309 : blume 1220 Date: 2002/05/22 11:03:00 EDT
2310 :     Tag: blume-20020522-shrink
2311 :     Description:
2312 :    
2313 :     John tweaked yesterday's fix for 1131 to handle an out-of-memory
2314 :     situation that comes up when allocating huge arrays.
2315 :    
2316 :     ----------------------------------------------------------------------
2317 :     Name: Matthias Blume
2318 : blume 1215 Date: 2002/05/21 16:00:00 EDT
2319 :     Tag: Release_110_40
2320 :     Description:
2321 :    
2322 :     New working release (110.40). New bootfiles.
2323 :    
2324 :     [Also: John Reppy fixed GC bug 1131.]
2325 :    
2326 :     ----------------------------------------------------------------------
2327 :     Name: Matthias Blume
2328 : blume 1212 Date: 2002/05/21 12:35:00 EDT
2329 :     Tag: blume-20020521-cmdoc
2330 :     Description:
2331 :    
2332 :     CM documentation update.
2333 :    
2334 :     ----------------------------------------------------------------------
2335 :     Name: Matthias Blume
2336 : blume 1211 Date: 2002/05/21 10:55:00 EDT
2337 :     Tag: blume-20020521-misc
2338 :     Description:
2339 :    
2340 :     - John tweaked runtime to be silent on heap export (except when
2341 :     GC messages are on).
2342 :     - I added a few more things (cross-compiling versions of CMB) to
2343 :     config/preloads (as suggestions).
2344 :    
2345 :     ----------------------------------------------------------------------
2346 :     Name: Matthias Blume
2347 : blume 1208 Date: 2002/05/20 22:25:00 EDT
2348 :     Tag: blume-20020520-controls
2349 :     Description:
2350 :    
2351 :     - Added ControlUtil structure to control-lib.cm.
2352 :     - Use it throughout.
2353 :     - Used Controls facility to define MLRISC controls (as opposed to
2354 :     registering MLRISC control ref cells with Controls after the fact)
2355 :     - Fixed messed-up controls priorities.
2356 :    
2357 :     * Removed again all the stuff from config/preloads that one wouldn't
2358 :     be able to preload at the time the initial heap image is built.
2359 :     (Many libraries, e.g., CML, do not exist yet at this time. The
2360 :     only libraries that can be preloaded via config/preloads are those
2361 :     that come bundled with the bootfiles.)
2362 :    
2363 :     ----------------------------------------------------------------------
2364 :     Name: Matthias Blume
2365 : blume 1204 Date: 2002/05/20 10:59:00 EDT
2366 :     Tag: blume-20020520-preloads
2367 :     Description:
2368 :    
2369 :     Added a lot of commented-out suggestions for things to be included
2370 :     in config/preloads.
2371 :    
2372 :     ----------------------------------------------------------------------
2373 : leunga 1203 Name: Allen Leung
2374 :     Date: 2002/05/18 14:20:00 EDT
2375 :     Tag: leunga-20020518-mdl
2376 :     Description:
2377 :    
2378 :     o Made the mdl tool stuff compile and run again.
2379 :     o I've disabled all the stuff that depends on RTL specifications; they
2380 :     are all badly broken anyway.
2381 :    
2382 :     ----------------------------------------------------------------------
2383 : blume 1201 Name: Matthias Blume
2384 :     Date: 2002/05/17 16:49:00 EDT
2385 :     Tag: blume-20020517-controls
2386 :     Description:
2387 :    
2388 :     0. John Reppy made several modifications to the SML/NJ library.
2389 :     In particular, there is a shiny new controls-lib.cm.
2390 :    
2391 :     1. Pushed new controls interface through compiler so that everything
2392 :     compiles again.
2393 :    
2394 :     2. Added FormatComb and FORMAT_COMB to the CML version of the
2395 :     SML/NJ library (so that CML compiles again).
2396 :    
2397 :     3. Modified init scripts because XXX_DEFAULT environment variables
2398 :     are no longer with us. (Boot-time initialization is now done
2399 :     using the same environment variables that are also used for
2400 :     startup-time initialization of controls.)
2401 :    
2402 :     ----------------------------------------------------------------------
2403 : george 1192 Name: Lal George
2404 :     Date: 2002/05/15 09:20:10 EDT
2405 :     Tag: george-20020515-pseudo-op-decls
2406 :     Description:
2407 :    
2408 :     All pseudo-ops emitted before the first segment declaration
2409 :     such as TEXT, DATA, and BSS directives are assumed to be global
2410 :     declarations and are emitted first in the assembly file. This is
2411 :     useful in a number of situations where one has pseudo-ops that are not
2412 :     specific to any segment, and also works around the constraint that one
2413 :     cannot have client pseudo-ops in the TEXT segment.
2414 :    
2415 :     Because no segment is associated with these declarations it is
2416 :     an error to allocate any space or objects before the first segment
2417 :     directive and an exception will be raised. However, we cannot make
2418 :     this check for client pseudo-ops.
2419 :    
2420 :     These top level declarations are a field in the CFG graph_info.
2421 :     In theory you can continue to add to this field after the CFG has been
2422 :     built -- provided you know what you are doing;-)
2423 :    
2424 :     ----------------------------------------------------------------------
2425 : blume 1175 Name: Matthias Blume
2426 : blume 1190 Date: 2002/05/13 16:40:00 EDT
2427 :     Tag: blume-20020513-pp-etc
2428 :     Description:
2429 :    
2430 :     A few minor bugfixes:
2431 :    
2432 :     - Stopgap measure for bug recently reported by Elsa Gunter (ppDec).
2433 :     (Bogus printouts for redefined bindings still occur. Compiler
2434 :     bug should no longer occur now. We need to redo the prettyprinter
2435 :     from scratch.)
2436 :    
2437 :     - CM pathname printer now also adds escape sequences for ( and )
2438 :    
2439 :     - commend and docu fixes for ml-nlffi
2440 :    
2441 :     ----------------------------------------------------------------------
2442 :     Name: Matthias Blume
2443 : blume 1189 Date: 2002/05/10 16:40:00 EDT
2444 :     Tag: blume-20020510-erg-textio
2445 :     Description:
2446 :    
2447 :     Applied the following bugfix provided by Emden Gansner:
2448 :    
2449 :     Output is corrupted when outputSubstr is used rather than output.
2450 :    
2451 :     The problem occurs when a substring
2452 :    
2453 :     ss = (s, dataStart, dataLen)
2454 :    
2455 :     where dataStart > 0, fills a stream buffer with avail bytes left.
2456 :     avail bytes of s, starting at index dataStart, are copied into the
2457 :     buffer, the buffer is flushed, and then the remaining dataLen-avail
2458 :     bytes of ss are copied into the beginning of the buffer. Instead of
2459 :     starting this copy at index dataStart+avail in s, the current code
2460 :     starts the copy at index avail.
2461 :    
2462 :     Fix:
2463 :     In text-io-fn.sml, change line 695 from
2464 :     val needsFlush = copyVec(v, avail, dataLen-avail, buf, 0)
2465 :     to
2466 :     val needsFlush = copyVec(v, dataStart+avail, dataLen-avail, buf, 0)
2467 :    
2468 :     ----------------------------------------------------------------------
2469 :     Name: Matthias Blume
2470 : blume 1186 Date: 2002/04/12 13:55:00 EDT
2471 :     Tag: blume-20020412-assyntax
2472 :     Description:
2473 :    
2474 :     1. Grabbed newer assyntax.h from the XFree86 project.
2475 :     2. Fiddled with how to compile X86.prim.asm without warnings.
2476 :     3. (Very) Minor cleanup in CM.
2477 :    
2478 :     ----------------------------------------------------------------------
2479 :     Name: Matthias Blume
2480 : blume 1185 Date: 2002/04/01 (no joke!) 17:07:00 EST
2481 :     Tag: blume-20020401-x86div
2482 :     Description:
2483 :    
2484 :     Added full support for div/mod/rem/quot on the x86, using the machine
2485 :     instruction's two results (without clumsily recomputing the remainder)
2486 :     directly where appropriate.
2487 :    
2488 :     Some more extensive power-of-two support was added to the x86 instruction
2489 :     selector (avoiding expensive divs, mods, and muls where they can be
2490 :     replaced with cheaper shifts and masks). However, this sort of thing
2491 :     ought to be done earlier, e.g., within the CPS optimizer so that
2492 :     all architectures benefit from it.
2493 :    
2494 :     The compiler compiles to a fixed point, but changes might be somewhat
2495 :     fragile nevertheless. Please, report any strange things that you might
2496 :     see wrt. div/mod/quot/rem...
2497 :    
2498 :     ----------------------------------------------------------------------
2499 :     Name: Matthias Blume
2500 : blume 1184 Date: 2002/03/29 17:22:00
2501 :     Tag: blume-20020329-div
2502 :     Description:
2503 :    
2504 :     Fixed my broken div/mod logic. Unfortunately, this means that the
2505 :     inline code for div/mod now has one more comparison than before.
2506 :     Fast paths (quotient > 0 or remainder = 0) are not affected, though.
2507 :     The problem was with quotient = 0, because that alone does not tell
2508 :     us which way the rounding went. One then has to look at whether
2509 :     remainder and divisor have the same sign... :(
2510 :    
2511 :     Anyway, I replaced the bootfiles with fresh ones...
2512 :    
2513 :     ----------------------------------------------------------------------
2514 :     Name: Matthias Blume
2515 : blume 1183 Date: 2002/03/29 14:10:00 EST
2516 :     Tag: blume-20020329-inlprims
2517 :     Description:
2518 :    
2519 :     NEW BOOTFILES!!! Version number bumped to 110.39.3.
2520 :    
2521 :     Primops have changed. This means that the bin/boot-file formats have
2522 :     changed as well.
2523 :    
2524 :     To make sure that there is no confusion, I made a new version.
2525 :    
2526 :    
2527 :     CHANGES:
2528 :    
2529 :     * removed REMT from mltree (remainder should never overflow).
2530 :    
2531 :     * added primops to deal with divisions of all flavors to the frontend
2532 :    
2533 :     * handled these primops all the way through so they map to their respective
2534 :     MLRISC support
2535 :    
2536 :     * used these primops in the implementation of Int, Int32, Word, Word32
2537 :    
2538 :     * removed INLDIV, INLMOD, and INLREM as they are no longer necessary
2539 :    
2540 :     * parameterized INLMIN, INLMAX, and INLABS by a numkind
2541 :    
2542 :     * translate.sml now deals with all flavors of INL{MIN,MAX,ABS}, including
2543 :     floating point
2544 :    
2545 :     * used INL{MIN,MAX,ABS} in the implementation of Int, Int32, Word, Word32,
2546 :     and Real (but Real.abs maps to a separate floating-point-only primop)
2547 :    
2548 :    
2549 :     TODO items:
2550 :    
2551 :     * Hacked Alpha32 instruction selection, disabling the selection of REMx
2552 :     instructions because the machine instruction encoder cannot handle
2553 :     them. (Hppa, PPC, and Sparc instruction selection did not handle
2554 :     REM in the first place, and REM is supported by the x86 machine coder.)
2555 :    
2556 :     * Handle DIV and MOD with DIV_TO_NEGINF directly in the x86 instruction
2557 :     selection phase. (The two can be streamlined because the hardware
2558 :     delivers both quotient and remainder at the same time anyway.)
2559 :    
2560 :     * Think about what to do with "valOf(Int32.minInt) div ~1" and friends.
2561 :     (Currently the behavior is inconsistent both across architectures and
2562 :     wrt. the draft Basis spec.)
2563 :    
2564 :     * Word8 should eventually be handled natively, too.
2565 :    
2566 :     * There seems to be one serious bug in mltree-gen.sml. It appears, though,
2567 :     as if there currently is no execution path that could trigger it in
2568 :     SML/NJ. (The assumptions underlying functions arith and promotable do not
2569 :     hold for things like multiplication and division.)
2570 :    
2571 :     ----------------------------------------------------------------------
2572 :     Name: Matthias Blume
2573 : blume 1181 Date: 2002/03/27 16:27:00 EST
2574 :     Tag: blume-20020327-mlrisc-divisions
2575 :     Description:
2576 :    
2577 :     Added support for all four division operations (ML's div, mod, quot,
2578 :     and rem) to MLRISC. In the course of doing so, I also rationalized
2579 :     the naming (no more annoying switch-around of DIV and QUOT), by
2580 :     parameterizing the operation by div_rounding_mode (which can be either
2581 :     DIV_TO_ZERO or DIV_TO_NEGINF).
2582 :    
2583 :     The generic MLTreeGen functor takes care of compiling all four
2584 :     operations down to only round-to-zero div.
2585 :    
2586 :     Missing pieces:
2587 :    
2588 :     * Doing something smarter than relying on MLTreeGen on architectures
2589 :     like, e.g., the x86 where hardware division delivers both quotient and
2590 :     remainder at the same time. With this, the implementation of the
2591 :     round-to-neginf operations could be further streamlined.
2592 :    
2593 :     * Remove inlining support for div/mod/rem from the frontend and replace it
2594 :     with primops that get carried through to the backend. Do this for all
2595 :     int and word types.
2596 :    
2597 :     ----------------------------------------------------------------------
2598 :     Name: Matthias Blume
2599 : blume 1180 Date: 2002/03/25 17:25:00 EST
2600 :     Tag: blume-20020325-divmod
2601 :     Description:
2602 :    
2603 :     I improved (hopefully without breaking them) the implementation of Int.div,
2604 :     Int.mod, and Int.rem. For this, the code in translate.sml now takes
2605 :     advantage of the following observations:
2606 :    
2607 :     Let q = x quot y r = x rem y
2608 :     d = x div y m = x mod y
2609 :    
2610 :     where "quot" is the round-to-zero version of integer division that
2611 :     hardware usually provides. Then we have:
2612 :    
2613 :     r = x - q * y where neither the * nor the - will overflow
2614 :     d = if q >= 0 orelse x = q * y then q else q - 1
2615 :     where neither the * nor the - will overflow
2616 :     m = if q >= 0 orelse r = 0 then r else r + y
2617 :     where the + will not overflow
2618 :    
2619 :     This results in substantial simplification of the generated code.
2620 :     The following table shows the number of CFG nodes and edges generated
2621 :     for
2622 :     fun f (x, y) = x OPER y
2623 :     (* with OPER \in div, mod, quot, rem *)
2624 :    
2625 :    
2626 :     OPER | nodes(old) | edges(old) | nodes(new) | edges(new)
2627 :     --------------------------------------------------------
2628 :     div | 24 | 39 | 12 | 16
2629 :     mod | 41 | 71 | 12 | 16
2630 :     quot | 8 | 10 | 8 | 10
2631 :     rem | 10 | 14 | 8 | 10
2632 :    
2633 :    
2634 :     ----------------------------------------------------------------------
2635 :     Name: Matthias Blume
2636 : blume 1179 Date: 2002/03/25 22:06:00 EST
2637 :     Tag: blume-20020325-cprotobug
2638 :     Description:
2639 :    
2640 :     Fixed a bug in cproto (c prototype decoder).
2641 :    
2642 :     ----------------------------------------------------------------------
2643 :     Name: Matthias Blume
2644 : blume 1178 Date: 2002/03/25 16:00:00 EST
2645 :     Tag: blume-20020325-raw-primops
2646 :     Description:
2647 :    
2648 :     I did some cleanup to Allen's new primop code and
2649 :     replaced yesterday's bootfiles with new ones.
2650 :     (But they are stored in the same place.)
2651 :    
2652 :     ----------------------------------------------------------------------
2653 :     Name: Matthias Blume
2654 : blume 1175 Date: 2002/03/24 22:40:00 EST
2655 :     Tag: blume-20020324-bootfiles
2656 :     Description:
2657 :    
2658 :     Made the bootfiles that Allen asked for.
2659 :    
2660 :     ----------------------------------------------------------------------
2661 : leunga 1174 Name: Allen Leung
2662 :     Date: 2002/03/23 15:50:00 EST
2663 :     Tag: leunga-20020323-flint-cps-rcc-primops
2664 :     Description:
2665 :    
2666 :     1. Changes to FLINT primops:
2667 :    
2668 :     (* make a call to a C-function;
2669 :     * The primop carries C function prototype information and specifies
2670 :     * which of its (ML-) arguments are floating point. C prototype
2671 :     * information is for use by the backend, ML information is for
2672 :     * use by the CPS converter. *)
2673 :     | RAW_CCALL of { c_proto: CTypes.c_proto,
2674 :     ml_args: ccall_type list,
2675 :     ml_res_opt: ccall_type option,
2676 :     reentrant : bool
2677 :     } option
2678 :     (* Allocate uninitialized storage on the heap.
2679 :     * The record is meant to hold short-lived C objects, i.e., they
2680 :     * are not ML pointers. With the tag, the representation is
2681 :     * the same as RECORD with tag tag_raw32 (sz=4), or tag_fblock (sz=8)
2682 :     *)
2683 :     | RAW_RECORD of {tag:bool,sz:int}
2684 :     and ccall_type = CCALL_INT32 | CCALL_REAL64 | CCALL_ML_PTR
2685 :    
2686 :     2. These CPS primops are now overloaded:
2687 :    
2688 :     rawload of {kind:numkind}
2689 :     rawstore of {kind:numkind}
2690 :    
2691 :     The one argument form is:
2692 :    
2693 :     rawload {kind} address
2694 :    
2695 :     The two argument form is:
2696 :    
2697 :     rawload {kind} [ml object, byte-offset]
2698 :    
2699 :     3. RAW_CCALL/RCC now takes two extra arguments:
2700 :    
2701 :     a. The first is whether the C call is reentrant, i.e., whether
2702 :     ML state should be saved and restored.
2703 :     b. The second argument is a string argument specifying the name of
2704 :     library and the C function.
2705 :    
2706 :     These things are currently not handled in the code generator, yet.
2707 :    
2708 :     4. In CProto,
2709 :    
2710 :     An encoding type of "bool" means "ml object" and is mapped into
2711 :     C prototype of PTR. Note that "bool" is different than "string",
2712 :     even though "string" is also mapped into PTR, because "bool"
2713 :     is assigned an CPS type of BOGt, while "string" is assigned INT32t.
2714 :    
2715 :     5. Pickler/unpicker
2716 :    
2717 :     Changed to handle RAW_RECORD and newest RAW_CCALL
2718 :    
2719 :     6. MLRiscGen,
2720 :    
2721 :     1. Changed to handle the new rawload/rawstore/rawrecord operators.
2722 :     2. Code for handling C Calls has been moved to a new module CPSCCalls,
2723 :     in the file CodeGen/cpscompile/cps-c-calls.sml
2724 :    
2725 :     7. Added the conditional move operator
2726 :    
2727 :     condmove of branch
2728 :    
2729 :     to cps. Generation of this is still buggy so it is currently
2730 :     disabled.
2731 :    
2732 :     ----------------------------------------------------------------------
2733 : george 1168 Name: Lal George
2734 :     Date: 2002/03/22 14:18:25 EST
2735 : george 1171 Tag: george-20020322-cps-branch-prob
2736 : george 1168 Description:
2737 :    
2738 : george 1171 Implemented the Ball-Larus branch prediction-heuristics, and
2739 : george 1168 incorporated graphical viewers for control flow graphs.
2740 :    
2741 : george 1171 Ball-Larus Heuristics:
2742 : george 1168 ---------------------
2743 :     See the file compiler/CodeGen/cpscompile/cpsBranchProb.sml.
2744 :    
2745 :     By design it uses the Dempster-Shafer theory for combining
2746 :     probabilities. For example, in the function:
2747 :    
2748 :     fun f(n,acc) = if n = 0 then acc else f(n-1, n*acc)
2749 :    
2750 :     the ball-larus heuristics predicts that the n=0 is unlikely
2751 :     (OH-heuristic), and the 'then' branch is unlikely because of the
2752 :     RH-heuristic -- giving the 'then' branch an even lower combined
2753 : george 1171 probability using the Dempster-Shafer theory.
2754 : george 1168
2755 :     Finally, John Reppy's loop analysis in MLRISC, further lowers the
2756 :     probability of the 'then' branch because of the loop in the else
2757 :     branch.
2758 :    
2759 :    
2760 :     Graphical Viewing:
2761 :     ------------------
2762 :     I merely plugged in Allen's graphical viewers into the compiler. The
2763 :     additional code is not much. At the top level, saying:
2764 :    
2765 :     Control.MLRISC.getFlag "cfg-graphical-view" := true;
2766 :    
2767 :     will display the graphical view of the control flow graph just before
2768 :     back-patching. daVinci must be in your path for this to work. If
2769 :     daVinci is not available, then the default viewer can be changed
2770 :     using:
2771 :    
2772 :     Control.MLRISC.getString "viewer"
2773 :    
2774 :     which can be set to "dot" or "vcg" for the corresponding viewers. Of
2775 :     course, these viewers must be in your path.
2776 :    
2777 :     The above will display the compilation unit at the level of clusters,
2778 :     many of which are small, boring, and un-interesting. Also setting:
2779 :    
2780 :     Control.MLRISC.getInt "cfg-graphical-view_size"
2781 :    
2782 :     will display clusters that are larger than the value set by the above.
2783 :    
2784 :    
2785 :     ----------------------------------------------------------------------
2786 : blume 1159 Name: Matthias Blume
2787 :     Date: 2002/03/21 22:20:00 EST
2788 :     Tag: blume-20020321-kmp-bugfix
2789 :     Description:
2790 :    
2791 :     Changed the interface to the KMP routine in PreString and fixed
2792 :     a minor bug in one place where it was used.
2793 :    
2794 :     ----------------------------------------------------------------------
2795 : leunga 1156 Name: Allen Leung
2796 : leunga 1158 Date: 2002/03/21 20:30:00 EST
2797 :     Tag: leunga-20020321-cfg
2798 :     Description:
2799 :    
2800 :     Fixed a potential problem in cfg edge splitting.
2801 :    
2802 :     ----------------------------------------------------------------------
2803 :     Name: Allen Leung
2804 : leunga 1156 Date: 2002/03/21 17:15:00 EST
2805 :     Tag: leunga-20020321-x86-fp-cfg
2806 :     Description:
2807 :    
2808 :     1. Recoded the buggy parts of x86-fp.
2809 :    
2810 :     a. All the block reordering code has been removed.
2811 :     We now depend on the block placement phases to do this work.
2812 :    
2813 :     b. Critical edge splitting code has been simplified and moved into the
2814 :     CFG modules, as where they belong.
2815 :    
2816 :     Both of these were quite buggy and complex. The code is now much, much
2817 :     simpler.
2818 :    
2819 :     2. X86 backend.
2820 :    
2821 :     a. Added instructions for 64-bit support. Instruction selection for
2822 :     64-bit has not been committed, however, since that
2823 :     requires changes to MLTREE which haven't been approved by
2824 :     Lal and John.
2825 :    
2826 :     b. Added support for FUCOMI and FUCOMIP when generating code for
2827 :     PentiumPro and above. We only generate these instructions in
2828 :     the fast-fp mode.
2829 :    
2830 :     c. Added cases for JP and JNP in X86FreqProps.
2831 :    
2832 :     3. CFG
2833 :    
2834 :     CFG now has a bunch of methods for edge splitting and merging.
2835 :    
2836 :     4. Machine description.
2837 :    
2838 :     John's simplification of MLTREE_BASIS.fcond broke a few machine
2839 :     description things:
2840 :    
2841 :     rtl-build.{sig,sml} and hppa.mdl fixed.
2842 :    
2843 :     NOTE: the machine description stuff in the repository is still broken.
2844 :     Again, I can't put my fixes in because that involves
2845 :     changes to MLTREE.
2846 :    
2847 :     ----------------------------------------------------------------------
2848 : blume 1145 Name: Matthias Blume
2849 : blume 1155 Date: 2002/03/20 15:55:00 EST
2850 :     Tag: blume-20020320-kmp
2851 :     Description:
2852 :    
2853 :     Implemented Knuth-Morris-Pratt string matching in PreString and used
2854 :     it for String.isSubstring, Substring.isSubstring, and
2855 :     Substring.position.
2856 :    
2857 :     (Might need some stress-testing. Simple examples worked fine.)
2858 :    
2859 :     ----------------------------------------------------------------------
2860 :     Name: Matthias Blume
2861 : blume 1152 Date: 2002/03/19 16:37:00 EST
2862 :     Tag: blume-20020319-witnesses
2863 :     Description:
2864 :    
2865 :     Added a structure C.W and functions convert/Ptr.convert to ml-nlffi-lib.
2866 :    
2867 :     This implements a generic mechanism for changing constness qualifiers
2868 :     anywhere within big C types without resorting to outright "casts".
2869 :     (So far, functions such as C.rw/C.ro or C.Ptr.rw/C.Ptr.ro only let you
2870 :     modify the constness at the outermost level.)
2871 :     The implementation of "convert" is based on the idea of "witness"
2872 :     values -- values that are not used by the operation but whose types
2873 :     "testify" to their applicability. On the implementation side, "convert"
2874 :     is simply a projection (returning its second curried argument). With
2875 :     cross-module inlining, it should not result in any machine code being
2876 :     generated.
2877 :    
2878 :     ----------------------------------------------------------------------
2879 :     Name: Matthias Blume
2880 : blume 1148 Date: 2002/03/15 16:40:00 EST
2881 :     Tag: blume-20020315-basis
2882 :     Description:
2883 :    
2884 :     Provided (preliminary?) implementations for
2885 :    
2886 :     {String,Substring}.{concatWith,isSuffix,isSubstring}
2887 :    
2888 :     and
2889 :    
2890 :     Substring.full
2891 :    
2892 :     Those are in the Basis spec but they were missing in SML/NJ.
2893 :    
2894 :     ----------------------------------------------------------------------
2895 :     Name: Matthias Blume
2896 : blume 1145 Date: 2002/03/14 21:30:00 EST
2897 :     Tag: blume-20020314-controls
2898 :     Description:
2899 :    
2900 :     Controls:
2901 :     ---------
2902 :    
2903 :     1. Factored out the recently-added Controls : CONTROLS stuff and put
2904 :     it into its own library $/controls-lib.cm. The source tree for
2905 :     this is under src/smlnj-lib/Controls.
2906 :    
2907 :     2. Changed the names of types and functions in this interface, so they
2908 :     make a bit more "sense":
2909 :    
2910 :     module -> registry
2911 :     'a registry -> 'a group
2912 :    
2913 :     3. The interface now deals in ref cells only. The getter/setter interface
2914 :     is (mostly) gone.
2915 :    
2916 :     4. Added a function that lets one register an already-existing ref cell.
2917 :    
2918 :     5. Made the corresponding modifications to the rest of the code so that
2919 :     everything compiles again.
2920 :    
2921 :     6. Changed the implementation of Controls.MLRISC back to something closer
2922 :     to the original. In particular, this module (and therefore MLRISC)
2923 :     does not depend on Controls. There now is some link-time code in
2924 :     int-sys.sml that registers the MLRISC controls with the Controls
2925 :     module.
2926 :    
2927 :     CM:
2928 :     ---
2929 :    
2930 :     * One can now specify the lambda-split aggressiveness in init.cmi.
2931 :    
2932 :     ----------------------------------------------------------------------
2933 : leunga 1142 Name: Allen Leung
2934 :     Date: 2002/03/13 17:30:00 EST
2935 :     Tag: leunga-20020313-x86-fp-unary
2936 :     Description:
2937 :    
2938 :     Bug fix for:
2939 :    
2940 :     > leunga@weaselbane:~/Yale/tmp/sml-dist{21} bin/sml
2941 :     > Standard ML of New Jersey v110.39.1 [FLINT v1.5], March 08, 2002
2942 :     > - fun f(x,(y,z)) = Real.~ y;
2943 :     > [autoloading]
2944 :     > [autoloading done]
2945 :     > fchsl (%eax), 184(%esp)
2946 :     > Error: MLRisc bug: X86MCEmitter.emitInstr
2947 :     >
2948 :     > uncaught exception Error
2949 :     > raised at: ../MLRISC/control/mlriscErrormsg.sml:16.14-16.19
2950 :    
2951 :     The problem was that the code generator did not generate any fp registers
2952 :     in this case, and the ra didn't know that it needed to run the X86FP phase to
2953 :     translate the pseudo fp instruction. This only happened with unary fp
2954 :     operators in certain situations.
2955 :    
2956 :     ----------------------------------------------------------------------
2957 : blume 1137 Name: Matthias Blume
2958 : blume 1140 Date: 2002/03/13 14:00:00 EST
2959 :     Tag: blume-20020313-overload-etc
2960 :     Description:
2961 :    
2962 :     1. Added _overload as a synonym for overload for backward compatibility.
2963 :     (Control.overloadKW must be true for either version to be accepted.)
2964 :    
2965 :     2. Fixed bug in install script that caused more things to be installed
2966 :     than what was requested in config/targets.
2967 :    
2968 :     3. Made CM aware of the (_)overload construct so that autoloading
2969 :     works.
2970 :    
2971 :     ----------------------------------------------------------------------
2972 :     Name: Matthias Blume
2973 : blume 1138 Date: 2002/03/12 22:03:00 EST
2974 :     Tag: blume-20020312-url
2975 :     Description:
2976 :    
2977 :     Forgot to update BOOT and srcarchiveurl.
2978 :    
2979 :     ----------------------------------------------------------------------
2980 :     Name: Matthias Blume
2981 : blume 1137 Date: 2002/03/12 17:30:00 EST
2982 :     Tag: blume-20020312-version110392
2983 :     Description:
2984 :    
2985 :     Yet another version number bump (because of small changes to the
2986 :     binfile format). Version number is now 110.39.2. NEW BOOTFILES!
2987 :    
2988 :     Changes:
2989 :    
2990 :     The new pid generation scheme described a few weeks ago was overly
2991 :     complicated. I implemented a new mechanism that is simpler and
2992 :     provides a bit more "stability": Once CM has seen a compilation
2993 :     unit, it keeps its identity constant (as long as you do not delete
2994 :     those crucial CM/GUID/* files). This means that when you change
2995 : blume 1145 an interface, compile, then go back to the old interface, and
2996 : blume 1137 compile again, you arrive at the original pid.
2997 :    
2998 :     There now also is a mechanism that instructs CM to use the plain
2999 :     environment hash as a module's pid (effectively making its GUID
3000 :     the empty string). For this, "noguid" must be specified as an
3001 :     option to the .sml file in question within its .cm file.
3002 :     This is most useful for code that is being generated by tools such
3003 :     as ml-nlffigen (because during development programmers tend to
3004 :     erase the tool's entire output directory tree including CM's cached
3005 :     GUIDs). "noguid" is somewhat dangerous (since it can be used to locally
3006 :     revert to the old, broken behavior of SML/NJ, but in specific cases
3007 :     where there is no danger of interface confusion, its use is ok
3008 :     (I think).
3009 :    
3010 :     ml-nlffigen by default generates "noguid" annotations. They can be
3011 :     turned off by specifying -guid in its command line.
3012 :    
3013 :     ----------------------------------------------------------------------
3014 : george 1136 Name: Lal George
3015 :     Date: 2002/03/12 12 14:42:36 EST
3016 :     Tag: george-20020312-frequency-computation
3017 :     Description:
3018 :    
3019 :     Integrated jump chaining and static block frequency into the
3020 :     compiler. More details and numbers later.
3021 : leunga 1025
3022 : george 1003 ----------------------------------------------------------------------
3023 : george 1133 Name: Lal George
3024 :     Date: 2002/03/11 11 22:38:53 EST
3025 :     Tag: george-20020311-jump-chain-elim
3026 :     Description:
3027 :    
3028 :     Tested the jump chain elimination on all architectures (except the
3029 :     hppa). This is on by default right now and is profitable for the
3030 :     alpha and x86, however, it may not be profitable for the sparc and ppc
3031 :     when compiling the compiler.
3032 :    
3033 :     The gc test will typically jump to a label at the end of the cluster,
3034 :     where there is another jump to an external cluster containing the actual
3035 :     code to invoke gc. This is to allow factoring of common gc invocation
3036 :     sequences. That is to say, we generate:
3037 :    
3038 :     f:
3039 :     testgc
3040 :     ja L1 % jump if above to L1
3041 :    
3042 :     L1:
3043 :     jmp L2
3044 :    
3045 :    
3046 :     After jump chain elimination the 'ja L1' instructions is converted to
3047 :     'ja L2'. On the sparc and ppc, many of the 'ja L2' instructions may end
3048 :     up being implemented in their long form (if L2 is far away) using:
3049 :    
3050 :     jbe L3 % jump if below or equal to L3
3051 :     jmp L2
3052 :     L3:
3053 :     ...
3054 :    
3055 :    
3056 :     For large compilation units L2 may be far away.
3057 :    
3058 :    
3059 :     ----------------------------------------------------------------------
3060 : blume 1132 Name: Matthias Blume
3061 :     Date: 2002/03/11 13:30:00 EST
3062 :     Tag: blume-20020311-mltreeeval
3063 :     Description:
3064 :    
3065 :     A functor parameter was missing.
3066 :    
3067 :     ----------------------------------------------------------------------
3068 : leunga 1130 Name: Allen Leung
3069 : leunga 1131 Date: 2002/03/11 10:30:00 EST
3070 : leunga 1142 Tag: leunga-20020311-runtime-string0
3071 : leunga 1131 Description:
3072 :    
3073 :     The representation of the empty string now points to a
3074 :     legal null terminated C string instead of unit. It is now possible
3075 :     to convert an ML string into C string with InlineT.CharVector.getData.
3076 :     This compiles into one single machine instruction.
3077 :    
3078 :     ----------------------------------------------------------------------
3079 :     Name: Allen Leung
3080 : leunga 1130 Date: 2002/03/10 23:55:00 EST
3081 :     Tag: leunga-20020310-x86-call
3082 :     Description:
3083 :    
3084 :     Added machine generation for CALL instruction (relative displacement mode)
3085 :    
3086 :     ----------------------------------------------------------------------
3087 : blume 1128 Name: Matthias Blume
3088 :     Date: 2002/03/08 16:05:00
3089 :     Tag: blume-20020308-entrypoints
3090 :     Description:
3091 :    
3092 :     Version number bumped to 110.39.1. NEW BOOTFILES!
3093 :    
3094 :     Entrypoints: non-zero offset into a code object where execution should begin.
3095 :    
3096 :     - Added the notion of an entrypoint to CodeObj.
3097 :     - Added reading/writing of entrypoint info to Binfile.
3098 :     - Made runtime system bootloader aware of entrypoints.
3099 :     - Use the address of the label of the first function given to mlriscGen
3100 :     as the entrypoint. This address is currently always 0, but it will
3101 :     not be 0 once we turn on block placement.
3102 :     - Removed the linkage cluster code (which was The Other Way(tm) of dealing
3103 :     with entry points) from mlriscGen.
3104 :    
3105 :     ----------------------------------------------------------------------
3106 : leunga 1127 Name: Allen Leung
3107 :     Date: 2002/03/07 20:45:00 EST
3108 :     Tag: leunga-20020307-x86-cmov
3109 :     Description:
3110 :    
3111 :     Bug fixes for CMOVcc on x86.
3112 :    
3113 :     1. Added machine code generation for CMOVcc
3114 :     2. CMOVcc is now generated in preference over SETcc on PentiumPro or above.
3115 :     3. CMOVcc cannot have an immediate operand as argument.
3116 :    
3117 :     ----------------------------------------------------------------------
3118 : blume 1126 Name: Matthias Blume
3119 :     Date: 2002/03/07 16:15:00 EST
3120 :     Tag: blume-20020307-controls
3121 :     Description:
3122 :    
3123 :     This is a very large but mostly boring patch which makes (almost)
3124 :     every tuneable compiler knob (i.e., pretty much everything under
3125 :     Control.* plus a few other things) configurable via both the command
3126 :     line and environment variables in the style CM did its configuration
3127 :     until now.
3128 :    
3129 :     Try starting sml with '-h' (or, if you are brave, '-H')
3130 :    
3131 :     To this end, I added a structure Controls : CONTROLS to smlnj-lib.cm which
3132 :     implements the underlying generic mechanism.
3133 :    
3134 :     The interface to some of the existing such facilities has changed somewhat.
3135 :     For example, the MLRiscControl module now provides mkFoo instead of getFoo.
3136 :     (The getFoo interface is still there for backward-compatibility, but its
3137 :     use is deprecated.)
3138 :    
3139 :     The ml-build script passes -Cxxx=yyy command-line arguments through so
3140 :     that one can now twiddle the compiler settings when using this "batch"
3141 :     compiler.
3142 :    
3143 :     TODO items:
3144 :    
3145 :     We should go through and throw out all controls that are no longer
3146 :     connected to anything. Moreover, we should go through and provide
3147 :     meaningful (and correct!) documentation strings for those controls
3148 :     that still are connected.
3149 :    
3150 :     Currently, multiple calls to Controls.new are accepted (only the first
3151 :     has any effect). Eventually we should make sure that every control
3152 :     is being made (via Controls.new) exactly once. Future access can then
3153 :     be done using Controls.acc.
3154 :    
3155 :     Finally, it would probably be a good idea to use the getter-setter
3156 :     interface to controls rather than ref cells. For the time being, both
3157 :     styles are provided by the Controls module, but getter-setter pairs are
3158 :     better if thread-safety is of any concern because they can be wrapped.
3159 :    
3160 :     *****************************************
3161 :    
3162 :     One bug fix: The function blockPlacement in three of the MLRISC
3163 :     backpatch files used to be hard-wired to one of two possibilities at
3164 :     link time (according to the value of the placementFlag). But (I
3165 :     think) it should rather sense the flag every time.
3166 :    
3167 :     *****************************************
3168 :    
3169 :     Other assorted changes (by other people who did not supply a HISTORY entry):
3170 :    
3171 :     1. the cross-module inliner now works much better (Monnier)
3172 :     2. representation of weights, frequencies, and probabilities in MLRISC
3173 :     changed in preparation of using those for weighted block placement
3174 :     (Reppy, George)
3175 :    
3176 :     ----------------------------------------------------------------------
3177 : george 1116 Name: Lal George
3178 : george 1124 Date: 2002/03/07 14:44:24 EST 2002
3179 :     Tag: george-20020307-weighted-block-placement
3180 :    
3181 :     Tested the weighted block placement optimization on all architectures
3182 :     (except the hppa) using AMPL to generate the block and edge frequencies.
3183 :     Changes were required in the machine properties to correctly
3184 :     categorize trap instructions. There is an MLRISC flag
3185 :     "weighted-block-placement" that can be used to enable weighted block
3186 :     placement, but this will be ineffective without block/edge
3187 :     frequencies (coming soon).
3188 :    
3189 :    
3190 :     ----------------------------------------------------------------------
3191 :     Name: Lal George
3192 : george 1116 Date: 2002/03/05 17:24:48 EST
3193 :     Tag: george-20020305-linkage-cluster
3194 :    
3195 : george 1124 In order to support the block placement optimization, a new cluster
3196 :     is generated as the very first cluster (called the linkage cluster).
3197 :     It contains a single jump to the 'real' entry point for the compilation
3198 :     unit. Block placement has no effect on the linkage cluster itself, but
3199 :     all the other clusters have full freedom in the manner in which they
3200 :     reorder blocks or functions.
3201 : george 1116
3202 :     On the x86 the typical linkage code that is generated is:
3203 :     ----------------------
3204 :     .align 2
3205 :     L0:
3206 :     addl $L1-L0, 72(%esp)
3207 : george 1124 jmp L1
3208 : george 1116
3209 :    
3210 :     .align 2
3211 :     L1:
3212 :     ----------------------
3213 :    
3214 :     72(%esp) is the memory location for the stdlink register. This
3215 :     must contain the address of the CPS function being called. In the
3216 : george 1124 above example, it contains the address of L0; before
3217 : george 1116 calling L1 (the real entry point for the compilation unit), it
3218 :     must contain the address for L1, and hence
3219 :    
3220 :     addl $L1-L0, 72(%esp)
3221 :    
3222 : george 1124 I have tested this on all architectures except the hppa.The increase
3223 :     in code size is of course negligible
3224 : george 1116
3225 :     ----------------------------------------------------------------------
3226 : leunga 1115 Name: Allen Leung
3227 :     Date: 2002/03/03 13:20:00 EST
3228 :     Tag: leunga-20020303-mlrisc-tools
3229 :    
3230 :     Added #[ ... ] expressions to mlrisc tools
3231 :    
3232 :     ----------------------------------------------------------------------
3233 : blume 1096 Name: Matthias Blume
3234 : blume 1098 Date: 2002/02/27 12:29:00 EST
3235 :     Tag: blume-20020227-cdebug
3236 :     Description:
3237 :    
3238 :     - made types in structure C and C_Debug to be equal
3239 :     - got rid of code duplication (c-int.sml vs. c-int-debug.sml)
3240 :     - there no longer is a C_Int_Debug (C_Debug is directly derived from C)
3241 :    
3242 :     ----------------------------------------------------------------------
3243 :     Name: Matthias Blume
3244 : blume 1096 Date: 2002/02/26 12:00:00 EST
3245 :     Tag: blume-20020226-ffi
3246 :     Description:
3247 :    
3248 :     1. Fixed a minor bug in CM's "noweb" tool:
3249 :     If numbering is turned off, then truly don't number (i.e., do not
3250 :     supply the -L option to noweb). The previous behavior was to supply
3251 :     -L'' -- which caused noweb to use the "default" line numbering scheme.
3252 :     Thanks to Chris Richards for pointing this out (and supplying the fix).
3253 :    
3254 :     2. Once again, I reworked some aspects of the FFI:
3255 :    
3256 :     A. The incomplete/complete type business:
3257 :    
3258 :     - Signatures POINTER_TO_INCOMPLETE_TYPE and accompanying functors are
3259 :     gone!
3260 :     - ML types representing an incomplete type are now *equal* to
3261 :     ML types representing their corresponding complete types (just like
3262 :     in C). This is still safe because ml-nlffigen will not generate
3263 :     RTTI for incomplete types, nor will it generate functions that
3264 :     require access to such RTTI. But when ML code generated from both
3265 :     incomplete and complete versions of the C type meet, the ML types
3266 :     are trivially interoperable.
3267 :    
3268 :     NOTE: These changes restore the full generality of the translation
3269 :     (which was previously lost when I eliminated functorization)!
3270 :    
3271 :     B. Enum types:
3272 :    
3273 :     - Structure C now has a type constructor "enum" that is similar to
3274 :     how the "su" constructor works. However, "enum" is not a phantom
3275 :     type because each "T enum" has values (and is isomorphic to
3276 :     MLRep.Signed.int).
3277 :     - There are generic access operations for enum objects (using
3278 :     MLRep.Signed.int).
3279 :     - ml-nlffigen will generate a structure E_foo for each "enum foo".
3280 :     * The structure contains the definition of type "mlrep" (the ML-side
3281 :     representation type of the enum). Normally, mlrep is the same
3282 :     as "MLRep.Signed.int", but if ml-nlffigen was invoked with "-ec",
3283 :     then mlrep will be defined as a datatype -- thus facilitating
3284 :     pattern matching on mlrep values.
3285 :     ("-ec" will be suppressed if there are duplicate values in an
3286 :     enumeration.)
3287 :     * Constructors ("-ec") or values (no "-ec") e_xxx of type mlrep
3288 :     will be generated for each C enum constant xxx.
3289 :     * Conversion functions m2i and i2m convert between mlrep and
3290 :     MLRep.Signed.int. (Without "-ec", these functions are identities.)
3291 :     * Coversion functions c and ml convert between mlrep and "tag enum".
3292 :     * Access functions (get/set) fetch and store mlrep values.
3293 :     - By default (unless ml-nlffigen was invoked with "-nocollect"), unnamed
3294 :     enumerations are merged into one single enumeration represented by
3295 :     structure E_'.
3296 :    
3297 :     ----------------------------------------------------------------------
3298 : leunga 1080 Name: Allen Leung
3299 : leunga 1094 Date: 2002/02/25 04:45:00 EST
3300 :     Tag: leunga-20020225-cps-spill
3301 :    
3302 :     This is a new implementation of the CPS spill phase.
3303 :     The new phase is in the new file compiler/CodeGen/cpscompile/spill-new.sml
3304 :     In case of problems, replace it with the old file spill.sml
3305 :    
3306 :     The current compiler runs into some serious performance problems when
3307 :     constructing a large record. This can happen when we try to compile a
3308 :     structure with many items. Even a very simple structure like the following
3309 :     makes the compiler slow down.
3310 :    
3311 :     structure Foo = struct
3312 :     val x_1 = 0w1 : Word32.int
3313 :     val x_2 = 0w2 : Word32.int
3314 :     val x_3 = 0w3 : Word32.int
3315 :     ...
3316 :     val x_N = 0wN : Word32.int
3317 :     end
3318 :    
3319 :     The following table shows the compile time, from N=1000 to N=4000,
3320 :     with the old compiler:
3321 :    
3322 :     N
3323 :     1000 CPS 100 spill 0.04u 0.00s 0.00g
3324 :     MLRISC ra 0.06u 0.00s 0.05g
3325 :     (spills = 0 reloads = 0)
3326 :     TOTAL 0.63u 0.07s 0.21g
3327 :    
3328 :     1100 CPS 100 spill 8.25u 0.32s 0.64g
3329 :     MLRISC ra 5.68u 0.59s 3.93g
3330 :     (spills = 0 reloads = 0)
3331 :     TOTAL 14.71u 0.99s 4.81g
3332 :    
3333 :     1500 CPS 100 spill 58.55u 2.34s 1.74g
3334 :     MLRISC ra 5.54u 0.65s 3.91g
3335 :     (spills = 543 reloads = 1082)
3336 :     TOTAL 65.40u 3.13s 6.00g
3337 :    
3338 :     2000 CPS 100 spill 126.69u 4.84s 3.08g
3339 :     MLRISC ra 0.80u 0.10s 0.55g
3340 :     (spills = 42 reloads = 84)
3341 :     TOTAL 129.42u 5.10s 4.13g
3342 :    
3343 :     3000 CPS 100 spill 675.59u 19.03s 11.64g
3344 :     MLRISC ra 2.69u 0.27s 1.38g
3345 :     (spills = 62 reloads = 124)
3346 :     TOTAL 682.48u 19.61s 13.99g
3347 :    
3348 :     4000 CPS 100 spill 2362.82u 56.28s 43.60g
3349 :     MLRISC ra 4.96u 0.27s 2.72g
3350 :     (spills = 85 reloads = 170)
3351 :     TOTAL 2375.26u 57.21s 48.00g
3352 :    
3353 :     As you can see the old cps spill module suffers from some serious
3354 : leunga 1115 performance problem. But since I cannot decipher the old code fully,
3355 :     instead of patching the problems up, I'm reimplementing it
3356 : leunga 1094 with a different algorithm. The new code is more modular,
3357 :     smaller when compiled, and substantially faster
3358 :     (O(n log n) time and O(n) space). Timing of the new spill module:
3359 :    
3360 :     4000 CPS 100 spill 0.02u 0.00s 0.00g
3361 :     MLRISC ra 0.25u 0.02s 0.15g
3362 :     (spills=1 reloads=3)
3363 :     TOTAL 7.74u 0.34s 1.62g
3364 :    
3365 :     Implementation details:
3366 :    
3367 :     As far as I can tell, the purpose of the CPS spill module is to make sure the
3368 :     number of live variables at any program point (the bandwidth)
3369 :     does not exceed a certain limit, which is determined by the
3370 :     size of the spill area.
3371 :    
3372 :     When the bandwidth is too large, we decrease the register pressure by
3373 :     packing live variables into spill records. How we achieve this is
3374 :     completely different than what we did in the old code.
3375 :    
3376 :     First, there is something about the MLRiscGen code generator
3377 :     that we should be aware of:
3378 :    
3379 :     o MLRiscGen performs code motion!
3380 :    
3381 :     In particular, it will move floating point computations and
3382 :     address computations involving only the heap pointer to
3383 :     their use sites (if there is only a single use).
3384 :     What this means is that if we have a CPS record construction
3385 :     statement
3386 :    
3387 :     RECORD(k,vl,w,e)
3388 :    
3389 :     we should never count the new record address w as live if w
3390 :     has only one use (which is often the case).
3391 :    
3392 :     We should do something similar to floating point, but the transformation
3393 :     there is much more complex, so I won't deal with that.
3394 :    
3395 :     Secondly, there are now two new cps primops at our disposal:
3396 :    
3397 :     1. rawrecord of record_kind option
3398 :     This pure operator allocates some uninitialized storage from the heap.
3399 :     There are two forms:
3400 :    
3401 :     rawrecord NONE [INT n] allocates a tagless record of length n
3402 :     rawrecord (SOME rk) [INT n] allocates a tagged record of length n
3403 :     and initializes the tag.
3404 :    
3405 :     2. rawupdate of cty
3406 :     rawupdate cty (v,i,x)
3407 :     Assigns to x to the ith component of record v.
3408 :     The storelist is not updated.
3409 :    
3410 :     We use these new primops for both spilling and increment record construction.
3411 :    
3412 :     1. Spilling.
3413 :    
3414 :     This is implemented with a linear scan algorithm (but generalized
3415 :     to trees). The algorithm will create a single spill record at the
3416 :     beginning of the cps function and use rawupdate to spill to it,
3417 :     and SELECT or SELp to reload from it. So both spills and reloads
3418 :     are fine-grain operations. In contrast, in the old algorithm
3419 :     "spills" have to be bundled together in records.
3420 :    
3421 :     Ideally, we should sink the spill record construction to where
3422 :     it is needed. We can even split the spill record into multiple ones
3423 :     at the places where they are needed. But CPS is not a good
3424 :     representation for global code motion, so I'll keep it simple and
3425 :     am not attempting this.
3426 :    
3427 :     2. Incremental record construction (aka record splitting).
3428 :    
3429 :     Long records with many component values which are simulatenously live
3430 :     (recall that single use record addresses are not considered to
3431 :     be live) are constructed with rawrecord and rawupdate.
3432 :     We allocate space on the heap with rawrecord first, then gradually
3433 :     fill it in with rawupdate. This is the technique suggested to me
3434 :     by Matthias.
3435 :    
3436 :     Some restrictions on when this is applicable:
3437 :     1. It is not a VECTOR record. The code generator currently does not handle
3438 :     this case. VECTOR record uses double indirection like arrays.
3439 :     2. All the record component values are defined in the same "basic block"
3440 :     as the record constructor. This is to prevent speculative
3441 :     record construction.
3442 :    
3443 :     ----------------------------------------------------------------------
3444 :     Name: Allen Leung
3445 : leunga 1086 Date: 2002/02/22 01:02:00 EST
3446 :     Tag: leunga-20020222-mlrisc-tools
3447 :    
3448 :     Minor bug fixes in the parser and rewriter
3449 :    
3450 :     ----------------------------------------------------------------------
3451 :     Name: Allen Leung
3452 : leunga 1085 Date: 2002/02/21 20:20:00 EST
3453 :     Tag: leunga-20020221-peephole
3454 :    
3455 :     Regenerated the peephole files. Some contained typos in the specification
3456 :     and some didn't compile because of pretty printing bugs in the old version
3457 :     of 'nowhere'.
3458 :    
3459 :     ----------------------------------------------------------------------
3460 :     Name: Allen Leung
3461 : leunga 1079 Date: 2002/02/19 20:20:00 EST
3462 :     Tag: leunga-20020219-mlrisc-tools
3463 :     Description:
3464 :    
3465 :     Minor bug fixes to the mlrisc-tools library:
3466 :    
3467 :     1. Fixed up parsing colon suffixed keywords
3468 :     2. Added the ability to shut the error messages up
3469 :     3. Reimplemented the pretty printer and fixed up/improved
3470 :     the pretty printing of handle and -> types.
3471 :     4. Fixed up generation of literal symbols in the nowhere tool.
3472 :     5. Added some SML keywords to to sml.sty
3473 :    
3474 :     ----------------------------------------------------------------------
3475 :     Name: Matthias Blume
3476 : blume 1078 Date: 2002/02/19 16:20:00 EST
3477 :     Tag: blume-20020219-cmffi
3478 :     Description:
3479 :    
3480 :     A wild mix of changes, some minor, some major:
3481 :    
3482 :     * All C FFI-related libraries are now anchored under $c:
3483 :     $/c.cm --> $c/c.cm
3484 :     $/c-int.cm --> $c/internals/c-int.cm
3485 :     $/memory.cm --> $c/memory/memory.cm
3486 :    
3487 :     * "make" tool (in CM) now treats its argument pathname slightly
3488 :     differently:
3489 :     1. If the native expansion is an absolute name, then before invoking
3490 :     the "make" command on it, CM will apply OS.Path.mkRelative
3491 :     (with relativeTo = OS.FileSys.getDir()) to it.
3492 :     2. The argument will be passed through to subsequent phases of CM
3493 :     processing without "going native". In particular, if the argument
3494 :     was an anchored path, then "make" will not lose track of that anchor.
3495 :    
3496 :     * Compiler backends now "know" their respective C calling conventions
3497 :     instead of having to be told about it by ml-nlffigen. This relieves
3498 :     ml-nlffigen from one of its burdens.
3499 :    
3500 :     * The X86Backend has been split into X86CCallBackend and X86StdCallBackend.
3501 :    
3502 :     * Export C_DEBUG and C_Debug from $c/c.cm.
3503 :    
3504 :     * C type encoding in ml-nlffi-lib has been improved to model the conceptual
3505 :     subtyping relationship between incomplete pointers and their complete
3506 :     counterparts. For this, ('t, 'c) ptr has been changed to 'o ptr --
3507 :     with the convention of instantiating 'o with ('t, 'c) obj whenever
3508 :     the pointer target type is complete. In the incomplete case, 'o
3509 :     will be instantiated with some "'c iobj" -- a type obtained by
3510 :     using one of the functors PointerToIncompleteType or PointerToCompleteType.
3511 :    
3512 :     Operations that work on both incomplete and complete pointer types are
3513 :     typed as taking an 'o ptr while operations that require the target to
3514 :     be known are typed as taking some ('t, 'c) obj ptr.
3515 :    
3516 :     voidptr is now a bit "more concrete", namely "type voidptr = void ptr'"
3517 :     where void is an eqtype without any values. This makes it possible
3518 :     to work on voidptr values using functions meant to operate on light
3519 :     incomplete pointers.
3520 :    
3521 :     * As a result of the above, signature POINTER_TO_INCOMPLETE_TYPE has
3522 :     been vastly simplified.
3523 :    
3524 :     ----------------------------------------------------------------------
3525 :     Name: Matthias Blume
3526 : blume 1076 Date: 2002/02/19 10:48:00 EST
3527 :     Tag: blume-20020219-pqfix
3528 :     Description:
3529 :    
3530 :     Applied Chris Okasaki's bug fix for priority queues.
3531 :    
3532 :     ----------------------------------------------------------------------
3533 :     Name: Matthias Blume
3534 : blume 1073 Date: 2002/02/15 17:05:00
3535 : blume 1069 Tag: Release_110_39
3536 :     Description:
3537 :    
3538 : blume 1073 Last-minute retagging is becoming a tradition... :-(
3539 :    
3540 :     This is the working release 110.39.
3541 :    
3542 :     ----------------------------------------------------------------------
3543 :     Name: Matthias Blume
3544 :     Date: 2002/02/15 16:00:00 EST
3545 :     Tag: Release_110_39-orig
3546 :     Description:
3547 :    
3548 : blume 1069 Working release 110.39. New bootfiles.
3549 :    
3550 : blume 1073 (Update: There was a small bug in the installer so it wouldn't work
3551 :     with all shells. So I retagged. -Matthias)
3552 :    
3553 : blume 1069 ----------------------------------------------------------------------
3554 :     Name: Matthias Blume
3555 : blume 1068 Date: 2002/02/15 14:17:00 EST
3556 :     Tag: blume-20020215-showbindings
3557 :     Description:
3558 :    
3559 :     Added EnvRef.listBoundSymbols and CM.State.showBindings. Especially
3560 :     the latter can be useful for exploring what bindings are available at
3561 :     the interactive prompt. (The first function returns only the list
3562 :     of symbols that are really bound, the second prints those but also the
3563 :     ones that CM's autoloading mechanism knows about.)
3564 :    
3565 :     ----------------------------------------------------------------------
3566 :     Name: Matthias Blume
3567 : blume 1067 Date: 2002/02/15 12:08:00 EST
3568 :     Tag: blume-20020215-iptrs
3569 :     Description:
3570 :    
3571 :     Two improvements to ml-nlffigen:
3572 :    
3573 :     1. Write files only if they do not exist or if their current contents
3574 :     do not coincide with what's being written. (That is, avoid messing
3575 :     with the time stamps unless absolutely necessary.)
3576 :    
3577 :     2. Implement a "repository" mechanism for generated files related
3578 :     to "incomplete pointer types". See the README file for details.
3579 :    
3580 :     ----------------------------------------------------------------------
3581 :     Name: Matthias Blume
3582 : blume 1066 Date: 2002/02/14 11:50:00 EST
3583 :     Tag: blume-20020214-quote
3584 :     Description:
3585 :    
3586 :     Added a type 't t_' to tag.sml (in ml-nlffi-lib.cm). This is required
3587 :     because of the new and improved tag generation scheme. (Thanks to Allen
3588 :     Leung for pointing it out.)
3589 :    
3590 :     ----------------------------------------------------------------------
3591 : george 1065 Name: Lal George
3592 :     Date: 2002/02/14 09:55:27 EST 2002
3593 :     Tag: george-20020214-isabelle-bug
3594 :     Description:
3595 :    
3596 :     Fixed the MLRISC bug sent by Markus Wenzel regarding the compilation
3597 :     of Isabelle on the x86.
3598 :    
3599 :     From Allen:
3600 :     -----------
3601 :     I've found the problem:
3602 :    
3603 :     in ra-core.sml, I use the counter "blocked" to keep track of the
3604 :     true number of elements in the freeze queue. When the counter goes
3605 :     to zero, I skip examining the queue. But I've messed up the
3606 :     bookkeeping in combine():
3607 :    
3608 :     else ();
3609 :     case !ucol of
3610 :     PSEUDO => (if !cntv > 0 then
3611 :     (if !cntu > 0 then blocked := !blocked - 1 else ();
3612 :     ^^^^^^^^^^^^^^^^^^^^^^^
3613 :     moveu := mergeMoveList(!movev, !moveu)
3614 :     )
3615 :     else ();
3616 :    
3617 :     combine() is called to coalesce two nodes u and v.
3618 :     I think I was thinking that if the move counts of u and v are both
3619 :     greater than zero then after they are coalesced then one node is
3620 :     removed from the freeze queue. Apparently I was thinking that
3621 :     both u and v are of low degree, but that's clearly not necessarily true.
3622 :    
3623 :    
3624 :     02/12/2002:
3625 :     Here's the patch. HOL now compiles.
3626 :    
3627 :     I don't know how this impact on performance (compile
3628 :     time or runtime). This bug caused the RA (especially on the x86)
3629 :     to go thru the potential spill phase when there are still nodes on the
3630 :     freeze queue.
3631 :    
3632 :    
3633 :    
3634 :    
3635 :     ----------------------------------------------------------------------
3636 : blume 1058 Name: Matthias Blume
3637 : blume 1064 Date: 2002/02/13 22:40:00 EST
3638 :     Tag: blume-20020213-fptr-rtti
3639 :     Description:
3640 :    
3641 :     Fixed a bug in ml-nlffigen that was introduced with one of the previous
3642 :     updates.
3643 :    
3644 :     ----------------------------------------------------------------------
3645 :     Name: Matthias Blume
3646 : blume 1063 Date: 2002/02/13 16:41:00 EST
3647 :     Tag: blume-20020213-cmlpq
3648 :     Description:
3649 :    
3650 :     Added new priority queue export symbols (which have just been added to
3651 :     smlnj-lib.cm) to CML's version of smlnj-lib.cm. (Otherwise CML would
3652 :     not compile and the installer would choke.)
3653 :    
3654 :     ----------------------------------------------------------------------
3655 :     Name: Matthias Blume
3656 : blume 1062 Date: 2002/02/13 16:15:00 EST
3657 :     Tag: blume-20020213-various
3658 :     Description:
3659 :    
3660 :     1. More tweaks to ml-nlffigen:
3661 :    
3662 :     - better internal datastructures (resulting in slight speedup)
3663 :     - "-match" option requires exact match
3664 :     - "localized" gensym counters (untagged structs/unions nested within
3665 :     other structs/unions or within typedefs get a fresh counter; their
3666 :     tag will be prefixed by a concatenation of their parents' tags)
3667 :     - bug fixes (related to calculation of transitive closure of types
3668 :     to be included in the output)
3669 :    
3670 :     2. Minor Basis updates:
3671 :    
3672 :     - added implementations for List.collate and Option.app
3673 :    
3674 :     ----------------------------------------------------------------------
3675 :     Name: Matthias Blume
3676 : blume 1060 Date: 2002/02/11 15:55:00 EST
3677 :     Tag: blume-20020211-gensym
3678 :     Description:
3679 :    
3680 :     Added a "-gensym" option to command line of ml-nlffigen. This can be
3681 :     used to specify a "stem" -- a string that is inserted in all "gensym'd"
3682 :     names (ML structure names that correspond to unnamed C structs, unions,
3683 :     and enums), so that separate runs of ml-nlffigen do not clash.
3684 :    
3685 :     ----------------------------------------------------------------------
3686 :     Name: Matthias Blume
3687 : blume 1059 Date: 2002/02/11 12:05:00 EST
3688 :     Tag: blume-20020211-gensml
3689 :     Description:
3690 :    
3691 :     A quick fix for a problem with GenSML (in the pgraph-util library):
3692 :     Make generation of toplevel "local" optional. (Strictly speaking,
3693 :     signature definitions within "local" are not legal SML.)
3694 :    
3695 :     Other than that: updates to INSTALL and cm/TODO.
3696 :    
3697 :     ----------------------------------------------------------------------
3698 :     Name: Matthias Blume
3699 : blume 1058 Date: 2002/02/08 15:00:00 EST
3700 :     Tag: blume-20020208-uniquepid
3701 :     Description:
3702 :    
3703 :     0. Version number has been bumped to 110.38.1. NEW BOOTFILES!!!
3704 :    
3705 :     1. The installer (config/install.sh) has gotten smarter:
3706 :    
3707 :     - Configuration options are a bit easier to specify now
3708 :     (in config/targets).
3709 :     - Bug in recognizing .tar.bz2 files fixed.
3710 :     - Installer automatically resolves dependencies between
3711 :     configuration options (e.g., if you ask for eXene, you will
3712 :     also get cml -- regardless whether you asked for it or not).
3713 :     - Installer can run in "quieter mode" by setting the environment
3714 :     variable INSTALL_QUIETLY to "true". "Quieter" does not mean
3715 :     "completely silent", though.
3716 :     - Build HashCons library as part of smlnj-lib.
3717 :    
3718 :     2. A new scheme for assigning persistent identifiers to compilation
3719 :     units (and, by extension, to types etc.) has been put into place.
3720 :     This fixes a long-standing bug where types and even dynamic values
3721 :     can get internally confused, thereby compromising type safety
3722 :     (abstraction) and dynamic correctness. See
3723 :    
3724 :     http://cm.bell-labs.com/cm/cs/who/blume/pid-confusion.tgz
3725 :    
3726 :     for an example of how things could go wrong until now.
3727 :    
3728 :     The downside of the new scheme is that pids are not quite as
3729 :     persistent as they used to be: CM will generate a fresh pid
3730 :     for every compilation unit that it thinks it sees for the first
3731 :     time. That means that if you compile starting from a clean, fresh
3732 :     source tree at two different times, you end up with different
3733 :     binaries.
3734 :    
3735 :     Cutoff recompilation, however, has not been compromised because
3736 :     CM keeps pid information in special caches between runs.
3737 :    
3738 :     ----------------------------------------------------------------------
3739 : george 1053 Name: Lal George
3740 : george 1055 Date: 2002/02/07 15:34:13 EST 2002
3741 :     Tag: <none>
3742 :     Description:
3743 :    
3744 :     Compilers that generate assembly code may produce global labels
3745 :     whose value is resolved at link time. The various peephole optimization
3746 :     modules did not take this in account.
3747 :    
3748 :     TODO. The Labels.addrOf function should really return an option
3749 :     type so that clients are forced to deal with this issue, rather
3750 :     than an exception being raised.
3751 :    
3752 :     ----------------------------------------------------------------------
3753 :     Name: Lal George
3754 : george 1053 Date: 2002/02/06 13:55:02 EST
3755 :     Tag: george-20020206-ra-breakup
3756 :     Description:
3757 :    
3758 :     1. A bug fix from Allen.
3759 :    
3760 :     A typo causes extra fstp %st(0)'s to be generated at compensation
3761 :     edges, which might cause stack underflow traps at runtime. This
3762 :     occurs in fft where there are extraneous fstps right before the 'into'
3763 :     trap instruction (in this case they are harmless since none of the
3764 :     integers overflow.)
3765 :    
3766 : george 1054 2. Pulled out various utility modules that were embedded in the modules
3767 : george 1053 of the register allocator. I need these modules for other purposes, but
3768 : george 1054 they are not complete enough to put into a library (just yet).
3769 : george 1053 ----------------------------------------------------------------------
3770 : blume 1049 Name: Matthias Blume
3771 :     Date: 2002/01/31 16:05:00 EST
3772 :     Tag: blume-20020131-sparc-ccalls
3773 :     Description:
3774 :    
3775 :     1. C-calls on Sparc needlessly allocated a huge chunk (96 bytes)
3776 :     of extra stack space by mistake. Fixed.
3777 :    
3778 :     2. Bug in logic of handling of command-line options in ml-nlffigen fixed.
3779 :    
3780 :     ----------------------------------------------------------------------
3781 : leunga 1048 Name: Allen Leung
3782 :     Date: 2002/01/30
3783 :     Tag: leunga-20020130-nowhere-bug-fix
3784 :     Description:
3785 :    
3786 :     MLRISC bug fixes:
3787 :     1. Fixed a bindings computation bug in the 'nowhere' program generator tool.
3788 :     2. MachineInt.fromString was negating its value.
3789 :    
3790 :     ----------------------------------------------------------------------
3791 : blume 1039 Name: Matthias Blume
3792 : blume 1047 Date: 2002/01/29
3793 :     Tag: blume-20020129-INSTALL
3794 :     Description:
3795 :    
3796 :     - Added somewhat detailed installation instructions (file INSTALL).
3797 :     - Fixed curl-detection bug in config/install.sh.
3798 :     - It is now possible to select the URL getter using the URLGETTER
3799 :     environment variable:
3800 :    
3801 :     not set / "unknown" --> automatic detection (script tries wget,
3802 :     curl, and lynx)
3803 :     "wget" / "curl" / "lynx" --> use the specified program (script "knows"
3804 :     how to properly invoke them)
3805 :     other --> use $URLGETTER directly, it must take
3806 :     precisely two command-line arguments
3807 :     (source URL and destination file name)
3808 :    
3809 :     ----------------------------------------------------------------------
3810 :     Name: Matthias Blume
3811 : blume 1044 Date: 2002/01/28
3812 : blume 1045 Tag: blume-20020128-sparc-ccalls
3813 :     Description:
3814 :    
3815 :     - Fixed problem with calculation of "used" registers in sparc-c-calls.
3816 :     - Make use of the allocParam argument in sparc-c-calls.
3817 :    
3818 :     ----------------------------------------------------------------------
3819 :     Name: Matthias Blume
3820 :     Date: 2002/01/28
3821 : blume 1044 Tag: blume-20020128-allocParam
3822 :     Description:
3823 :    
3824 :     John Reppy: Changes c-calls API to accept client-callback for
3825 :     allocating extra stack space.
3826 :     me: Corresponding changes to mlriscGen (using a dummy argument that
3827 :     does not change the current behavior).
3828 :    
3829 :     ----------------------------------------------------------------------
3830 :     Name: Matthias Blume
3831 : blume 1040 Date: 2002/01/28 12:00:00
3832 :     Tag: Release_110_38
3833 :     Description:
3834 :    
3835 :     This time for real!!!
3836 :    
3837 :     ----------------------------------------------------------------------
3838 :     Name: Matthias Blume
3839 : blume 1039 Date: 2002/01/28 10:56:00 EST
3840 :     Tag: blume-20020128-retraction
3841 :     Description:
3842 :    
3843 :     0. Retracted earlier 110.38. (The Release_110_38 tag has been replaced
3844 :     with blume-Release_110_38-retracted.)
3845 :    
3846 :     1. Fixed a problem with incorrect rounding modes in real64.sml.
3847 :     (Thanks to Andrew Mccreight <andrew.mccreight@yale.edu>.)
3848 :    
3849 :     2. A bug in ml-nlffigen related to the handling of unnamed structs, unions,
3850 :     and enums fixed. The naming of corresponding ML identifiers should
3851 :     now be consistent again.
3852 :    
3853 :     ----------------------------------------------------------------------
3854 : leunga 1038 Name: Allen Leung
3855 :     Date: 2002/01/27
3856 :     Tag: leunga-20020127-nowhere
3857 :     Description:
3858 :    
3859 :     Added a target called nowhere in the configuration scripts.
3860 :     Enabling this will build the MLRISC 'nowhere' tool (for translating
3861 :     programs with where-clauses into legal SML code) during installation.
3862 :    
3863 :     ----------------------------------------------------------------------
3864 : blume 1036 Name: Matthias Blume
3865 : leunga 1038 Date: 2002/01/25 21:27:00 EST
3866 : blume 1039 Tag: blume-Release_110_38-retracted
3867 : blume 1037 Description:
3868 :    
3869 :     Call it a (working) release! Version is 110.38. Bootfiles are ready.
3870 :    
3871 :     README will be added later.
3872 :    
3873 : blume 1039 !!! NOTE: Re-tagged as blume-Release_110_38-retracted. Original tag
3874 :     (Release_110_38) removed. Reason: Last-minute bug fixes.
3875 :    
3876 : blume 1037 ----------------------------------------------------------------------
3877 :     Name: Matthias Blume
3878 : blume 1036 Date: 2002/01/25
3879 :     Tag: blume-20020125-ffi
3880 :     Description:
3881 :    
3882 :     A large number of tweaks and improvements to ml-nlffi-lib and
3883 :     ml-nlffigen:
3884 :    
3885 :     - ML represenation types have been streamlined
3886 :     - getter and setter functions work with concrete values, not abstract
3887 :     ones where possible
3888 :     - ml-nlffigen command line more flexible (see README file there)
3889 :     - some bugs have been fixed (hopefully)
3890 :    
3891 :     ----------------------------------------------------------------------
3892 : george 1034 Name: Lal George
3893 :     Date: 2002/01/24
3894 :     Tag: george-20020124-risc-ra-interface
3895 :     Description:
3896 :    
3897 :     There is a dramatic simplification in the interface to the
3898 :     register allocator for RISC architectures as a result of making
3899 :     parallel copy instructions explicit.
3900 :    
3901 :     ----------------------------------------------------------------------
3902 : blume 1028 Name: Matthias Blume
3903 : blume 1032 Date: 2002/01/22
3904 :     Tag: blume-20020122-x86-ccalls
3905 :     Description:
3906 :    
3907 :     Bug fix for c-calls on x86 (having to do with how char- and
3908 :     short-arguments are being handled).
3909 :    
3910 :     ----------------------------------------------------------------------
3911 :     Name: Matthias Blume
3912 : blume 1031 Date: 2002/01/21
3913 :     Tag: blume-20020121-ff
3914 :     Description:
3915 :    
3916 :     Another day of fiddling with the FFI...
3917 :    
3918 :     1. Bug fix/workaround: CKIT does not complain about negative array
3919 :     dimensions, so ml-nlffigen has to guard itself against this possibility.
3920 :     (Otherwise a negative dimension would send it into an infinite loop.)
3921 :    
3922 :     2. Some of the abstract types (light objects, light pointers, most "base"
3923 :     types) in structure C are now eqtypes.
3924 :    
3925 :     3. Added constructors and test functions for NULL function pointers.
3926 :    
3927 :     ----------------------------------------------------------------------
3928 :     Name: Matthias Blume
3929 : blume 1028 Date: 2002/01/18
3930 : blume 1030 Tag: blume-20020118-ready-for-new-release
3931 :     Description:
3932 :    
3933 :     Made config/srcarchiveurl point to a new place. (Will provide boot
3934 :     files shortly.)
3935 :    
3936 :     Maybe we christen this to be 110.38?
3937 :    
3938 :     ----------------------------------------------------------------------
3939 :     Name: Matthias Blume
3940 :     Date: 2002/01/18
3941 : blume 1029 Tag: blume-20020118-more-ffifiddle
3942 :     Description:
3943 :    
3944 :     Today's FFI fiddling:
3945 :    
3946 :     - Provided a structure CGetSet with "convenient" versions of C.Get.* and
3947 :     C.Set.* that use concrete (MLRep.*) arguments and results instead
3948 :     of abstract ones.
3949 :    
3950 :     - Provided word-style bit operations etc. for "int" representation
3951 :     types in MLRep.S<Foo>Bitops where <Foo> ranges over Char, Int, Short,
3952 :     and Long.
3953 :    
3954 :     ----------------------------------------------------------------------
3955 :     Name: Matthias Blume
3956 :     Date: 2002/01/18
3957 : blume 1028 Tag: blume-20020118-use-x86-fp
3958 :     Description:
3959 :    
3960 :     Now that x86-fast-fp seems to be working, I turned it back on again
3961 :     by default. (Seems to work fine now, even with the FFI.)
3962 :    
3963 :     Other than that, I added some documentation about the FFI to
3964 :     src/ml-nlffigen/README and updated the FFI test examples in
3965 :     src/ml-nlffi-lib/Tests/*.
3966 :    
3967 :     ----------------------------------------------------------------------
3968 : leunga 1025 Name: Allen Leung
3969 :     Date: 2002/01/17
3970 :     Tag: leunga-20020117-x86-fast-fp-call
3971 :     Description:
3972 :    
3973 :     1. Fixed a problem with handling return fp values when x86's fast fp
3974 :     mode is turned on.
3975 :    
3976 :     2. Minor pretty printing fix for cellset. Print %st(0) as %st(0) instead
3977 :     of %f32.
3978 :    
3979 :     3. Added a constructor INT32lit to the ast of MLRISC tools.
3980 :    
3981 :     ----------------------------------------------------------------------
3982 : blume 1021 Name: Matthias Blume
3983 :     Date: 2002/01/16
3984 :     Tag: blume-20020116-ffifiddle
3985 :     Description:
3986 :    
3987 :     More fiddling with the FFI interface:
3988 :    
3989 :     - Make constness 'c instead of rw wherever possible. This eliminates
3990 :     the need for certain explicit coercions. (However, due to ML's
3991 :     value polymorphism, there will still be many cases where explicit
3992 :     coercions are necessary. Phantom types are not the whole answer
3993 :     to modeling a subtyping relationship in ML.)
3994 :    
3995 :     - ro/rw coersions for pointers added. (Avoids the detour through */&.)
3996 :    
3997 :     - "printf" test example added to src/ml-nlffi-lib/Tests. (Demonstrates
3998 :     clumsy workaround for varargs problem.)
3999 :    
4000 :     ----------------------------------------------------------------------
4001 : george 1016 Name: Lal George
4002 :     Date: 2002/01/15
4003 :     Tag: <none>
4004 :     Description:
4005 :    
4006 :     1. Since COPY instructions are no longer native to the architecture,
4007 :     a generic functor can be used to implement the expandCopies function.
4008 :    
4009 :     2. Allowed EXPORT and IMPORT pseudo-op declarations to appear inside a
4010 :     TEXT segment.
4011 :    
4012 :     ----------------------------------------------------------------------
4013 : blume 1011 Name: Matthias Blume
4014 : blume 1015 Date: 2002/01/15
4015 :     Tag: blume-20020115-ffiupdates
4016 :     Description:
4017 :    
4018 :     1. Fix for bug resulting in single-precision float values being returned
4019 :     incorrectly from FFI calls.
4020 :    
4021 :     2. Small modifications to C FFI API:
4022 :    
4023 :     - memory-allocation routines return straight objects (no options)
4024 :     and raise an exception in out-of-memory situations
4025 :     - unsafe extensions to cast between function pointers and pointers
4026 :     from/to ints
4027 :     - added structure C_Debug as an alternative to structure C where
4028 :     pointer-dereferencing (|*| and |*!) always check for null-pointers
4029 :     - added open_lib' to DynLinkage; open_lib' works like open_lib
4030 :     but also takes a (possibly empty) list of existing library handles
4031 :     that the current library depends on
4032 :    
4033 :     ----------------------------------------------------------------------
4034 :     Name: Matthias Blume
4035 : blume 1011 Date: 2002/01/10
4036 :     Tag: blume-20020110-newffigen
4037 :     Description:
4038 :    
4039 :     1. Updates to portable graph code.
4040 :    
4041 :     2. Major update to ml-nlffigen and ml-nlffi-lib. Things are much
4042 :     more scalable now so that even huge interfaces such as the one
4043 :     for GTK compile in finite time and space. :-)
4044 :     See src/ml-nlffigen/README for details on what's new.
4045 :    
4046 :     ----------------------------------------------------------------------
4047 : george 1003 Name: Lal George
4048 : george 1009 Date: 2001/01/09 14:31:35 EST 2002
4049 :     Tag: george-20011206-rm-native-copy
4050 :     Description:
4051 :    
4052 :     Removed the native COPY and FCOPY instructions
4053 :     from all the architectures and replaced it with the
4054 :     explicit COPY instruction from the previous commit.
4055 :    
4056 :     It is now possible to simplify many of the optimizations
4057 :     modules that manipulate copies. This has not been
4058 :     done in this change.
4059 :    
4060 :     ----------------------------------------------------------------------
4061 :     Name: Lal George
4062 : george 1003 Date: 2001/12/06 16:50:13 EST 2001
4063 :     Tag: george-20011206-mlrisc-instruction
4064 :     Description:
4065 : george 824
4066 : george 1003 Changed the representation of instructions from being fully abstract
4067 :     to being partially concrete. That is to say:
4068 :    
4069 :     from
4070 :     type instruction
4071 :    
4072 :     to
4073 :     type instr (* machine instruction *)
4074 :    
4075 :     datatype instruction =
4076 :     LIVE of {regs: C.cellset, spilled: C.cellset}
4077 :     | KILL of {regs: C.cellset, spilled: C.cellset}
4078 :     | COPYXXX of {k: CB.cellkind, dst: CB.cell list, src: CB.cell list}
4079 :     | ANNOTATION of {i: instruction, a: Annotations.annotation}
4080 :     | INSTR of instr
4081 :    
4082 :     This makes the handling of certain special instructions that appear on
4083 :     all architectures easier and uniform.
4084 :    
4085 :     LIVE and KILL say that a list of registers are live or killed at the
4086 :     program point where they appear. No spill code is generated when an
4087 :     element of the 'regs' field is spilled, but the register is moved to
4088 :     the 'spilled' (which is present, more for debugging than anything else).
4089 :    
4090 :     LIVE replaces the (now deprecated) DEFFREG instruction on the alpha.
4091 :     We used to generate:
4092 :    
4093 :     DEFFREG f1
4094 :     f1 := f2 + f3
4095 :     trapb
4096 :    
4097 :     but now generate:
4098 :    
4099 :     f1 := f2 + f3
4100 :     trapb
4101 :     LIVE {regs=[f1,f2,f3], spilled=[]}
4102 :    
4103 :     Furthermore, the DEFFREG (hack) required that all floating point instruction
4104 :     use all registers mentioned in the instruction. Therefore f1 := f2 + f3,
4105 :     defines f1 and uses [f1,f2,f3]! This hack is no longer required resulting
4106 :     in a cleaner alpha implementation. (Hopefully, intel will not get rid of
4107 :     this architecture).
4108 :    
4109 :     COPYXXX is intended to replace the parallel COPY and FCOPY available on
4110 :     all the architectures. This will result in further simplification of the
4111 :     register allocator that must be aware of them for coalescing purposes, and
4112 :     will also simplify certain aspects of the machine description that provides
4113 :     callbacks related to parallel copies.
4114 :    
4115 :     ANNOTATION should be obvious, and now INSTR represents the honest to God
4116 :     machine instruction set!
4117 :    
4118 :     The <arch>/instructions/<arch>Instr.sml files define certain utility
4119 :     functions for making porting easier -- essentially converting upper case
4120 :     to lower case. All machine instructions (of type instr) are in upper case,
4121 :     and the lower case form generates an MLRISC instruction. For example on
4122 :     the alpha we have:
4123 :    
4124 :     datatype instr =
4125 :     LDA of {r:cell, b:cell, d:operand}
4126 :     | ...
4127 :    
4128 :     val lda : {r:cell, b:cell, d:operand} -> instruction
4129 :     ...
4130 :    
4131 :     where lda is just (INSTR o LDA), etc.
4132 :    
4133 : leunga 815 ----------------------------------------------------------------------
4134 : blume 986 Name: Matthias Blume
4135 : blume 993 Date: 2001/11/22 21:40:00 EST
4136 :     Tag: Release_110_37
4137 :     Description:
4138 :    
4139 :     Release 110.37. This time for real.
4140 :    
4141 :     ----------------------------------------------------------------------
4142 :     Name: Matthias Blume
4143 : blume 988 Date: 2001/11/21 16:35:00 EST
4144 :     Tag: blume-20011121-foot-in-mouth
4145 :     Description:
4146 :    
4147 :     Removed the "Release_110_37" tag because of a serious bug.
4148 :     This will be re-tagged once the bug is fixed.
4149 :    
4150 :     ----------------------------------------------------------------------
4151 :     Name: Matthias Blume
4152 : blume 987 Date: 2001/11/21 16:14:00 EST
4153 :     Tag: blume-20011121-forgottenfile
4154 :     Description:
4155 :    
4156 :     Forgot to add a file. (Just a .tex-file -- part of
4157 :     the CM manual source.)
4158 :    
4159 :     ----------------------------------------------------------------------
4160 :     Name: Matthias Blume
4161 : blume 986 Date: 2001/11/21 16:10:00 EST
4162 : blume 988 Tag: blume-20011121-invalid_110_37
4163 : blume 986 Description:
4164 :    
4165 : blume 988 Note: I removed the original tag "Release_110_37" from this commit
4166 :     because we found a serious bug in all non-x86 backends.
4167 :     - Matthias
4168 :    
4169 : blume 986 1. Modifications to the SML/NJ code generator and to the runtime system
4170 :     so that code object name strings are directly inserted into code
4171 :     objects at code generation time. The only business the runtime system
4172 :     has with this is now to read the name strings on occasions.
4173 :     (The encoding of the name string has also changed somewhat.)
4174 :    
4175 :     2. CM now implements a simple "set calculus" for specifying export lists.
4176 :     In particular, it is now possible to refer to the export lists of
4177 :     other libraries/groups/sources and form unions as well as differences.
4178 :     See the latest CM manual for details.
4179 :    
4180 :     3. An separate notion of "proxy" libraries has again be eliminated from
4181 :     CM's model. (Proxy libraries are now simply a special case of using
4182 :     the export list calculus.)
4183 :    
4184 :     4. Some of the existing libraries now take advantage of the new set
4185 :     calculus.
4186 :     (Notice that not all libraries have been converted because some
4187 :     of the existing .cm-files are supposed to be backward compatible
4188 :     with 110.0.x.)
4189 :    
4190 :     5. Some cleanup in stand-alone programs. (Don't use "exnMessage" -- use
4191 :     "General.exnMessage"! The former relies on a certain hook to be
4192 :     initialized, and that often does not happen in the stand-alone case.)
4193 :    
4194 :     ----------------------------------------------------------------------
4195 : george 984 Name: Lal George
4196 :     Date: 2001/11/21 13:56:18 EST
4197 :     Tag: george-2001121-pseudo-ops
4198 :     Description:
4199 :    
4200 :     Implemented a complete redesign of MLRISC pseudo-ops. Now there
4201 :     ought to never be any question of incompatabilities with
4202 :     pseudo-op syntax expected by host assemblers.
4203 :    
4204 :     For now, only modules supporting GAS syntax are implemented
4205 :     but more should follow, such as MASM, and vendor assembler
4206 :     syntax, e.g. IBM as, Sun as, etc.
4207 :    
4208 :     ----------------------------------------------------------------------
4209 : blume 977 Name: Matthias Blume
4210 :     Date: 2001/11/14 11:52:00 EST
4211 :     Tag: blume-20011114-srcname
4212 :     Description:
4213 :    
4214 :     1. Routed the name of the current source file to mlriscgen where it
4215 :     should be directly emitted into the code object. (This last part
4216 :     is yet to be done.)
4217 :    
4218 :     2. Some cleanup of the pgraph code to make it match the proposal that
4219 :     I put out the other day. (The proposal notwithstanding, things are
4220 :     still in flux here.)
4221 :    
4222 :     ----------------------------------------------------------------------
4223 : george 976 Name: Lal George
4224 :     Date: 2001/11/14 09:44:04 EST
4225 :     Tag:
4226 :     Description:
4227 :    
4228 :     Fix for a backpatching bug reported by Allen.
4229 :    
4230 :     Because the boundary between short and long span-dependent
4231 :     instructions is +/- 128, there are an astounding number of
4232 :     span-dependent instructions whose size is over estimated.
4233 :    
4234 :     Allen came up with the idea of letting the size of span
4235 :     dependent instructions be non-monotonic, for a maxIter
4236 :     number of times, after which the size must be monotonically
4237 :     increasing.
4238 :    
4239 :     This table shows the number of span-dependent instructions
4240 :     whose size was over-estimated as a function of maxIter, for the
4241 :     file Parse/parse/ml.grm.sml:
4242 :    
4243 :     maxIter # of instructions:
4244 :     10 687
4245 :     20 438
4246 :     30 198
4247 :     40 0
4248 :    
4249 :     In compiling the compiler, there is no significant difference in
4250 :     compilation speed between maxIter=10 and maxIter=40. Actually,
4251 :     my measurements showed that maxIter=40 was a tad faster than
4252 :     maxIter=10! Also 96% of the files in the compiler reach a fix
4253 :     point within 13 iterations, so fixing maxIter at 40, while high,
4254 :     is okay.
4255 :    
4256 :     ----------------------------------------------------------------------
4257 : blume 975 Name: Matthias Blume
4258 :     Date: 2001/10/31 15:25:00 EST
4259 :     Tag: blume-20011031-pgraph
4260 :     Description:
4261 :    
4262 :     CKIT:
4263 :     * Changed the "Function" constructor of type Ast.ctype to carry optional
4264 :     argument identifiers.
4265 :     * Changed the return type of TypeUtil.getFunction accordingly.
4266 :     * Type equality ignores the argument names.
4267 :     * TypeUtil.composite tries to preserve argument names but gives up quickly
4268 :     if there is a mismatch.
4269 :    
4270 :     installation script:
4271 :     * attempts to use "curl" if available (unless "wget" is available as well)
4272 :    
4273 :     CM:
4274 :     * has an experimental implementation of "portable graphs" which I will
4275 :