Home My Page Projects Code Snippets Project Openings SML/NJ
Summary Activity Forums Tracker Lists Tasks Docs Surveys News SCM Files

SCM Repository

[smlnj] Annotation of /sml/trunk/HISTORY
ViewVC logotype

Annotation of /sml/trunk/HISTORY

Parent Directory Parent Directory | Revision Log Revision Log


Revision 658 - (view) (download)

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 :     Name:
11 :     Date:
12 :     Tag: <post-commit CVS tag>
13 :     Description:
14 : leunga 591 ----------------------------------------------------------------------
15 : blume 658 Name: Matthias Blume
16 :     Date: 2000/06/12 11:40:00
17 :     Tag: blume-20000612-parmakefix
18 :     Description:
19 :    
20 :     More cleanup after changing the file naming scheme: This time I
21 :     repaired the parallel make mechanism for CMB.make which I broke earlier.
22 :    
23 :     ----------------------------------------------------------------------
24 : leunga 657 Name: Allen Leung
25 :     Date: 2000/06/09 01:25:00
26 :     Tag: leunga-20000609-various
27 :    
28 :     None of these things should affect normal SML/NJ operations
29 :    
30 :     1. Peephole improvements provided by Fermin (c--)
31 :     2. New annotation DEFUSE for adding extra dependence (moby)
32 :     3. New X86 LOCK instructions (moby)
33 :     4. New machine description language for reservation tables (scheduling)
34 :     5. Fixes to various optimization/analysis modules (branch chaining, dominator
35 :     trees etc.)
36 :     6. I've changed the CM files so that they can work with versions
37 :     110.0.6, 110.25 and 110.28
38 :    
39 :     ----------------------------------------------------------------------
40 : blume 652 Name: Matthias Blume
41 : blume 656 Date: 2000/06/09 12:40:00
42 :     Tag: blume-20000609-log
43 :     Description:
44 :    
45 :     - Removed all(?) remaining RCS Log entries from sources.
46 :    
47 :     - Fixed bug in ml-yacc and ml-lex sources (use explicit anchors for
48 :     anchored paths).
49 :    
50 :     ----------------------------------------------------------------------
51 :     Name: Matthias Blume
52 : blume 653 Date: 2000/06/07 17:00:00 JST
53 :     Tag: blume-20000607-no-implicit-anchors
54 :     Description:
55 :    
56 :     1. This update changes the default setting for
57 :     CM.Control.implicit_anchors from true to false. This means that
58 :     implicit anchors are no longer permitted by default. I also tried to
59 :     make sure that nothing else still relies on implicit anchors.
60 :     (This is the next step on the schedule towards a CM that does not even
61 :     have the notion of implicit anchors anymore.)
62 :    
63 :     2. More CM manual updates.
64 :    
65 :     3. I managed to track down and fix the pickling bug I mentioned last
66 :     time. Because of the previously existing workaround, this entails no
67 :     immediate practical changes.
68 :    
69 :     ----------------------------------------------------------------------
70 :     Name: Matthias Blume
71 : blume 652 Date: 2000/06/06 11:15:00 JST
72 :     Tag: blume-20000606-lazierpickle
73 :     Description:
74 :    
75 :     !!!! NEW BOOT FILES !!!!
76 :    
77 :     * The main purpose of this update is to make library pickles lazier in
78 :     order to reduce the initial space penalty for autoloading a library.
79 :     As a result, it is now possible to have $smlnj/compiler.cm
80 :     pre-registered. This should take care of the many complaints or
81 :     inquiries about missing structure Compiler. This required changes to
82 :     CM's internal data structures and small tweaks to some algorithms.
83 :    
84 :     As a neat additional effect, it is no longer necessary (for the sake
85 :     of lean heap image files) to distinguish between a "minimal" CM and a
86 :     "full" CM. Now, there is only one CM (i.e., the "full" version:
87 :     $smlnj/cm.cm aka $smlnj/cm/full.cm), and it is always available at the
88 :     interactive top level. ($smlnj/cm/minimal.cm is gone.)
89 :    
90 :     To make the life of compiler-hackers easier, "makeml" now also
91 :     pre-registers $smlnj/cmb.cm (aka $smlnj/cmb/current.cm). In other
92 :     words, after you bootstrap a new sml for the first time, you will not
93 :     have to autoload $smlnj/cmb.cm again afterwards. (The first time
94 :     around you will still have to do it, though.)
95 :    
96 :     * A second change consists of major updates to the CM manual. There
97 :     are now several appendices with summary information and also a full
98 :     specification of the CM description file syntax.
99 :    
100 :     * In directory src/system I added the script "allcross". This script
101 :     invokes sml and cross-compiles the compiler for all supported
102 :     architectures. (Useful when providing a new set of boot files.)
103 :    
104 :     * There seems to be a latent bug in my "lazy pickles" mechanism. I
105 :     added a small tweak to pickle-util.sml to work around this problem,
106 :     but it is not a proper fix yet. I will investigate further. (The
107 :     effect of the bug was an inflation of library pickle size.)
108 :    
109 :     * Version number increased to 110.28.1 (to avoid compatibility problems).
110 :    
111 :     ----------------------------------------------------------------------
112 : leunga 646 Name: Allen Leung
113 : leunga 648 Date: 2000/05/25 17:28 EDT
114 :     Tag: leunga-20000525-ra
115 :     Description:
116 :    
117 :     Fixed a bug in freezing phase of the register allocator.
118 :    
119 :     ----------------------------------------------------------------------
120 :     Name: Allen Leung
121 : leunga 647 Date: 2000/05/15 22:53 EDT
122 : leunga 646 Tag: leunga-20000515-alpha-x86-ra
123 :     Description:
124 :    
125 :     1. Alpha
126 :    
127 :     Slight cleanup. Removed the instruction SGNXL
128 :    
129 :     2. X86
130 :    
131 :     Added the following instructions to the instruction set:
132 :    
133 :     ROLx, RORx,
134 :     BTx, BTSx, BTLx, BTRx,
135 :     XCHGx, and variants with the LOCK prefix
136 :    
137 :     3. Register Allocation
138 :    
139 :     The module ra-rewrite-with-renaming has been improved.
140 :    
141 : leunga 647 These have no effect on SML/NJ.
142 :    
143 : leunga 646 ----------------------------------------------------------------------
144 : blume 642 Name: Matthias Blume
145 : blume 645 Date: 2000/05/15 16:20:00 JST
146 :     Tag: blume-20000515-lightrebuild
147 :     Description:
148 :    
149 :     1. I added an alternative to "-rebuild" to "makeml". The difference is
150 :     that prior to calling CMB.make' the CM-variable "LIGHT" will be
151 :     defined. In effect, the command will not build any cross-compiler
152 :     backends and therefore finish more quickly.
153 :    
154 :     The "fixpt" script also takes a "-light" switch to be able to use
155 :     this new facility while compiling for a fixpoint.
156 :    
157 :     2. I replaced all mentions of anchored paths in group owner specifications
158 :     with simple relative paths (usually starting with "..").
159 :     The rationale is that a library's internal workings should not be
160 :     compromised by the lack of some anchor. (An anchor is necessary
161 :     for someone who wants to refer to the library by an anchored path,
162 :     but it should not be necessary to build the same library in the first
163 :     place.)
164 :    
165 :     3. I changed the way CM's tool mechanism determines the shell command
166 :     string used for things like ml-yacc etc. so that it does not break
167 :     when CM.Control.implicit_anchors is turned off.
168 :    
169 :     ----------------------------------------------------------------------
170 :     Name: Matthias Blume
171 : blume 644 Date: 2000/05/12 18:20:00 JST
172 :     Tag: blume-20000512-ml-build
173 :     Description:
174 :    
175 :     Fixed a bug in config/_ml-build that prevented ml-yacc and ml-lex from
176 :     getting installed properly (by config/install.sh).
177 :    
178 :     ----------------------------------------------------------------------
179 :     Name: Matthias Blume
180 : blume 643 Date: 2000/05/12 17:30:00 JST
181 :     Tag: blume-20000512-anchors
182 :     Description:
183 :    
184 :     !!! NEW BOOT FILES !!!
185 :    
186 :     This change is in preparation of fading out support for "implicitly
187 :     anchored path names". I went through all sources and used the
188 :     explicit (and relatively new) $-notation. See system/README and the
189 :     CM manual for more info on this.
190 :    
191 :     I also modified the anchoring scheme for some things such as "smlnj",
192 :     "MLRISC", "cm", etc. to take advantage of the fact that explicit
193 :     anchors are more expressive: anchor name and first arc do not have to
194 :     coincide. This entails the following user-visible change:
195 :    
196 :     You have to write $smlnj/foo/bar instead of smlnj/foo/bar. In
197 :     particular, when you fire up sml with a command-line argument, say,
198 :     e.g.:
199 :    
200 :     sml '$smlnj/cmb.cm'
201 :    
202 :     At the ML toplevel prompt:
203 :    
204 :     CM.autoload "$smlnj/cmb.cm";
205 :    
206 :     There is also a new controller in CM.Control that can be used to turn
207 :     off all remaining support for implicit anchors by saying:
208 :    
209 :     CM.autoload "$smlnj/
210 :     #set CM.Control.implicit_anchors false;
211 :    
212 :     This causes CM to reject implicitly anchored paths. This is (for the
213 :     time being) less permissive than the "final" version where there will
214 :     be no more such implicit anchors and relative paths will be just that:
215 :     relative.
216 :    
217 :     The next step (version after next version?) will be to make the
218 :     default for CM.Control.implicit_anchors false. After the dust has
219 :     settled, I can then produce the "final" version of this...
220 :    
221 :     Note: Since bootstrapping is a bit tricky, I provided new boot files.
222 :    
223 :     ----------------------------------------------------------------------
224 :     Name: Matthias Blume
225 : blume 642 Date: 2000/05/11 16:30:00 JST
226 :     Tag: blume-20000511-sources
227 :     Description:
228 :    
229 :     The main change is that I added function CM.sources as a generalized
230 :     version of the earlier CM.makedepend. This entails the following
231 :     additional changes:
232 :    
233 :     - CM.makedepend has been dropped.
234 :    
235 :     - CM manual has been updated.
236 :    
237 :     - TOOLS signature and API have been changed.
238 :    
239 :     ----------------------------------------------------------------------
240 : leunga 640 Name: Allen Leung
241 : leunga 641 Date: 2000/05/10 21:17 EDT
242 :     Tag: leunga-20000510-moby-c--ssa
243 :     Description:
244 :    
245 :     Various bug fixes and new features for C--, Moby and MLRISC optimizations.
246 :     None of these affect SML/NJ.
247 :    
248 :     1. Register Allocation
249 :    
250 :     a. A new ra spilling module (ra/ra-spill-with-renaming) is implemented.
251 :     This module tries to remove local (i.e. basic block level) redundancies
252 :     during spilling.
253 :    
254 :     b. A new framework for performing region based register allocation.
255 :     Not yet entirely functional.
256 :    
257 :     2. X86
258 :    
259 :     a. DefUse for POP was missing the stack pointer [found by Lal]
260 :     b. Reload for CALL was incorrect in X86Spill [found by John]
261 :     c. Various fixes in X86Spill so that it can be used correctly for
262 :     the new spilling module.
263 :    
264 :     3. SSA/IR
265 :    
266 :     a. New module ir/dj-dataflow.sml implements elimination based
267 :     data flow analysis.
268 :    
269 :     4. MLRiscGen
270 :    
271 :     a. Fix for gc type annotation
272 :    
273 :     5. MDGen
274 :    
275 :     Various fixes for machine description -> ml code translation. For ssa
276 :     only.
277 :    
278 :     ----------------------------------------------------------------------
279 :     Name: Allen Leung
280 : leunga 640 Date: 2000/05/08 22:17 EDT
281 :     Tag: leunga-20000508-labexp
282 :     Description:
283 :    
284 :     Fermin has found a few assembly problems with constant expressions
285 :     generated in LabelExp. Mostly, the problems involve extra parentheses,
286 :     which choke on dumb assemblers. This is his fix.
287 :    
288 :     ----------------------------------------------------------------------
289 : dbm 635 Name: Dave MacQueen
290 :     Date: 2000/04/09 14:00 EDT
291 :     Tag: dbm-20000502-Version_110_28
292 :     Description:
293 :    
294 :     1. Updated src/compiler/TopLevel/main/version.sml to version 110.28
295 :    
296 :     2. Updated config/version to 110.28
297 :    
298 :     3. Updated config/srcarchiveurl
299 :    
300 :     3. New boot files!
301 :     ftp://ftp.research.bell-labs.com/dist/smlnj/working/110.28/
302 :    
303 :     ----------------------------------------------------------------------
304 : blume 634 Name: Matthias Blume
305 :     Date: 2000/05/01 19:05:00 JST
306 :     Tag: blume-20000501-noweb
307 :     Description:
308 :    
309 :     A new noweb tool has been added. The existing system is entirely
310 :     unaffected by this, but some CM users have asked for renewed noweb
311 :     support. Everything is documented in the CM manual.
312 :    
313 :     New (plugin) libraries:
314 :    
315 :     noweb-tool.cm
316 :     nw-ext.cm
317 :    
318 :     ----------------------------------------------------------------------
319 : dbm 633 Name: Dave MacQueen
320 :     Date: 2000/04/30 12:40PM EDT
321 :     Tag: dbm-20000430-bug_fixes
322 :     Description:
323 :    
324 :     1. Fix for bug 1498
325 :     smlnj/src/system/Basis/Implementation/Unsafe/object.sig
326 :     smlnj/src/system/Basis/Implementation/Unsafe/object.sml
327 :     added toRealArray function
328 :     smlnj/src/compiler/MiscUtil/print/ppobj.sml
329 :     added check for tag Obj.RealArray to array printing case in ppObj
330 :    
331 :     2. Fix for bug 1510
332 :     smlnj/src/compiler/Semant/types/typesutil.sml
333 :     fixed definition of dummyargs (used by equalTycon) so that
334 :     dummy args are distinct types
335 :    
336 :     ----------------------------------------------------------------------
337 : blume 629 Name: Matthias Blume
338 : blume 632 Date: 2000/04/30 01:00:00 JST
339 :     Tag: blume-20000430-versions
340 :     Description:
341 :    
342 :     1. CM version numbering added. This is an implementation of Lal's
343 :     proposal for adding version numbers and version checking to .cm
344 :     files. Lal said that his proposal was just that -- a proposal.
345 :     For the time being I went ahead and implemented it so that people
346 :     can comment on it. Everything is completely backward-compatible
347 :     (except for the stable library format, i.e., new bootfiles!).
348 :    
349 :     As usual, see the CM manual for details.
350 :    
351 :     2. An alternative syntax for anchored paths has been implemented.
352 :     Dave has recently voiced the same concerns that I had when I did
353 :     this, so there should be some support. My take is that eventually
354 :     I will let support for the current syntax (where anchors are
355 :     "implicit") fade out in favor of the new, explicit syntax.
356 :     In order to be backward-compatible, both old and new syntax are
357 :     currently supported.
358 :    
359 :     Again, see the CM manual for details.
360 :    
361 :     3. Parallel make is trying to be slightly smarter: When the master
362 :     process finds a "bottleneck", i.e., when there is only one
363 :     compilation unit that can be compiled and everybody else is
364 :     waiting on it, then it will simply compile it directly instead
365 :     of clumsily telling one of the slaves to do it.
366 :    
367 :     4. Support for "unsharing" added. This is necessary in order to be
368 :     able to have two different versions of the same library running
369 :     at the same time (e.g., for trying out a new MLRISC while still
370 :     having the old MLRISC linked into the current compiler, etc.)
371 :     See the CM manual.
372 :    
373 :     5. Simple "makedepend" functionality added for generating Makefile
374 :     dependency information. (This is rather crude at the moment.
375 :     Expect some changes here in the future.)
376 :    
377 :     6. ".fun" added as a recognized suffix for ML files. Also documented
378 :     explicitly in the manual that the fallback behavior (unknown suffix
379 :     -> ML file) is not an official feature!
380 :    
381 :     7. Small changes to the pickler for stable libraries.
382 :    
383 :     8. Several internal changes to CM (for cleanup/improvement).
384 :    
385 :    
386 :     !!!! NEW BINFILES !!!!
387 :    
388 :     ----------------------------------------------------------------------
389 :     Name: Matthias Blume
390 : blume 631 Date: 2000/04/28 17:30:00 JST
391 :     Tag: blume-20000428-pathconfig
392 :     Description:
393 :    
394 :     1. I changed config/install.sh to remove duplicate entries from the
395 :     lib/pathconfig file at the end. Moreover, the final version of
396 :     lib/pathconfig is sorted alphabetically. The same (sorting) is done
397 :     in src/system/installml.
398 :    
399 :     2. The config/install.sh script now consistently uses relative
400 :     pathnames in lib/pathconfig whenever the anchor is in the lib
401 :     directory. (So far this was true for the libraries that come
402 :     pre-compiled and bundled as part of the bootfiles but not for
403 :     libraries that are compiled by the script itself.)
404 :    
405 :     ----------------------------------------------------------------------
406 :     Name: Matthias Blume
407 : blume 629 Date: 2000/04/26 13:10:00 JST
408 :     Tag: blume-20000426-fun_suffix
409 :     Description:
410 :    
411 :     Added ".fun" as a recognized file name suffix (for ML code).
412 :    
413 :     ----------------------------------------------------------------------
414 : leunga 628 Name: Allen Leung
415 :     Date: 2000/04/25 17:00:00 EST
416 :     Tag: leunga-20000425-alpha-ra
417 :     Description:
418 :    
419 :     1. Alpha
420 :    
421 :     PSEUDOARITH was missing in AlphaRewrite. This causes an endless loop
422 :     in C--.
423 :    
424 :     2. RA
425 :    
426 :     Added a flag "ra-dump-size" to print out the size of the flowgraph
427 :     and the interference graph.
428 :    
429 :     ----------------------------------------------------------------------
430 : dbm 627 Name: Dave MacQueen
431 :     Date: 2000/04/25/
432 :     Tag: dbm-20000425-mlyacc_doc_examples
433 :     Description:
434 :     Updated mlyacc.tex sections 5 and 7 for SML '97 and CM.
435 :     Updated all three examples in src/ml-yacc/examples to run
436 :     under 110.* using CM.make.
437 :    
438 :     ----------------------------------------------------------------------
439 : leunga 624 Name: Allen Leung
440 :     Date: 2000/04/20 23:04:00 EST
441 :     Tag: leunga-20000420-ssa-c---stuff
442 :     Description:
443 :    
444 :     This update synchronizes my repository with Yale's. Most of these
445 :     changes, however, do not affect SML/NJ at all (the RA is an exception).
446 :    
447 :     1. Register Allocator
448 :    
449 :     a. An improvement in the interference graph construction:
450 :     Given a copy
451 :    
452 :     s <- t
453 :    
454 : leunga 628 no interference edge between s and t is added for this definition of s.
455 : leunga 624
456 :     b. I've added two new spill heuristic modules that Fermin and I developed
457 :     (in the new library RA.cm). These are unused in SML/NJ but maybe
458 :     useful for others (Moby?)
459 :    
460 :     2. X86
461 :    
462 :     a. Various fixes in the backend provided by Fermin [C--] and Lal.
463 :    
464 :     3. Alpha
465 :    
466 :     a. Added the BSR instruction and code generation that goes with it [C--]
467 :     b. Other fixes too numerous to recount provided by Fermin [C--]
468 :    
469 :     4. Regmaps
470 :    
471 :     a. The regmaps are not initialized with the identity physical bindings
472 :     at creation time. This is unneeded.
473 :    
474 :     5. MLRISC Optimizations
475 :    
476 :     a. The DJ-Graph module can now compute the iterated dominance frontiers
477 :     intersects with liveness incrementally in linear time! Woohoo!
478 :     This is now used in my new SSA construction algorithm.
479 :    
480 :     b. THe branch reorganization module is now smarter about linear chains of
481 :     basic blocks.
482 :    
483 :    
484 :     ----------------------------------------------------------------------
485 : blume 615 Name: Matthias Blume
486 :     Date: 2000/04/12 13:52:00 JST
487 :     Tag: blume_main_v110p27_1
488 :     Description:
489 :    
490 :     Changed install.sh script to handle archive files without version number
491 :     and to use "boot.<arch>-<os>" instead of "sml.boot.<arch>-<os>" for the
492 :     name of the boot file archive.
493 :    
494 :     ----------------------------------------------------------------------
495 : dbm 607 Name: Dave MacQueen
496 :     Date: 2000/04/09 14:00 EDT
497 :     Tag: dbm-20000410-Version_110_27
498 :     Description:
499 :    
500 :     1. Updated src/compiler/TopLevel/main/version.sml to version 110.27
501 :    
502 :     2. Updated src/config/version to 110.27
503 :    
504 :     3. New boot files!
505 :    
506 :     ----------------------------------------------------------------------
507 : leunga 606 Name: Allen Leung
508 :     Date: 2000/04/09 19:09:00 EST
509 :     Tag: leunga-20000409-misc
510 :     Description:
511 :    
512 :     1. Yet another fix for x86 assembly for idivl, imull, mull and friends.
513 :    
514 :     2. Miscellaneous improvements to MLRISC (unused in sml/nj)
515 :    
516 :     ----------------------------------------------------------------------
517 : monnier 605 Name: Stefan
518 :     Date: 2000/04/07 10:00:00 EDT
519 :     Tag: monnier-20000406-branch-handling
520 :     Description:
521 :    
522 :     Improved handling of branches (mostly those generated from
523 :     polymorphic equality), removed switchoff and changed the
524 :     default optimization settings (more cpsopt and less flintopt).
525 :    
526 :     ----------------------------------------------------------------------
527 : leunga 601 Name: Allen Leung
528 : leunga 602 Date: 2000/04/06 01:30:00 EST
529 :     Tag: leunga-20000406-peephole-x86-SSA-2
530 :     Description:
531 :    
532 :     Forgot a few files.
533 :    
534 :     ----------------------------------------------------------------------
535 :     Name: Allen Leung
536 : leunga 601 Date: 2000/04/06 00:36:00 EST
537 :     Tag: leunga-20000406-peephole-x86-SSA
538 :     Description:
539 :    
540 :     1. New Peephole code
541 :    
542 :     2. Minor improvement to X86 instruction selection
543 :    
544 :     3. Various fixes to SSA and machine description -> code translator
545 :    
546 :     ----------------------------------------------------------------------
547 : blume 595 Name: Matthias Blume
548 :     Date: 2000/04/05 12:30:00 JST
549 :     Tag: blume_main_v110p26p2_3
550 :     Description:
551 :    
552 :     This update just merges three minor cosmetic updates to CM's sources
553 :     to get ready for the 110.27 code freeze on Friday. No functionality
554 :     has changed.
555 :    
556 :     ----------------------------------------------------------------------
557 : leunga 593 Name: Allen Leung
558 : leunga 594 Date: 2000/04/04 19:39:00 EST
559 :     Tag: leunga-20000404-x86-asm
560 :     Description:
561 :    
562 :     1. Fixed a problem in X86 assembly.
563 :    
564 :     Things like
565 :    
566 :     jmp %eax
567 :     jmp (%eax)
568 :    
569 :     should be output as
570 :    
571 :     jmp *%eax
572 :     jmp *(%eax)
573 :    
574 :     2. Assembly output
575 :    
576 :     Added a new flag
577 :    
578 :     "asm-indent-copies" (default to false)
579 :    
580 :     When this flag is on, parallel copies will be indented an extra level.
581 :    
582 :     ----------------------------------------------------------------------
583 :     Name: Allen Leung
584 : leunga 593 Date: 2000/04/04 03:18:00 EST
585 :     Tag: leunga-20000404-C--Moby
586 :     Description:
587 :    
588 :     All of these fixes are related to C--, Moby, and my own optimization
589 :     stuff; so they shouldn't affect SML/NJ.
590 :    
591 :     1. X86
592 :    
593 :     Various fixes related floating point, and extensions.
594 :    
595 :     2. Alpha
596 :    
597 :     Some extra patterns related to loads with signed/zero extension
598 :     provided by Fermin.
599 :    
600 :     3. Assembly
601 :    
602 :     When generating assemby, resolve the value of client defined constants,
603 :     instead of generating symbolic values. This is controlled by the
604 :     new flag "asm-resolve-constants", which is default to true.
605 :    
606 :     4. Machine Descriptions
607 :    
608 :     a. The precedence parser was slightly broken when parsing infixr symbols.
609 :     b. The type generalizing code had the bound variables reversed, resulting
610 :     in a problem during arity raising.
611 :     c. Various fixes in machine descriptions.
612 :    
613 :     ----------------------------------------------------------------------
614 : blume 592 Name: Matthias Blume
615 :     Date: 2000/04/03 16:05:00 JST
616 :     Tag: blume_main_v110p26p2_2
617 :     Description:
618 :    
619 :     I eliminated coreEnv from compInfo. Access to the "Core" structure is
620 :     now done via the ordinary static environment that is context to each
621 :     compilation unit.
622 :    
623 :     To this end, I arranged that instead of "structure Core" as "structure
624 :     _Core" is bound in the pervasive environment. Core access is done via
625 :     _Core (which can never be accidentially rebound because _Core is not a
626 :     legal surface-syntax symbol).
627 :    
628 :     The current solution is much cleaner because the core environment is
629 :     now simply part of the pervasive environment which is part of every
630 :     compilation unit's context anyway. In particular, this eliminates all
631 :     special-case handling that was necessary until now in order to deal
632 :     with dynamic and symbolic parts of the core environment.
633 :    
634 :     Remaining hackery (to bind the "magic" symbol _Core) is localized in the
635 :     compilation mananger's bootstrap compiler (actually: in the "init group"
636 :     handling). See the comments in src/system/smlnj/init/init.cmi for
637 :     more details.
638 :    
639 :     I also tried to track down all mentions of "Core" (as string argument
640 :     to Symbol.strSymbol) in the compiler and replaced them with a
641 :     reference to the new CoreSym.coreSym. Seems cleaner since the actual
642 :     name appears in one place only.
643 :    
644 :     Binfile and bootfile format have not changed, but the switchover from
645 :     the old "init.cmi" to the new one is a bit tricky, so I supplied new
646 :     bootfiles anyway.
647 :    
648 :     ----------------------------------------------------------------------
649 : leunga 591 Name: Allen Leung
650 :     Date: 2000/04/02 21:17:00 EST
651 :     Tag: leunga-20000402-mltree
652 :     Description:
653 : leunga 585
654 : leunga 591 1. Renamed the constructor CALL in MLTREE by popular demand.
655 :     2. Added a bunch of files from my repository. These are currently
656 :     used by other non-SMLNJ backends.
657 :    
658 : leunga 576 ----------------------------------------------------------------------
659 : leunga 590 Name: Allen Leung
660 :     Date: 2000/03/31 21:15:00 EST
661 :     Tag: leunga-20000331-aliasing
662 :     Description:
663 :    
664 :     This update contains a rewritten (and hopefully more correct) module
665 :     for extracting aliasing information from CPS.
666 :    
667 :     To turn on this feature:
668 :    
669 :     Compiler.Control.CG.memDisambiguate := true
670 :    
671 :     To pretty print the region information with assembly
672 :    
673 :     Compiler.Control.MLRISC.getFlag "asm-show-region" := true;
674 :    
675 :     To control how many levels of aliasing information are printed, use:
676 :    
677 :     Compiler.Control.MLRISC.getInt "points-to-show-level" := n
678 :    
679 :     The default of n is 3.
680 :    
681 :     ----------------------------------------------------------------------
682 : dbm 589 Name: David MacQueen
683 :     Date: 2000/03/31 11:15:00 EST
684 :     Tag: dbm-20000331-runtime_fix
685 :     Description:
686 :    
687 :     This update contains:
688 :    
689 :     1. runtime/c-lib/c-libraries.c
690 :     includes added in revision 1.2 caused compilation errors on hppa-hpux
691 :    
692 :     2. fix for bug 1556
693 :     system/Basis/Implementation/NJ/internal-signals.sml
694 :    
695 :     ----------------------------------------------------------------------
696 : blume 587 Name: Matthias Blume
697 : blume 588 Date: 2000/03/31 18:00:00 JST
698 :     Tag: blume_main_v110p26p2_1
699 :     Description:
700 :    
701 :     This update contains:
702 :    
703 :     1. A small change to CM's handling of stable libraries:
704 :     CM now maintains one "global" modmap that is used for all stable
705 :     libraries. The use of such a global modmap maximizes sharing and
706 :     minimizes the need for re-traversing parts of environments during
707 :     modmap construction. (However, this has minor impact since modmap
708 :     construction seems to account for just one percent or less of total
709 :     compile time.)
710 :    
711 :     2. I added a "genmap" phase to the statistics. This is where I got the
712 :     "one percent" number (see above).
713 :    
714 :     3. CM's new tool parameter mechanism just became _even_ better. :)
715 :     - The parser understands named parameters and recursive options.
716 :     - The "make" and "shell" tools use these new features.
717 :     (This makes it a lot easier to cascade these tools.)
718 :     - There is a small syntax change: named parameters use a
719 :    
720 :     <name> : ( <option> ... ) or
721 :     <name> : <string>
722 :    
723 :     syntax. Previously, named parameters were implemented in an
724 :     ad-hoc fashion by each tool individually (by parsing strings)
725 :     and had the form
726 :    
727 :     <name>=<string>
728 :    
729 :     See the CM manual for a full description of these issues.
730 :    
731 :     ----------------------------------------------------------------------
732 :     Name: Matthias Blume
733 : blume 587 Date: 2000/03/30 18:00:00 JST
734 :     Tag: blume_main_v110p26p2_0
735 :     Description:
736 :    
737 :     !!!!! WARNING !!!!!!
738 :     !! New binfiles !!
739 :     !!!!!!!!!!!!!!!!!!!!
740 :    
741 :     This update contains:
742 :    
743 :     1. Moderate changes to CM:
744 :    
745 :     - Changes to CM's tools mechanism. In particular, it is now possible
746 :     to have tools that accept additional "command line" parameters
747 :     (specified in the .cm file at each instance where the tool's class is
748 :     used).
749 :    
750 :     This was done to accomodate the new "make" and "shell" tools which
751 :     facilitate fairly seemless hookup to portions of code managed using
752 :     Makefiles or Shell scripts.
753 :    
754 :     There are no classes "shared" or "private" anymore. Instead, the
755 :     sharing annotation is now a parameter to the "sml" class.
756 :    
757 :     There is a bit of generic machinery for implementing one's own
758 :     tools that accept command-line parameters. However, I am not yet fully
759 :     satisfied with that part, so expect changes here in the future.
760 :    
761 :     All existing tools are described in the CM manual.
762 :    
763 :     - Slightly better error handling. (CM now surpresses many followup
764 :     error messages that tended to be more annoying than helpful.)
765 :    
766 :     2. Major changes to the compiler's static environment data structures.
767 :    
768 :     - no CMStaticEnv anymore.
769 :     - no CMEnv, no "BareEnvironment" (actually, _only_ BareEnvironment,
770 :     but it is called Environment), no conversions between different
771 :     kinds of static environments
772 :    
773 :     - There is still a notion of a "modmap", but such modmaps are generated
774 :     on demand at the time when they are needed. This sounds slow, but I
775 :     sped up the code that generates modmaps enough for this not to lead to
776 :     a slowdown of the compiler (at least I didn't detect any).
777 :    
778 :     - To facilitate rapid modmap generation, static environments now
779 :     contain an (optional) "modtree" structure. Modtree annotations are
780 :     constructed by the unpickler during unpickling. (This means that
781 :     the elaborator does not have to worry about modtrees at all.)
782 :     Modtrees have the advantage that they are compositional in the same
783 :     way as the environment data structure itself is compositional.
784 :     As a result, modtrees never hang on to parts of an environment that
785 :     has already been rendered "stale" by filtering or rebinding.
786 :    
787 :     - I went through many, many trials and errors before arriving at the
788 :     current solution. (The initial idea of "linkpaths" did not work.)
789 :     But the result of all this is that I have touched a lot of files that
790 :     depend on the "modules" and "types" data structures (most of the
791 :     elaborator). There were a lot of changes during my "linkpath" trials
792 :     that could have been reverted to their original state but weren't.
793 :     Please, don't be too harsh on me for messing with this code a bit more
794 :     than what was strictly necessary... (I _did_ resist the tempation
795 :     of doing any "global reformatting" to avoid an untimely death at
796 :     Dave's hands. :)
797 :    
798 :     - One positive aspect of the previous point: At least I made sure that
799 :     all files that I touched now compile without warnings (other than
800 :     "polyEqual").
801 :    
802 :     - compiler now tends to run "leaner" (i.e., ties up less memory in
803 :     redundant modmaps)
804 :    
805 :     ----------------------------------------------------------------------
806 : leunga 580 Name: Allen Leung
807 : leunga 585 Date: 2000/03/29 18:00:00
808 :     Tag: leunga-20000327-mlriscGen_hppa_alpha_x86
809 : leunga 586 Boot files (optional): ftp://react-ilp.cs.nyu.edu/leunga/110.26.1-sml.boot.x86-unix-20000330.tar.gz
810 : leunga 585 Description:
811 :    
812 :     This update contains *MAJOR* changes to the way code is generated from CPS
813 :     in the module mlriscGen, and in various backend modules.
814 :    
815 :     CHANGES
816 :     =======
817 :    
818 :     1. MLRiscGen: forward propagation fix.
819 :    
820 :     There was a bug in forward propagation introduced at about the same time
821 :     as the MLRISC x86 backend, which prohibits coalescing to be
822 :     performed effectively in loops.
823 :    
824 :     Effect: speed up of loops in RISC architectures.
825 :     By itself, this actually slowed down certain benchmarks on the x86.
826 :    
827 :     2. MLRiscGen: forward propagating addresses from consing.
828 :    
829 :     I've changed the way consing code is generated. Basically I separated
830 :     out the initialization part:
831 :    
832 :     store tag, offset(allocptr)
833 :     store elem1, offset+4(allocptr)
834 :     store elem2, offset+8(allocptr)
835 :     ...
836 :     store elemn, offset+4n(allocptr)
837 :    
838 :     and the address computation part:
839 :    
840 :     celladdr <- offset+4+alloctpr
841 :    
842 :     and move the address computation part
843 :    
844 :     Effect: register pressure is generally lower as a result. This
845 :     makes compilation of certain expressions much faster, such as
846 :     long lists with non-trivial elements.
847 :    
848 :     [(0,0), (0,0), .... (0,0)]
849 :    
850 :     3. MLRiscGen: base pointer elimination.
851 :    
852 :     As part of the linkage mechanism, we generate the sequence:
853 :    
854 :     L: ... <- start of the code fragment
855 :    
856 :     L1:
857 :     base pointer <- linkreg - L1 + L
858 :    
859 :     The base pointer was then used for computing relocatable addresses
860 :     in the code fragment. Frequently (such as in lots of continuations)
861 :     this is not needed. We now eliminate this sequence whenever possible.
862 :    
863 :     For compile time efficiency, I'm using a very stupid local heuristic.
864 :     But in general, this should be done as a control flow analysis.
865 :    
866 :     Effect: Smaller code size. Speed up of most programs.
867 :    
868 :     4. Hppa back end
869 :    
870 :     Long jumps in span dependence resolution used to depend on the existence
871 :     of the base pointer.
872 :    
873 :     A jump to a long label L was expanded into the following sequence:
874 :    
875 :     LDIL %hi(L-8192), %r29
876 :     LDO %lo(L-8192)(%r29), %r29
877 :     ADD %r29, baseptr, %r29
878 :     BV,n %r0(%r29)
879 :    
880 :     In the presence of change (3) above, this will not work. I've changed
881 :     it so that the following sequence of instructions are generated, which
882 :     doesn't mention the base pointer at all:
883 :    
884 :     BL,n L', %r29 /* branch and link, L' + 4 -> %r29 */
885 :     L': ADDIL L-(L'+4), %r29 /* Compute address of L */
886 :     BV,n %r0(%r29) /* Jump */
887 :    
888 :     5. Alpha back end
889 :    
890 :     New alpha instructions LDB/LDW have been added, as per Fermin's
891 :     suggestions. This is unrelated to all other changes.
892 :    
893 :     6. X86 back end
894 :    
895 :     I've changed andl to testl in the floating point test sequence
896 :     whenever appropriate. The Intel optimization guide states that
897 :     testl is perferable to andl.
898 :    
899 :     7. RA (x86 only)
900 :    
901 :     I've improved the spill propagation algorithm, using an approximation
902 :     of maximal weighted independent sets. This seems to be necessary to
903 :     alleviate the negative effect in light of the slow down in (1).
904 :    
905 :     I'll write down the algorithm one of these days.
906 :    
907 :     8. MLRiscGen: frequencies
908 :    
909 :     I've added an annotation that states that all call gc blocks have zero
910 :     execution frequencies. This improves register allocation on the x86.
911 :    
912 :     BENCHMARKS
913 :     ==========
914 :    
915 :     I've only perform the comparison on 110.25.
916 :    
917 :     The platforms are:
918 :    
919 :     HPPA A four processor HP machine (E9000) with 5G of memory.
920 :     X86 A 300Hhz Pentium II with 128M of memory, and
921 :     SPARC An Ultra sparc 2 with 512M of memory.
922 :    
923 :     I used the following parameters for the SML benchmarks:
924 :    
925 :     @SMLalloc
926 :     HPPA 256k
927 :     SPARC 512k
928 :     X86 256k
929 :    
930 :     COMPILATION TIME
931 :     ----------------
932 :     Here are the numbers comparing the compilation times of the compilers.
933 :     I've only compared 110.25 compiling the new sources versus
934 :     a fixpoint version of the new compiler compiling the same.
935 :    
936 :     110.25 New
937 :     Total Time in RA Spill+Reload Total Time In RA Spill+Reload
938 :     HPPA 627s 116s 2684+3584 599s 95s 1003+1879
939 :     SPARC 892s 173s 2891+3870 708s 116s 1004+1880
940 :     X86 999s 315s 94006+130691 987s 296s 108877+141957
941 :    
942 :     110.25 New
943 :     Code Size Code Size
944 :     HPPA 8596736 8561421
945 :     SPARC 8974299 8785143
946 :     X86 9029180 8716783
947 :    
948 :     So in summary, things are at least as good as before. Dramatic
949 :     reduction in compilation is obtained on the Sparc; I can't explain it,
950 :     but it is reproducible. Perhaps someone should try to reproduce this
951 :     on their own machines.
952 :    
953 :     SML BENCHMARKS
954 :     --------------
955 :    
956 :     On the average, all benchmarks perform at least as well as before.
957 :    
958 :     HPPA Compilation Time Spill+Reload Run Time
959 :     110.25 New 110.25 New 110.25 New
960 :    
961 :     barnesHut 3.158 3.015 4.75% 1+1 0+0 2.980 2.922 2.00%
962 :     boyer 6.152 5.708 7.77% 0+0 0+0 0.218 0.213 2.34%
963 :     count-graphs 1.168 1.120 4.32% 0+0 0+0 22.705 23.073 -1.60%
964 :     fft 0.877 0.792 10.74% 1+3 1+3 0.602 0.587 2.56%
965 :     knuthBendix 3.180 2.857 11.32% 0+0 0+0 0.675 0.662 2.02%
966 :     lexgen 6.190 5.290 17.01% 0+0 0+0 0.913 0.788 15.86%
967 :     life 0.803 0.703 14.22% 25+25 0+0 0.153 0.140 9.52%
968 :     logic 2.048 2.007 2.08% 6+6 1+1 4.133 4.008 3.12%
969 :     mandelbrot 0.077 0.080 -4.17% 0+0 0+0 0.765 0.712 7.49%
970 :     mlyacc 22.932 20.937 9.53% 154+181 32+57 0.468 0.430 8.91%
971 :     nucleic 5.183 5.060 2.44% 2+2 0+0 0.125 0.120 4.17%
972 :     ratio-regions 3.357 3.142 6.84% 0+0 0+0 116.225 113.173 2.70%
973 :     ray 1.283 1.290 -0.52% 0+0 0+0 2.887 2.855 1.11%
974 :     simple 6.307 6.032 4.56% 28+30 5+7 3.705 3.658 1.28%
975 :     tsp 0.888 0.862 3.09% 0+0 0+0 7.040 6.893 2.13%
976 :     vliw 24.378 23.455 3.94% 106+127 25+45 2.758 2.707 1.91%
977 :     --------------------------------------------------------------------------
978 :     Average 6.12% 4.09%
979 :    
980 :     SPARC Compilation Time Spill+Reload Run Time
981 :     110.25 New 110.25 New 110.25 New
982 :    
983 :     barnesHut 3.778 3.592 5.20% 2+2 0+0 3.648 3.453 5.65%
984 :     boyer 6.632 6.110 8.54% 0+0 0+0 0.258 0.242 6.90%
985 :     count-graphs 1.435 1.325 8.30% 0+0 0+0 33.672 34.737 -3.07%
986 :     fft 0.980 0.940 4.26% 3+9 2+6 0.838 0.827 1.41%
987 :     knuthBendix 3.590 3.138 14.39% 0+0 0+0 0.962 0.967 -0.52%
988 :     lexgen 6.593 6.072 8.59% 1+1 0+0 1.077 1.078 -0.15%
989 :     life 0.972 0.868 11.90% 26+26 0+0 0.143 0.140 2.38%
990 :     logic 2.525 2.387 5.80% 7+7 1+1 5.625 5.158 9.05%
991 :     mandelbrot 0.090 0.093 -3.57% 0+0 0+0 0.855 0.728 17.39%
992 :     mlyacc 26.732 23.827 12.19% 162+189 32+57 0.550 0.560 -1.79%
993 :     nucleic 6.233 6.197 0.59% 3+3 0+0 0.163 0.173 -5.77%
994 :     ratio-regions 3.780 3.507 7.79% 0+0 0+0 133.993 131.035 2.26%
995 :     ray 1.595 1.550 2.90% 1+1 0+0 3.440 3.418 0.63%
996 :     simple 6.972 6.487 7.48% 29+32 5+7 3.523 3.525 -0.05%
997 :     tsp 1.115 1.063 4.86% 0+0 0+0 7.393 7.265 1.77%
998 :     vliw 27.765 24.818 11.87% 110+135 25+45 2.265 2.135 6.09%
999 :     ----------------------------------------------------------------------------
1000 :     Average 6.94% 2.64%
1001 :    
1002 :     X86 Compilation Time Spill+Reload Run Time
1003 :     110.25 New 110.25 New 110.25 New
1004 :    
1005 :     barnesHut 5.530 5.420 2.03% 593+893 597+915 3.532 3.440 2.66%
1006 :     boyer 8.768 7.747 13.19% 493+199 301+289 0.327 0.297 10.11%
1007 :     count-graphs 2.040 2.010 1.49% 298+394 315+457 26.578 28.660 -7.26%
1008 :     fft 1.327 1.302 1.92% 112+209 115+210 1.055 0.962 9.71%
1009 :     knuthBendix 5.218 5.475 -4.69% 451+598 510+650 0.928 0.932 -0.36%
1010 :     lexgen 9.970 9.623 3.60% 1014+841 1157+885 0.947 0.928 1.97%
1011 :     life 1.183 1.183 0.00% 162+182 145+148 0.127 0.103 22.58%
1012 :     logic 3.285 3.512 -6.45% 514+684 591+836 5.682 5.577 1.88%
1013 :     mandelbrot 0.147 0.143 2.33% 38+41 33+54 0.703 0.690 1.93%
1014 :     mlyacc 35.457 32.763 8.22% 3496+4564 3611+4860 0.552 0.550 0.30%
1015 :     nucleic 7.100 6.888 3.07% 239+168 201+158 0.175 0.173 0.96%
1016 :     ratio-regions 6.388 6.843 -6.65% 1182+257 981+300 120.142 120.345 -0.17%
1017 :     ray 2.332 2.338 -0.29% 346+398 402+494 3.593 3.540 1.51%
1018 :     simple 9.912 9.903 0.08% 1475+941 1579+1168 3.057 3.178 -3.83%
1019 :     tsp 1.623 1.532 5.98% 266+200 250+211 8.045 7.878 2.12%
1020 :     vliw 33.947 35.470 -4.29% 2629+2774 2877+3171 2.072 1.890 9.61%
1021 :     ----------------------------------------------------------------------------
1022 :     Average 1.22% 3.36%
1023 :    
1024 :     ----------------------------------------------------------------------
1025 :     Name: Allen Leung
1026 : leunga 583 Date: 2000/03/23 16:25:00
1027 :     Tag: leunga-20000323-fix_x86_alpha
1028 :     Description:
1029 :    
1030 :     1. X86 fixes/changes
1031 :    
1032 :     a. The old code generated for SETcc was completely wrong.
1033 :     The Intel optimization guide is VERY misleading.
1034 :    
1035 :     2. ALPHA fixes/changes
1036 :    
1037 :     a. Added the instructions LDBU, LDWU, STB, STW as per Fermin's suggestion.
1038 :     b. Added a new mode byteWordLoadStores to the functor parameter to Alpha()
1039 :     c. Added reassociation code for address computation.
1040 :    
1041 :     ----------------------------------------------------------------------
1042 :     Name: Allen Leung
1043 : leunga 580 Date: 2000/03/22 01:23:00
1044 :     Tag: leunga-20000322-fix_x86_hppa_ra
1045 :     Description:
1046 :    
1047 :     1. X86 fixes/changes
1048 :    
1049 :     a. x86Rewrite bug with MUL3 (found by Lal)
1050 :     b. Added the instructions FSTS, FSTL
1051 :    
1052 :     2. PA-RISC fixes/changes
1053 :    
1054 :     a. B label should not be a delay slot candidate! Why did this work?
1055 :     b. ADDT(32, REG(32, r), LI n) now generates one instruction instead of two,
1056 :     as it should be.
1057 :     c. The assembly syntax for fstds and fstdd was wrong.
1058 :     d. Added the composite instruction COMICLR/LDO, which is the immediate
1059 :     operand variant of COMCLR/LDO.
1060 :    
1061 :     3. Generic MLRISC
1062 :    
1063 :     a. shuffle.sml rewritten to be slightly more efficient
1064 :     b. DIV bug in mltree-simplify fixed (found by Fermin)
1065 :    
1066 :     4. Register Allocator
1067 :    
1068 :     a. I now release the interference graph earlier during spilling.
1069 :     May improve memory usage.
1070 :    
1071 :     ----------------------------------------------------------------------
1072 : blume 577 Name: Matthias Blume
1073 : blume 578 Date: 2000/03/14 14:15:32
1074 :     Tag: blume_main_v110p26p1_2
1075 :     Description:
1076 :    
1077 :     1. Tools.registerStdShellCmdTool (from smlnj/cm/tool.cm) takes an
1078 :     additional argument called "template" which is an optional string that
1079 :     specifiel the layout of the tool command line. See the CM manual for
1080 :     explanation.
1081 :    
1082 :     2. A special-purpose tool can be "regisitered" by simply dropping the
1083 :     corresponding <...>-tool.cm (and/or <...>-ext.cm) into the same
1084 :     directory where the .cm file lives that uses this tool. (The
1085 :     behavior/misfeature until now was to look for the tool description
1086 :     files in the current working directory.) As before, tool description
1087 :     files could also be anchored -- in which case they can live anywhere
1088 :     they like. Following the recent e-mail discussion, this change should
1089 :     make it easier to have special-purpose tools that are shipped together
1090 :     with the sources of the program that uses them.
1091 :    
1092 :     ----------------------------------------------------------------------
1093 :     Name: Matthias Blume
1094 : blume 577 Date: 2000/03/10 07:48:34
1095 :     Tag: blume_main_v110p26p1_1
1096 :     Description:
1097 :    
1098 :     I added a re-written version of Dave's fixpt script to src/system.
1099 :     Changes relative to the original version:
1100 :     - sh-ified (not everybody has ksh)
1101 :     - automatically figures out which architecture it runs on
1102 :     - uses ./makeml a bit more cleverly
1103 :     - never invokes ./installml (and, thus, does not clobber your
1104 :     good and working installation of sml in case something goes wrong)
1105 :     - accepts max iteration count using option "-iter <n>"
1106 :     - accepts a "base" name using option "-base <base>"
1107 :    
1108 :     It does not build any extraneous heap images but directly rebuilds
1109 :     bin- and boot-hierarchies using makeml's "-rebuild" switch. Finally,
1110 :     it can incorporate existing bin- and boot- hierarchies. For example,
1111 :     suppose the base is set to "sml" (which is the default). Then it
1112 :     successively builds
1113 :    
1114 :     sml.bin.<arch>-unix and sml.boot.<arch>-unix
1115 :     then sml1.bin.<arch>-unix and sml1.boot.<arch>-unix
1116 :     then sml2.bin.<arch>-unix and sml2.boot.<arch>-unix
1117 :     ...
1118 :     then sml<n>.bin.<arch>-unix and sml<n>.boot.<arch>-unix
1119 :    
1120 :     and so on. If any of these already exist, it will just use what's
1121 :     there. In particular, many people will have the initial set of bin
1122 :     and boot files around, so this saves time for at least one full
1123 :     rebuild. Having sets of the form <base><k>.{bin,boot}.<arch>-unix for
1124 :     <k>=1,2,... is normally not a good idea when invoking fixpt. However,
1125 :     they might be the result of an earlier partial run of fixpt (which
1126 :     perhaps got accidentially killed). In this case, fixpt will quickly
1127 :     move through what exists before continuing where it left off earlier,
1128 :     and, thus, saves a lot of time.
1129 :    
1130 :     ----------------------------------------------------------------------
1131 : leunga 576 Name: Allen Leung
1132 :     Date: 00/03/10 02:20:00
1133 :     Tag: leunga-20000310-fix_x86_asm_ra
1134 :     Description:
1135 : dbm 570
1136 : leunga 576 More assembly output problems involving the indexed addressing mode
1137 :     on the x86 have been found and corrected. Thanks to Fermin Reig for the
1138 :     fix.
1139 :    
1140 :     The interface and implementation of the register allocator have been changed
1141 :     slightly to accommodate the possibility to skip the register allocation
1142 :     phases completely and go directly to memory allocation. This is needed
1143 :     for C-- use.
1144 :    
1145 : dbm 570 ----------------------------------------------------------------------
1146 : blume 572 Name: Matthias Blume
1147 : blume 575 Date: 00/03/09 10:23:53
1148 :     Tag: blume_main_v110p26p1_0
1149 :     Description:
1150 :    
1151 :     * Complete re-organization of library names. Many libraries have been
1152 :     consolidated so that they share the same path anchor. For example,
1153 :     all MLRISC-related libraries are anchored at MLRISC, most libraries that
1154 :     are SML/NJ-specific are under "smlnj". Notice that names like
1155 :     host-cmb.cm or host-compiler.cm no longer exist. See system/README
1156 :     for a complete description of the new naming scheme. Quick reference:
1157 :    
1158 :     host-cmb.cm -> smlnj/cmb.cm
1159 :     host-compiler.cm -> smlnj/compiler.cm
1160 :     full-cm.cm -> smlnj/cm.cm
1161 :     <arch>-<os>.cm -> smlnj/cmb/<arch>-<os>.cm
1162 :     <arch>-compiler.cm -> smlnj/compiler/<arch>.cm
1163 :    
1164 :     * Bug fixes in CM.
1165 :     - exceptions in user code are being passed through (i.e., reach top level)
1166 :     - more bugs in paranoia mode fixed
1167 :     - bug related to checking group owners fixed
1168 :    
1169 :     * New install.sh script that automagically fetches archive files:
1170 :     The new file config/srcarchiveurl must contain the URL of the
1171 :     (remote) directory that contains bin files (or other source archives).
1172 :     If install.sh does not find the archive locally, it tries to get
1173 :     it from that remote directory.
1174 :     This should simplify installation further: For machines that have
1175 :     access to the internet, just fetch <version>-config.tgz, unpack it,
1176 :     edit config/targets, and go (run config/install.sh). The scipt will
1177 :     fetch everything else that it might need all by itself.
1178 :    
1179 :     For CVS users, this mechanism is not relevant for source archives, but
1180 :     it is convenient for getting new sets of binfiles.
1181 :    
1182 :     Archives should be tar files compressed with either gzip, compress, or
1183 :     bzip2. The script recognizes .tgz, .tar, tar.gz, tz, .tar.Z, and .tar.bz2.
1184 :    
1185 :     ----------------------------------------------------------------------
1186 :     Name: Matthias Blume
1187 : blume 572 Date: 2000/03/07 04:01:04
1188 :     Tag: blume_main_v110_26_2
1189 : dbm 570 Description:
1190 : blume 572 - size info in BOOTLIST
1191 :     * no fixed upper limits for number of bootfiles or length of
1192 :     bootfile names in runtime
1193 :     * falling back to old behavior if no BOOTLIST size info found
1194 :     - allocation size heuristics in .run-sml
1195 :     * tries to read cache size from /proc/cpuinfo (this is important for
1196 :     small-cache Celeron systems!)
1197 :     - install.sh robustified
1198 :     - CM manual updates
1199 :     - paranoid mode
1200 :     * no more CMB.deliver() (i.e., all done by CMB.make())
1201 :     * can re-use existing sml.boot.* files
1202 :     * init.cmi now treated as library
1203 :     * library stamps for consistency checks
1204 :     - sml.boot.<arch>-<os>/PIDMAP file
1205 :     * This file is read by the CM startup code. This is used to minimize
1206 :     the amount of dynamic state that needs to be stowed away for the
1207 :     purpose of sharing between interactive system and user code.
1208 :     - CM.Anchor.anchor instead of CM.Anchor.{set,cancel}
1209 :     * Upon request by Elsa. Anchors now controlled by get-set-pair
1210 :     like most other CM state variables.
1211 :     - Compiler.CMSA eliminated
1212 :     * No longer supported by CM anyway.
1213 :     - fixed bugs in pickler that kept biting Stefan
1214 :     * past refs to past refs (was caused by the possibility that
1215 :     ad-hoc sharing is more discriminating than hash-cons sharing)
1216 :     * integer overflow on LargeInt.minInt
1217 :     - ml-{lex,yacc} build scripts now use new mechanism
1218 :     for building standalone programs
1219 :     - fixed several gcc -Wall warnings that were caused by missing header
1220 :     files, missing initializations, etc., in runtime (not all warnings
1221 :     eliminated, though)

root@smlnj-gforge.cs.uchicago.edu
ViewVC Help
Powered by ViewVC 1.0.0