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revision 605, Fri Apr 7 14:06:42 2000 UTC revision 673, Wed Jun 21 08:57:07 2000 UTC
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12  Tag: <post-commit CVS tag>  Tag: <post-commit CVS tag>
13  Description:  Description:
14  ----------------------------------------------------------------------  ----------------------------------------------------------------------
15    Name: Matthias Blumen
16    Date: 2000/06/21 18:00:00 JST
17    Tag: blume-20000621-manual
18    Description:
19    
20    CM manual update: Path environments documented.
21    
22    ----------------------------------------------------------------------
23    Name: Matthias Blume
24    Date: 2000/06/19 13:40:00
25    Tag: blume-20000619-manual
26    Description:
27    
28    CM manual and system/README update.  This only covers the fact that
29    there are no more implicit anchors.  (Path environments and the "bind"
30    option to "cm" have yet to be documented.)
31    
32    ----------------------------------------------------------------------
33    Name: Matthias Blume
34    Date: 2000/06/19 11:05:00 JST
35    Tag: blume-20000619-chdir-bugfix
36    Description:
37    
38    Fixed a bug in new SrcPath module that sometimes led to a bad chDir call.
39    
40    ----------------------------------------------------------------------
41    Name: Matthias Blume
42    Date: 2000/06/18 22:00:10 JST
43    Tag: blume-20000618-implicit-anchors-really-gone
44    Description:
45    
46    I updates the previous HISTORY entry where I forgot to mention that
47    implicit anchors are no longer with us.
48    
49    The current update also gets rid of the (now useless) controller
50    CM.Control.implicit_anchors.
51    
52    ----------------------------------------------------------------------
53    Name: Matthias Blume
54    Date: 2000/06/16 17:30:00 JST
55    Tag: blume-20000616-anchorenv
56    Description:
57    
58    This patch implements the long anticipated (just kidding :) "anchor
59    environment" mechanism.  In the course of doing this, I also
60    re-implemented CM's internal "SrcPath" module from scratch.  The new
61    one should be more robust in certain boundary cases.  In any case, it
62    is a lot cleaner than its predecessor (IMHO).
63    
64    This time, although there is yet another boot file format change, I
65    kept the unpickler backward-compatible.  As a result, no new bootfiles
66    are necessary and bootstrapping is straightforward.  (You cannot read
67    new bootfiles into an old system, but the other way around is no
68    problem.)
69    
70    Visible changes:
71    
72    ** 0. Implicit path anchors (without the leading $-symbol) are no
73    longer recognized at all. This means that such path names are not
74    illegal either.  For example, the name basis.cm simply refers to a
75    local file called "basis.cm" (i.e, the name is an ordinary path
76    relative to .cm-files directory).  Or, to put it differently, only
77    names that start with $ are anchored paths.
78    
79    ** 1. The $<singlearc> abbreviation for $/<singlearc> has finally
80    vanished.
81    
82    John (Reppy) had critizised this as soon as I originally proposed and
83    implemented it, but at that time I did not really deeply believe
84    him. :) Now I came full-circle because I need the $<singlearc> syntax
85    in another place where it cannot be seen as an abbreviation for
86    $/<singlearc>.  To avoid the confusion, $<singlearc> now means what it
87    seems to mean (i.e., it "expands" into the corresponding anchor
88    value).
89    
90    However, when paths are used as members in CM description files, it
91    continues to be true that there must be at least another arc after the
92    anchor.  This is now enforced separately during semantic analysis
93    (i.e., from a lexical/syntactical point of view, the notation is ok.)
94    
95    ** 2. The "cm" class now accepts an option "bind".  The option's value
96    is a sub-option list of precisely two items -- one labeled "anchor"
97    and the other one labeled "value".  As you might expect, "anchor" is
98    used to specify an anchor name to be bound, and "value" specifies what
99    the anchor is being bound to.
100    
101    The value must be a directory name and can be given in either standard
102    syntax (including the possibility that it is itself an anchored path)
103    or native syntax.
104    
105    Examples:
106    
107       foo.cm (bind:(anchor:bar value:$mystuff/bar))
108       lib.cm (bind:(anchor:a value:"H:\\x\\y\\z"))  (* only works under windows *)
109    
110    and so on.
111    
112    The meaning of this is that the .cm-file will be processed with an
113    augmented anchor environment where the given anchor(s) is/are bound to
114    the given values(s).
115    
116    The rationale for having this feature is this: Suppose you are trying
117    to use two different (already stable) libraries a.cm and b.cm (that
118    you perhaps didn't write yourself).  Further, suppose each of these
119    two libraries internally uses its own auxiliary library $aux/lib.cm.
120    Normally you would now have a problem because the anchor "lib" can not
121    be bound to more than one value globally.  Therefore, the project that
122    uses both a.cm and b.cm must locally redirect the anchor to some other
123    place:
124    
125       a.cm (bind:(anchor:lib value:/usr/lib/smlnj/a-stuff))
126       b.cm (bind:(anchor:lib value:/usr/lib/smlnj/b-stuff))
127    
128    This hard-wires $lib/aux.cm to /usr/lib/smlnj/a-stuff/aux.cm or
129    /usr/lib/smlnj/b-stuff/aux.cm, respectively.
130    
131    Hard-wiring path names is a bit inflexible (and CM will verbosely warn
132    you when you do so at the time of CM.stabilize).  Therefore, you can
133    also use an anchored path as the value:
134    
135      a.cm (bind:(anchor:lib value:$a-lib))
136      b.cm (bind:(anchor:lib value:$b-lib))
137    
138    Now you can globally configure (using the usual CM.Anchor.anchor or
139    pathconfig machinery) bindings for "a-lib" and "b-lib".  Since "lib"
140    itself is always locally bound, setting it globally is no longer
141    meaningful or necessary (but it does not hurt either).  In fact, "lib"
142    can still be used as a global anchor for separate purposes.  As a
143    matter of fact, one can locally define "lib" in terms of a global
144    "lib":
145    
146      a.cm (bind:(anchor:lib value:$lib/a))
147      b.cm (bind:(anchor:lib value:$lib/b))
148    
149    ** 3: The encoding of path names has changed.  This affects the way
150    path names are shown in CM's progress report and also the internal
151    protocol encoding used for parallel make.
152    
153    The encoding now uses one or more ':'-separated segments.  Each
154    segments corresponds to a file that has been specified relative to the
155    file given by its preceding segment.  The first segment is either
156    relative to the CWD, absolute, or anchored.  Each segment itself is
157    basically a Unix pathname; all segments but the first are relative.
158    
159    Example:
160    
161       $foo/bar/baz.cm:a/b/c.sml
162    
163    This path denotes the file bar/a/b/c.sml relative to the directory
164    denoted by anchor "foo".  Notice that the encoding also includes
165    baz.cm which is the .cm-file that listed a/b/c.sml.  As usual, such
166    paths are resolved relative to the .cm-files directory, so baz.cm must
167    be ignored to get the "real" pathname.
168    
169    To make this fact more obvious, CM puts the names of such "virtual
170    arcs" into parentheses when they appear in progress reports. (No
171    parentheses will appear in the internal protocol encoding.)  Thus,
172    what you really see is:
173    
174      $foo/bar/(baz.cm):a/b/c.sml
175    
176    I find this notation to be much more informative than before.
177    
178    Another new feature of the encoding is that special characters
179    including parentheses, colons, (back)slashes, and white space are
180    written as \ddd (where ddd is the decimal encoding of the character).
181    
182    *** The CM manual still needs to be updated.
183    
184    ----------------------------------------------------------------------
185    Name: Allen Leung
186    Date: 2000/06/15 00:38:00
187    Tag: leunga-20000615-x86-peephole
188    
189    x86 Peephole fix by Fermin.  Affects c-- and moby only.
190    
191    ----------------------------------------------------------------------
192    Name: Matthias Blume
193    Date: 2000/06/12 11:40:00
194    Tag: blume-20000612-parmakefix
195    Description:
196    
197    More cleanup after changing the file naming scheme: This time I
198    repaired the parallel make mechanism for CMB.make which I broke earlier.
199    
200    ----------------------------------------------------------------------
201    Name: Allen Leung
202    Date: 2000/06/09 01:25:00
203    Tag: leunga-20000609-various
204    
205    None of these things should affect normal SML/NJ operations
206    
207    1. Peephole improvements provided by Fermin (c--)
208    2. New annotation DEFUSE for adding extra dependence (moby)
209    3. New X86 LOCK instructions (moby)
210    4. New machine description language for reservation tables (scheduling)
211    5. Fixes to various optimization/analysis modules (branch chaining, dominator
212       trees etc.)
213    6. I've changed the CM files so that they can work with versions
214       110.0.6, 110.25 and 110.28
215    
216    ----------------------------------------------------------------------
217    Name: Matthias Blume
218    Date: 2000/06/09 12:40:00
219    Tag: blume-20000609-log
220    Description:
221    
222    - Removed all(?) remaining RCS Log entries from sources.
223    
224    - Fixed bug in ml-yacc and ml-lex sources (use explicit anchors for
225      anchored paths).
226    
227    ----------------------------------------------------------------------
228    Name: Matthias Blume
229    Date: 2000/06/07 17:00:00 JST
230    Tag: blume-20000607-no-implicit-anchors
231    Description:
232    
233    1. This update changes the default setting for
234    CM.Control.implicit_anchors from true to false.  This means that
235    implicit anchors are no longer permitted by default.  I also tried to
236    make sure that nothing else still relies on implicit anchors.
237    (This is the next step on the schedule towards a CM that does not even
238    have the notion of implicit anchors anymore.)
239    
240    2. More CM manual updates.
241    
242    3. I managed to track down and fix the pickling bug I mentioned last
243    time.  Because of the previously existing workaround, this entails no
244    immediate practical changes.
245    
246    ----------------------------------------------------------------------
247    Name: Matthias Blume
248    Date: 2000/06/06 11:15:00 JST
249    Tag: blume-20000606-lazierpickle
250    Description:
251    
252    !!!! NEW BOOT FILES !!!!
253    
254    * The main purpose of this update is to make library pickles lazier in
255    order to reduce the initial space penalty for autoloading a library.
256    As a result, it is now possible to have $smlnj/compiler.cm
257    pre-registered.  This should take care of the many complaints or
258    inquiries about missing structure Compiler.  This required changes to
259    CM's internal data structures and small tweaks to some algorithms.
260    
261    As a neat additional effect, it is no longer necessary (for the sake
262    of lean heap image files) to distinguish between a "minimal" CM and a
263    "full" CM.  Now, there is only one CM (i.e., the "full" version:
264    $smlnj/cm.cm aka $smlnj/cm/full.cm), and it is always available at the
265    interactive top level. ($smlnj/cm/minimal.cm is gone.)
266    
267    To make the life of compiler-hackers easier, "makeml" now also
268    pre-registers $smlnj/cmb.cm (aka $smlnj/cmb/current.cm).  In other
269    words, after you bootstrap a new sml for the first time, you will not
270    have to autoload $smlnj/cmb.cm again afterwards.  (The first time
271    around you will still have to do it, though.)
272    
273    * A second change consists of major updates to the CM manual.  There
274    are now several appendices with summary information and also a full
275    specification of the CM description file syntax.
276    
277    * In directory src/system I added the script "allcross".  This script
278    invokes sml and cross-compiles the compiler for all supported
279    architectures.  (Useful when providing a new set of boot files.)
280    
281    * There seems to be a latent bug in my "lazy pickles" mechanism.  I
282    added a small tweak to pickle-util.sml to work around this problem,
283    but it is not a proper fix yet.  I will investigate further.  (The
284    effect of the bug was an inflation of library pickle size.)
285    
286    * Version number increased to 110.28.1 (to avoid compatibility problems).
287    
288    ----------------------------------------------------------------------
289    Name: Allen Leung
290    Date: 2000/05/25 17:28 EDT
291    Tag: leunga-20000525-ra
292    Description:
293    
294      Fixed a bug in freezing phase of the register allocator.
295    
296    ----------------------------------------------------------------------
297    Name: Allen Leung
298    Date: 2000/05/15 22:53 EDT
299    Tag: leunga-20000515-alpha-x86-ra
300    Description:
301    
302      1. Alpha
303    
304          Slight cleanup.  Removed the instruction SGNXL
305    
306      2. X86
307    
308          Added the following instructions to the instruction set:
309    
310            ROLx, RORx,
311            BTx, BTSx, BTLx, BTRx,
312            XCHGx, and variants with the LOCK prefix
313    
314      3. Register Allocation
315    
316          The module ra-rewrite-with-renaming has been improved.
317    
318      These have no effect on SML/NJ.
319    
320    ----------------------------------------------------------------------
321    Name: Matthias Blume
322    Date: 2000/05/15 16:20:00 JST
323    Tag: blume-20000515-lightrebuild
324    Description:
325    
326    1. I added an alternative to "-rebuild" to "makeml".  The difference is
327       that prior to calling CMB.make' the CM-variable "LIGHT" will be
328       defined.  In effect, the command will not build any cross-compiler
329       backends and therefore finish more quickly.
330    
331       The "fixpt" script also takes a "-light" switch to be able to use
332       this new facility while compiling for a fixpoint.
333    
334    2. I replaced all mentions of anchored paths in group owner specifications
335       with simple relative paths (usually starting with "..").
336       The rationale is that a library's internal workings should not be
337       compromised by the lack of some anchor.  (An anchor is necessary
338       for someone who wants to refer to the library by an anchored path,
339       but it should not be necessary to build the same library in the first
340       place.)
341    
342    3. I changed the way CM's tool mechanism determines the shell command
343       string used for things like ml-yacc etc. so that it does not break
344       when CM.Control.implicit_anchors is turned off.
345    
346    ----------------------------------------------------------------------
347    Name: Matthias Blume
348    Date: 2000/05/12 18:20:00 JST
349    Tag: blume-20000512-ml-build
350    Description:
351    
352    Fixed a bug in config/_ml-build that prevented ml-yacc and ml-lex from
353    getting installed properly (by config/install.sh).
354    
355    ----------------------------------------------------------------------
356    Name: Matthias Blume
357    Date: 2000/05/12 17:30:00 JST
358    Tag: blume-20000512-anchors
359    Description:
360    
361    !!! NEW BOOT FILES !!!
362    
363    This change is in preparation of fading out support for "implicitly
364    anchored path names".  I went through all sources and used the
365    explicit (and relatively new) $-notation.  See system/README and the
366    CM manual for more info on this.
367    
368    I also modified the anchoring scheme for some things such as "smlnj",
369    "MLRISC", "cm", etc. to take advantage of the fact that explicit
370    anchors are more expressive: anchor name and first arc do not have to
371    coincide.  This entails the following user-visible change:
372    
373    You have to write $smlnj/foo/bar instead of smlnj/foo/bar.  In
374    particular, when you fire up sml with a command-line argument, say,
375    e.g.:
376    
377       sml '$smlnj/cmb.cm'
378    
379    At the ML toplevel prompt:
380    
381       CM.autoload "$smlnj/cmb.cm";
382    
383    There is also a new controller in CM.Control that can be used to turn
384    off all remaining support for implicit anchors by saying:
385    
386        CM.autoload "$smlnj/
387        #set CM.Control.implicit_anchors false;
388    
389    This causes CM to reject implicitly anchored paths.  This is (for the
390    time being) less permissive than the "final" version where there will
391    be no more such implicit anchors and relative paths will be just that:
392    relative.
393    
394    The next step (version after next version?) will be to make the
395    default for CM.Control.implicit_anchors false.  After the dust has
396    settled, I can then produce the "final" version of this...
397    
398    Note: Since bootstrapping is a bit tricky, I provided new boot files.
399    
400    ----------------------------------------------------------------------
401    Name: Matthias Blume
402    Date: 2000/05/11 16:30:00 JST
403    Tag: blume-20000511-sources
404    Description:
405    
406    The main change is that I added function CM.sources as a generalized
407    version of the earlier CM.makedepend.  This entails the following
408    additional changes:
409    
410      - CM.makedepend has been dropped.
411    
412      - CM manual has been updated.
413    
414      - TOOLS signature and API have been changed.
415    
416    ----------------------------------------------------------------------
417    Name: Allen Leung
418    Date: 2000/05/10 21:17 EDT
419    Tag: leunga-20000510-moby-c--ssa
420    Description:
421    
422      Various bug fixes and new features for C--, Moby and MLRISC optimizations.
423    None of these affect SML/NJ.
424    
425    1. Register Allocation
426    
427        a. A new ra spilling module (ra/ra-spill-with-renaming) is implemented.
428           This module tries to remove local (i.e. basic block level) redundancies
429           during spilling.
430    
431        b. A new framework for performing region based register allocation.
432           Not yet entirely functional.
433    
434    2. X86
435    
436       a. DefUse for POP was missing the stack pointer [found by Lal]
437       b. Reload for CALL was incorrect in X86Spill [found by John]
438       c. Various fixes in X86Spill so that it can be used correctly for
439          the new spilling module.
440    
441    3. SSA/IR
442    
443       a. New module ir/dj-dataflow.sml implements elimination based
444          data flow analysis.
445    
446    4. MLRiscGen
447    
448       a. Fix for gc type annotation
449    
450    5. MDGen
451    
452       Various fixes for machine description -> ml code translation.  For ssa
453       only.
454    
455    ----------------------------------------------------------------------
456    Name: Allen Leung
457    Date: 2000/05/08 22:17 EDT
458    Tag: leunga-20000508-labexp
459    Description:
460    
461      Fermin has found a few assembly problems with constant expressions
462      generated in LabelExp.  Mostly, the problems involve extra parentheses,
463      which choke on dumb assemblers.  This is his fix.
464    
465    ----------------------------------------------------------------------
466    Name: Dave MacQueen
467    Date: 2000/04/09 14:00 EDT
468    Tag: dbm-20000502-Version_110_28
469    Description:
470    
471    1. Updated src/compiler/TopLevel/main/version.sml to version 110.28
472    
473    2. Updated config/version to 110.28
474    
475    3. Updated config/srcarchiveurl
476    
477    3. New boot files!
478       ftp://ftp.research.bell-labs.com/dist/smlnj/working/110.28/
479    
480    ----------------------------------------------------------------------
481    Name: Matthias Blume
482    Date: 2000/05/01 19:05:00 JST
483    Tag: blume-20000501-noweb
484    Description:
485    
486    A new noweb tool has been added.  The existing system is entirely
487    unaffected by this, but some CM users have asked for renewed noweb
488    support.  Everything is documented in the CM manual.
489    
490    New (plugin) libraries:
491    
492       noweb-tool.cm
493       nw-ext.cm
494    
495    ----------------------------------------------------------------------
496    Name: Dave MacQueen
497    Date: 2000/04/30 12:40PM EDT
498    Tag: dbm-20000430-bug_fixes
499    Description:
500    
501    1. Fix for bug 1498
502       smlnj/src/system/Basis/Implementation/Unsafe/object.sig
503       smlnj/src/system/Basis/Implementation/Unsafe/object.sml
504         added toRealArray function
505       smlnj/src/compiler/MiscUtil/print/ppobj.sml
506         added check for tag Obj.RealArray to array printing case in ppObj
507    
508    2. Fix for bug 1510
509       smlnj/src/compiler/Semant/types/typesutil.sml
510         fixed definition of dummyargs (used by equalTycon) so that
511         dummy args are distinct types
512    
513    ----------------------------------------------------------------------
514    Name: Matthias Blume
515    Date: 2000/04/30 01:00:00 JST
516    Tag: blume-20000430-versions
517    Description:
518    
519    1. CM version numbering added.  This is an implementation of Lal's
520       proposal for adding version numbers and version checking to .cm
521       files.  Lal said that his proposal was just that -- a proposal.
522       For the time being I went ahead and implemented it so that people
523       can comment on it.  Everything is completely backward-compatible
524       (except for the stable library format, i.e., new bootfiles!).
525    
526       As usual, see the CM manual for details.
527    
528    2. An alternative syntax for anchored paths has been implemented.
529       Dave has recently voiced the same concerns that I had when I did
530       this, so there should be some support.  My take is that eventually
531       I will let support for the current syntax (where anchors are
532       "implicit") fade out in favor of the new, explicit syntax.
533       In order to be backward-compatible, both old and new syntax are
534       currently supported.
535    
536       Again, see the CM manual for details.
537    
538    3. Parallel make is trying to be slightly smarter:  When the master
539       process finds a "bottleneck", i.e., when there is only one
540       compilation unit that can be compiled and everybody else is
541       waiting on it, then it will simply compile it directly instead
542       of clumsily telling one of the slaves to do it.
543    
544    4. Support for "unsharing" added.  This is necessary in order to be
545       able to have two different versions of the same library running
546       at the same time (e.g., for trying out a new MLRISC while still
547       having the old MLRISC linked into the current compiler, etc.)
548       See the CM manual.
549    
550    5. Simple "makedepend" functionality added for generating Makefile
551       dependency information.  (This is rather crude at the moment.
552       Expect some changes here in the future.)
553    
554    6. ".fun" added as a recognized suffix for ML files. Also documented
555       explicitly in the manual that the fallback behavior (unknown suffix
556       -> ML file) is not an official feature!
557    
558    7. Small changes to the pickler for stable libraries.
559    
560    8. Several internal changes to CM (for cleanup/improvement).
561    
562    
563    !!!! NEW BINFILES !!!!
564    
565    ----------------------------------------------------------------------
566    Name: Matthias Blume
567    Date: 2000/04/28 17:30:00 JST
568    Tag: blume-20000428-pathconfig
569    Description:
570    
571    1. I changed config/install.sh to remove duplicate entries from the
572       lib/pathconfig file at the end.  Moreover, the final version of
573       lib/pathconfig is sorted alphabetically.  The same (sorting) is done
574       in src/system/installml.
575    
576    2. The config/install.sh script now consistently uses relative
577       pathnames in lib/pathconfig whenever the anchor is in the lib
578       directory.  (So far this was true for the libraries that come
579       pre-compiled and bundled as part of the bootfiles but not for
580       libraries that are compiled by the script itself.)
581    
582    ----------------------------------------------------------------------
583    Name: Matthias Blume
584    Date: 2000/04/26 13:10:00 JST
585    Tag: blume-20000426-fun_suffix
586    Description:
587    
588    Added ".fun" as a recognized file name suffix (for ML code).
589    
590    ----------------------------------------------------------------------
591    Name: Allen Leung
592    Date: 2000/04/25 17:00:00 EST
593    Tag: leunga-20000425-alpha-ra
594    Description:
595    
596    1. Alpha
597    
598        PSEUDOARITH was missing in AlphaRewrite.  This causes an endless loop
599    in C--.
600    
601    2. RA
602    
603       Added a flag "ra-dump-size" to print out the size of the flowgraph
604       and the interference graph.
605    
606    ----------------------------------------------------------------------
607    Name: Dave MacQueen
608    Date: 2000/04/25/
609    Tag: dbm-20000425-mlyacc_doc_examples
610    Description:
611      Updated mlyacc.tex sections 5 and 7 for SML '97 and CM.
612      Updated all three examples in src/ml-yacc/examples to run
613      under 110.* using CM.make.
614    
615    ----------------------------------------------------------------------
616    Name: Allen Leung
617    Date: 2000/04/20 23:04:00 EST
618    Tag: leunga-20000420-ssa-c---stuff
619    Description:
620    
621      This update synchronizes my repository with Yale's.  Most of these
622    changes, however, do not affect SML/NJ at all (the RA is an exception).
623    
624    1. Register Allocator
625    
626       a. An improvement in the interference graph construction:
627          Given a copy
628    
629                s <- t
630    
631          no interference edge between s and t is added for this definition of s.
632    
633       b. I've added two new spill heuristic modules that Fermin and I developed
634          (in the new library RA.cm). These are unused in SML/NJ but maybe
635          useful for others (Moby?)
636    
637    2. X86
638    
639       a. Various fixes in the backend provided by Fermin [C--] and Lal.
640    
641    3. Alpha
642    
643       a. Added the BSR instruction and code generation that goes with it [C--]
644       b. Other fixes too numerous to recount provided by Fermin [C--]
645    
646    4. Regmaps
647    
648       a. The regmaps are not initialized with the identity physical bindings
649          at creation time.  This is unneeded.
650    
651    5. MLRISC Optimizations
652    
653       a. The DJ-Graph module can now compute the iterated dominance frontiers
654          intersects with liveness incrementally in linear time! Woohoo!
655          This is now used in my new SSA construction algorithm.
656    
657       b. THe branch reorganization module is now smarter about linear chains of
658          basic blocks.
659    
660    
661    ----------------------------------------------------------------------
662    Name: Matthias Blume
663    Date: 2000/04/12 13:52:00 JST
664    Tag: blume_main_v110p27_1
665    Description:
666    
667    Changed install.sh script to handle archive files without version number
668    and to use "boot.<arch>-<os>" instead of "sml.boot.<arch>-<os>" for the
669    name of the boot file archive.
670    
671    ----------------------------------------------------------------------
672    Name: Dave MacQueen
673    Date: 2000/04/09 14:00 EDT
674    Tag: dbm-20000410-Version_110_27
675    Description:
676    
677    1. Updated src/compiler/TopLevel/main/version.sml to version 110.27
678    
679    2. Updated src/config/version to 110.27
680    
681    3. New boot files!
682    
683    ----------------------------------------------------------------------
684    Name: Allen Leung
685    Date: 2000/04/09 19:09:00 EST
686    Tag: leunga-20000409-misc
687    Description:
688    
689    1.  Yet another fix for x86 assembly for idivl, imull, mull and friends.
690    
691    2.  Miscellaneous improvements to MLRISC (unused in sml/nj)
692    
693    ----------------------------------------------------------------------
694  Name: Stefan  Name: Stefan
695  Date: 2000/04/07 10:00:00 EDT  Date: 2000/04/07 10:00:00 EDT
696  Tag: monnier-20000406-branch-handling  Tag: monnier-20000406-branch-handling
# Line 97  Line 776 
776    
777  3.  Assembly  3.  Assembly
778    
779      When generating assemby, resolve the value of client defined constants,      When generating assembly, resolve the value of client defined constants,
780      instead of generating symbolic values.  This is controlled by the      instead of generating symbolic values.  This is controlled by the
781      new flag "asm-resolve-constants", which is default to true.      new flag "asm-resolve-constants", which is default to true.
782    
# Line 120  Line 799 
799    
800  To this end, I arranged that instead of "structure Core" as "structure  To this end, I arranged that instead of "structure Core" as "structure
801  _Core" is bound in the pervasive environment.  Core access is done via  _Core" is bound in the pervasive environment.  Core access is done via
802  _Core (which can never be accidentially rebound because _Core is not a  _Core (which can never be accidentally rebound because _Core is not a
803  legal surface-syntax symbol).  legal surface-syntax symbol).
804    
805  The current solution is much cleaner because the core environment is  The current solution is much cleaner because the core environment is
# Line 130  Line 809 
809  with dynamic and symbolic parts of the core environment.  with dynamic and symbolic parts of the core environment.
810    
811  Remaining hackery (to bind the "magic" symbol _Core) is localized in the  Remaining hackery (to bind the "magic" symbol _Core) is localized in the
812  compilation mananger's bootstrap compiler (actually: in the "init group"  compilation manager's bootstrap compiler (actually: in the "init group"
813  handling).  See the comments in src/system/smlnj/init/init.cmi for  handling).  See the comments in src/system/smlnj/init/init.cmi for
814  more details.  more details.
815    
# Line 245  Line 924 
924     (specified in the .cm file at each instance where the tool's class is     (specified in the .cm file at each instance where the tool's class is
925     used).     used).
926    
927     This was done to accomodate the new "make" and "shell" tools which     This was done to accommodate the new "make" and "shell" tools which
928     facilitate fairly seemless hookup to portions of code managed using     facilitate fairly seamless hookup to portions of code managed using
929     Makefiles or Shell scripts.     Makefiles or Shell scripts.
930    
931     There are no classes "shared" or "private" anymore.  Instead, the     There are no classes "shared" or "private" anymore.  Instead, the
# Line 258  Line 937 
937    
938     All existing tools are described in the CM manual.     All existing tools are described in the CM manual.
939    
940     - Slightly better error handling.  (CM now surpresses many followup     - Slightly better error handling.  (CM now suppresses many followup
941     error messages that tended to be more annoying than helpful.)     error messages that tended to be more annoying than helpful.)
942    
943  2. Major changes to the compiler's static environment data structures.  2. Major changes to the compiler's static environment data structures.
# Line 392  Line 1071 
1071    
1072       I've changed andl to testl in the floating point test sequence       I've changed andl to testl in the floating point test sequence
1073       whenever appropriate.  The Intel optimization guide states that       whenever appropriate.  The Intel optimization guide states that
1074       testl is perferable to andl.       testl is preferable to andl.
1075    
1076  7. RA (x86 only)  7. RA (x86 only)
1077    
# Line 574  Line 1253 
1253    
1254  1. Tools.registerStdShellCmdTool (from smlnj/cm/tool.cm) takes an  1. Tools.registerStdShellCmdTool (from smlnj/cm/tool.cm) takes an
1255  additional argument called "template" which is an optional string that  additional argument called "template" which is an optional string that
1256  specifiel the layout of the tool command line.  See the CM manual for  specifies the layout of the tool command line.  See the CM manual for
1257  explanation.  explanation.
1258    
1259  2. A special-purpose tool can be "regisitered" by simply dropping the  2. A special-purpose tool can be "registered" by simply dropping the
1260  corresponding <...>-tool.cm (and/or <...>-ext.cm) into the same  corresponding <...>-tool.cm (and/or <...>-ext.cm) into the same
1261  directory where the .cm file lives that uses this tool.  (The  directory where the .cm file lives that uses this tool.  (The
1262  behavior/misfeature until now was to look for the tool description  behavior/misfeature until now was to look for the tool description
# Line 621  Line 1300 
1300  rebuild.  Having sets of the form <base><k>.{bin,boot}.<arch>-unix for  rebuild.  Having sets of the form <base><k>.{bin,boot}.<arch>-unix for
1301  <k>=1,2,... is normally not a good idea when invoking fixpt.  However,  <k>=1,2,... is normally not a good idea when invoking fixpt.  However,
1302  they might be the result of an earlier partial run of fixpt (which  they might be the result of an earlier partial run of fixpt (which
1303  perhaps got accidentially killed).  In this case, fixpt will quickly  perhaps got accidentally killed).  In this case, fixpt will quickly
1304  move through what exists before continuing where it left off earlier,  move through what exists before continuing where it left off earlier,
1305  and, thus, saves a lot of time.  and, thus, saves a lot of time.
1306    
# Line 671  Line 1350 
1350    it from that remote directory.    it from that remote directory.
1351    This should simplify installation further:  For machines that have    This should simplify installation further:  For machines that have
1352    access to the internet, just fetch <version>-config.tgz, unpack it,    access to the internet, just fetch <version>-config.tgz, unpack it,
1353    edit config/targets, and go (run config/install.sh).  The scipt will    edit config/targets, and go (run config/install.sh).  The script will
1354    fetch everything else that it might need all by itself.    fetch everything else that it might need all by itself.
1355    
1356    For CVS users, this mechanism is not relevant for source archives, but    For CVS users, this mechanism is not relevant for source archives, but

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