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revision 710, Tue Oct 17 08:21:09 2000 UTC revision 929, Tue Sep 18 15:48:42 2001 UTC
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14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16  Name: Matthias Blume  Name: Matthias Blume
17    Date: 2001/09/18 11:45:00 EDT
18    Tag: Release_110_36 (retag)
19    Description:
20    
21    Fixed mistake in config/preloads. Retagged as 110.36.
22    
23    ----------------------------------------------------------------------
24    Name: Matthias Blume
25    Date: 2001/09/18 09:40:00 EDT
26    Tag: Release_110_36_orig (tag changed)
27    Description:
28    
29    New version (110.36).  New bootfiles.
30    
31    ----------------------------------------------------------------------
32    Name: Matthias Blume
33    Date: 2001/09/14 16:15:00 EDT
34    Tag: blume-20010914-x86fastfp
35    Description:
36    
37    John committed some changes that Allen made, in particular a (hopefully)
38    correctly working version of the x86-fp module.
39    
40    I changed the default setting of the Control.MLRISC.getFlag "x86-fast-fp"
41    flag to "true".  Everything seems to compile to a fixpoint ok, and
42    "mandelbrot" speeds up by about 15%.
43    
44    ----------------------------------------------------------------------
45    Name: Matthias Blume
46    Date: 2001/09/13 11:20:00 EDT
47    Tag: blume-20010913-minimal
48    Description:
49    
50    1. Stefan Monnier's patch to fix a miscompilation problem that
51       was brought to light by John Reppy's work on Moby.
52    
53    2. Implemented a minimal "structure Compiler" that contains just
54       "version" and "architecture".  The minimal version will be
55       available when the full version is not.  This is for backward-
56       compatibility with code that wants to test Compiler.version.
57    
58    ----------------------------------------------------------------------
59    Name: Matthias Blume
60    Date: 2001/08/28 14:03:00 EDT
61    Tag: blume-20010828-ml-lex
62    Description:
63    
64    Fix for bug 1581, received from Neophytos Michael.
65    
66    ----------------------------------------------------------------------
67    Name: Matthias Blume
68    Date: 2001/08/27 11:20:00 EDT
69    Tag: blume-20010827-readme11035
70    Description:
71    
72    Fleshed out the README file for 110.35.
73    
74    ----------------------------------------------------------------------
75    Name: Matthias Blume
76    Date: 2001/08/24 17:10:00 EDT
77    Tag: Release_110_35
78    Description:
79    
80    New version number (110.35).  New bootfiles.
81    
82    ----------------------------------------------------------------------
83    Name: Lal George
84    Date: 2001/08/24 13:47:18 EDT 2001
85    Tag: george-20010824-MLRISC-graphs
86    Description:
87    
88     removed clusters from MLRISC completely and replaced with graphs.
89    
90    ----------------------------------------------------------------------
91    Name: Matthias Blume
92    Date: 2001/08/23 17:50:00 EDT
93    Tag: blume-20010823-toplevel
94    Description:
95    
96    - some reorganization of the code that implements various kinds of
97      environments in the compiler (static, dynamic, symbolic, combined)
98    - re-implemented the EnvRef module so that evalStream works properly
99      (if the stream contains references to "use", "CM.make", etc.)
100    - cleaned up evalloop.sml and interact.sml (but they need more cleaning)
101    
102    ----------------------------------------------------------------------
103    Name: Matthias Blume
104    Date: 2001/08/20 15:50 EDT
105    Tag: blume20010820-slipup
106    Description:
107    
108    I forgot to commit a few files.  Here they are...
109    
110    ----------------------------------------------------------------------
111    Name: Matthias Blume
112    Date: 2001/08/20 15:35:00 EDT
113    Tag: blume-20010820-debugprof
114    Description:
115    
116    !!!! NEW BOOTFILES !!!!
117    
118    This is another round of reorganizing the compiler sources.  This
119    time the main goal was to factor out all the "instrumentation"
120    passes (for profiling and backtracing) into their own library.
121    The difficulty was to do it in such a way that it does not depend
122    on elaborate.cm but only on elabdata.cm.
123    
124    Therefore there have been further changes to both elaborate.cm and
125    elabdata.cm -- more "generic" things have been moved from the former
126    to the latter.  As a result, I was forced to split the assignment
127    of numbers indicating "primtyc"s into two portions: SML-generic and
128    SML/NJ-specific.  Since it would have been awkward to maintain,
129    I bit the bullet and actually _changed_ the mapping between these
130    numbers and primtycs.  The bottom line of this is that you need
131    a new set of bin- and bootfiles.
132    
133    I have built new bootfiles for all architectures, so doing a fresh
134    checkout and config/install.sh should be all you need.
135    
136    The newly created library's name is
137    
138        $smlnj/viscomp/debugprof.cm
139    
140    and its sources live under
141    
142        src/compiler/DebugProf
143    
144    ----------------------------------------------------------------------
145    Name: Matthias Blume
146    Date: 2001/08/15 17:15:00 EDT
147    Tag: blume-20010815-compreorg
148    Description:
149    
150    This is a first cut at reorganizing the CM libraries that make up the
151    core of the compiler.  The idea is to separate out pieces that could
152    be used independently by tools, e.g., the parser, the typechecker, etc.
153    
154    The current status is a step in this direction, but it is not quite
155    satisfactory yet.  Expect more changes in the future.
156    
157    Here is the current (new) organization...
158    
159        What used to be $smlnj/viscomp/core.cm is now divided into
160        six CM libraries:
161    
162             $smlnj/viscomp/basics.cm
163                           /parser.cm
164                           /elabdata.cm
165                           /elaborate.cm
166                           /execute.cm
167                           /core.cm
168    
169        The CM files for these libraries live under src/system/smlnj/viscomp.
170        All these libraries are proxy libraries that contain precisely
171        one CM library component.  Here are the locations of the components
172        (all within the src/compiler tree):
173    
174             Basics/basics.cm
175             Parse/parser.cm
176             ElabData/elabdata.cm
177             Elaborator/elaborate.cm
178             Execution/execute.cm
179             core.cm
180    
181         [This organization is the same that has been used already
182         for a while for the architecture-specific parts of the visible
183         compiler and for the old version of core.cm.]
184    
185         As you will notice, many source files have been moved from their
186         respective original locations to a new home in one of the above
187         subtrees.
188    
189         The division of labor between the new libraries is the following:
190    
191             basics.cm:
192                - Simple, basic definitions that pertain to many (or all) of
193                  the other libraries.
194             parser.cm:
195                - The SML parser, producing output of type Ast.dec.
196                - The type family for Ast is also defined and exported here.
197             elabdata.cm:
198                - The datatypes that describe input and output of the elaborator.
199                  This includes types, absyn, and static environments.
200             elaborator.cm:
201                - The SML/NJ type checker and elaborator.
202                  This maps an Ast.dec (with a given static environment) to
203                  an Absyn.dec (with a new static environment).
204                - This libraries implements certain modules that used to be
205                  structures as functors (to remove dependencies on FLINT).
206             execute.cm:
207                - Everything having to do with executing binary code objects.
208                - Dynamic environments.
209             core.cm:
210                - SML/NJ-specific instantiations of the elaborator and MLRISC.
211                - Top-level modules.
212                - FLINT (this should eventually become its own library)
213    
214    Notes:
215    
216    I am not 100% happy with the way I separated the elaborator (and its
217    data structures) from FLINT.  Two instances of the same problem:
218    
219        1. Data structures contain certain fields that carry FLINT-specific
220           information.  I hacked around this using exn and the property list
221           module from smlnj-lib.  But the fact that there are middle-end
222           specific fields around at all is a bit annoying.
223    
224        2. The elaborator calculates certain FLINT-related information.  I tried
225           to make this as abstract as I could using functorization, but, again,
226           the fact that the elaborator has to perform calculations on behalf
227           of the middle-end at all is not nice.
228    
229        3. Having to used exn and property lists is unfortunate because it
230           weakens type checking.  The other alternative (parameterizing
231           nearly *everything*) is not appealing, though.
232    
233    I removed the "rebinding =" warning hack because due to the new organization
234    it was awkward to maintain it.  As a result, the compiler now issues some of
235    these warnings when compiling init.cmi during bootstrap compilation. On
236    the plus side, you also get a warning when you do, for example:
237       val op = = Int32.+
238    which was not the case up to now.
239    
240    I placed "assign" and "deref" into the _Core structure so that the
241    code that deals with the "lazy" keyword can find them there.  This
242    removes the need for having access to the primitive environment
243    during elaboration.
244    
245    ----------------------------------------------------------------------
246    Name: Matthias Blume
247    Date: 2001/08/13
248    Tag: blume-20010813-closures
249    Description:
250    
251    This fix was sent to us by Zhong Shao.  It is supposed to improve the
252    performance of certain loops by avoiding needless closure allocation.
253    
254    ----------------------------------------------------------------------
255    Name: Lal George
256    Date: 2001/07/31 10:03:23 EDT 2001
257    Tag: george-20010731-x86-fmalloc
258    Description: Fixed bug in x86 calls
259    
260        There was a bug where call instructions would mysteriously
261        vanish. The call instruction had to be one that returned
262        a floating point value.
263    
264    ----------------------------------------------------------------------
265    Name: Lal George
266    Date: 2001/07/19 16:36:29 EDT 2001
267    Tag: george-20010719-simple-cells
268    Description:
269    
270    I have dramatically simplified the interface for CELLS in MLRISC.
271    
272    In summary, the cells interface is broken up into three parts:
273    
274      1. CellsBasis : CELLS_BASIS
275    
276            CellsBasis is a top level structure and common for all
277            architectures.  it contains the definitions of basic datatypes
278            and utility  functions over these types.
279    
280      2. functor Cells() : CELLS
281    
282            Cells generates an interface for CELLS that incorporates the
283            specific resources on the target architecture, such as the
284            presence of special register classes, their number and size,
285            and various useful substructures.
286    
287      3. <ARCH>CELLS
288    
289            e.g. SparcCells: SPARCCELLS
290    
291            <ARCH>CELLS usually contains additional bindings for special
292            registers  on the architecture, such as:
293    
294                    val r0 : cell           (* register zero *)
295                    val y : cell            (* Y register *)
296                    val psr : cell          (* processor status register *)
297                    ...
298    
299            The structure returned by applying the Cells functor is opened
300            in this interface.
301    
302    The main implication of all this is that the datatypes for cells is
303    split between CellsBasis and CELLS -- a fairly simple change for user
304    code.
305    
306    In the old scheme the CELLS interface had a definitional binding of
307    the form:
308    
309            signature CELLS = sig
310    
311               structure CellsBasis = CellsBasis
312    
313               ...
314    
315            end
316    
317    With all the sharing constraints that goes on in MLRISC, this old
318    design  quickly leads to errors such as:
319    
320            "structure definition spec inside of sharing ... "
321    
322    
323    and appears to require an unacceptable amount of sharing and where
324    constraint hackery.
325    
326    I think this error message (the interaction of definitional specs and
327    sharing) requires more explanation on our web page.
328    
329    ----------------------------------------------------------------------
330    Name: Matthias Blume
331    Date: 2001/07/19 15:00:00 EDT
332    Tag: blume-20010719-libreorg
333    Description:
334    
335    This update puts together a fairly extensive but straightforward change
336    to the way the libraries that implement the interactive system are
337    organized:
338    
339       The biggest change is the elimination of structure Compiler.  As a
340       replacement for this structure, there is now a CM library
341       (known as $smlnj/compiler.cm or $smlnj/compiler/current.cm)
342       that exports all the substructures of the original structure Compiler
343       directly.  So instead of saying Compiler.Foo.bar one now simply
344       says Foo.bar.  (The CM libraries actually export a collection of
345       structures that is richer than the collection of substructures of
346       structure Compiler.)
347    
348       To make the transition smooth, there is a separate library called
349       $smlnj/compiler/compiler.cm which puts together and exports the
350       original structure Compiler (or at least something very close to it).
351    
352       There are five members of the original structure Compiler
353       that are not exported directly but which instead became members
354       of a new structure Backend (described by signature BACKEND).  These are:
355       structure Profile (: PROFILE), structure Compile (: COMPILE), structure
356       Interact (: INTERACT), structure Machine (: MACHINE), and val
357       architecture (: string).
358    
359       Structure Compiler.Version has become structure CompilerVersion.
360    
361       Cross-compilers for alpha32, hppa, ppc, sparc, and x86 are provided
362       by $smlnj/compiler/<arch>.cm where <arch> is alpha32, hppa, ppc, sparc,
363       or x86, respectively.
364       Each of these exports the same frontend structures that
365       $smlnj/compiler.cm exports.  But they do not have a structure Backend
366       and instead export some structure <Arch>Backend where <Arch> is Alpha32,
367       Hppa, PPC, Sparc, or X86, respectively.
368    
369       Library $smlnj/compiler/all.cm exports the union of the exports of
370       $smlnj/compiler/<arch>.cm
371    
372       There are no structures <Arch>Compiler anymore, use
373       $smlnj/compiler/<arch>.cm instead.
374    
375       Library host-compiler-0.cm is gone.  Instead, the internal library
376       that instantiates CM is now called cm0.cm.  Selection of the host
377       compiler (backend) is no longer done here but. (Responsibility for it
378       now lies with $smlnj/compiler/current.cm.  This seems to be more
379       logical.)
380    
381       Many individual files have been moved or renamed.  Some files have
382       been split into multiple files, and some "dead" files have been deleted.
383    
384    Aside from these changes to library organization, there are also changes
385    to the way the code itself is organized:
386    
387       Structure Binfile has been re-implemented in such a way that it no
388       longer needs any knowledge of the compiler.  It exclusively deals
389       with the details of binfile layout.  It no longer invokes the
390       compiler (for the purpose of creating new prospective binfile
391       content), and it no longer has any knowledge of how to interpret
392       pickles.
393    
394       Structure Compile (: COMPILE) has been stripped down to the bare
395       essentials of compilation.  It no longer deals with linking/execution.
396       The interface has been cleaned up considerably.
397    
398       Utility routines for dealing with linking and execution have been
399       moved into their own substructures.
400    
401       (The ultimate goal of these changes is to provide a light-weight
402       binfile loader/linker (at least for, e.g., stable libraries) that
403       does not require CM or the compiler to be present.)
404    
405    CM documentation has been updated to reflect the changes to library
406    organization.
407    
408    ----------------------------------------------------------------------
409    Name: Matthias Blume
410    Date: 2001/07/10 17:30:00 EDT
411    Tag: Release_110_34
412    Description:
413    
414    Minor tweak to 110.34 (re-tagged):
415    
416      - README.html file added to CVS repository
417      - runtime compiles properly under FreeBSD 3.X and 4.X
418    
419    ----------------------------------------------------------------------
420    Name: Matthias Blume
421    Date: 2001/07/10 17:30:00 EDT
422    Tag: Release_110_34
423    Description:
424    
425    New version number (110.34). New bootfiles.
426    
427    ----------------------------------------------------------------------
428    Name: Matthias Blume
429    Date: 2001/07/09 16:00:00 EDT
430    Tag: blume-20010709-more-varargs
431    Description:
432    
433    I changed the handling of varargs in ml-nlffigen again:
434    The ellipsis ... will now simply be ignored (with an accompanying warning).
435    
436    The immediate effect is that you can actually call a varargs function
437    from ML -- but you can't actually supply any arguments beyond the ones
438    specified explicitly.  (For example, you can call printf with its format
439    string, but you cannot pass additional arguments.)
440    
441    This behavior is only marginally more useful than the one before, but
442    it has the advantage that a function or, more importantly, a function
443    type never gets dropped on the floor, thus avoiding follow-up problems with
444    other types that refer to the offending one.
445    
446    ----------------------------------------------------------------------
447    Name: Matthias Blume
448    Date: 2001/07/09 11:25:00 EDT
449    Tag: blume-20010709-varargs
450    Description:
451    
452    1. ckit-lib.cm now exports structure Error
453    2. ml-nlffigen reports occurences of "..." (i.e., varargs function types)
454       with a warning accompanied by a source location.  Moreover, it
455       merely skips the offending function or type and proceeds with the
456       rest of its work.u  As a result, one can safely feed C code containing
457       "..." to ml-nlffigen.
458    3. There are some internal improvements to CM, providing slightly
459       more general string substitutions in the tools subsystem.
460    
461    ----------------------------------------------------------------------
462    Name: Matthias Blume
463    Date: 2001/06/27 15:10:00 EDT
464    Tag: blume-20010627-concur
465    Description:
466    
467    Fixed a small bug in CM's handling of parallel compilation.
468    (You could observe the bug by Control-C-interrupting an ordinary
469    CMB.make or CM.stabilize and then attaching some compile servers.
470    The result was that all of a sudden the previously interrupted
471    compilation would continue on its own.  This was because of
472    an over-optimization: CM did not bother to clean out certain queues
473    when no servers were attached "anyway", resulting in the contents
474    of these queues to grab control when new servers did get attached.)
475    
476    There is also another minor update to the CM manual.
477    
478    ----------------------------------------------------------------------
479    Name: Matthias Blume
480    Date: 2001/06/26 16:15:00 EDT
481    Tag: blume-20010626-cmdoc
482    Description:
483    
484    Minor typo fixed in CM manual (syntax diagram for libraries).
485    
486    ----------------------------------------------------------------------
487    Name: Matthias Blume
488    Date: 2001/06/25 22:55:00 EDT
489    Tag: blume-20010625-x86pc
490    Description:
491    
492    Fixed a nasty bug in the X86 assembly code that caused signal
493    handlers to fail (crash) randomly.
494    
495    ----------------------------------------------------------------------
496    Name: Matthias Blume
497    Date: 2001/06/25 12:05:00 EDT
498    Tag: blume-20010625-nlffigen
499    Description:
500    
501    This update fixes a number of minor bugs in ml-nlffigen as reported by
502    Nick Carter <nbc@andrew.cmu.edu>.
503    
504      1. Silly but ok typedefs of the form "typedef void myvoid;" are now accepted.
505      2. Default names for generated files are now derived from the name of
506         the C file *without its directory*.  In particular, this causes generated
507         files to be placed locally even if the C file is in some system directory.
508      3. Default names for generated signatures and structures are also derived
509         from the C file name without its directory.  This avoids silly things
510         like "structure GL/GL".
511         (Other silly names are still possible because ml-nlffigen does not do
512          a thorough check of whether generated names are legal ML identifiers.
513          When in doubt, use command line arguments to force particular names.)
514    
515    ----------------------------------------------------------------------
516    Name: Matthias Blume
517    Date: 2001/06/21 12:25:00 EDT
518    Tag: blume-20010621-eXene
519    Description:
520    
521    eXene now compiles and (sort of) works again.
522    
523    The library name (for version > 110.33) is $/eXene.cm.
524    
525    I also added an new example in src/eXene/examples/nbody.  See the
526    README file there for details.
527    
528    ----------------------------------------------------------------------
529    Name: Matthias Blume
530    Date: 2001/06/20 16:40:00 EDT
531    Tag: blume-20010620-cml
532    Description:
533    
534    CML now compiles and works again.
535    
536    Libraries (for version > 110.33):
537    
538      $cml/cml.cm            Main CML library.
539      $cml/basis.cm          CML's version of $/basis.cm.
540      $cml/cml-internal.cm   Internal helper library.
541      $cml/core-cml.cm       Internal helper library.
542      $cml-lib/trace-cml.cm  Tracing facility.
543      $cml-lib/smlnj-lib.cm  CML's version of $/smlnj-lib.cm
544    
545    The installer (config/install.sh) has been taught how to properly
546    install this stuff.
547    
548    ----------------------------------------------------------------------
549    Name: Matthias Blume
550    Date: 2001/06/19 17:55:00 EDT
551    Tag: blume-20010619-instantiate
552    Description:
553    
554    This un-breaks the fix for bug 1432.
555    (The bug was originally fixed in 110.9 but I broke it again some
556    time after that.)
557    
558    ----------------------------------------------------------------------
559    Name: Matthias Blume
560    Date: 2001/06/19 17:25:00 EDT
561    Tag: blume-20010619-signals
562    Description:
563    
564    This should (hopefully) fix the long-standing signal handling bug.
565    (The runtime system was constructing a continuation record with an
566    incorrect descriptor which would cause the GC to drop data on the floor...)
567    
568    ----------------------------------------------------------------------
569    Name: Matthias Blume
570    Date: 2001/06/15 15:05:00 EDT
571    Tag: blume-20010615-moresparc
572    Description:
573    
574    Here is a short late-hour update related to Sparc c-calls:
575    
576     -- made handling of double-word arguments a bit smarter
577    
578     -- instruction selection phase tries to collapse certain clumsily
579        constructed ML-Trees; typical example:
580    
581            ADD(ty,ADD(_,e,LI d1),LI d2)  ->  ADD(ty,e,LI(d1+d2))
582    
583        This currently has no further impact on SML/NJ since mlriscGen does
584        not seem to generate such patterns in the first place, and c-calls
585        (which did generate them in the beginning) has meanwhile been fixed
586        so as to avoid them as well.
587    
588    ----------------------------------------------------------------------
589    Name: Matthias Blume
590    Date: 2001/06/15 15:05:00 EDT
591    Tag: blume-20010615-sparc
592    Description:
593    
594    The purpose of this update is to provide an implementation of NLFFI
595    on Sparc machines.
596    
597    Here are the changes in detail:
598    
599       * src/MLRISC/sparc/c-calls/sparc-c-calls.sml is a new file containing
600       the Sparc implementation of the c-calls API.
601       * The Sparc backend of SML/NJ has been modified to uniformely use %fp
602       for accessing the ML frame.  Thus, we have a real frame pointer and
603       can freely modify %sp without need for an omit-frame-ptr phase.
604       The vfp logic in src/compiler/CodeGen/* has been changed to accomodate
605       this case.
606       * ml-nlffigen has been taught to produce code for different architectures
607       and calling conventions.
608       * In a way similar to what was done in the x86 case, the Sparc
609       backend uses its own specific extension to mltree.  (For example,
610       it needs to be able to generate UNIMP instructions which are part
611       of the calling convention.)
612       * ml-nlffi-lib was reorganized to make it more modular (in particular,
613       to make it easier to plug in new machine- and os-dependent parts).
614    
615    There are some other fairly unrelated bug fixes and cleanups as well:
616    
617       * I further hacked the .cm files for MLRISC tools (like MDLGen) so
618       that they properly share their libraries with existing SML/NJ libraries.
619       * I fixed a minor cosmetic bug in CM, supressing certain spurious
620       follow-up error messages.
621       * Updates to CM/CMB documentation.
622    
623    TODO items:
624    
625       * MLRISC should use a different register as its asmTemp on the Sparc.
626         (The current %o2 is a really bad choice because it is part of the
627         calling conventions, so things might interfere in unexpected ways.)
628    
629    ----------------------------------------------------------------------
630    Name: Matthias Blume
631    Date: 2001/06/07
632    Tag: blume-20010607-calls
633    Description:
634    
635    A number of internal changes related to C calls and calling conventions:
636    
637    1. ML-Tree CALL statements now carry a "pops" field.  It indicates the
638       number of bytes popped implicitly (by the callee).  In most cases
639       this field is 0 but on x86/win32 it is some non-zero value.  This
640       is information provided for the benefit of the "omit-frameptr" pass.
641    2. The CALL instruction on the x86 carries a similar "pops" field.
642       The instruction selection phase copies its value from the ML-Tree
643       CALL statement.
644    3. On all other architectures, the instruction selection phase checks
645       whether "pops=0" and complains if not.
646    4. The c-calls implementation for x86 now accepts two calling conventions:
647       "ccall" and "stdcall".  When "ccall" is selected, the caller cleans
648       up after the call and pops is set to 0.  For "stdcall", the caller
649       does nothing, leaving the cleanup to the callee; pops is set to
650       the number of bytes that were pushed onto the stack.
651    5. The cproto decoder (compiler/Semant/types/cproto.sml) now can
652       distinguish between "ccall" and "stdcall".
653    6. The UNIMP instruction has been added to the supported Sparc instruction
654       set. (This is needed for implementing the official C calling convention
655       on this architecture.)
656    7. I fixed some of the .cm files under src/MLRISC/Tools to make them
657       work with the latest CM.
658    
659    ----------------------------------------------------------------------
660    Name: Matthias Blume
661    Date: 2001/06/05 15:10:00 EDT
662    Tag: blume-20010605-cm-index
663    Description:
664    
665    0. The "lambdasplit" parameter for class "sml" in CM has been documented.
666    
667    1. CM can now generate "index files".  These are human-readable files
668       that list on a per-.cm-file basis each toplevel symbol defined or
669       imported.  The location of the index file for
670       <p>/<d>.cm is <p>/CM/INDEX/<d>.cm.
671       To enable index-file generation, set CM.Control.generate_index to true
672       or export an environment-symbol: export CM_GENERATE_INDEX=true.
673    
674       The CM manual has been updated accordingly.
675    
676    2. I made some slight modifications to the c-calls API in MLRISC.
677    
678         a) There is now a callback to support saving/restoring of
679            dedicated but caller-save registers around the actual call
680            instruction.
681         b) One can optionally specify a comment-annotation for the
682            call instruction.
683    
684    3. SML/NJ (mlriscGen.sml) uses this new API for the rawccall primop.
685       (For example, the comment annotation shows the C prototype of
686        the function being called.)
687    
688    ----------------------------------------------------------------------
689    Name: Matthias Blume
690    Date: 2001/06/01 13:30:00 EDT
691    Tag: blume-20010601-nlffi-cleanup
692    Description:
693    
694    This is mostly a cleanup of MLFFI stuff:
695    
696       - some signature files have been put into a more exposed place
697       - the ugly 'f type parameter is gone (simplifies types tremendously!)
698       - ml-nlffigen changed accordingly
699       - tutorial updated
700    
701    Other changes:
702    
703       - author's affiliation in CM manual(s) updated
704       - some more recognized keywords added to Allen's sml.sty
705    
706    ----------------------------------------------------------------------
707    Name: Matthias Blume
708    Date: 2001/05/25 15:30:00 EDT
709    Tag: blume-20010525-iptr
710    Description:
711    
712      - put the official 110.33-README (as it appears on the ftp server) under
713        CVS
714      - fixed a small bug related to incomplete pointer types in
715        ml-nlffigen
716      - small cosmetic change to the ml-nlffi-lib's "arr" type constructor
717        (it does not need the 'f type parameter)
718    
719    ----------------------------------------------------------------------
720    Name: Matthias Blume
721    Date: 2001/05/23 14:30:00 EDT
722    Tag: Release_110_33
723    Description:
724    
725    New version number (110.33).  New bootfiles.
726    
727    ----------------------------------------------------------------------
728    Name: Matthias Blume
729    Date: 2001/05/22 18:06:00 EDT
730    Tag: blume-20010522-targets
731    Description:
732    
733    Made install.sh use file config/targets.customized if it exists, falling
734    back to config/targets if it doesn't.  This way one can have a customized
735    version of the targets file without touching the "real thing", thus
736    eliminating the constant fear of accidentally checking something bogus
737    back into the CVS repository...  (File config/targets.customized must
738    not be added to the repository!)
739    
740    ----------------------------------------------------------------------
741    Name: Matthias Blume
742    Date: 2001/05/22 16:30:00 EDT
743    Tag: blume-20010522-minitut
744    Description:
745    
746    1. Bug fix in ml-nlffigen; now (hopefully) correctly handling
747       struct returns.
748    2. Added src/ml-nlffi-lib/Doc/mini-tutorial.txt.  This is some very
749       incomplete, preliminary documentation for NLFFI.
750    
751    ----------------------------------------------------------------------
752    Name: Matthias Blume
753    Date: 2001/05/14 11:30:00 EDT
754    Tag: blume-20010514-script
755    Description:
756    
757    Some bugs in install script fixed.
758    
759    In addition to that I also made a slight change to the NLFFI API:
760    Functors generated by ml-nlffigen now take the dynamic library as a
761    straight functor argument, not as a suspended one.  (The original
762    functor code used to force the suspension right away anyway, so there
763    was nothing gained by this complication of the interface.)
764    
765    ----------------------------------------------------------------------
766    Name: Matthias Blume
767    Date: 2001/05/11 14:35:00 EDT
768    Tag: blume-20010511-ml-nlffi
769    Description:
770    
771    I finally took the plunge and added my new FFI code to the main
772    repository.  For x86-linux it is now ready for prime-time.
773    
774    There are two new subdirectories of "src":
775    
776      - ml-nlffi-lib:
777           The utility library for programs using the FFI interface.
778           Here is the implementation of $/c.cm and its associated low-level
779           partners $/c-int.cm and $/memory.cm.
780      - ml-nlffigen:
781           A stand-alone program for generating ML glue code from C source
782           code.
783    
784    Building ml-nlffigen requires $/ckit-lib.cm.
785    
786    The config/install.sh script has been updates to do the Right Thing
787    (hopefully).
788    
789    Notice that the source tree for the C-Kit will not be put under "src"
790    but directly under the installation root directory.  (This is the
791    structure that currently exists on the CVS server when you check out
792    module "sml".)  Fortunately, config/install.sh knows about this oddity.
793    
794    Bugs: No documentation yet.
795    
796    ----------------------------------------------------------------------
797    Name: Matthias Blume
798    Date: 2001/05/09 16:35:00 EDT
799    Tag: blume-20010509-cpscontract
800    Description:
801    
802    Fixed a bug in the accounting code in cpsopt/contract.sml.  (The
803    wrapper/unwrapper elimination did not decrement usage counts and some
804    dead variables got overlooked by the dead-up logic.)
805    
806    ----------------------------------------------------------------------
807    Name: Lal George
808    Date: 2001/05/08  17:26:09 EDT
809    Tag: george-20010508-omit-frameptr
810    Description:
811    
812    Changes to implement the omit-frame-pointer optimization to support
813    raw C calls. For now, there is only support on the Intel x86, but
814    other architectures will follow as more experience is gained with this.
815    
816    
817    ----------------------------------------------------------------------
818    Name: Matthias Blume
819    Date: 2001/05/07 14:40:00 EDT
820    Tag: blume-20010507-proxies
821    Description:
822    
823    I made into "proxy libraries" all libraries that qualify for such a
824    change.  (A qualifying library is a library that has another library or
825    groups as its sole member and repeats that member's export list
826    verbatim.  A proxy library avoids this repetition by omitting its export
827    list, effectively inheriting the list that its (only) member exports.
828    See the CM manual for more explanation.)
829    The main effect is that explicit export lists for these libraries
830    do not have to be kepts in sync, making maintenance a bit easier.
831    
832    I also added copyright notices to many .cm-files.
833    
834    Last but not least, I made a new set of bootfiles.
835    
836    ----------------------------------------------------------------------
837    Name: Matthias Blume
838    Date: 2001/05/04 17:00:00 EDT
839    Tag: blume-20010504-cm-lsplit
840    Description:
841    
842    0. John merged pending changes to $/smlnj-lib.cm
843    
844    1. Allen's previous change accidentally backed out of one of Lal's
845       earlier changes.  I undid this mistake (re-introducing Lal's change).
846    
847    2. I used the new topOrder' function from graph-scc.sml (from $/smlnj-lib.cm)
848       within the compiler where applicable.  There is some code simplification
849       because of that.
850    
851    3. The "split" phase (in FLINT) is now part of the default list of phases.
852       Compiler.Control.LambdaSplitting.* can be used to globally control the
853       lambda-splitting (cross-module-inlining) engine.  In addition to that,
854       it can now also be controlled on a per-source basis: CM has been taught
855       a new tool parameter applicable to ML source files.
856    
857       - To turn lambda-splitting off completely:
858            local open Compiler.Control.LambdaSplitting in
859                val _ = set Off
860            end
861       - To make "no lambda-splitting" the global default (but allow per-source
862         overriding); this is the initial setting:
863            local open Compiler.Control.LambdaSplitting in
864                val _ = set (Default NONE)
865            end
866       - To make "lambda-splitting with aggressiveness a" the global default
867         (and allow per-source overriding):
868            local open Compiler.Control.LambdaSplitting in
869                val _ = set (Default (SOME a))
870            end
871    
872       - To turn lambda-splitting off for a given ML souce file (say: a.sml)
873         write (in the respective .cm-file):
874            a.sml (lambdasplitting:off)
875       - To turn lambda-splitting for a.sml on with minimal aggressiveness:
876            a.sml (lambdasplitting:on)
877       - To turn lambda-splitting for a.sml on with aggressiveness <a> (where
878         <a> is a decimal non-negative integer):
879            a.sml (lambdasplitting:<a>)
880       - To turn lambda-splitting for a.sml on with maximal aggressiveness:
881            a.sml (lambdasplitting:infinity)
882       - To use the global default for a.sml:
883            a.sml (lambdasplitting:default)
884         or simply
885            a.sml
886    
887    ----------------------------------------------------------------------
888    Name: Allen Leung
889    Date: 2001/05/04 01:57:00 EDT
890    Tag: leunga-20010504-sync
891    Description:
892    
893      MLRISC features.
894    
895      1. Fix to CMPXCHG instructions.
896      2. Changed RA interface to allow annotations in callbacks.
897      3. Added a new method to the stream interface to allow annotations updates.
898    
899    ----------------------------------------------------------------------
900    Name: Matthias Blume
901    Date: 2001/05/01 11:45:00 EDT
902    Tag: blume-20010501-pcedittmp
903    Description:
904    
905    Changed install.sh to use the current working directory instead of
906    /usr/tmp for a temporary file (pcedittmp).  The previous choice
907    of /usr/tmp caused trouble with MacOS X because of file premission
908    problems.
909    
910    ----------------------------------------------------------------------
911    Name: Matthias Blume
912    Date: 2001/04/20 11:10:00 EDT
913    Tag: blume-20010420-inMLflag
914    Description:
915    
916     - added vp_limitPtrMask to vproc-state.h
917       (for use by the raw-C-calls mechanism to implement proper interrupt
918        handling)
919     - made the ML compiler aware of various data-structure offsets so it
920       can generate code for accessing the vp_inML flag and vp_limitPtrMask
921     - tweaked mlriscGen.sml to have it emit interrupt-handling code for
922       raw C-calls
923    
924    ----------------------------------------------------------------------
925    Name: Lal George
926    Date: 2001/04/20 09:15:28 EDT
927    Tag: george-20010420-macosX
928    Description:
929    
930     - Changes to port to Mac OS X; Darwin.
931    
932     - In the process I found that sqrt was broken on the PPC, because the
933       fsqrt instruction is not implemented.
934    
935    ----------------------------------------------------------------------
936    Name: Matthias Blume
937    Date: 2001/04/18 12:45:00 EDT
938    Tag: blume-20010418-ccalls
939    Description:
940    
941     - fixed two off-by-4 errors in the x86-specific c-calls implementation
942       (this bug prevented structure arguments containing pointers from being
943        passed correctly)
944     - changed the raw-C-call code in mlriscGen.sml in such a way that
945       structure arguments are represented as a pointer to the beginning
946       of the structure (instead of having a series of synthesized arguments,
947       one for each structure member)
948    
949     - made makeml script's verbosity level configurable via environment
950       variable (MAKEML_VERBOSITY)
951    
952     - eliminated placeholder implementations for f32l, w16s, i16s, and f32s
953       in rawmem-x86.sml; we are now using the real thing
954    
955    ----------------------------------------------------------------------
956    Name: Matthias Blume
957    Date: 2001/03/22 16:25:00 EST
958    Tag: blume-20010322-bootfiles
959    Description:
960    
961    Created a new set of bootfiles (for your automatic installation convenience).
962    
963    ----------------------------------------------------------------------
964    Name: Matthias Blume
965    Date: 2001/03/22 15:10:00 EST
966    Tag: blume-20010322-rawmem-parcm
967    Description:
968    
969    1. All "raw memory access" primitives for the new FFI are implemented now
970       (at least on the x86).
971    2. Some further cleanup of CM's parallel make mechanism.
972    
973    ----------------------------------------------------------------------
974    Name: Matthias Blume
975    Date: 2001/03/19 17:53:00 EST
976    Tag: blume-20010319-parallel
977    Description:
978    
979    Parallel make (using compile servers) now works again.
980    
981    To this end, CM.stabilize and CMB.make have been modified to work in
982    two passes when compile servers are attached:
983       1. Compile everything, do not perform stabilization; this pass
984          uses compile servers
985       2. Stabilize everything; this pass does not use compile servers
986    If there are no compile servers, the two passes are combined into one
987    (as before).  Splitting the passes increases the inherent parallelism
988    in the dependency graph because the entire graph including all
989    libraries is available at the same time.  This, in turn, improves
990    server utilization.  The downside is that the master process will
991    have to do some extra work after compilation is done (because for
992    technical reasons it must re-read all the binfiles during stabilization).
993    
994    ----------------------------------------------------------------------
995    Name: Matthias Blume
996    Date: 2001/03/16 12:22:00 EST
997    Tag: blume-20010316-bootfiles
998    Description:
999    
1000    Created a new set of bootfiles (for your automatic installation convenience).
1001    
1002    ----------------------------------------------------------------------
1003    Name: Matthias Blume
1004    Date: 2001/03/16 11:00:00 EST
1005    Tag: blume-20010316-MLTREE-fixup
1006    Description:
1007    
1008    This is a minor fixup for an (untagged) earlier commit by Allen.
1009    (A file was missing).
1010    
1011    ----------------------------------------------------------------------
1012    Name: Allen Leung
1013    Date: Mon Mar  5 18:54:57 EST 2001
1014    Tag: leunga-20010305-cut-support
1015    
1016    1. New support for alternative control-flow in MLTREE.
1017       Currently we support
1018    
1019          FLOW_TO(CALL ...., [k1,...,kn])
1020    
1021       This is needed for 'cuts to' in C-- and try/handle-like constructs
1022       in Moby
1023    
1024       New assembler flag "asm-show-cutsto" to turn on control-flow debugging.
1025    
1026    2. Register Allocator
1027    
1028       Changes in interface [from Fermin, John]
1029    
1030    3. Alpha 8-bit SLL support [Fermin]
1031    
1032    4. All architectures
1033    
1034       A new module (ClusterExpandCopies) for expanding parallel copies.
1035    
1036    ----------------------------------------------------------------------
1037    Name: Allen Leung
1038    Date: 2001/02/27 23:07:00 EST
1039    Tag: leunga-20010227-minor-stuff
1040    
1041    1. Alpha bug fix for CMOVNE
1042    2. Handle mltree COND(..,FCMP ...,...)
1043    3. Bug fix in simplifier
1044    
1045    ----------------------------------------------------------------------
1046    Name: Matthias Blume
1047    Date: 2001/01/30 17:50:00 EST
1048    Tag: blume-20010130-sync
1049    Description:
1050    
1051    This is just a minor update to sync my devel branch with the main brach.
1052    The only visible change is the addition of some README files.
1053    
1054    ----------------------------------------------------------------------
1055    Name: Matthias Blume
1056    Date: 2001/01/12 23:30:00 JST
1057    Tag: blume-20010112-bootfiles
1058    Description:
1059    
1060    Made a new set of bootfiles that goes with the current state of the
1061    repository.
1062    
1063    ----------------------------------------------------------------------
1064    Name: Matthias Blume
1065    Date: 2001/01/12 21:20:00 JST
1066    Tag: blume-20010112-sync
1067    Description:
1068    
1069    I am just flushing out some minor changes that had accumulated in
1070    my private branch in order to sync with the main tree.  (This is
1071    mainly because I had CVS trouble when trying to merge _into_ my
1072    private branch.)
1073    
1074    Most people should be completely unaffected by this.
1075    
1076    ----------------------------------------------------------------------
1077    Name: Allen Leung
1078    Date: Thu Jan 11 21:03:00 EST 2001
1079    Tag: leunga-20010111-labexp=mltree
1080    Description:
1081    
1082    1.  Removed the type LabelExp and replace it by MLTree.
1083    2.  Rewritten mltree-simplify with the pattern matcher tool.
1084    3.  There were some bugs in alpha code generator which would break
1085        64-bit code generation.
1086    4.  Redo the tools to generate code with the
1087    5.  The CM files in MLRISC (and in src/system/smlnj/MLRISC)
1088        are now generated by perl scripts.
1089    
1090    ----------------------------------------------------------------------
1091    Name: Matthias Blume
1092    Date: 2001/01/10 21:55:00 JST
1093    Tag: blume-20010110-rcc
1094    Description:
1095    
1096    The RCC stuff now seems to work (but only on the x86).
1097    This required hacking of the c-calls interface (and -implementation) in
1098    MLRISC.
1099    
1100    Normal compiler users should be unaffected.
1101    
1102    ----------------------------------------------------------------------
1103    Name: Matthias Blume
1104    Date: 2001/01/09 01:20:00 JST
1105    Tag: blume-20010109-rcc
1106    Description:
1107    
1108    This is a fairly big patch, flushing out a large number of pending
1109    changes that I made to my development copy over the last couple of days.
1110    
1111    Of practical relevance at this moment is a workaround for a pickling
1112    bug that Allen ran into the other day.  The cause of the bug itself is
1113    still unknown and it might be hard to fix it properly, but the
1114    workaround has some merits of its own (namely somewhat reducing pickling
1115    overhead for certain libraries).  Therefore, I think this solution should
1116    be satisfactory at this time.
1117    
1118    The rest of the changes (i.e., the vast majority) has to do with my
1119    ongoing efforts of providing direct support for C function calls from
1120    ML.  At the moment there is a new primop "RAW_CCALL", typing magic
1121    in types/cproto.sml (invoked from FLINT/trans/translate.sml), a new
1122    case in the FLINT CPS datatype (RCC), changes to cps/convert.sml to
1123    translate uses of RAW_CCALL into RCC, and changes to mlriscGen.sml to
1124    handle RCC.
1125    
1126    The last part (the changes to mlriscGen.sml) are still known to be
1127    wrong on the x86 and not implemented on all other architectures.  But
1128    the infrastructure is in place. I had to change a few functor
1129    signatures in the backend to be able to route the CCalls interface
1130    from MLRISC there, and I had to specialize the mltree type (on the
1131    x86) to include the necessary extensions. (The extensions themselves
1132    were already there and redy to go in MLRISC/x86).
1133    
1134    Everything should be very happy as soon as someone helps me with
1135    mlriscGen.sml...
1136    
1137    In any case, nothing of this should matter to anyone as long as the
1138    new primop is not being used (which is going to be the case unless you
1139    find it where I hid it :). The rest of the compiler is completely
1140    unaffected.
1141    
1142    ----------------------------------------------------------------------
1143    Name: Matthias Blume
1144    Date: 2001/01/05 00:30:00 JST
1145    Tag: blume-20010105-primops
1146    Description:
1147    
1148    Added some experimental support for work that I am doing right now.
1149    These changes mostly concern added primops, but there is also a new
1150    experimental C library in the runtime system (but currently not enabled
1151    anywhere except on Linux/X86).
1152    
1153    In the course of adding primops (and playing with them), I discovered that
1154    Zhong's INL_PRIM hack (no type info for certain primops) was, in fact, badly
1155    broken.  (Zhong was very right he labeled this stuff as "major gross hack".)
1156    To recover, I made type information in INL_PRIM mandatory and changed
1157    prim.sml as well as built-in.sml accordingly.  The InLine structure now
1158    has complete, correct type information (i.e., no bottom types).
1159    
1160    Since all these changes mean that we need new binfiles, I also bumped the
1161    version number to 110.32.1.
1162    
1163    ----------------------------------------------------------------------
1164    Name: Matthias Blume
1165    Date: 2000/12/30 22:10:00 JST
1166    Tag: blume-20001230-various
1167    Description:
1168    
1169    Added proxy libraries for MLRISC and let MLRISC libraries refer
1170    to each other using path anchors.  (See CM manual for explanation.)
1171    
1172    Updated CM documentation.
1173    
1174    Fixed some bugs in CM.
1175    
1176    Implemented "proxy" libraries (= syntactic sugar for CM).
1177    
1178    Added "-quiet" option to makeml and changed runtime system accordingly.
1179    
1180    Added cleanup handler for exportML to reset timers and compiler stats.
1181    
1182    ----------------------------------------------------------------------
1183    Name: Lal George
1184    Date: 2000/12/22 22:22:58 EST 2000
1185    Tag: Release_110_32
1186    Description:
1187    
1188            Infinite precision used throughout MLRISC.
1189            see MLRISC/mltree/machine-int.sig
1190    
1191    ----------------------------------------------------------------------
1192    Name: Matthias Blume
1193    Date: 2000/12/22 23:16:00 JST
1194    Tag: blume-20001222-warn
1195    Description:
1196    
1197    Corrected wording and formatting of some CM warning message which I
1198    broke in my previous patch.
1199    
1200    ----------------------------------------------------------------------
1201    Name: Matthias Blume
1202    Date: 2000/12/22 21:20:00 JST
1203    Tag: blume-20001222-anchorenv
1204    Description:
1205    
1206    Fixed CM's handling of anchor environments in connection with CMB.make.
1207    
1208    ----------------------------------------------------------------------
1209    Name: Matthias Blume
1210    Date: 2000/12/22 13:15:00 JST
1211    Tag: blume-20001222-cleanup
1212    Description:
1213    
1214    Removed src/cm/ffi which does not (and did not) belong here.
1215    
1216    ----------------------------------------------------------------------
1217    Name: Matthias Blume
1218    Date: 2000/12/21 23:55:00 JST
1219    Tag: blume-20001221-exn
1220    Description:
1221    
1222    Probably most important: CM no longer silently swallows all exceptions
1223    in the compiler.
1224    Plus: some other minor CM changes.  For example, CM now reports some
1225    sizes for generated binfiles (code, data, envpickle, lambdapickle).
1226    
1227    ----------------------------------------------------------------------
1228    Name: Matthias Blume
1229    Date: 2000/12/15 00:01:05 JST
1230    Tag: blume-20001215-dirtool
1231    Description:
1232    
1233    - "dir" tool added.
1234    - improvements and cleanup to Tools structure
1235    - documentation updates
1236    
1237    ----------------------------------------------------------------------
1238    Name: Allen Leung
1239    Date: Thu Dec 14 03:45:24 EST 2000
1240    Description:
1241    Tag:  leunga-20001214-int-inf
1242    Description:
1243    
1244       In IntInf, added these standard functions, which are missing from our
1245    implementation:
1246    
1247        andb : int * int -> int
1248        xorb : int * int -> int
1249        orb  : int * int -> int
1250        notb : int -> int
1251         <<   : int * word -> int
1252        ~>>  : int * word -> int
1253    
1254       Not tested, I hope they are correct.
1255    
1256    ----------------------------------------------------------------------
1257    Name: Allen Leung
1258    Date: Fri Dec  8 19:23:26 EST 2000
1259    Description:
1260    Tag:  leunga-20001208-nowhere
1261    Description:
1262    
1263      Slight improvements to the 'nowhere' tool to handle OR-patterns,
1264    to generate better error messages etc.  Plus a brief manual.
1265    
1266    ----------------------------------------------------------------------
1267    Name: Lal George
1268    Date: 2000/12/08 09:54:02 EST 2000
1269    Tag: Release_110_31
1270    Description:
1271    
1272    - Version 110.31
1273    ----------------------------------------------------------------------
1274    Name: Allen Leung
1275    Date: Thu Dec  7 22:01:04 EST 2000
1276    Tag:  leunga-20001207-cell-monster-hack
1277    Description:
1278    
1279    Major MLRISC internal changes.  Affect all clients.
1280    Summary:
1281    
1282    1.  Type CELLS.cell = int is now replaced by a datatype.
1283        As a result, the old regmap is now gone.  Almost all interfaces
1284        in MLRISC change as a consequence.
1285    
1286    2.  A new brand version of machine description tool (v3.0) that generates
1287        modules expecting the new interface.  The old version is removed.
1288    
1289    3.  The RA interface has been further abstracted into two new functors.
1290        RISC_RA and X86RA.  These functors have much simpler interfaces.
1291        [See also directory MLRISC/demo.]
1292    
1293    4.  Some other new source->source code generation tools are available:
1294    
1295        a. MLRISC/Tools/RewriteGen -- generate rewriters from rules.
1296        b. MLRISC/Tools/WhereGen -- expands conditional pattern matching rules.
1297           I use this tool to generate the peephole optimizers---with the new
1298           cell type changes, peephole rules are becoming difficult to write
1299           without conditional pattern matching.
1300    
1301    5.  More Intmap -> IntHashTable change.  Previous changes by Matthias didn't
1302        cover the entire MLRISC source tree so many things broke.
1303    
1304    6.  CM files have been moved to the subdirectory MLRISC/cm.
1305        They are moved because there are a lot of them and they clutter up the
1306        root dir.
1307    
1308    7.  More detailed documentation to come...
1309    
1310        NOTE: To rebuild from 110.30 (ftp distribution), you'll have to do
1311        a makeml -rebuild first.  This is because of other other
1312        changes that Matthias has made (see below).
1313    
1314    
1315    ----------------------------------------------------------------------
1316    Name: Matthias Blume
1317    Date: 2000/11/30 23:12:00 JST
1318    Tag: blume-20001130-filereorg
1319    Description:
1320    
1321    Some manual updates and some file reorganizations in CM.
1322    
1323    ----------------------------------------------------------------------
1324    Name: Matthias Blume
1325    Date: 2000/11/24 17:45:00 JST
1326    Tag: blume-20001124-link
1327    Description:
1328    
1329    Drastically improved link traversal code for the case that the dynamic
1330    value was already loaded at bootstrap time.  As a result, CM and CMB
1331    now both load blazingly fast -- even on a very slow machine.  Also,
1332    memory consumption has been further reduced by this.
1333    
1334    Warning: The format of the PIDMAP file has changed.  THerefore, to
1335    bootstrap you have to do this:
1336    
1337    1. Run CMB.make
1338    2. Make a symbolic link for the boot directory:
1339         ln -s sml.boot.ARCH-OS xxx
1340    3. "Rebuild" the boot directory:
1341         ./makeml -boot xxx -rebuild sml ; rm xxx
1342    4. Boot normally:
1343          ./makeml
1344    
1345    ----------------------------------------------------------------------
1346    Name: Matthias Blume
1347    Date: 2000/11/21 21:20:00 JST
1348    Tag: blume-20001121-tools
1349    Description:
1350    
1351    Continued hacking on autoloading problem -- with success this time.
1352    Also changed tool-plugin mechanism.  See new CM manual.
1353    
1354    ----------------------------------------------------------------------
1355    Name: Matthias Blume
1356    Date: 2000/11/19 14:30:00 JST
1357    Tag:  blume-20001119-autoload
1358    Description:
1359    
1360    Some hacking to make autoloading faster.  Success for CMB, no success
1361    so far for CM.  There is a reduced structure CM' that autoloads faster.
1362    (This is a temporary, non-documented hack to be eliminated again when
1363    the general problem is solved.)
1364    
1365    ----------------------------------------------------------------------
1366    Name: Matthias Blume
1367    Date: 2000/11/17 14:10:00 JST
1368    Tag: blume-20001117-pickle-lib
1369    Description:
1370    
1371    1. Eliminated comp-lib.cm
1372    2. Made pickle-lib.cm
1373    3. Eliminated all uses of intset.sml (from comp-lib.cm)
1374    4. Replaced all uses of intmap.{sig,sml} (from comp-lib.cm) with
1375       equivalent constructs from smlnj-lib.cm (INtHashTable).
1376    5. Point 4. also goes for those uses of intmap.* in MLRISC.
1377       Duplicated intmap modules thrown out.
1378    6. Hunted down all duplicated SCC code and replaced it with
1379       equivalent stuff (GraphSCCFn from smlnj-lib.cm).
1380    7. Rewrote Feedback module.
1381    8. Moved sortedlist.sml into viscomp-lib.cm.  Eventually it
1382       should be thrown out and equivalent modules from smlnj-lib.cm
1383       should be used (IntRedBlackSet, IntListSet, ...).
1384    
1385    Confirmed that compiler compiles to fixpoint.
1386    
1387    ----------------------------------------------------------------------
1388    Name: Allen Leung
1389    Date: 2000/11/10 18:00:00
1390    Tag: leunga-20001110-new-x86-fp
1391    
1392    A new x86 floating point code generator has been added.
1393    By default this is turned off.  To turn this on, do:
1394    
1395        CM.autoload "$smlnj/compiler.cm";
1396        Compiler.Control.MLRISC.getFlag "x86-fast-fp" := true;
1397    
1398    Changes:
1399    
1400    1.  Changed FTAN to FPTAN so that the assembly output is correct.
1401    2.  Changed the extension callback for FTANGENT to generate:
1402    
1403              fptan
1404              fstp  %st(0)
1405        instead of
1406              fptan
1407              fstpl ftempmem
1408    
1409    3.  Numerous assembly fixes for x86.
1410    
1411    5.  Cleaned up the machine code output module x86/x86MC.sml and added
1412        support for a whole bunch of instructions and addressing modes:
1413    
1414          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st, %st(n)
1415          faddp/fsubp/fsubrp/fmulp/fdivp/fdivrp  %st, %st(n)
1416          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st(n), %st
1417          fiadd/fisub/fisubr/fimul/fidiv/fidivr mem
1418          fxch %st(n)
1419          fld %st(n)
1420          fst %st(n)
1421          fst mem
1422          fstp %st(n)
1423          fucom %st(n)
1424          fucomp %st(n)
1425    
1426        All these are now generated when the fast fp mode is turned on.
1427    
1428    6.  Removed the dedicated registers %st(0), ..., %st(7) from X86CpsRegs
1429    
1430    ----------------------------------------------------------------------
1431    Name: Matthias Blume
1432    Date: 2000/11/09 11:20:00 JST
1433    Tag: blume-20001109-scc
1434    Description:
1435    
1436    Eliminated some code duplication:
1437    
1438    1. Added "where" clause to GraphSCCFn in SML/NJ Library.
1439       (Otherwise the functor is useless.)
1440    2. Used GraphSCCFn where SCCUtilFun was used previously.
1441    3. Got rid of SCCUtilFun (in comp-lib.cm).
1442    
1443    ----------------------------------------------------------------------
1444    Name: Lal George
1445    Date: 2000/11/06 09:02:21 EST 2000
1446    Tag: Release_110_30
1447    Description:
1448    
1449    - Version 110.30
1450    ----------------------------------------------------------------------
1451    Name: Matthias Blume
1452    Date: 2000/11/04 14:45:00
1453    Tag: blume-20001104-mlbuild
1454    Description:
1455    
1456    - Made ml-build faster on startup.
1457    - Documentation fixes.
1458    
1459    ----------------------------------------------------------------------
1460    Name: Matthias Blume
1461    Date: 2000/11/02 17:00:00 JST
1462    Tag: blume-20001102-condcomp
1463    Description:
1464    
1465    - Small tweaks to pickler -- new BOOTFILES!
1466    - Version bumped to 110.29.2.
1467    - Added conditional compilation facility to init.cmi (see comment there).
1468    ----------------------------------------------------------------------
1469    Name: Allen Leung
1470    Date: 2000/10/23 19:31:00
1471    Tag: leunga-20001023-demo-ra
1472    
1473    1. Minor RA changes that improves spilling on x86 (affects Moby and C-- only)
1474    2. Test programs for the graph library updated
1475    3. Some new MLRISC demo programs added
1476    
1477    ----------------------------------------------------------------------
1478    Name: Matthias Blume
1479    Date: 2000/08/31 22:15:00 JST
1480    Tag: blume-20001017-errmsg
1481    Description:
1482    
1483    More error message grief: Where there used to be no messages, there
1484    now were some that had bogus error regions.  Fixed.
1485    
1486    ----------------------------------------------------------------------
1487    Name: Matthias Blume
1488  Date: 2000/08/31 17:30:00 JST  Date: 2000/08/31 17:30:00 JST
1489  Tag: blume-20001017-v110p29p1  Tag: blume-20001017-v110p29p1
1490  Description:  Description:
# Line 1511  Line 2982 
2982       elaborator). There were a lot of changes during my "linkpath" trials       elaborator). There were a lot of changes during my "linkpath" trials
2983       that could have been reverted to their original state but weren't.       that could have been reverted to their original state but weren't.
2984       Please, don't be too harsh on me for messing with this code a bit more       Please, don't be too harsh on me for messing with this code a bit more
2985       than what was strictly necessary...  (I _did_ resist the tempation       than what was strictly necessary...  (I _did_ resist the temptation
2986       of doing any "global reformatting" to avoid an untimely death at       of doing any "global reformatting" to avoid an untimely death at
2987       Dave's hands. :)       Dave's hands. :)
2988    

Legend:
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