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revision 677, Mon Jun 26 00:56:56 2000 UTC revision 749, Fri Dec 8 15:16:36 2000 UTC
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12  Tag: <post-commit CVS tag>  Tag: <post-commit CVS tag>
13  Description:  Description:
14  ----------------------------------------------------------------------  ----------------------------------------------------------------------
15    Name: Lal George
16    Date: 2000/12/08 09:54:02 EST 2000
17    Tag: Release_110_31
18    Description:
19    
20    - Version 110.31
21    ----------------------------------------------------------------------
22    Name: Allen Leung
23    Date: Thu Dec  7 22:01:04 EST 2000
24    Tag:  leunga-20001207-cell-monster-hack
25    Description:
26    
27    Major MLRISC internal changes.  Affect all clients.
28    Summary:
29    
30    1.  Type CELLS.cell = int is now replaced by a datatype.
31        As a result, the old regmap is now gone.  Almost all interfaces
32        in MLRISC change as a consequence.
33    
34    2.  A new brand version of machine description tool (v3.0) that generates
35        modules expecting the new interface.  The old version is removed.
36    
37    3.  The RA interface has been further abstracted into two new functors.
38        RISC_RA and X86RA.  These functors have much simpler interfaces.
39        [See also directory MLRISC/demo.]
40    
41    4.  Some other new source->source code generation tools are available:
42    
43        a. MLRISC/Tools/RewriteGen -- generate rewriters from rules.
44        b. MLRISC/Tools/WhereGen -- expands conditional pattern matching rules.
45           I use this tool to generate the peephole optimizers---with the new
46           cell type changes, peephole rules are becoming difficult to write
47           without conditional pattern matching.
48    
49    5.  More Intmap -> IntHashTable change.  Previous changes by Matthias didn't
50        cover the entire MLRISC source tree so many things broke.
51    
52    6.  CM files have been moved to the subdirectory MLRISC/cm.
53        They are moved because there are a lot of them and they clutter up the
54        root dir.
55    
56    7.  More detailed documentation to come...
57    
58        NOTE: To rebuild from 110.30 (ftp distribution), you'll have to do
59        a makeml -rebuild first.  This is because of other other
60        changes that Matthias has made (see below).
61    
62    
63    ----------------------------------------------------------------------
64    Name: Matthias Blume
65    Date: 2000/11/30 23:12:00 JST
66    Tag: blume-20001130-filereorg
67    Description:
68    
69    Some manual updates and some file reorganizations in CM.
70    
71    ----------------------------------------------------------------------
72    Name: Matthias Blume
73    Date: 2000/11/24 17:45:00 JST
74    Tag: blume-20001124-link
75    Description:
76    
77    Drastically improved link traversal code for the case that the dynamic
78    value was already loaded at bootstrap time.  As a result, CM and CMB
79    now both load blazingly fast -- even on a very slow machine.  Also,
80    memory consumption has been further reduced by this.
81    
82    Warning: The format of the PIDMAP file has changed.  THerefore, to
83    bootstrap you have to do this:
84    
85    1. Run CMB.make
86    2. Make a symbolic link for the boot directory:
87         ln -s sml.boot.ARCH-OS xxx
88    3. "Rebuild" the boot directory:
89         ./makeml -boot xxx -rebuild sml ; rm xxx
90    4. Boot normally:
91          ./makeml
92    
93    ----------------------------------------------------------------------
94    Name: Matthias Blume
95    Date: 2000/11/21 21:20:00 JST
96    Tag: blume-20001121-tools
97    Description:
98    
99    Continued hacking on autoloading problem -- with success this time.
100    Also changed tool-plugin mechanism.  See new CM manual.
101    
102    ----------------------------------------------------------------------
103    Name: Matthias Blume
104    Date: 2000/11/19 14:30:00 JST
105    Tag:  blume-20001119-autoload
106    Description:
107    
108    Some hacking to make autoloading faster.  Success for CMB, no success
109    so far for CM.  There is a reduced structure CM' that autoloads faster.
110    (This is a temporary, non-documented hack to be eliminated again when
111    the general problem is solved.)
112    
113    ----------------------------------------------------------------------
114    Name: Matthias Blume
115    Date: 2000/11/17 14:10:00 JST
116    Tag: blume-20001117-pickle-lib
117    Description:
118    
119    1. Eliminated comp-lib.cm
120    2. Made pickle-lib.cm
121    3. Eliminated all uses of intset.sml (from comp-lib.cm)
122    4. Replaced all uses of intmap.{sig,sml} (from comp-lib.cm) with
123       equivalent constructs from smlnj-lib.cm (INtHashTable).
124    5. Point 4. also goes for those uses of intmap.* in MLRISC.
125       Duplicated intmap modules thrown out.
126    6. Hunted down all duplicated SCC code and replaced it with
127       equivalent stuff (GraphSCCFn from smlnj-lib.cm).
128    7. Rewrote Feedback module.
129    8. Moved sortedlist.sml into viscomp-lib.cm.  Eventually it
130       should be thrown out and equivalent modules from smlnj-lib.cm
131       should be used (IntRedBlackSet, IntListSet, ...).
132    
133    Confirmed that compiler compiles to fixpoint.
134    
135    ----------------------------------------------------------------------
136    Name: Allen Leung
137    Date: 2000/11/10 18:00:00
138    Tag: leunga-20001110-new-x86-fp
139    
140    A new x86 floating point code generator has been added.
141    By default this is turned off.  To turn this on, do:
142    
143        CM.autoload "$smlnj/compiler.cm";
144        Compiler.Control.MLRISC.getFlag "x86-fast-fp" := true;
145    
146    Changes:
147    
148    1.  Changed FTAN to FPTAN so that the assembly output is correct.
149    2.  Changed the extension callback for FTANGENT to generate:
150    
151              fptan
152              fstp  %st(0)
153        instead of
154              fptan
155              fstpl ftempmem
156    
157    3.  Numerous assembly fixes for x86.
158    
159    5.  Cleaned up the machine code output module x86/x86MC.sml and added
160        support for a whole bunch of instructions and addressing modes:
161    
162          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st, %st(n)
163          faddp/fsubp/fsubrp/fmulp/fdivp/fdivrp  %st, %st(n)
164          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st(n), %st
165          fiadd/fisub/fisubr/fimul/fidiv/fidivr mem
166          fxch %st(n)
167          fld %st(n)
168          fst %st(n)
169          fst mem
170          fstp %st(n)
171          fucom %st(n)
172          fucomp %st(n)
173    
174        All these are now generated when the fast fp mode is turned on.
175    
176    6.  Removed the dedicated registers %st(0), ..., %st(7) from X86CpsRegs
177    
178    ----------------------------------------------------------------------
179    Name: Matthias Blume
180    Date: 2000/11/09 11:20:00 JST
181    Tag: blume-20001109-scc
182    Description:
183    
184    Eliminated some code duplication:
185    
186    1. Added "where" clause to GraphSCCFn in SML/NJ Library.
187       (Otherwise the functor is useless.)
188    2. Used GraphSCCFn where SCCUtilFun was used previously.
189    3. Got rid of SCCUtilFun (in comp-lib.cm).
190    
191    ----------------------------------------------------------------------
192    Name: Lal George
193    Date: 2000/11/06 09:02:21 EST 2000
194    Tag: Release_110_30
195    Description:
196    
197    - Version 110.30
198    ----------------------------------------------------------------------
199    Name: Matthias Blume
200    Date: 2000/11/04 14:45:00
201    Tag: blume-20001104-mlbuild
202    Description:
203    
204    - Made ml-build faster on startup.
205    - Documentation fixes.
206    
207    ----------------------------------------------------------------------
208    Name: Matthias Blume
209    Date: 2000/11/02 17:00:00 JST
210    Tag: blume-20001102-condcomp
211    Description:
212    
213    - Small tweaks to pickler -- new BOOTFILES!
214    - Version bumped to 110.29.2.
215    - Added conditional compilation facility to init.cmi (see comment there).
216    ----------------------------------------------------------------------
217    Name: Allen Leung
218    Date: 2000/10/23 19:31:00
219    Tag: leunga-20001023-demo-ra
220    
221    1. Minor RA changes that improves spilling on x86 (affects Moby and C-- only)
222    2. Test programs for the graph library updated
223    3. Some new MLRISC demo programs added
224    
225    ----------------------------------------------------------------------
226    Name: Matthias Blume
227    Date: 2000/08/31 22:15:00 JST
228    Tag: blume-20001017-errmsg
229    Description:
230    
231    More error message grief: Where there used to be no messages, there
232    now were some that had bogus error regions.  Fixed.
233    
234    ----------------------------------------------------------------------
235    Name: Matthias Blume
236    Date: 2000/08/31 17:30:00 JST
237    Tag: blume-20001017-v110p29p1
238    Description:
239    
240    I made a version 110.29.1 with new bootfiles.
241    
242    Changes:  Modified pickler/unpickler for faster and leaner unpickling.
243              CM documentation changes and a small bugfix in CM's error reporting.
244    
245    ----------------------------------------------------------------------
246    Name: Lal George
247    Date: 2000/09/27 14:42:35 EDT
248    Tag: george-20000927-nodestatus
249    Description:
250    
251    Changed the type of the nodestatus, so that:
252    
253            SPILLED(~1)             is now SPILLED
254            SPILLED(m) where m>=0   is now MEMREG(m)
255            SPILLED(s) where s<~1   is now SPILL_LOC(~s)
256    
257    ----------------------------------------------------------------------
258    Name: Matthias Blume
259    Date: 2000/09/07 14:45:00 JST
260    Tag: blume-20000907-cmerrmsg
261    Description:
262    
263    Small tweak to CM to avoid getting ML syntax error messages twice.
264    
265    ----------------------------------------------------------------------
266    Name: Matthias Blume
267    Date: 2000/08/31 18:00:00 JST
268    Tag: blume-20000831-cvsbootfiles
269    Description:
270    
271    New URL for boot files (because the 110.29 files on the BL server do
272    now work correctly with my updated install scripts for yacc and lex).
273    
274    ----------------------------------------------------------------------
275    Name: Matthias Blume
276    Date: 2000/08/08 12:33:00 JST
277    Tag: blume-20000808-manual
278    Description:
279    
280    Tiny update to CM manual.
281    
282    ----------------------------------------------------------------------
283    Name: Allen Leung
284    Date: 2000/08/7 19:31:00
285    Tag: leunga-20000807-a-whole-bunch-of-stuff
286    
287      Moby, C--, SSA, x86, machine descriptions etc.  Should only affect C--
288    and Mobdy.
289    
290    1.  x86
291    
292       a.  Fixes to peephole module by John and Dan.
293       b.  Assembly fix to SETcc by Allen.
294       c.  Fix to c-call by John.
295       d.  Fix to spilling by John.  (This one deals with the missing FSTPT case)
296       e.  Instruction selection optimization to SETcc as suggested by John.
297    
298           For example,
299    
300            MV(32, x, COND(32, CMP(32, LT, a, b), LI 1, LI 0))
301    
302           should generate:
303    
304            MOVL a, x
305            SUBL b, x
306            SHRL 31, x
307    
308    2.  IR stuff
309    
310         A bunch of new DJ-graph related algorithms added.  These
311         speed up SSA construction.
312    
313    3.  SSA + Scheduling
314    
315         Added code for SSA and scheduling to the repository
316    
317    ----------------------------------------------------------------------
318    Name: Lal George
319    Date: 2000/07/27 11:53:14 EDT
320    
321    Tag: lal-20000727-linux-ppc
322    Description:
323    
324     Made changes to support Linux PPC.
325     p.s. I have confirmation that the 110.29 boot files work fine.
326    
327    ----------------------------------------------------------------------
328    Name: Matthias Blume
329    Date: 2000/07/27 17:40:00 JST
330    Tag: blume-20000727-scripts
331    Description:
332    
333    !!!! WARNING !!!!
334    You must recompile the runtime system!
335    !!!! WARNING !!!!
336    
337    This is basically another round of script-enhancements:
338    
339    1. sml, ml-build, and ml-makedepend accept options -D and -U to define
340       and undefine CM preprocessor symbols.
341    
342    2. ml-build avoids generating a new heap image if it finds that the
343       existing one is still ok.  (The condition is that no ML file had to
344       be recompiled and all ML files are found to be older that the heap
345       file.)
346    
347       To make this work smoothly, I also hacked the runtime system as
348       well as SMLofNJ.SysInfo to get access to the heap image suffix
349       (.sparc-solaris, ...) that is currently being used.
350    
351       Moreover, the signature of CM.mk_standalone has changed.  See the
352       CM manual.
353    
354    3. ml-makedepend accepts additional options -n, -a, and -o.  (See the
355       CM manual for details.)
356    
357    4. More CM manual updates:
358        - all of the above has been documented.
359        - there is now a section describing the (CM-related) command line
360          arguments that are accepted by the "sml" command
361    
362    ----------------------------------------------------------------------
363    Name: Matthias Blume
364    Date: 2000/07/25 16:20:00 JST
365    Tag: blume-20000725-makedepend
366    Description:
367    
368    Added a script called ml-makedepend.  This can be used in makefiles
369    for Unix' make in a way very similar to the "makedepend" command for
370    C.
371    
372    The script internally uses function CM.sources.
373    
374    Synopsis:
375    
376        ml-makedepend [-f makefile] cmfile targetname
377    
378    The default for the makefile is "makefile" (or "Makefile" should
379    "makefile" not exist).
380    
381    ml-makedepend adds a cmfile/targetname-specific section to this
382    makefile (after removing the previous version of this section).  The
383    section contains a single dependency specification with targetname on
384    the LHS (targetname is an arbitrary name), and a list of files derived
385    from the cmfile on the RHS.  Some of the files on the RHS are
386    ARCH/OPSYS-specific.  Therefore, ml-makedepend inserts references to
387    "make" variables $(ARCH) and $(OPSYS) in place of the corresponding
388    path names.  The makefile writer is responsible for making sure that
389    these variables have correct at the time "make" is invoked.
390    
391    ----------------------------------------------------------------------
392    Name: Matthias Blume
393    Date: 2000/07/22 23:30:00 JST
394    Tag: blume-20000722-urlupdate
395    Description:
396    
397    Changed BOOT and config/srcarchiveurl to point to BL server:
398    
399        ftp://ftp.research.bell-labs.com/dist/smlnj/working/110.29/
400    
401    ----------------------------------------------------------------------
402    Name: Matthias Blume
403    Date: 2000/07/18 18:00:00 JST
404    Tag: blume-20000718-Version_110_29
405    Description:
406    
407    1. Updated src/compiler/TopLevel/main/version.sml to version 110.29
408    
409    2. Updated config/version to 110.29
410    
411    3. Updated config/srcarchiveurl
412    
413    3. New boot files!
414       ftp://ftp.cs.princeton.edu/pub/people/blume/sml/110.29-autofetch
415    
416    ----------------------------------------------------------------------
417    Name: Matthias Blume
418    Date: 2000/07/11 13:58:00 JST
419    Tag: blume-20000711-doctypo
420    Description:
421    
422    Fixed a few typos in CM manual.
423    
424    ----------------------------------------------------------------------
425    Name: Allen Leung
426    Date: 2000/06/15 00:38:00
427    Tag: leunga-20000704-sparc-x86
428    
429    1. x86 peephole improvement sp += k; sp -= k => nop  [from John]
430    2. fix to x86 RET bug [found by Dan Grossman]
431    3. sparc assembly bug fix for ticc instructions [found by Fermin]
432    
433       Affects c-- and moby only
434    
435    ----------------------------------------------------------------------
436    Name: Matthias Blume
437    Date: 2000/07/04 15:26:00
438    Tag: blume-20000704-trigger
439    Description:
440    
441    1. Improvements to CM manual.
442    2. SMLofNJ.Internals.BTrace.trigger reinstated as an alternative way
443       of getting a back-trace.  The function, when called, raises an
444       internal exception which explicitly carries the full back-trace history,
445       so it is unaffected by any intervening handle-raise pairs ("trivial"
446       or not).  The interactive loop will print that history once it arrives
447       at top level.
448       Short of having all exceptions implicitly carry the full history, the
449       recommended way of using this facility is:
450         - compile your program with instrumentation "on"
451         - run it, when it raises an exception, look at the history
452         - if the history is "cut off" because of some handler, go and modify
453           your program so that it explicitly calls BTrace.trigger
454         - recompile (still instrumented), and rerun; look at the full history
455    
456    ----------------------------------------------------------------------
457    Name: Matthias Blume
458    Date: 2000/07/03 15:36:00 JST
459    Tag: blume-20000702-manual
460    Description:
461    
462    Small corrections and updates to CM manual.
463    
464    ----------------------------------------------------------------------
465    Name: Matthias Blume
466    Date: 2000/06/29 16:04:00 JST
467    Tag: blume-20000629-yacctool
468    Description:
469    
470    Changes:
471    
472    1. Class "mlyacc" now takes separate arguments to pass options to
473       generated .sml- and .sig-files independently.
474    2. Corresponding CM manual updates.
475    3. BTrace module now also reports call sites.  (However, for loop clusters
476       it only shows from where the cluster was entered.)  There are associated
477       modifications to core.sml, internals.{sig,sml}, btrace.sml, and btimp.sml.
478    
479    ----------------------------------------------------------------------
480    Name: Matthias Blume
481    Date: 2000/06/27 16:51:00 JST
482    Tag: blume-20000627-noweb
483    Description:
484    
485    Changes:
486    
487     1. Implemented "subdir" and "witness" options for noweb tool.
488        This caused some slight internal changes in CM's tool implementation.
489     2. Fixed bug in "tool plugin" mechanism.  This is essentially cleaning
490        some remaining issues from earlier path anchor changes.
491     3. Updated CM manual accordingly.
492    
493     4. Changed implementation of back-tracing so that I now consider it
494        ready for prime-time.
495    
496        In particular, you don't have to explicitly trigger the back-trace
497        anymore.  Instead, if you are running BTrace-instrumented code and
498        there is an uncaught exception (regardless of whether or not it was
499        raised in instrumented code), the top-level evalloop will print
500        the back-trace.
501    
502        Features:
503    
504          - Instrumented and uninstrumented code work together seemlessly.
505            (Of course, uninstrumented code is never mentioned in actual
506             back-traces.)
507    
508          - Asymptotic time- and space-complexity of instrumented code is
509            equal to that of uninstrumented code.  (This means that
510            tail-recursion is preserved by the instrumentation phase.)
511    
512          - Modules whose code has been instrumented in different sessions
513            work together without problem.
514    
515          - There is no penalty whatsoever on uninstrumented code.
516    
517          - There is no penalty on "raise" expressions, even in
518            instrumented code.
519    
520        A potential bug (or perhaps it is a feature, too):
521    
522          A back-trace reaches no further than the outermost instrumented
523          non-trivial "raise".  Here, a "trivial" raise is one that is the
524          sole RHS of a "handle" rule.  Thus, back-traces reach trough
525    
526               <exp> handle e => raise e
527    
528          and even
529    
530               <exp> handle Foo => raise Bar
531    
532          and, of course, through
533    
534               <exp> handle Foo => ...
535    
536         if the exception was not Foo.
537    
538         Back-traces always reach right through any un-instrumented code
539         including any of its "handle" expressions, trivial or not.
540    
541       To try this out, do the following:
542    
543         - Erase all existing binfiles for your program.
544           (You may keep binfiles for those modules where you think you
545            definitely don't need back-tracing.)
546         - Turn on back-trace instrumentation:
547              SMLofNJ.Internals.BTrace.mode (SOME true);
548         - Recompile your program.  (I.e., run "CM.make" or "use".)
549         - You may now turn instrumentation off again (if you want):
550              SMLofNJ.Internals.BTrace.mode (SOME false);
551         - Run your program as usual.  If it raises an exception that
552           reaches the interactive toplevel, then a back-trace will
553           automatically be printed.  After that, the toplevel loop
554           will print the exception history as usual.
555    
556    ----------------------------------------------------------------------
557  Name: Matthias Blume  Name: Matthias Blume
558  Date: 2000/06/26 09:56:46 JST  Date: 2000/06/26 09:56:46 JST
559  Tag: blume-20000626-setup  Tag: blume-20000626-setup

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