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revision 716, Sat Nov 4 05:42:35 2000 UTC revision 1044, Mon Jan 28 21:36:08 2002 UTC
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8  The form of an entry should be:  The form of an entry should be:
9    
10  Name:  Name:
11  Date:  Date: yyyy/mm/dd
12  Tag: <post-commit CVS tag>  Tag: <post-commit CVS tag>
13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16  Name: Matthias Blume  Name: Matthias Blume
17    Date: 2002/01/28
18    Tag: blume-20020128-allocParam
19    Description:
20    
21    John Reppy:  Changes c-calls API to accept client-callback for
22    allocating extra stack space.
23    me: Corresponding changes to mlriscGen (using a dummy argument that
24        does not change the current behavior).
25    
26    ----------------------------------------------------------------------
27    Name: Matthias Blume
28    Date: 2002/01/28 12:00:00
29    Tag: Release_110_38
30    Description:
31    
32    This time for real!!!
33    
34    ----------------------------------------------------------------------
35    Name: Matthias Blume
36    Date: 2002/01/28 10:56:00 EST
37    Tag: blume-20020128-retraction
38    Description:
39    
40    0. Retracted earlier 110.38.  (The Release_110_38 tag has been replaced
41       with blume-Release_110_38-retracted.)
42    
43    1. Fixed a problem with incorrect rounding modes in real64.sml.
44       (Thanks to Andrew Mccreight <andrew.mccreight@yale.edu>.)
45    
46    2. A bug in ml-nlffigen related to the handling of unnamed structs, unions,
47       and enums fixed.  The naming of corresponding ML identifiers should
48       now be consistent again.
49    
50    ----------------------------------------------------------------------
51    Name: Allen Leung
52    Date: 2002/01/27
53    Tag: leunga-20020127-nowhere
54    Description:
55    
56       Added a target called nowhere in the configuration scripts.
57       Enabling this will build the MLRISC 'nowhere' tool (for translating
58       programs with where-clauses into legal SML code) during installation.
59    
60    ----------------------------------------------------------------------
61    Name: Matthias Blume
62    Date: 2002/01/25 21:27:00 EST
63    Tag: blume-Release_110_38-retracted
64    Description:
65    
66    Call it a (working) release!  Version is 110.38. Bootfiles are ready.
67    
68    README will be added later.
69    
70    !!! NOTE:  Re-tagged as blume-Release_110_38-retracted. Original tag
71    (Release_110_38) removed.  Reason: Last-minute bug fixes.
72    
73    ----------------------------------------------------------------------
74    Name: Matthias Blume
75    Date: 2002/01/25
76    Tag: blume-20020125-ffi
77    Description:
78    
79    A large number of tweaks and improvements to ml-nlffi-lib and
80    ml-nlffigen:
81    
82       - ML represenation types have been streamlined
83       - getter and setter functions work with concrete values, not abstract
84         ones where possible
85       - ml-nlffigen command line more flexible (see README file there)
86       - some bugs have been fixed (hopefully)
87    
88    ----------------------------------------------------------------------
89    Name: Lal George
90    Date: 2002/01/24
91    Tag: george-20020124-risc-ra-interface
92    Description:
93    
94       There is a dramatic simplification in the interface to the
95       register allocator for RISC architectures as a result of making
96       parallel copy instructions explicit.
97    
98    ----------------------------------------------------------------------
99    Name: Matthias Blume
100    Date: 2002/01/22
101    Tag: blume-20020122-x86-ccalls
102    Description:
103    
104    Bug fix for c-calls on x86 (having to do with how char- and
105    short-arguments are being handled).
106    
107    ----------------------------------------------------------------------
108    Name: Matthias Blume
109    Date: 2002/01/21
110    Tag: blume-20020121-ff
111    Description:
112    
113    Another day of fiddling with the FFI...
114    
115    1. Bug fix/workaround:  CKIT does not complain about negative array
116       dimensions, so ml-nlffigen has to guard itself against this possibility.
117       (Otherwise a negative dimension would send it into an infinite loop.)
118    
119    2. Some of the abstract types (light objects, light pointers, most "base"
120       types) in structure C are now eqtypes.
121    
122    3. Added constructors and test functions for NULL function pointers.
123    
124    ----------------------------------------------------------------------
125    Name: Matthias Blume
126    Date: 2002/01/18
127    Tag: blume-20020118-ready-for-new-release
128    Description:
129    
130    Made config/srcarchiveurl point to a new place.  (Will provide boot
131    files shortly.)
132    
133    Maybe we christen this to be 110.38?
134    
135    ----------------------------------------------------------------------
136    Name: Matthias Blume
137    Date: 2002/01/18
138    Tag: blume-20020118-more-ffifiddle
139    Description:
140    
141    Today's FFI fiddling:
142    
143      - Provided a structure CGetSet with "convenient" versions of C.Get.* and
144        C.Set.* that use concrete (MLRep.*) arguments and results instead
145        of abstract ones.
146    
147      - Provided word-style bit operations etc. for "int" representation
148        types in MLRep.S<Foo>Bitops where <Foo> ranges over Char, Int, Short,
149        and Long.
150    
151    ----------------------------------------------------------------------
152    Name: Matthias Blume
153    Date: 2002/01/18
154    Tag: blume-20020118-use-x86-fp
155    Description:
156    
157    Now that x86-fast-fp seems to be working, I turned it back on again
158    by default.  (Seems to work fine now, even with the FFI.)
159    
160    Other than that, I added some documentation about the FFI to
161    src/ml-nlffigen/README and updated the FFI test examples in
162    src/ml-nlffi-lib/Tests/*.
163    
164    ----------------------------------------------------------------------
165    Name: Allen Leung
166    Date: 2002/01/17
167    Tag: leunga-20020117-x86-fast-fp-call
168    Description:
169    
170       1. Fixed a problem with handling return fp values when x86's fast fp
171          mode is turned on.
172    
173       2. Minor pretty printing fix for cellset.  Print %st(0) as %st(0) instead
174          of %f32.
175    
176       3. Added a constructor INT32lit to the ast of MLRISC tools.
177    
178    ----------------------------------------------------------------------
179    Name: Matthias Blume
180    Date: 2002/01/16
181    Tag: blume-20020116-ffifiddle
182    Description:
183    
184    More fiddling with the FFI interface:
185    
186     - Make constness 'c instead of rw wherever possible.  This eliminates
187       the need for certain explicit coercions.  (However, due to ML's
188       value polymorphism, there will still be many cases where explicit
189       coercions are necessary.  Phantom types are not the whole answer
190       to modeling a subtyping relationship in ML.)
191    
192     - ro/rw coersions for pointers added.  (Avoids the detour through */&.)
193    
194     - "printf" test example added to src/ml-nlffi-lib/Tests.  (Demonstrates
195       clumsy workaround for varargs problem.)
196    
197    ----------------------------------------------------------------------
198    Name: Lal George
199    Date: 2002/01/15
200    Tag: <none>
201    Description:
202    
203    1. Since COPY instructions are no longer native to the architecture,
204       a generic functor can be used to implement the expandCopies function.
205    
206    2. Allowed EXPORT and IMPORT pseudo-op declarations to appear inside a
207       TEXT segment.
208    
209    ----------------------------------------------------------------------
210    Name: Matthias Blume
211    Date: 2002/01/15
212    Tag: blume-20020115-ffiupdates
213    Description:
214    
215    1. Fix for bug resulting in single-precision float values being returned
216       incorrectly from FFI calls.
217    
218    2. Small modifications to C FFI API:
219    
220        - memory-allocation routines return straight objects (no options)
221          and raise an exception in out-of-memory situations
222        - unsafe extensions to cast between function pointers and pointers
223          from/to ints
224        - added structure C_Debug as an alternative to structure C where
225          pointer-dereferencing (|*| and |*!) always check for null-pointers
226        - added open_lib' to DynLinkage;  open_lib' works like open_lib
227          but also takes a (possibly empty) list of existing library handles
228          that the current library depends on
229    
230    ----------------------------------------------------------------------
231    Name: Matthias Blume
232    Date: 2002/01/10
233    Tag: blume-20020110-newffigen
234    Description:
235    
236    1. Updates to portable graph code.
237    
238    2. Major update to ml-nlffigen and ml-nlffi-lib.  Things are much
239       more scalable now so that even huge interfaces such as the one
240       for GTK compile in finite time and space. :-)
241       See src/ml-nlffigen/README for details on what's new.
242    
243    ----------------------------------------------------------------------
244    Name: Lal George
245    Date: 2001/01/09 14:31:35 EST 2002
246    Tag: george-20011206-rm-native-copy
247    Description:
248    
249            Removed the native COPY and FCOPY instructions
250            from all the architectures and replaced it with the
251            explicit COPY instruction from the previous commit.
252    
253            It is now possible to simplify many of the optimizations
254            modules that manipulate copies. This has not been
255            done in this change.
256    
257    ----------------------------------------------------------------------
258    Name: Lal George
259    Date: 2001/12/06 16:50:13 EST 2001
260    Tag: george-20011206-mlrisc-instruction
261    Description:
262    
263    Changed the representation of instructions from being fully abstract
264    to being partially concrete. That is to say:
265    
266      from
267            type instruction
268    
269      to
270            type instr                              (* machine instruction *)
271    
272            datatype instruction =
273                LIVE of {regs: C.cellset, spilled: C.cellset}
274              | KILL of {regs: C.cellset, spilled: C.cellset}
275              | COPYXXX of {k: CB.cellkind, dst: CB.cell list, src: CB.cell list}
276              | ANNOTATION of {i: instruction, a: Annotations.annotation}
277              | INSTR of instr
278    
279    This makes the handling of certain special instructions that appear on
280    all architectures easier and uniform.
281    
282    LIVE and KILL say that a list of registers are live or killed at the
283    program point where they appear. No spill code is generated when an
284    element of the 'regs' field is spilled, but the register is moved to
285    the 'spilled' (which is present, more for debugging than anything else).
286    
287    LIVE replaces the (now deprecated) DEFFREG instruction on the alpha.
288    We used to generate:
289    
290            DEFFREG f1
291            f1 := f2 + f3
292            trapb
293    
294    but now generate:
295    
296            f1 := f2 + f3
297            trapb
298            LIVE {regs=[f1,f2,f3], spilled=[]}
299    
300    Furthermore, the DEFFREG (hack) required that all floating point instruction
301    use all registers mentioned in the instruction. Therefore f1 := f2 + f3,
302    defines f1 and uses [f1,f2,f3]! This hack is no longer required resulting
303    in a cleaner alpha implementation. (Hopefully, intel will not get rid of
304    this architecture).
305    
306    COPYXXX is intended to replace the parallel COPY and FCOPY  available on
307    all the architectures. This will result in further simplification of the
308    register allocator that must be aware of them for coalescing purposes, and
309    will also simplify certain aspects of the machine description that provides
310    callbacks related to parallel copies.
311    
312    ANNOTATION should be obvious, and now INSTR represents the honest to God
313    machine instruction set!
314    
315    The <arch>/instructions/<arch>Instr.sml files define certain utility
316    functions for making porting easier -- essentially converting upper case
317    to lower case. All machine instructions (of type instr) are in upper case,
318    and the lower case form generates an MLRISC instruction. For example on
319    the alpha we have:
320    
321      datatype instr =
322         LDA of {r:cell, b:cell, d:operand}
323       | ...
324    
325      val lda : {r:cell, b:cell, d:operand} -> instruction
326        ...
327    
328    where lda is just (INSTR o LDA), etc.
329    
330    ----------------------------------------------------------------------
331    Name: Matthias Blume
332    Date: 2001/11/22 21:40:00 EST
333    Tag: Release_110_37
334    Description:
335    
336    Release 110.37.  This time for real.
337    
338    ----------------------------------------------------------------------
339    Name: Matthias Blume
340    Date: 2001/11/21 16:35:00 EST
341    Tag: blume-20011121-foot-in-mouth
342    Description:
343    
344    Removed the "Release_110_37" tag because of a serious bug.
345    This will be re-tagged once the bug is fixed.
346    
347    ----------------------------------------------------------------------
348    Name: Matthias Blume
349    Date: 2001/11/21 16:14:00 EST
350    Tag: blume-20011121-forgottenfile
351    Description:
352    
353    Forgot to add a file.  (Just a .tex-file -- part of
354    the CM manual source.)
355    
356    ----------------------------------------------------------------------
357    Name: Matthias Blume
358    Date: 2001/11/21 16:10:00 EST
359    Tag: blume-20011121-invalid_110_37
360    Description:
361    
362    Note: I removed the original tag "Release_110_37" from this commit
363          because we found a serious bug in all non-x86 backends.
364          - Matthias
365    
366    1. Modifications to the SML/NJ code generator and to the runtime system
367       so that code object name strings are directly inserted into code
368       objects at code generation time.  The only business the runtime system
369       has with this is now to read the name strings on occasions.
370       (The encoding of the name string has also changed somewhat.)
371    
372    2. CM now implements a simple "set calculus" for specifying export lists.
373       In particular, it is now possible to refer to the export lists of
374       other libraries/groups/sources and form unions as well as differences.
375       See the latest CM manual for details.
376    
377    3. An separate notion of "proxy" libraries has again be eliminated from
378       CM's model.  (Proxy libraries are now simply a special case of using
379       the export list calculus.)
380    
381    4. Some of the existing libraries now take advantage of the new set
382       calculus.
383       (Notice that not all libraries have been converted because some
384       of the existing .cm-files are supposed to be backward compatible
385       with 110.0.x.)
386    
387    5. Some cleanup in stand-alone programs.  (Don't use "exnMessage" -- use
388       "General.exnMessage"!  The former relies on a certain hook to be
389       initialized, and that often does not happen in the stand-alone case.)
390    
391    ----------------------------------------------------------------------
392    Name: Lal George
393    Date: 2001/11/21  13:56:18 EST
394    Tag: george-2001121-pseudo-ops
395    Description:
396    
397      Implemented a complete redesign of MLRISC pseudo-ops. Now there
398      ought to never be any question of incompatabilities with
399      pseudo-op syntax expected by host assemblers.
400    
401      For now, only modules supporting GAS syntax are implemented
402      but more should follow, such as MASM, and vendor assembler
403      syntax, e.g. IBM as, Sun as, etc.
404    
405    ----------------------------------------------------------------------
406    Name: Matthias Blume
407    Date: 2001/11/14 11:52:00 EST
408    Tag: blume-20011114-srcname
409    Description:
410    
411    1. Routed the name of the current source file to mlriscgen where it
412       should be directly emitted into the code object.  (This last part
413       is yet to be done.)
414    
415    2. Some cleanup of the pgraph code to make it match the proposal that
416       I put out the other day.  (The proposal notwithstanding, things are
417       still in flux here.)
418    
419    ----------------------------------------------------------------------
420    Name: Lal George
421    Date: 2001/11/14 09:44:04 EST
422    Tag:
423    Description:
424    
425      Fix for a backpatching bug reported by Allen.
426    
427      Because the boundary between short and long span-dependent
428      instructions is +/- 128, there are an astounding number of
429      span-dependent instructions whose size is over estimated.
430    
431      Allen came up with the idea of letting the size of span
432      dependent instructions be non-monotonic, for a maxIter
433      number of times, after which the size must be monotonically
434      increasing.
435    
436      This table shows the number of span-dependent instructions
437      whose size was over-estimated as a function of maxIter, for the
438      file Parse/parse/ml.grm.sml:
439    
440         maxIter            # of instructions:
441            10                      687
442            20                      438
443            30                      198
444            40                        0
445    
446      In compiling the compiler, there is no significant difference in
447      compilation speed between maxIter=10 and maxIter=40. Actually,
448      my measurements showed that maxIter=40 was a tad faster than
449      maxIter=10! Also 96% of the  files in the compiler reach a fix
450      point within 13 iterations, so fixing maxIter at 40, while high,
451      is okay.
452    
453    ----------------------------------------------------------------------
454    Name: Matthias Blume
455    Date: 2001/10/31 15:25:00 EST
456    Tag: blume-20011031-pgraph
457    Description:
458    
459    CKIT:
460    * Changed the "Function" constructor of type Ast.ctype to carry optional
461      argument identifiers.
462    * Changed the return type of TypeUtil.getFunction accordingly.
463    * Type equality ignores the argument names.
464    * TypeUtil.composite tries to preserve argument names but gives up quickly
465      if there is a mismatch.
466    
467    installation script:
468    * attempts to use "curl" if available (unless "wget" is available as well)
469    
470    CM:
471    * has an experimental implementation of "portable graphs" which I will
472      soon propose as an implementation-independent library format
473    * there are also new libraries $/pgraph.cm and $/pgraph-util.cm
474    
475    NLFFI-LIB:
476    * some cleanup (all cosmetic)
477    
478    NLFFIGEN:
479    * temporarily disabled the mechanism that suppresses ML output for
480      C definitions whose identifiers start with an underscore character
481    * generate val bindings for enum constants
482    * user can request that only one style (light or heavy) is being used;
483      default is to use both (command-line arguments: -heavy and -light)
484    * fixed bug in handling of function types involving incomplete pointers
485    * generate ML entry points that take record arguments (i.e., using
486      named arguments) for C functions that have a prototype with named
487      arguments
488      (see changes to CKIT)
489    
490    ----------------------------------------------------------------------
491    Name: Allen Leung
492    Date: 2001/10/27 20:34:00 EDT
493    Tag: leunga-20011027-x86-fast-fp-call
494    Description:
495    
496       Fixed the bug described in blume-20010920-slowfp.
497    
498       The fix involves
499          1. generating FCOPYs in FSTP in ia32-svid
500          2. marking a CALL with the appropriate annotation
501    
502    ----------------------------------------------------------------------
503    Name: Matthias Blume
504    Date: 2001/10/16 11:32:00 EDT
505    Tag: blume-20011016-netbsd
506    Description:
507    
508    Underscore patch from Chris Richards (fixing problem with compiling
509    runtime system under recent NetBSD).
510    
511    ----------------------------------------------------------------------
512    Name: Allen Leung
513    Date: 2001/10/12 17:18:32 EDT 2001
514    Tag: leung-20011012-x86-printflowgraph
515    Description:
516    
517    X86RA now uses a valid (instead of dummy) PrintFlowgraph module.
518    
519    ----------------------------------------------------------------------
520    Name: Lal George
521    Date: 2001/10/11 23:51:34 EDT
522    Tag: george-20011011-too-many-instrs
523    Description:
524    
525    The representation of a program point never expected to see more
526    than 65536 instructions in a basic block!
527    
528    ----------------------------------------------------------------------
529    Name: Lal George
530    Date: 2001/10/09 09:41:37 EDT
531    Tag: george-20011008-mlrisc-labels
532    Description:
533    
534    Changed the machine description files to support printing of
535    local and global labels in assembly code, based on host assembler
536    conventions.
537    
538    ----------------------------------------------------------------------
539    Name: Matthias Blume
540    Date: 2001/09/25 15:25:00 EDT
541    Tag: blume-20010925-exninfo
542    Description:
543    
544    I provided a non-hook implementation of exnName (at the toplevel) and
545    made the "dummy" implementation of exnMessage (at the toplevel) more
546    useful: if nothing gets "hooked in", then at least you are going to
547    see the exception name and a message indicating why you don't see more.
548    
549    [For the time being, programs that need exnMessage and want to use
550    ml-build should either use General.exnMessage (strongly recommended) or
551    refer to structure General at some other point so that CM sees a
552    static dependency.]
553    
554    [Similar remarks go for "print" and "use":  If you want to use their
555    functionality in stand-alone programs generated by ml-build, then use
556    TextIO.output and Backend.Interact.useFile (from $smlnj/compiler.cm).]
557    
558    ----------------------------------------------------------------------
559    Name: Matthias Blume
560    Date: 2001/09/20 17:28:00 EDT
561    Tag: blume-20010920-slowfp
562    Description:
563    
564    Allen says that x86-fast-fp is not safe yet, so I turned it off again...
565    
566    ----------------------------------------------------------------------
567    Name: Matthias Blume
568    Date: 2001/09/20 17:20:00 EDT
569    Tag: blume-20010920-canonicalpaths
570    Description:
571    
572    0. Updated the BOOT file (something that I forgot to do earlier).
573    
574    1. Small internal change to CM so that it avoids "/../" in filenames
575       as much as possible (but only where it is safe).
576    
577    2. Changed config/_run-sml (resulting in a changed bin/.run-sml) so
578       that arguments that contain delimiters are passed through correctly.
579       This change also means that all "special" arguments of the form
580       @SMLxxx... must come first.
581    
582    3. Changed install script to put relative anchor names for tool commands
583       into pathconfig.
584    
585    ----------------------------------------------------------------------
586    Name: Matthias Blume
587    >>>>>>> 1.169
588    Date: 2001/09/18 15:35:00 EDT
589    Tag: blume-20010918-readme11036
590    Description:
591    
592    Added README files.
593    
594    ----------------------------------------------------------------------
595    Name: Matthias Blume
596    Date: 2001/09/18 11:45:00 EDT
597    Tag: Release_110_36 (retag)
598    Description:
599    
600    Fixed mistake in config/preloads. Retagged as 110.36.
601    
602    ----------------------------------------------------------------------
603    Name: Matthias Blume
604    Date: 2001/09/18 09:40:00 EDT
605    Tag: Release_110_36_orig (tag changed)
606    Description:
607    
608    New version (110.36).  New bootfiles.
609    
610    ----------------------------------------------------------------------
611    Name: Matthias Blume
612    Date: 2001/09/14 16:15:00 EDT
613    Tag: blume-20010914-x86fastfp
614    Description:
615    
616    John committed some changes that Allen made, in particular a (hopefully)
617    correctly working version of the x86-fp module.
618    
619    I changed the default setting of the Control.MLRISC.getFlag "x86-fast-fp"
620    flag to "true".  Everything seems to compile to a fixpoint ok, and
621    "mandelbrot" speeds up by about 15%.
622    
623    ----------------------------------------------------------------------
624    Name: Matthias Blume
625    Date: 2001/09/13 11:20:00 EDT
626    Tag: blume-20010913-minimal
627    Description:
628    
629    1. Stefan Monnier's patch to fix a miscompilation problem that
630       was brought to light by John Reppy's work on Moby.
631    
632    2. Implemented a minimal "structure Compiler" that contains just
633       "version" and "architecture".  The minimal version will be
634       available when the full version is not.  This is for backward-
635       compatibility with code that wants to test Compiler.version.
636    
637    ----------------------------------------------------------------------
638    Name: Matthias Blume
639    Date: 2001/08/28 14:03:00 EDT
640    Tag: blume-20010828-ml-lex
641    Description:
642    
643    Fix for bug 1581, received from Neophytos Michael.
644    
645    ----------------------------------------------------------------------
646    Name: Matthias Blume
647    Date: 2001/08/27 11:20:00 EDT
648    Tag: blume-20010827-readme11035
649    Description:
650    
651    Fleshed out the README file for 110.35.
652    
653    ----------------------------------------------------------------------
654    Name: Matthias Blume
655    Date: 2001/08/24 17:10:00 EDT
656    Tag: Release_110_35
657    Description:
658    
659    New version number (110.35).  New bootfiles.
660    
661    ----------------------------------------------------------------------
662    Name: Lal George
663    Date: 2001/08/24 13:47:18 EDT 2001
664    Tag: george-20010824-MLRISC-graphs
665    Description:
666    
667     removed clusters from MLRISC completely and replaced with graphs.
668    
669    ----------------------------------------------------------------------
670    Name: Matthias Blume
671    Date: 2001/08/23 17:50:00 EDT
672    Tag: blume-20010823-toplevel
673    Description:
674    
675    - some reorganization of the code that implements various kinds of
676      environments in the compiler (static, dynamic, symbolic, combined)
677    - re-implemented the EnvRef module so that evalStream works properly
678      (if the stream contains references to "use", "CM.make", etc.)
679    - cleaned up evalloop.sml and interact.sml (but they need more cleaning)
680    
681    ----------------------------------------------------------------------
682    Name: Matthias Blume
683    Date: 2001/08/20 15:50 EDT
684    Tag: blume20010820-slipup
685    Description:
686    
687    I forgot to commit a few files.  Here they are...
688    
689    ----------------------------------------------------------------------
690    Name: Matthias Blume
691    Date: 2001/08/20 15:35:00 EDT
692    Tag: blume-20010820-debugprof
693    Description:
694    
695    !!!! NEW BOOTFILES !!!!
696    
697    This is another round of reorganizing the compiler sources.  This
698    time the main goal was to factor out all the "instrumentation"
699    passes (for profiling and backtracing) into their own library.
700    The difficulty was to do it in such a way that it does not depend
701    on elaborate.cm but only on elabdata.cm.
702    
703    Therefore there have been further changes to both elaborate.cm and
704    elabdata.cm -- more "generic" things have been moved from the former
705    to the latter.  As a result, I was forced to split the assignment
706    of numbers indicating "primtyc"s into two portions: SML-generic and
707    SML/NJ-specific.  Since it would have been awkward to maintain,
708    I bit the bullet and actually _changed_ the mapping between these
709    numbers and primtycs.  The bottom line of this is that you need
710    a new set of bin- and bootfiles.
711    
712    I have built new bootfiles for all architectures, so doing a fresh
713    checkout and config/install.sh should be all you need.
714    
715    The newly created library's name is
716    
717        $smlnj/viscomp/debugprof.cm
718    
719    and its sources live under
720    
721        src/compiler/DebugProf
722    
723    ----------------------------------------------------------------------
724    Name: Matthias Blume
725    Date: 2001/08/15 17:15:00 EDT
726    Tag: blume-20010815-compreorg
727    Description:
728    
729    This is a first cut at reorganizing the CM libraries that make up the
730    core of the compiler.  The idea is to separate out pieces that could
731    be used independently by tools, e.g., the parser, the typechecker, etc.
732    
733    The current status is a step in this direction, but it is not quite
734    satisfactory yet.  Expect more changes in the future.
735    
736    Here is the current (new) organization...
737    
738        What used to be $smlnj/viscomp/core.cm is now divided into
739        six CM libraries:
740    
741             $smlnj/viscomp/basics.cm
742                           /parser.cm
743                           /elabdata.cm
744                           /elaborate.cm
745                           /execute.cm
746                           /core.cm
747    
748        The CM files for these libraries live under src/system/smlnj/viscomp.
749        All these libraries are proxy libraries that contain precisely
750        one CM library component.  Here are the locations of the components
751        (all within the src/compiler tree):
752    
753             Basics/basics.cm
754             Parse/parser.cm
755             ElabData/elabdata.cm
756             Elaborator/elaborate.cm
757             Execution/execute.cm
758             core.cm
759    
760         [This organization is the same that has been used already
761         for a while for the architecture-specific parts of the visible
762         compiler and for the old version of core.cm.]
763    
764         As you will notice, many source files have been moved from their
765         respective original locations to a new home in one of the above
766         subtrees.
767    
768         The division of labor between the new libraries is the following:
769    
770             basics.cm:
771                - Simple, basic definitions that pertain to many (or all) of
772                  the other libraries.
773             parser.cm:
774                - The SML parser, producing output of type Ast.dec.
775                - The type family for Ast is also defined and exported here.
776             elabdata.cm:
777                - The datatypes that describe input and output of the elaborator.
778                  This includes types, absyn, and static environments.
779             elaborator.cm:
780                - The SML/NJ type checker and elaborator.
781                  This maps an Ast.dec (with a given static environment) to
782                  an Absyn.dec (with a new static environment).
783                - This libraries implements certain modules that used to be
784                  structures as functors (to remove dependencies on FLINT).
785             execute.cm:
786                - Everything having to do with executing binary code objects.
787                - Dynamic environments.
788             core.cm:
789                - SML/NJ-specific instantiations of the elaborator and MLRISC.
790                - Top-level modules.
791                - FLINT (this should eventually become its own library)
792    
793    Notes:
794    
795    I am not 100% happy with the way I separated the elaborator (and its
796    data structures) from FLINT.  Two instances of the same problem:
797    
798        1. Data structures contain certain fields that carry FLINT-specific
799           information.  I hacked around this using exn and the property list
800           module from smlnj-lib.  But the fact that there are middle-end
801           specific fields around at all is a bit annoying.
802    
803        2. The elaborator calculates certain FLINT-related information.  I tried
804           to make this as abstract as I could using functorization, but, again,
805           the fact that the elaborator has to perform calculations on behalf
806           of the middle-end at all is not nice.
807    
808        3. Having to used exn and property lists is unfortunate because it
809           weakens type checking.  The other alternative (parameterizing
810           nearly *everything*) is not appealing, though.
811    
812    I removed the "rebinding =" warning hack because due to the new organization
813    it was awkward to maintain it.  As a result, the compiler now issues some of
814    these warnings when compiling init.cmi during bootstrap compilation. On
815    the plus side, you also get a warning when you do, for example:
816       val op = = Int32.+
817    which was not the case up to now.
818    
819    I placed "assign" and "deref" into the _Core structure so that the
820    code that deals with the "lazy" keyword can find them there.  This
821    removes the need for having access to the primitive environment
822    during elaboration.
823    
824    ----------------------------------------------------------------------
825    Name: Matthias Blume
826    Date: 2001/08/13
827    Tag: blume-20010813-closures
828    Description:
829    
830    This fix was sent to us by Zhong Shao.  It is supposed to improve the
831    performance of certain loops by avoiding needless closure allocation.
832    
833    ----------------------------------------------------------------------
834    Name: Lal George
835    Date: 2001/07/31 10:03:23 EDT 2001
836    Tag: george-20010731-x86-fmalloc
837    Description: Fixed bug in x86 calls
838    
839        There was a bug where call instructions would mysteriously
840        vanish. The call instruction had to be one that returned
841        a floating point value.
842    
843    ----------------------------------------------------------------------
844    Name: Lal George
845    Date: 2001/07/19 16:36:29 EDT 2001
846    Tag: george-20010719-simple-cells
847    Description:
848    
849    I have dramatically simplified the interface for CELLS in MLRISC.
850    
851    In summary, the cells interface is broken up into three parts:
852    
853      1. CellsBasis : CELLS_BASIS
854    
855            CellsBasis is a top level structure and common for all
856            architectures.  it contains the definitions of basic datatypes
857            and utility  functions over these types.
858    
859      2. functor Cells() : CELLS
860    
861            Cells generates an interface for CELLS that incorporates the
862            specific resources on the target architecture, such as the
863            presence of special register classes, their number and size,
864            and various useful substructures.
865    
866      3. <ARCH>CELLS
867    
868            e.g. SparcCells: SPARCCELLS
869    
870            <ARCH>CELLS usually contains additional bindings for special
871            registers  on the architecture, such as:
872    
873                    val r0 : cell           (* register zero *)
874                    val y : cell            (* Y register *)
875                    val psr : cell          (* processor status register *)
876                    ...
877    
878            The structure returned by applying the Cells functor is opened
879            in this interface.
880    
881    The main implication of all this is that the datatypes for cells is
882    split between CellsBasis and CELLS -- a fairly simple change for user
883    code.
884    
885    In the old scheme the CELLS interface had a definitional binding of
886    the form:
887    
888            signature CELLS = sig
889    
890               structure CellsBasis = CellsBasis
891    
892               ...
893    
894            end
895    
896    With all the sharing constraints that goes on in MLRISC, this old
897    design  quickly leads to errors such as:
898    
899            "structure definition spec inside of sharing ... "
900    
901    
902    and appears to require an unacceptable amount of sharing and where
903    constraint hackery.
904    
905    I think this error message (the interaction of definitional specs and
906    sharing) requires more explanation on our web page.
907    
908    ----------------------------------------------------------------------
909    Name: Matthias Blume
910    Date: 2001/07/19 15:00:00 EDT
911    Tag: blume-20010719-libreorg
912    Description:
913    
914    This update puts together a fairly extensive but straightforward change
915    to the way the libraries that implement the interactive system are
916    organized:
917    
918       The biggest change is the elimination of structure Compiler.  As a
919       replacement for this structure, there is now a CM library
920       (known as $smlnj/compiler.cm or $smlnj/compiler/current.cm)
921       that exports all the substructures of the original structure Compiler
922       directly.  So instead of saying Compiler.Foo.bar one now simply
923       says Foo.bar.  (The CM libraries actually export a collection of
924       structures that is richer than the collection of substructures of
925       structure Compiler.)
926    
927       To make the transition smooth, there is a separate library called
928       $smlnj/compiler/compiler.cm which puts together and exports the
929       original structure Compiler (or at least something very close to it).
930    
931       There are five members of the original structure Compiler
932       that are not exported directly but which instead became members
933       of a new structure Backend (described by signature BACKEND).  These are:
934       structure Profile (: PROFILE), structure Compile (: COMPILE), structure
935       Interact (: INTERACT), structure Machine (: MACHINE), and val
936       architecture (: string).
937    
938       Structure Compiler.Version has become structure CompilerVersion.
939    
940       Cross-compilers for alpha32, hppa, ppc, sparc, and x86 are provided
941       by $smlnj/compiler/<arch>.cm where <arch> is alpha32, hppa, ppc, sparc,
942       or x86, respectively.
943       Each of these exports the same frontend structures that
944       $smlnj/compiler.cm exports.  But they do not have a structure Backend
945       and instead export some structure <Arch>Backend where <Arch> is Alpha32,
946       Hppa, PPC, Sparc, or X86, respectively.
947    
948       Library $smlnj/compiler/all.cm exports the union of the exports of
949       $smlnj/compiler/<arch>.cm
950    
951       There are no structures <Arch>Compiler anymore, use
952       $smlnj/compiler/<arch>.cm instead.
953    
954       Library host-compiler-0.cm is gone.  Instead, the internal library
955       that instantiates CM is now called cm0.cm.  Selection of the host
956       compiler (backend) is no longer done here but. (Responsibility for it
957       now lies with $smlnj/compiler/current.cm.  This seems to be more
958       logical.)
959    
960       Many individual files have been moved or renamed.  Some files have
961       been split into multiple files, and some "dead" files have been deleted.
962    
963    Aside from these changes to library organization, there are also changes
964    to the way the code itself is organized:
965    
966       Structure Binfile has been re-implemented in such a way that it no
967       longer needs any knowledge of the compiler.  It exclusively deals
968       with the details of binfile layout.  It no longer invokes the
969       compiler (for the purpose of creating new prospective binfile
970       content), and it no longer has any knowledge of how to interpret
971       pickles.
972    
973       Structure Compile (: COMPILE) has been stripped down to the bare
974       essentials of compilation.  It no longer deals with linking/execution.
975       The interface has been cleaned up considerably.
976    
977       Utility routines for dealing with linking and execution have been
978       moved into their own substructures.
979    
980       (The ultimate goal of these changes is to provide a light-weight
981       binfile loader/linker (at least for, e.g., stable libraries) that
982       does not require CM or the compiler to be present.)
983    
984    CM documentation has been updated to reflect the changes to library
985    organization.
986    
987    ----------------------------------------------------------------------
988    Name: Matthias Blume
989    Date: 2001/07/10 17:30:00 EDT
990    Tag: Release_110_34
991    Description:
992    
993    Minor tweak to 110.34 (re-tagged):
994    
995      - README.html file added to CVS repository
996      - runtime compiles properly under FreeBSD 3.X and 4.X
997    
998    ----------------------------------------------------------------------
999    Name: Matthias Blume
1000    Date: 2001/07/10 17:30:00 EDT
1001    Tag: Release_110_34
1002    Description:
1003    
1004    New version number (110.34). New bootfiles.
1005    
1006    ----------------------------------------------------------------------
1007    Name: Matthias Blume
1008    Date: 2001/07/09 16:00:00 EDT
1009    Tag: blume-20010709-more-varargs
1010    Description:
1011    
1012    I changed the handling of varargs in ml-nlffigen again:
1013    The ellipsis ... will now simply be ignored (with an accompanying warning).
1014    
1015    The immediate effect is that you can actually call a varargs function
1016    from ML -- but you can't actually supply any arguments beyond the ones
1017    specified explicitly.  (For example, you can call printf with its format
1018    string, but you cannot pass additional arguments.)
1019    
1020    This behavior is only marginally more useful than the one before, but
1021    it has the advantage that a function or, more importantly, a function
1022    type never gets dropped on the floor, thus avoiding follow-up problems with
1023    other types that refer to the offending one.
1024    
1025    ----------------------------------------------------------------------
1026    Name: Matthias Blume
1027    Date: 2001/07/09 11:25:00 EDT
1028    Tag: blume-20010709-varargs
1029    Description:
1030    
1031    1. ckit-lib.cm now exports structure Error
1032    2. ml-nlffigen reports occurences of "..." (i.e., varargs function types)
1033       with a warning accompanied by a source location.  Moreover, it
1034       merely skips the offending function or type and proceeds with the
1035       rest of its work.u  As a result, one can safely feed C code containing
1036       "..." to ml-nlffigen.
1037    3. There are some internal improvements to CM, providing slightly
1038       more general string substitutions in the tools subsystem.
1039    
1040    ----------------------------------------------------------------------
1041    Name: Matthias Blume
1042    Date: 2001/06/27 15:10:00 EDT
1043    Tag: blume-20010627-concur
1044    Description:
1045    
1046    Fixed a small bug in CM's handling of parallel compilation.
1047    (You could observe the bug by Control-C-interrupting an ordinary
1048    CMB.make or CM.stabilize and then attaching some compile servers.
1049    The result was that all of a sudden the previously interrupted
1050    compilation would continue on its own.  This was because of
1051    an over-optimization: CM did not bother to clean out certain queues
1052    when no servers were attached "anyway", resulting in the contents
1053    of these queues to grab control when new servers did get attached.)
1054    
1055    There is also another minor update to the CM manual.
1056    
1057    ----------------------------------------------------------------------
1058    Name: Matthias Blume
1059    Date: 2001/06/26 16:15:00 EDT
1060    Tag: blume-20010626-cmdoc
1061    Description:
1062    
1063    Minor typo fixed in CM manual (syntax diagram for libraries).
1064    
1065    ----------------------------------------------------------------------
1066    Name: Matthias Blume
1067    Date: 2001/06/25 22:55:00 EDT
1068    Tag: blume-20010625-x86pc
1069    Description:
1070    
1071    Fixed a nasty bug in the X86 assembly code that caused signal
1072    handlers to fail (crash) randomly.
1073    
1074    ----------------------------------------------------------------------
1075    Name: Matthias Blume
1076    Date: 2001/06/25 12:05:00 EDT
1077    Tag: blume-20010625-nlffigen
1078    Description:
1079    
1080    This update fixes a number of minor bugs in ml-nlffigen as reported by
1081    Nick Carter <nbc@andrew.cmu.edu>.
1082    
1083      1. Silly but ok typedefs of the form "typedef void myvoid;" are now accepted.
1084      2. Default names for generated files are now derived from the name of
1085         the C file *without its directory*.  In particular, this causes generated
1086         files to be placed locally even if the C file is in some system directory.
1087      3. Default names for generated signatures and structures are also derived
1088         from the C file name without its directory.  This avoids silly things
1089         like "structure GL/GL".
1090         (Other silly names are still possible because ml-nlffigen does not do
1091          a thorough check of whether generated names are legal ML identifiers.
1092          When in doubt, use command line arguments to force particular names.)
1093    
1094    ----------------------------------------------------------------------
1095    Name: Matthias Blume
1096    Date: 2001/06/21 12:25:00 EDT
1097    Tag: blume-20010621-eXene
1098    Description:
1099    
1100    eXene now compiles and (sort of) works again.
1101    
1102    The library name (for version > 110.33) is $/eXene.cm.
1103    
1104    I also added an new example in src/eXene/examples/nbody.  See the
1105    README file there for details.
1106    
1107    ----------------------------------------------------------------------
1108    Name: Matthias Blume
1109    Date: 2001/06/20 16:40:00 EDT
1110    Tag: blume-20010620-cml
1111    Description:
1112    
1113    CML now compiles and works again.
1114    
1115    Libraries (for version > 110.33):
1116    
1117      $cml/cml.cm            Main CML library.
1118      $cml/basis.cm          CML's version of $/basis.cm.
1119      $cml/cml-internal.cm   Internal helper library.
1120      $cml/core-cml.cm       Internal helper library.
1121      $cml-lib/trace-cml.cm  Tracing facility.
1122      $cml-lib/smlnj-lib.cm  CML's version of $/smlnj-lib.cm
1123    
1124    The installer (config/install.sh) has been taught how to properly
1125    install this stuff.
1126    
1127    ----------------------------------------------------------------------
1128    Name: Matthias Blume
1129    Date: 2001/06/19 17:55:00 EDT
1130    Tag: blume-20010619-instantiate
1131    Description:
1132    
1133    This un-breaks the fix for bug 1432.
1134    (The bug was originally fixed in 110.9 but I broke it again some
1135    time after that.)
1136    
1137    ----------------------------------------------------------------------
1138    Name: Matthias Blume
1139    Date: 2001/06/19 17:25:00 EDT
1140    Tag: blume-20010619-signals
1141    Description:
1142    
1143    This should (hopefully) fix the long-standing signal handling bug.
1144    (The runtime system was constructing a continuation record with an
1145    incorrect descriptor which would cause the GC to drop data on the floor...)
1146    
1147    ----------------------------------------------------------------------
1148    Name: Matthias Blume
1149    Date: 2001/06/15 15:05:00 EDT
1150    Tag: blume-20010615-moresparc
1151    Description:
1152    
1153    Here is a short late-hour update related to Sparc c-calls:
1154    
1155     -- made handling of double-word arguments a bit smarter
1156    
1157     -- instruction selection phase tries to collapse certain clumsily
1158        constructed ML-Trees; typical example:
1159    
1160            ADD(ty,ADD(_,e,LI d1),LI d2)  ->  ADD(ty,e,LI(d1+d2))
1161    
1162        This currently has no further impact on SML/NJ since mlriscGen does
1163        not seem to generate such patterns in the first place, and c-calls
1164        (which did generate them in the beginning) has meanwhile been fixed
1165        so as to avoid them as well.
1166    
1167    ----------------------------------------------------------------------
1168    Name: Matthias Blume
1169    Date: 2001/06/15 15:05:00 EDT
1170    Tag: blume-20010615-sparc
1171    Description:
1172    
1173    The purpose of this update is to provide an implementation of NLFFI
1174    on Sparc machines.
1175    
1176    Here are the changes in detail:
1177    
1178       * src/MLRISC/sparc/c-calls/sparc-c-calls.sml is a new file containing
1179       the Sparc implementation of the c-calls API.
1180       * The Sparc backend of SML/NJ has been modified to uniformely use %fp
1181       for accessing the ML frame.  Thus, we have a real frame pointer and
1182       can freely modify %sp without need for an omit-frame-ptr phase.
1183       The vfp logic in src/compiler/CodeGen/* has been changed to accomodate
1184       this case.
1185       * ml-nlffigen has been taught to produce code for different architectures
1186       and calling conventions.
1187       * In a way similar to what was done in the x86 case, the Sparc
1188       backend uses its own specific extension to mltree.  (For example,
1189       it needs to be able to generate UNIMP instructions which are part
1190       of the calling convention.)
1191       * ml-nlffi-lib was reorganized to make it more modular (in particular,
1192       to make it easier to plug in new machine- and os-dependent parts).
1193    
1194    There are some other fairly unrelated bug fixes and cleanups as well:
1195    
1196       * I further hacked the .cm files for MLRISC tools (like MDLGen) so
1197       that they properly share their libraries with existing SML/NJ libraries.
1198       * I fixed a minor cosmetic bug in CM, supressing certain spurious
1199       follow-up error messages.
1200       * Updates to CM/CMB documentation.
1201    
1202    TODO items:
1203    
1204       * MLRISC should use a different register as its asmTemp on the Sparc.
1205         (The current %o2 is a really bad choice because it is part of the
1206         calling conventions, so things might interfere in unexpected ways.)
1207    
1208    ----------------------------------------------------------------------
1209    Name: Matthias Blume
1210    Date: 2001/06/07
1211    Tag: blume-20010607-calls
1212    Description:
1213    
1214    A number of internal changes related to C calls and calling conventions:
1215    
1216    1. ML-Tree CALL statements now carry a "pops" field.  It indicates the
1217       number of bytes popped implicitly (by the callee).  In most cases
1218       this field is 0 but on x86/win32 it is some non-zero value.  This
1219       is information provided for the benefit of the "omit-frameptr" pass.
1220    2. The CALL instruction on the x86 carries a similar "pops" field.
1221       The instruction selection phase copies its value from the ML-Tree
1222       CALL statement.
1223    3. On all other architectures, the instruction selection phase checks
1224       whether "pops=0" and complains if not.
1225    4. The c-calls implementation for x86 now accepts two calling conventions:
1226       "ccall" and "stdcall".  When "ccall" is selected, the caller cleans
1227       up after the call and pops is set to 0.  For "stdcall", the caller
1228       does nothing, leaving the cleanup to the callee; pops is set to
1229       the number of bytes that were pushed onto the stack.
1230    5. The cproto decoder (compiler/Semant/types/cproto.sml) now can
1231       distinguish between "ccall" and "stdcall".
1232    6. The UNIMP instruction has been added to the supported Sparc instruction
1233       set. (This is needed for implementing the official C calling convention
1234       on this architecture.)
1235    7. I fixed some of the .cm files under src/MLRISC/Tools to make them
1236       work with the latest CM.
1237    
1238    ----------------------------------------------------------------------
1239    Name: Matthias Blume
1240    Date: 2001/06/05 15:10:00 EDT
1241    Tag: blume-20010605-cm-index
1242    Description:
1243    
1244    0. The "lambdasplit" parameter for class "sml" in CM has been documented.
1245    
1246    1. CM can now generate "index files".  These are human-readable files
1247       that list on a per-.cm-file basis each toplevel symbol defined or
1248       imported.  The location of the index file for
1249       <p>/<d>.cm is <p>/CM/INDEX/<d>.cm.
1250       To enable index-file generation, set CM.Control.generate_index to true
1251       or export an environment-symbol: export CM_GENERATE_INDEX=true.
1252    
1253       The CM manual has been updated accordingly.
1254    
1255    2. I made some slight modifications to the c-calls API in MLRISC.
1256    
1257         a) There is now a callback to support saving/restoring of
1258            dedicated but caller-save registers around the actual call
1259            instruction.
1260         b) One can optionally specify a comment-annotation for the
1261            call instruction.
1262    
1263    3. SML/NJ (mlriscGen.sml) uses this new API for the rawccall primop.
1264       (For example, the comment annotation shows the C prototype of
1265        the function being called.)
1266    
1267    ----------------------------------------------------------------------
1268    Name: Matthias Blume
1269    Date: 2001/06/01 13:30:00 EDT
1270    Tag: blume-20010601-nlffi-cleanup
1271    Description:
1272    
1273    This is mostly a cleanup of MLFFI stuff:
1274    
1275       - some signature files have been put into a more exposed place
1276       - the ugly 'f type parameter is gone (simplifies types tremendously!)
1277       - ml-nlffigen changed accordingly
1278       - tutorial updated
1279    
1280    Other changes:
1281    
1282       - author's affiliation in CM manual(s) updated
1283       - some more recognized keywords added to Allen's sml.sty
1284    
1285    ----------------------------------------------------------------------
1286    Name: Matthias Blume
1287    Date: 2001/05/25 15:30:00 EDT
1288    Tag: blume-20010525-iptr
1289    Description:
1290    
1291      - put the official 110.33-README (as it appears on the ftp server) under
1292        CVS
1293      - fixed a small bug related to incomplete pointer types in
1294        ml-nlffigen
1295      - small cosmetic change to the ml-nlffi-lib's "arr" type constructor
1296        (it does not need the 'f type parameter)
1297    
1298    ----------------------------------------------------------------------
1299    Name: Matthias Blume
1300    Date: 2001/05/23 14:30:00 EDT
1301    Tag: Release_110_33
1302    Description:
1303    
1304    New version number (110.33).  New bootfiles.
1305    
1306    ----------------------------------------------------------------------
1307    Name: Matthias Blume
1308    Date: 2001/05/22 18:06:00 EDT
1309    Tag: blume-20010522-targets
1310    Description:
1311    
1312    Made install.sh use file config/targets.customized if it exists, falling
1313    back to config/targets if it doesn't.  This way one can have a customized
1314    version of the targets file without touching the "real thing", thus
1315    eliminating the constant fear of accidentally checking something bogus
1316    back into the CVS repository...  (File config/targets.customized must
1317    not be added to the repository!)
1318    
1319    ----------------------------------------------------------------------
1320    Name: Matthias Blume
1321    Date: 2001/05/22 16:30:00 EDT
1322    Tag: blume-20010522-minitut
1323    Description:
1324    
1325    1. Bug fix in ml-nlffigen; now (hopefully) correctly handling
1326       struct returns.
1327    2. Added src/ml-nlffi-lib/Doc/mini-tutorial.txt.  This is some very
1328       incomplete, preliminary documentation for NLFFI.
1329    
1330    ----------------------------------------------------------------------
1331    Name: Matthias Blume
1332    Date: 2001/05/14 11:30:00 EDT
1333    Tag: blume-20010514-script
1334    Description:
1335    
1336    Some bugs in install script fixed.
1337    
1338    In addition to that I also made a slight change to the NLFFI API:
1339    Functors generated by ml-nlffigen now take the dynamic library as a
1340    straight functor argument, not as a suspended one.  (The original
1341    functor code used to force the suspension right away anyway, so there
1342    was nothing gained by this complication of the interface.)
1343    
1344    ----------------------------------------------------------------------
1345    Name: Matthias Blume
1346    Date: 2001/05/11 14:35:00 EDT
1347    Tag: blume-20010511-ml-nlffi
1348    Description:
1349    
1350    I finally took the plunge and added my new FFI code to the main
1351    repository.  For x86-linux it is now ready for prime-time.
1352    
1353    There are two new subdirectories of "src":
1354    
1355      - ml-nlffi-lib:
1356           The utility library for programs using the FFI interface.
1357           Here is the implementation of $/c.cm and its associated low-level
1358           partners $/c-int.cm and $/memory.cm.
1359      - ml-nlffigen:
1360           A stand-alone program for generating ML glue code from C source
1361           code.
1362    
1363    Building ml-nlffigen requires $/ckit-lib.cm.
1364    
1365    The config/install.sh script has been updates to do the Right Thing
1366    (hopefully).
1367    
1368    Notice that the source tree for the C-Kit will not be put under "src"
1369    but directly under the installation root directory.  (This is the
1370    structure that currently exists on the CVS server when you check out
1371    module "sml".)  Fortunately, config/install.sh knows about this oddity.
1372    
1373    Bugs: No documentation yet.
1374    
1375    ----------------------------------------------------------------------
1376    Name: Matthias Blume
1377    Date: 2001/05/09 16:35:00 EDT
1378    Tag: blume-20010509-cpscontract
1379    Description:
1380    
1381    Fixed a bug in the accounting code in cpsopt/contract.sml.  (The
1382    wrapper/unwrapper elimination did not decrement usage counts and some
1383    dead variables got overlooked by the dead-up logic.)
1384    
1385    ----------------------------------------------------------------------
1386    Name: Lal George
1387    Date: 2001/05/08  17:26:09 EDT
1388    Tag: george-20010508-omit-frameptr
1389    Description:
1390    
1391    Changes to implement the omit-frame-pointer optimization to support
1392    raw C calls. For now, there is only support on the Intel x86, but
1393    other architectures will follow as more experience is gained with this.
1394    
1395    
1396    ----------------------------------------------------------------------
1397    Name: Matthias Blume
1398    Date: 2001/05/07 14:40:00 EDT
1399    Tag: blume-20010507-proxies
1400    Description:
1401    
1402    I made into "proxy libraries" all libraries that qualify for such a
1403    change.  (A qualifying library is a library that has another library or
1404    groups as its sole member and repeats that member's export list
1405    verbatim.  A proxy library avoids this repetition by omitting its export
1406    list, effectively inheriting the list that its (only) member exports.
1407    See the CM manual for more explanation.)
1408    The main effect is that explicit export lists for these libraries
1409    do not have to be kepts in sync, making maintenance a bit easier.
1410    
1411    I also added copyright notices to many .cm-files.
1412    
1413    Last but not least, I made a new set of bootfiles.
1414    
1415    ----------------------------------------------------------------------
1416    Name: Matthias Blume
1417    Date: 2001/05/04 17:00:00 EDT
1418    Tag: blume-20010504-cm-lsplit
1419    Description:
1420    
1421    0. John merged pending changes to $/smlnj-lib.cm
1422    
1423    1. Allen's previous change accidentally backed out of one of Lal's
1424       earlier changes.  I undid this mistake (re-introducing Lal's change).
1425    
1426    2. I used the new topOrder' function from graph-scc.sml (from $/smlnj-lib.cm)
1427       within the compiler where applicable.  There is some code simplification
1428       because of that.
1429    
1430    3. The "split" phase (in FLINT) is now part of the default list of phases.
1431       Compiler.Control.LambdaSplitting.* can be used to globally control the
1432       lambda-splitting (cross-module-inlining) engine.  In addition to that,
1433       it can now also be controlled on a per-source basis: CM has been taught
1434       a new tool parameter applicable to ML source files.
1435    
1436       - To turn lambda-splitting off completely:
1437            local open Compiler.Control.LambdaSplitting in
1438                val _ = set Off
1439            end
1440       - To make "no lambda-splitting" the global default (but allow per-source
1441         overriding); this is the initial setting:
1442            local open Compiler.Control.LambdaSplitting in
1443                val _ = set (Default NONE)
1444            end
1445       - To make "lambda-splitting with aggressiveness a" the global default
1446         (and allow per-source overriding):
1447            local open Compiler.Control.LambdaSplitting in
1448                val _ = set (Default (SOME a))
1449            end
1450    
1451       - To turn lambda-splitting off for a given ML souce file (say: a.sml)
1452         write (in the respective .cm-file):
1453            a.sml (lambdasplitting:off)
1454       - To turn lambda-splitting for a.sml on with minimal aggressiveness:
1455            a.sml (lambdasplitting:on)
1456       - To turn lambda-splitting for a.sml on with aggressiveness <a> (where
1457         <a> is a decimal non-negative integer):
1458            a.sml (lambdasplitting:<a>)
1459       - To turn lambda-splitting for a.sml on with maximal aggressiveness:
1460            a.sml (lambdasplitting:infinity)
1461       - To use the global default for a.sml:
1462            a.sml (lambdasplitting:default)
1463         or simply
1464            a.sml
1465    
1466    ----------------------------------------------------------------------
1467    Name: Allen Leung
1468    Date: 2001/05/04 01:57:00 EDT
1469    Tag: leunga-20010504-sync
1470    Description:
1471    
1472      MLRISC features.
1473    
1474      1. Fix to CMPXCHG instructions.
1475      2. Changed RA interface to allow annotations in callbacks.
1476      3. Added a new method to the stream interface to allow annotations updates.
1477    
1478    ----------------------------------------------------------------------
1479    Name: Matthias Blume
1480    Date: 2001/05/01 11:45:00 EDT
1481    Tag: blume-20010501-pcedittmp
1482    Description:
1483    
1484    Changed install.sh to use the current working directory instead of
1485    /usr/tmp for a temporary file (pcedittmp).  The previous choice
1486    of /usr/tmp caused trouble with MacOS X because of file premission
1487    problems.
1488    
1489    ----------------------------------------------------------------------
1490    Name: Matthias Blume
1491    Date: 2001/04/20 11:10:00 EDT
1492    Tag: blume-20010420-inMLflag
1493    Description:
1494    
1495     - added vp_limitPtrMask to vproc-state.h
1496       (for use by the raw-C-calls mechanism to implement proper interrupt
1497        handling)
1498     - made the ML compiler aware of various data-structure offsets so it
1499       can generate code for accessing the vp_inML flag and vp_limitPtrMask
1500     - tweaked mlriscGen.sml to have it emit interrupt-handling code for
1501       raw C-calls
1502    
1503    ----------------------------------------------------------------------
1504    Name: Lal George
1505    Date: 2001/04/20 09:15:28 EDT
1506    Tag: george-20010420-macosX
1507    Description:
1508    
1509     - Changes to port to Mac OS X; Darwin.
1510    
1511     - In the process I found that sqrt was broken on the PPC, because the
1512       fsqrt instruction is not implemented.
1513    
1514    ----------------------------------------------------------------------
1515    Name: Matthias Blume
1516    Date: 2001/04/18 12:45:00 EDT
1517    Tag: blume-20010418-ccalls
1518    Description:
1519    
1520     - fixed two off-by-4 errors in the x86-specific c-calls implementation
1521       (this bug prevented structure arguments containing pointers from being
1522        passed correctly)
1523     - changed the raw-C-call code in mlriscGen.sml in such a way that
1524       structure arguments are represented as a pointer to the beginning
1525       of the structure (instead of having a series of synthesized arguments,
1526       one for each structure member)
1527    
1528     - made makeml script's verbosity level configurable via environment
1529       variable (MAKEML_VERBOSITY)
1530    
1531     - eliminated placeholder implementations for f32l, w16s, i16s, and f32s
1532       in rawmem-x86.sml; we are now using the real thing
1533    
1534    ----------------------------------------------------------------------
1535    Name: Matthias Blume
1536    Date: 2001/03/22 16:25:00 EST
1537    Tag: blume-20010322-bootfiles
1538    Description:
1539    
1540    Created a new set of bootfiles (for your automatic installation convenience).
1541    
1542    ----------------------------------------------------------------------
1543    Name: Matthias Blume
1544    Date: 2001/03/22 15:10:00 EST
1545    Tag: blume-20010322-rawmem-parcm
1546    Description:
1547    
1548    1. All "raw memory access" primitives for the new FFI are implemented now
1549       (at least on the x86).
1550    2. Some further cleanup of CM's parallel make mechanism.
1551    
1552    ----------------------------------------------------------------------
1553    Name: Matthias Blume
1554    Date: 2001/03/19 17:53:00 EST
1555    Tag: blume-20010319-parallel
1556    Description:
1557    
1558    Parallel make (using compile servers) now works again.
1559    
1560    To this end, CM.stabilize and CMB.make have been modified to work in
1561    two passes when compile servers are attached:
1562       1. Compile everything, do not perform stabilization; this pass
1563          uses compile servers
1564       2. Stabilize everything; this pass does not use compile servers
1565    If there are no compile servers, the two passes are combined into one
1566    (as before).  Splitting the passes increases the inherent parallelism
1567    in the dependency graph because the entire graph including all
1568    libraries is available at the same time.  This, in turn, improves
1569    server utilization.  The downside is that the master process will
1570    have to do some extra work after compilation is done (because for
1571    technical reasons it must re-read all the binfiles during stabilization).
1572    
1573    ----------------------------------------------------------------------
1574    Name: Matthias Blume
1575    Date: 2001/03/16 12:22:00 EST
1576    Tag: blume-20010316-bootfiles
1577    Description:
1578    
1579    Created a new set of bootfiles (for your automatic installation convenience).
1580    
1581    ----------------------------------------------------------------------
1582    Name: Matthias Blume
1583    Date: 2001/03/16 11:00:00 EST
1584    Tag: blume-20010316-MLTREE-fixup
1585    Description:
1586    
1587    This is a minor fixup for an (untagged) earlier commit by Allen.
1588    (A file was missing).
1589    
1590    ----------------------------------------------------------------------
1591    Name: Allen Leung
1592    Date: Mon Mar  5 18:54:57 EST 2001
1593    Tag: leunga-20010305-cut-support
1594    
1595    1. New support for alternative control-flow in MLTREE.
1596       Currently we support
1597    
1598          FLOW_TO(CALL ...., [k1,...,kn])
1599    
1600       This is needed for 'cuts to' in C-- and try/handle-like constructs
1601       in Moby
1602    
1603       New assembler flag "asm-show-cutsto" to turn on control-flow debugging.
1604    
1605    2. Register Allocator
1606    
1607       Changes in interface [from Fermin, John]
1608    
1609    3. Alpha 8-bit SLL support [Fermin]
1610    
1611    4. All architectures
1612    
1613       A new module (ClusterExpandCopies) for expanding parallel copies.
1614    
1615    ----------------------------------------------------------------------
1616    Name: Allen Leung
1617    Date: 2001/02/27 23:07:00 EST
1618    Tag: leunga-20010227-minor-stuff
1619    
1620    1. Alpha bug fix for CMOVNE
1621    2. Handle mltree COND(..,FCMP ...,...)
1622    3. Bug fix in simplifier
1623    
1624    ----------------------------------------------------------------------
1625    Name: Matthias Blume
1626    Date: 2001/01/30 17:50:00 EST
1627    Tag: blume-20010130-sync
1628    Description:
1629    
1630    This is just a minor update to sync my devel branch with the main brach.
1631    The only visible change is the addition of some README files.
1632    
1633    ----------------------------------------------------------------------
1634    Name: Matthias Blume
1635    Date: 2001/01/12 23:30:00 JST
1636    Tag: blume-20010112-bootfiles
1637    Description:
1638    
1639    Made a new set of bootfiles that goes with the current state of the
1640    repository.
1641    
1642    ----------------------------------------------------------------------
1643    Name: Matthias Blume
1644    Date: 2001/01/12 21:20:00 JST
1645    Tag: blume-20010112-sync
1646    Description:
1647    
1648    I am just flushing out some minor changes that had accumulated in
1649    my private branch in order to sync with the main tree.  (This is
1650    mainly because I had CVS trouble when trying to merge _into_ my
1651    private branch.)
1652    
1653    Most people should be completely unaffected by this.
1654    
1655    ----------------------------------------------------------------------
1656    Name: Allen Leung
1657    Date: Thu Jan 11 21:03:00 EST 2001
1658    Tag: leunga-20010111-labexp=mltree
1659    Description:
1660    
1661    1.  Removed the type LabelExp and replace it by MLTree.
1662    2.  Rewritten mltree-simplify with the pattern matcher tool.
1663    3.  There were some bugs in alpha code generator which would break
1664        64-bit code generation.
1665    4.  Redo the tools to generate code with the
1666    5.  The CM files in MLRISC (and in src/system/smlnj/MLRISC)
1667        are now generated by perl scripts.
1668    
1669    ----------------------------------------------------------------------
1670    Name: Matthias Blume
1671    Date: 2001/01/10 21:55:00 JST
1672    Tag: blume-20010110-rcc
1673    Description:
1674    
1675    The RCC stuff now seems to work (but only on the x86).
1676    This required hacking of the c-calls interface (and -implementation) in
1677    MLRISC.
1678    
1679    Normal compiler users should be unaffected.
1680    
1681    ----------------------------------------------------------------------
1682    Name: Matthias Blume
1683    Date: 2001/01/09 01:20:00 JST
1684    Tag: blume-20010109-rcc
1685    Description:
1686    
1687    This is a fairly big patch, flushing out a large number of pending
1688    changes that I made to my development copy over the last couple of days.
1689    
1690    Of practical relevance at this moment is a workaround for a pickling
1691    bug that Allen ran into the other day.  The cause of the bug itself is
1692    still unknown and it might be hard to fix it properly, but the
1693    workaround has some merits of its own (namely somewhat reducing pickling
1694    overhead for certain libraries).  Therefore, I think this solution should
1695    be satisfactory at this time.
1696    
1697    The rest of the changes (i.e., the vast majority) has to do with my
1698    ongoing efforts of providing direct support for C function calls from
1699    ML.  At the moment there is a new primop "RAW_CCALL", typing magic
1700    in types/cproto.sml (invoked from FLINT/trans/translate.sml), a new
1701    case in the FLINT CPS datatype (RCC), changes to cps/convert.sml to
1702    translate uses of RAW_CCALL into RCC, and changes to mlriscGen.sml to
1703    handle RCC.
1704    
1705    The last part (the changes to mlriscGen.sml) are still known to be
1706    wrong on the x86 and not implemented on all other architectures.  But
1707    the infrastructure is in place. I had to change a few functor
1708    signatures in the backend to be able to route the CCalls interface
1709    from MLRISC there, and I had to specialize the mltree type (on the
1710    x86) to include the necessary extensions. (The extensions themselves
1711    were already there and redy to go in MLRISC/x86).
1712    
1713    Everything should be very happy as soon as someone helps me with
1714    mlriscGen.sml...
1715    
1716    In any case, nothing of this should matter to anyone as long as the
1717    new primop is not being used (which is going to be the case unless you
1718    find it where I hid it :). The rest of the compiler is completely
1719    unaffected.
1720    
1721    ----------------------------------------------------------------------
1722    Name: Matthias Blume
1723    Date: 2001/01/05 00:30:00 JST
1724    Tag: blume-20010105-primops
1725    Description:
1726    
1727    Added some experimental support for work that I am doing right now.
1728    These changes mostly concern added primops, but there is also a new
1729    experimental C library in the runtime system (but currently not enabled
1730    anywhere except on Linux/X86).
1731    
1732    In the course of adding primops (and playing with them), I discovered that
1733    Zhong's INL_PRIM hack (no type info for certain primops) was, in fact, badly
1734    broken.  (Zhong was very right he labeled this stuff as "major gross hack".)
1735    To recover, I made type information in INL_PRIM mandatory and changed
1736    prim.sml as well as built-in.sml accordingly.  The InLine structure now
1737    has complete, correct type information (i.e., no bottom types).
1738    
1739    Since all these changes mean that we need new binfiles, I also bumped the
1740    version number to 110.32.1.
1741    
1742    ----------------------------------------------------------------------
1743    Name: Matthias Blume
1744    Date: 2000/12/30 22:10:00 JST
1745    Tag: blume-20001230-various
1746    Description:
1747    
1748    Added proxy libraries for MLRISC and let MLRISC libraries refer
1749    to each other using path anchors.  (See CM manual for explanation.)
1750    
1751    Updated CM documentation.
1752    
1753    Fixed some bugs in CM.
1754    
1755    Implemented "proxy" libraries (= syntactic sugar for CM).
1756    
1757    Added "-quiet" option to makeml and changed runtime system accordingly.
1758    
1759    Added cleanup handler for exportML to reset timers and compiler stats.
1760    
1761    ----------------------------------------------------------------------
1762    Name: Lal George
1763    Date: 2000/12/22 22:22:58 EST 2000
1764    Tag: Release_110_32
1765    Description:
1766    
1767            Infinite precision used throughout MLRISC.
1768            see MLRISC/mltree/machine-int.sig
1769    
1770    ----------------------------------------------------------------------
1771    Name: Matthias Blume
1772    Date: 2000/12/22 23:16:00 JST
1773    Tag: blume-20001222-warn
1774    Description:
1775    
1776    Corrected wording and formatting of some CM warning message which I
1777    broke in my previous patch.
1778    
1779    ----------------------------------------------------------------------
1780    Name: Matthias Blume
1781    Date: 2000/12/22 21:20:00 JST
1782    Tag: blume-20001222-anchorenv
1783    Description:
1784    
1785    Fixed CM's handling of anchor environments in connection with CMB.make.
1786    
1787    ----------------------------------------------------------------------
1788    Name: Matthias Blume
1789    Date: 2000/12/22 13:15:00 JST
1790    Tag: blume-20001222-cleanup
1791    Description:
1792    
1793    Removed src/cm/ffi which does not (and did not) belong here.
1794    
1795    ----------------------------------------------------------------------
1796    Name: Matthias Blume
1797    Date: 2000/12/21 23:55:00 JST
1798    Tag: blume-20001221-exn
1799    Description:
1800    
1801    Probably most important: CM no longer silently swallows all exceptions
1802    in the compiler.
1803    Plus: some other minor CM changes.  For example, CM now reports some
1804    sizes for generated binfiles (code, data, envpickle, lambdapickle).
1805    
1806    ----------------------------------------------------------------------
1807    Name: Matthias Blume
1808    Date: 2000/12/15 00:01:05 JST
1809    Tag: blume-20001215-dirtool
1810    Description:
1811    
1812    - "dir" tool added.
1813    - improvements and cleanup to Tools structure
1814    - documentation updates
1815    
1816    ----------------------------------------------------------------------
1817    Name: Allen Leung
1818    Date: Thu Dec 14 03:45:24 EST 2000
1819    Description:
1820    Tag:  leunga-20001214-int-inf
1821    Description:
1822    
1823       In IntInf, added these standard functions, which are missing from our
1824    implementation:
1825    
1826        andb : int * int -> int
1827        xorb : int * int -> int
1828        orb  : int * int -> int
1829        notb : int -> int
1830         <<   : int * word -> int
1831        ~>>  : int * word -> int
1832    
1833       Not tested, I hope they are correct.
1834    
1835    ----------------------------------------------------------------------
1836    Name: Allen Leung
1837    Date: Fri Dec  8 19:23:26 EST 2000
1838    Description:
1839    Tag:  leunga-20001208-nowhere
1840    Description:
1841    
1842      Slight improvements to the 'nowhere' tool to handle OR-patterns,
1843    to generate better error messages etc.  Plus a brief manual.
1844    
1845    ----------------------------------------------------------------------
1846    Name: Lal George
1847    Date: 2000/12/08 09:54:02 EST 2000
1848    Tag: Release_110_31
1849    Description:
1850    
1851    - Version 110.31
1852    ----------------------------------------------------------------------
1853    Name: Allen Leung
1854    Date: Thu Dec  7 22:01:04 EST 2000
1855    Tag:  leunga-20001207-cell-monster-hack
1856    Description:
1857    
1858    Major MLRISC internal changes.  Affect all clients.
1859    Summary:
1860    
1861    1.  Type CELLS.cell = int is now replaced by a datatype.
1862        As a result, the old regmap is now gone.  Almost all interfaces
1863        in MLRISC change as a consequence.
1864    
1865    2.  A new brand version of machine description tool (v3.0) that generates
1866        modules expecting the new interface.  The old version is removed.
1867    
1868    3.  The RA interface has been further abstracted into two new functors.
1869        RISC_RA and X86RA.  These functors have much simpler interfaces.
1870        [See also directory MLRISC/demo.]
1871    
1872    4.  Some other new source->source code generation tools are available:
1873    
1874        a. MLRISC/Tools/RewriteGen -- generate rewriters from rules.
1875        b. MLRISC/Tools/WhereGen -- expands conditional pattern matching rules.
1876           I use this tool to generate the peephole optimizers---with the new
1877           cell type changes, peephole rules are becoming difficult to write
1878           without conditional pattern matching.
1879    
1880    5.  More Intmap -> IntHashTable change.  Previous changes by Matthias didn't
1881        cover the entire MLRISC source tree so many things broke.
1882    
1883    6.  CM files have been moved to the subdirectory MLRISC/cm.
1884        They are moved because there are a lot of them and they clutter up the
1885        root dir.
1886    
1887    7.  More detailed documentation to come...
1888    
1889        NOTE: To rebuild from 110.30 (ftp distribution), you'll have to do
1890        a makeml -rebuild first.  This is because of other other
1891        changes that Matthias has made (see below).
1892    
1893    
1894    ----------------------------------------------------------------------
1895    Name: Matthias Blume
1896    Date: 2000/11/30 23:12:00 JST
1897    Tag: blume-20001130-filereorg
1898    Description:
1899    
1900    Some manual updates and some file reorganizations in CM.
1901    
1902    ----------------------------------------------------------------------
1903    Name: Matthias Blume
1904    Date: 2000/11/24 17:45:00 JST
1905    Tag: blume-20001124-link
1906    Description:
1907    
1908    Drastically improved link traversal code for the case that the dynamic
1909    value was already loaded at bootstrap time.  As a result, CM and CMB
1910    now both load blazingly fast -- even on a very slow machine.  Also,
1911    memory consumption has been further reduced by this.
1912    
1913    Warning: The format of the PIDMAP file has changed.  THerefore, to
1914    bootstrap you have to do this:
1915    
1916    1. Run CMB.make
1917    2. Make a symbolic link for the boot directory:
1918         ln -s sml.boot.ARCH-OS xxx
1919    3. "Rebuild" the boot directory:
1920         ./makeml -boot xxx -rebuild sml ; rm xxx
1921    4. Boot normally:
1922          ./makeml
1923    
1924    ----------------------------------------------------------------------
1925    Name: Matthias Blume
1926    Date: 2000/11/21 21:20:00 JST
1927    Tag: blume-20001121-tools
1928    Description:
1929    
1930    Continued hacking on autoloading problem -- with success this time.
1931    Also changed tool-plugin mechanism.  See new CM manual.
1932    
1933    ----------------------------------------------------------------------
1934    Name: Matthias Blume
1935    Date: 2000/11/19 14:30:00 JST
1936    Tag:  blume-20001119-autoload
1937    Description:
1938    
1939    Some hacking to make autoloading faster.  Success for CMB, no success
1940    so far for CM.  There is a reduced structure CM' that autoloads faster.
1941    (This is a temporary, non-documented hack to be eliminated again when
1942    the general problem is solved.)
1943    
1944    ----------------------------------------------------------------------
1945    Name: Matthias Blume
1946    Date: 2000/11/17 14:10:00 JST
1947    Tag: blume-20001117-pickle-lib
1948    Description:
1949    
1950    1. Eliminated comp-lib.cm
1951    2. Made pickle-lib.cm
1952    3. Eliminated all uses of intset.sml (from comp-lib.cm)
1953    4. Replaced all uses of intmap.{sig,sml} (from comp-lib.cm) with
1954       equivalent constructs from smlnj-lib.cm (INtHashTable).
1955    5. Point 4. also goes for those uses of intmap.* in MLRISC.
1956       Duplicated intmap modules thrown out.
1957    6. Hunted down all duplicated SCC code and replaced it with
1958       equivalent stuff (GraphSCCFn from smlnj-lib.cm).
1959    7. Rewrote Feedback module.
1960    8. Moved sortedlist.sml into viscomp-lib.cm.  Eventually it
1961       should be thrown out and equivalent modules from smlnj-lib.cm
1962       should be used (IntRedBlackSet, IntListSet, ...).
1963    
1964    Confirmed that compiler compiles to fixpoint.
1965    
1966    ----------------------------------------------------------------------
1967    Name: Allen Leung
1968    Date: 2000/11/10 18:00:00
1969    Tag: leunga-20001110-new-x86-fp
1970    
1971    A new x86 floating point code generator has been added.
1972    By default this is turned off.  To turn this on, do:
1973    
1974        CM.autoload "$smlnj/compiler.cm";
1975        Compiler.Control.MLRISC.getFlag "x86-fast-fp" := true;
1976    
1977    Changes:
1978    
1979    1.  Changed FTAN to FPTAN so that the assembly output is correct.
1980    2.  Changed the extension callback for FTANGENT to generate:
1981    
1982              fptan
1983              fstp  %st(0)
1984        instead of
1985              fptan
1986              fstpl ftempmem
1987    
1988    3.  Numerous assembly fixes for x86.
1989    
1990    5.  Cleaned up the machine code output module x86/x86MC.sml and added
1991        support for a whole bunch of instructions and addressing modes:
1992    
1993          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st, %st(n)
1994          faddp/fsubp/fsubrp/fmulp/fdivp/fdivrp  %st, %st(n)
1995          fadd/fsub/fsubr/fmul/fdiv/fdivr  %st(n), %st
1996          fiadd/fisub/fisubr/fimul/fidiv/fidivr mem
1997          fxch %st(n)
1998          fld %st(n)
1999          fst %st(n)
2000          fst mem
2001          fstp %st(n)
2002          fucom %st(n)
2003          fucomp %st(n)
2004    
2005        All these are now generated when the fast fp mode is turned on.
2006    
2007    6.  Removed the dedicated registers %st(0), ..., %st(7) from X86CpsRegs
2008    
2009    ----------------------------------------------------------------------
2010    Name: Matthias Blume
2011    Date: 2000/11/09 11:20:00 JST
2012    Tag: blume-20001109-scc
2013    Description:
2014    
2015    Eliminated some code duplication:
2016    
2017    1. Added "where" clause to GraphSCCFn in SML/NJ Library.
2018       (Otherwise the functor is useless.)
2019    2. Used GraphSCCFn where SCCUtilFun was used previously.
2020    3. Got rid of SCCUtilFun (in comp-lib.cm).
2021    
2022    ----------------------------------------------------------------------
2023    Name: Lal George
2024    Date: 2000/11/06 09:02:21 EST 2000
2025    Tag: Release_110_30
2026    Description:
2027    
2028    - Version 110.30
2029    ----------------------------------------------------------------------
2030    Name: Matthias Blume
2031  Date: 2000/11/04 14:45:00  Date: 2000/11/04 14:45:00
2032  Tag: blume-20001104-mlbuild  Tag: blume-20001104-mlbuild
2033  Description:  Description:
# Line 1547  Line 3561 
3561       elaborator). There were a lot of changes during my "linkpath" trials       elaborator). There were a lot of changes during my "linkpath" trials
3562       that could have been reverted to their original state but weren't.       that could have been reverted to their original state but weren't.
3563       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
3564       than what was strictly necessary...  (I _did_ resist the tempation       than what was strictly necessary...  (I _did_ resist the temptation
3565       of doing any "global reformatting" to avoid an untimely death at       of doing any "global reformatting" to avoid an untimely death at
3566       Dave's hands. :)       Dave's hands. :)
3567    

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