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revision 902, Wed Aug 15 21:17:05 2001 UTC revision 1064, Thu Feb 14 03:40:24 2002 UTC
# Line 8  Line 8 
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: 2002/02/13 22:40:00 EST
18    Tag: blume-20020213-fptr-rtti
19    Description:
20    
21    Fixed a bug in ml-nlffigen that was introduced with one of the previous
22    updates.
23    
24    ----------------------------------------------------------------------
25    Name: Matthias Blume
26    Date: 2002/02/13 16:41:00 EST
27    Tag: blume-20020213-cmlpq
28    Description:
29    
30    Added new priority queue export symbols (which have just been added to
31    smlnj-lib.cm) to CML's version of smlnj-lib.cm.  (Otherwise CML would
32    not compile and the installer would choke.)
33    
34    ----------------------------------------------------------------------
35    Name: Matthias Blume
36    Date: 2002/02/13 16:15:00 EST
37    Tag: blume-20020213-various
38    Description:
39    
40    1. More tweaks to ml-nlffigen:
41    
42       - better internal datastructures (resulting in slight speedup)
43       - "-match" option requires exact match
44       - "localized" gensym counters (untagged structs/unions nested within
45         other structs/unions or within typedefs get a fresh counter; their
46         tag will be prefixed by a concatenation of their parents' tags)
47       - bug fixes (related to calculation of transitive closure of types
48         to be included in the output)
49    
50    2. Minor Basis updates:
51    
52       - added implementations for List.collate and Option.app
53    
54    ----------------------------------------------------------------------
55    Name: Matthias Blume
56    Date: 2002/02/11 15:55:00 EST
57    Tag: blume-20020211-gensym
58    Description:
59    
60    Added a "-gensym" option to command line of ml-nlffigen.  This can be
61    used to specify a "stem" -- a string that is inserted in all "gensym'd"
62    names (ML structure names that correspond to unnamed C structs, unions,
63    and enums), so that separate runs of ml-nlffigen do not clash.
64    
65    ----------------------------------------------------------------------
66    Name: Matthias Blume
67    Date: 2002/02/11 12:05:00 EST
68    Tag: blume-20020211-gensml
69    Description:
70    
71    A quick fix for a problem with GenSML (in the pgraph-util library):
72    Make generation of toplevel "local" optional.  (Strictly speaking,
73    signature definitions within "local" are not legal SML.)
74    
75    Other than that: updates to INSTALL and cm/TODO.
76    
77    ----------------------------------------------------------------------
78    Name: Matthias Blume
79    Date: 2002/02/08 15:00:00 EST
80    Tag: blume-20020208-uniquepid
81    Description:
82    
83    0. Version number has been bumped to 110.38.1.  NEW BOOTFILES!!!
84    
85    1. The installer (config/install.sh) has gotten smarter:
86    
87         - Configuration options are a bit easier to specify now
88           (in config/targets).
89         - Bug in recognizing .tar.bz2 files fixed.
90         - Installer automatically resolves dependencies between
91           configuration options (e.g., if you ask for eXene, you will
92           also get cml -- regardless whether you asked for it or not).
93         - Installer can run in "quieter mode" by setting the environment
94           variable INSTALL_QUIETLY to "true".  "Quieter" does not mean
95           "completely silent", though.
96         - Build HashCons library as part of smlnj-lib.
97    
98    2. A new scheme for assigning persistent identifiers to compilation
99       units (and, by extension, to types etc.) has been put into place.
100       This fixes a long-standing bug where types and even dynamic values
101       can get internally confused, thereby compromising type safety
102       (abstraction) and dynamic correctness.  See
103    
104         http://cm.bell-labs.com/cm/cs/who/blume/pid-confusion.tgz
105    
106       for an example of how things could go wrong until now.
107    
108       The downside of the new scheme is that pids are not quite as
109       persistent as they used to be: CM will generate a fresh pid
110       for every compilation unit that it thinks it sees for the first
111       time.  That means that if you compile starting from a clean, fresh
112       source tree at two different times, you end up with different
113       binaries.
114    
115       Cutoff recompilation, however, has not been compromised because
116       CM keeps pid information in special caches between runs.
117    
118    ----------------------------------------------------------------------
119    Name: Lal George
120    Date: 2002/02/07 15:34:13 EST 2002
121    Tag: <none>
122    Description:
123    
124    Compilers that generate assembly code may produce  global labels
125    whose value is resolved at link time. The various peephole optimization
126    modules did not take this in account.
127    
128    TODO. The Labels.addrOf function should really return an option
129    type so that clients are forced to deal with this issue, rather
130    than an exception being raised.
131    
132    ----------------------------------------------------------------------
133    Name: Lal George
134    Date: 2002/02/06 13:55:02 EST
135    Tag: george-20020206-ra-breakup
136    Description:
137    
138    1. A bug fix from Allen.
139    
140        A typo causes extra fstp %st(0)'s to be generated at compensation
141        edges, which might cause stack underflow traps at runtime.  This
142        occurs in fft where there are extraneous fstps right before the 'into'
143        trap instruction (in this case they are harmless since none of the
144        integers overflow.)
145    
146    2. Pulled out various utility modules that were embedded in the modules
147       of the register allocator. I need these modules for other purposes, but
148       they are not complete enough to put into a library (just yet).
149    ----------------------------------------------------------------------
150    Name: Matthias Blume
151    Date: 2002/01/31 16:05:00 EST
152    Tag: blume-20020131-sparc-ccalls
153    Description:
154    
155    1. C-calls on Sparc needlessly allocated a huge chunk (96 bytes)
156       of extra stack space by mistake.  Fixed.
157    
158    2. Bug in logic of handling of command-line options in ml-nlffigen fixed.
159    
160    ----------------------------------------------------------------------
161    Name: Allen Leung
162    Date: 2002/01/30
163    Tag: leunga-20020130-nowhere-bug-fix
164    Description:
165    
166       MLRISC bug fixes:
167       1. Fixed a bindings computation bug in the 'nowhere' program generator tool.
168       2. MachineInt.fromString was negating its value.
169    
170    ----------------------------------------------------------------------
171    Name: Matthias Blume
172    Date: 2002/01/29
173    Tag: blume-20020129-INSTALL
174    Description:
175    
176    - Added somewhat detailed installation instructions (file INSTALL).
177    - Fixed curl-detection bug in config/install.sh.
178    - It is now possible to select the URL getter using the URLGETTER
179      environment variable:
180    
181          not set / "unknown"      --> automatic detection (script tries wget,
182                                       curl, and lynx)
183          "wget" / "curl" / "lynx" --> use the specified program (script "knows"
184                                       how to properly invoke them)
185          other                    --> use $URLGETTER directly, it must take
186                                       precisely two command-line arguments
187                                       (source URL and destination file name)
188    
189    ----------------------------------------------------------------------
190    Name: Matthias Blume
191    Date: 2002/01/28
192    Tag: blume-20020128-sparc-ccalls
193    Description:
194    
195    - Fixed problem with calculation of "used" registers in sparc-c-calls.
196    - Make use of the allocParam argument in sparc-c-calls.
197    
198    ----------------------------------------------------------------------
199    Name: Matthias Blume
200    Date: 2002/01/28
201    Tag: blume-20020128-allocParam
202    Description:
203    
204    John Reppy:  Changes c-calls API to accept client-callback for
205    allocating extra stack space.
206    me: Corresponding changes to mlriscGen (using a dummy argument that
207        does not change the current behavior).
208    
209    ----------------------------------------------------------------------
210    Name: Matthias Blume
211    Date: 2002/01/28 12:00:00
212    Tag: Release_110_38
213    Description:
214    
215    This time for real!!!
216    
217    ----------------------------------------------------------------------
218    Name: Matthias Blume
219    Date: 2002/01/28 10:56:00 EST
220    Tag: blume-20020128-retraction
221    Description:
222    
223    0. Retracted earlier 110.38.  (The Release_110_38 tag has been replaced
224       with blume-Release_110_38-retracted.)
225    
226    1. Fixed a problem with incorrect rounding modes in real64.sml.
227       (Thanks to Andrew Mccreight <andrew.mccreight@yale.edu>.)
228    
229    2. A bug in ml-nlffigen related to the handling of unnamed structs, unions,
230       and enums fixed.  The naming of corresponding ML identifiers should
231       now be consistent again.
232    
233    ----------------------------------------------------------------------
234    Name: Allen Leung
235    Date: 2002/01/27
236    Tag: leunga-20020127-nowhere
237    Description:
238    
239       Added a target called nowhere in the configuration scripts.
240       Enabling this will build the MLRISC 'nowhere' tool (for translating
241       programs with where-clauses into legal SML code) during installation.
242    
243    ----------------------------------------------------------------------
244    Name: Matthias Blume
245    Date: 2002/01/25 21:27:00 EST
246    Tag: blume-Release_110_38-retracted
247    Description:
248    
249    Call it a (working) release!  Version is 110.38. Bootfiles are ready.
250    
251    README will be added later.
252    
253    !!! NOTE:  Re-tagged as blume-Release_110_38-retracted. Original tag
254    (Release_110_38) removed.  Reason: Last-minute bug fixes.
255    
256    ----------------------------------------------------------------------
257    Name: Matthias Blume
258    Date: 2002/01/25
259    Tag: blume-20020125-ffi
260    Description:
261    
262    A large number of tweaks and improvements to ml-nlffi-lib and
263    ml-nlffigen:
264    
265       - ML represenation types have been streamlined
266       - getter and setter functions work with concrete values, not abstract
267         ones where possible
268       - ml-nlffigen command line more flexible (see README file there)
269       - some bugs have been fixed (hopefully)
270    
271    ----------------------------------------------------------------------
272    Name: Lal George
273    Date: 2002/01/24
274    Tag: george-20020124-risc-ra-interface
275    Description:
276    
277       There is a dramatic simplification in the interface to the
278       register allocator for RISC architectures as a result of making
279       parallel copy instructions explicit.
280    
281    ----------------------------------------------------------------------
282    Name: Matthias Blume
283    Date: 2002/01/22
284    Tag: blume-20020122-x86-ccalls
285    Description:
286    
287    Bug fix for c-calls on x86 (having to do with how char- and
288    short-arguments are being handled).
289    
290    ----------------------------------------------------------------------
291    Name: Matthias Blume
292    Date: 2002/01/21
293    Tag: blume-20020121-ff
294    Description:
295    
296    Another day of fiddling with the FFI...
297    
298    1. Bug fix/workaround:  CKIT does not complain about negative array
299       dimensions, so ml-nlffigen has to guard itself against this possibility.
300       (Otherwise a negative dimension would send it into an infinite loop.)
301    
302    2. Some of the abstract types (light objects, light pointers, most "base"
303       types) in structure C are now eqtypes.
304    
305    3. Added constructors and test functions for NULL function pointers.
306    
307    ----------------------------------------------------------------------
308    Name: Matthias Blume
309    Date: 2002/01/18
310    Tag: blume-20020118-ready-for-new-release
311    Description:
312    
313    Made config/srcarchiveurl point to a new place.  (Will provide boot
314    files shortly.)
315    
316    Maybe we christen this to be 110.38?
317    
318    ----------------------------------------------------------------------
319    Name: Matthias Blume
320    Date: 2002/01/18
321    Tag: blume-20020118-more-ffifiddle
322    Description:
323    
324    Today's FFI fiddling:
325    
326      - Provided a structure CGetSet with "convenient" versions of C.Get.* and
327        C.Set.* that use concrete (MLRep.*) arguments and results instead
328        of abstract ones.
329    
330      - Provided word-style bit operations etc. for "int" representation
331        types in MLRep.S<Foo>Bitops where <Foo> ranges over Char, Int, Short,
332        and Long.
333    
334    ----------------------------------------------------------------------
335    Name: Matthias Blume
336    Date: 2002/01/18
337    Tag: blume-20020118-use-x86-fp
338    Description:
339    
340    Now that x86-fast-fp seems to be working, I turned it back on again
341    by default.  (Seems to work fine now, even with the FFI.)
342    
343    Other than that, I added some documentation about the FFI to
344    src/ml-nlffigen/README and updated the FFI test examples in
345    src/ml-nlffi-lib/Tests/*.
346    
347    ----------------------------------------------------------------------
348    Name: Allen Leung
349    Date: 2002/01/17
350    Tag: leunga-20020117-x86-fast-fp-call
351    Description:
352    
353       1. Fixed a problem with handling return fp values when x86's fast fp
354          mode is turned on.
355    
356       2. Minor pretty printing fix for cellset.  Print %st(0) as %st(0) instead
357          of %f32.
358    
359       3. Added a constructor INT32lit to the ast of MLRISC tools.
360    
361    ----------------------------------------------------------------------
362    Name: Matthias Blume
363    Date: 2002/01/16
364    Tag: blume-20020116-ffifiddle
365    Description:
366    
367    More fiddling with the FFI interface:
368    
369     - Make constness 'c instead of rw wherever possible.  This eliminates
370       the need for certain explicit coercions.  (However, due to ML's
371       value polymorphism, there will still be many cases where explicit
372       coercions are necessary.  Phantom types are not the whole answer
373       to modeling a subtyping relationship in ML.)
374    
375     - ro/rw coersions for pointers added.  (Avoids the detour through */&.)
376    
377     - "printf" test example added to src/ml-nlffi-lib/Tests.  (Demonstrates
378       clumsy workaround for varargs problem.)
379    
380    ----------------------------------------------------------------------
381    Name: Lal George
382    Date: 2002/01/15
383    Tag: <none>
384    Description:
385    
386    1. Since COPY instructions are no longer native to the architecture,
387       a generic functor can be used to implement the expandCopies function.
388    
389    2. Allowed EXPORT and IMPORT pseudo-op declarations to appear inside a
390       TEXT segment.
391    
392    ----------------------------------------------------------------------
393    Name: Matthias Blume
394    Date: 2002/01/15
395    Tag: blume-20020115-ffiupdates
396    Description:
397    
398    1. Fix for bug resulting in single-precision float values being returned
399       incorrectly from FFI calls.
400    
401    2. Small modifications to C FFI API:
402    
403        - memory-allocation routines return straight objects (no options)
404          and raise an exception in out-of-memory situations
405        - unsafe extensions to cast between function pointers and pointers
406          from/to ints
407        - added structure C_Debug as an alternative to structure C where
408          pointer-dereferencing (|*| and |*!) always check for null-pointers
409        - added open_lib' to DynLinkage;  open_lib' works like open_lib
410          but also takes a (possibly empty) list of existing library handles
411          that the current library depends on
412    
413    ----------------------------------------------------------------------
414    Name: Matthias Blume
415    Date: 2002/01/10
416    Tag: blume-20020110-newffigen
417    Description:
418    
419    1. Updates to portable graph code.
420    
421    2. Major update to ml-nlffigen and ml-nlffi-lib.  Things are much
422       more scalable now so that even huge interfaces such as the one
423       for GTK compile in finite time and space. :-)
424       See src/ml-nlffigen/README for details on what's new.
425    
426    ----------------------------------------------------------------------
427    Name: Lal George
428    Date: 2001/01/09 14:31:35 EST 2002
429    Tag: george-20011206-rm-native-copy
430    Description:
431    
432            Removed the native COPY and FCOPY instructions
433            from all the architectures and replaced it with the
434            explicit COPY instruction from the previous commit.
435    
436            It is now possible to simplify many of the optimizations
437            modules that manipulate copies. This has not been
438            done in this change.
439    
440    ----------------------------------------------------------------------
441    Name: Lal George
442    Date: 2001/12/06 16:50:13 EST 2001
443    Tag: george-20011206-mlrisc-instruction
444    Description:
445    
446    Changed the representation of instructions from being fully abstract
447    to being partially concrete. That is to say:
448    
449      from
450            type instruction
451    
452      to
453            type instr                              (* machine instruction *)
454    
455            datatype instruction =
456                LIVE of {regs: C.cellset, spilled: C.cellset}
457              | KILL of {regs: C.cellset, spilled: C.cellset}
458              | COPYXXX of {k: CB.cellkind, dst: CB.cell list, src: CB.cell list}
459              | ANNOTATION of {i: instruction, a: Annotations.annotation}
460              | INSTR of instr
461    
462    This makes the handling of certain special instructions that appear on
463    all architectures easier and uniform.
464    
465    LIVE and KILL say that a list of registers are live or killed at the
466    program point where they appear. No spill code is generated when an
467    element of the 'regs' field is spilled, but the register is moved to
468    the 'spilled' (which is present, more for debugging than anything else).
469    
470    LIVE replaces the (now deprecated) DEFFREG instruction on the alpha.
471    We used to generate:
472    
473            DEFFREG f1
474            f1 := f2 + f3
475            trapb
476    
477    but now generate:
478    
479            f1 := f2 + f3
480            trapb
481            LIVE {regs=[f1,f2,f3], spilled=[]}
482    
483    Furthermore, the DEFFREG (hack) required that all floating point instruction
484    use all registers mentioned in the instruction. Therefore f1 := f2 + f3,
485    defines f1 and uses [f1,f2,f3]! This hack is no longer required resulting
486    in a cleaner alpha implementation. (Hopefully, intel will not get rid of
487    this architecture).
488    
489    COPYXXX is intended to replace the parallel COPY and FCOPY  available on
490    all the architectures. This will result in further simplification of the
491    register allocator that must be aware of them for coalescing purposes, and
492    will also simplify certain aspects of the machine description that provides
493    callbacks related to parallel copies.
494    
495    ANNOTATION should be obvious, and now INSTR represents the honest to God
496    machine instruction set!
497    
498    The <arch>/instructions/<arch>Instr.sml files define certain utility
499    functions for making porting easier -- essentially converting upper case
500    to lower case. All machine instructions (of type instr) are in upper case,
501    and the lower case form generates an MLRISC instruction. For example on
502    the alpha we have:
503    
504      datatype instr =
505         LDA of {r:cell, b:cell, d:operand}
506       | ...
507    
508      val lda : {r:cell, b:cell, d:operand} -> instruction
509        ...
510    
511    where lda is just (INSTR o LDA), etc.
512    
513    ----------------------------------------------------------------------
514    Name: Matthias Blume
515    Date: 2001/11/22 21:40:00 EST
516    Tag: Release_110_37
517    Description:
518    
519    Release 110.37.  This time for real.
520    
521    ----------------------------------------------------------------------
522    Name: Matthias Blume
523    Date: 2001/11/21 16:35:00 EST
524    Tag: blume-20011121-foot-in-mouth
525    Description:
526    
527    Removed the "Release_110_37" tag because of a serious bug.
528    This will be re-tagged once the bug is fixed.
529    
530    ----------------------------------------------------------------------
531    Name: Matthias Blume
532    Date: 2001/11/21 16:14:00 EST
533    Tag: blume-20011121-forgottenfile
534    Description:
535    
536    Forgot to add a file.  (Just a .tex-file -- part of
537    the CM manual source.)
538    
539    ----------------------------------------------------------------------
540    Name: Matthias Blume
541    Date: 2001/11/21 16:10:00 EST
542    Tag: blume-20011121-invalid_110_37
543    Description:
544    
545    Note: I removed the original tag "Release_110_37" from this commit
546          because we found a serious bug in all non-x86 backends.
547          - Matthias
548    
549    1. Modifications to the SML/NJ code generator and to the runtime system
550       so that code object name strings are directly inserted into code
551       objects at code generation time.  The only business the runtime system
552       has with this is now to read the name strings on occasions.
553       (The encoding of the name string has also changed somewhat.)
554    
555    2. CM now implements a simple "set calculus" for specifying export lists.
556       In particular, it is now possible to refer to the export lists of
557       other libraries/groups/sources and form unions as well as differences.
558       See the latest CM manual for details.
559    
560    3. An separate notion of "proxy" libraries has again be eliminated from
561       CM's model.  (Proxy libraries are now simply a special case of using
562       the export list calculus.)
563    
564    4. Some of the existing libraries now take advantage of the new set
565       calculus.
566       (Notice that not all libraries have been converted because some
567       of the existing .cm-files are supposed to be backward compatible
568       with 110.0.x.)
569    
570    5. Some cleanup in stand-alone programs.  (Don't use "exnMessage" -- use
571       "General.exnMessage"!  The former relies on a certain hook to be
572       initialized, and that often does not happen in the stand-alone case.)
573    
574    ----------------------------------------------------------------------
575    Name: Lal George
576    Date: 2001/11/21  13:56:18 EST
577    Tag: george-2001121-pseudo-ops
578    Description:
579    
580      Implemented a complete redesign of MLRISC pseudo-ops. Now there
581      ought to never be any question of incompatabilities with
582      pseudo-op syntax expected by host assemblers.
583    
584      For now, only modules supporting GAS syntax are implemented
585      but more should follow, such as MASM, and vendor assembler
586      syntax, e.g. IBM as, Sun as, etc.
587    
588    ----------------------------------------------------------------------
589    Name: Matthias Blume
590    Date: 2001/11/14 11:52:00 EST
591    Tag: blume-20011114-srcname
592    Description:
593    
594    1. Routed the name of the current source file to mlriscgen where it
595       should be directly emitted into the code object.  (This last part
596       is yet to be done.)
597    
598    2. Some cleanup of the pgraph code to make it match the proposal that
599       I put out the other day.  (The proposal notwithstanding, things are
600       still in flux here.)
601    
602    ----------------------------------------------------------------------
603    Name: Lal George
604    Date: 2001/11/14 09:44:04 EST
605    Tag:
606    Description:
607    
608      Fix for a backpatching bug reported by Allen.
609    
610      Because the boundary between short and long span-dependent
611      instructions is +/- 128, there are an astounding number of
612      span-dependent instructions whose size is over estimated.
613    
614      Allen came up with the idea of letting the size of span
615      dependent instructions be non-monotonic, for a maxIter
616      number of times, after which the size must be monotonically
617      increasing.
618    
619      This table shows the number of span-dependent instructions
620      whose size was over-estimated as a function of maxIter, for the
621      file Parse/parse/ml.grm.sml:
622    
623         maxIter            # of instructions:
624            10                      687
625            20                      438
626            30                      198
627            40                        0
628    
629      In compiling the compiler, there is no significant difference in
630      compilation speed between maxIter=10 and maxIter=40. Actually,
631      my measurements showed that maxIter=40 was a tad faster than
632      maxIter=10! Also 96% of the  files in the compiler reach a fix
633      point within 13 iterations, so fixing maxIter at 40, while high,
634      is okay.
635    
636    ----------------------------------------------------------------------
637    Name: Matthias Blume
638    Date: 2001/10/31 15:25:00 EST
639    Tag: blume-20011031-pgraph
640    Description:
641    
642    CKIT:
643    * Changed the "Function" constructor of type Ast.ctype to carry optional
644      argument identifiers.
645    * Changed the return type of TypeUtil.getFunction accordingly.
646    * Type equality ignores the argument names.
647    * TypeUtil.composite tries to preserve argument names but gives up quickly
648      if there is a mismatch.
649    
650    installation script:
651    * attempts to use "curl" if available (unless "wget" is available as well)
652    
653    CM:
654    * has an experimental implementation of "portable graphs" which I will
655      soon propose as an implementation-independent library format
656    * there are also new libraries $/pgraph.cm and $/pgraph-util.cm
657    
658    NLFFI-LIB:
659    * some cleanup (all cosmetic)
660    
661    NLFFIGEN:
662    * temporarily disabled the mechanism that suppresses ML output for
663      C definitions whose identifiers start with an underscore character
664    * generate val bindings for enum constants
665    * user can request that only one style (light or heavy) is being used;
666      default is to use both (command-line arguments: -heavy and -light)
667    * fixed bug in handling of function types involving incomplete pointers
668    * generate ML entry points that take record arguments (i.e., using
669      named arguments) for C functions that have a prototype with named
670      arguments
671      (see changes to CKIT)
672    
673    ----------------------------------------------------------------------
674    Name: Allen Leung
675    Date: 2001/10/27 20:34:00 EDT
676    Tag: leunga-20011027-x86-fast-fp-call
677    Description:
678    
679       Fixed the bug described in blume-20010920-slowfp.
680    
681       The fix involves
682          1. generating FCOPYs in FSTP in ia32-svid
683          2. marking a CALL with the appropriate annotation
684    
685    ----------------------------------------------------------------------
686    Name: Matthias Blume
687    Date: 2001/10/16 11:32:00 EDT
688    Tag: blume-20011016-netbsd
689    Description:
690    
691    Underscore patch from Chris Richards (fixing problem with compiling
692    runtime system under recent NetBSD).
693    
694    ----------------------------------------------------------------------
695    Name: Allen Leung
696    Date: 2001/10/12 17:18:32 EDT 2001
697    Tag: leung-20011012-x86-printflowgraph
698    Description:
699    
700    X86RA now uses a valid (instead of dummy) PrintFlowgraph module.
701    
702    ----------------------------------------------------------------------
703    Name: Lal George
704    Date: 2001/10/11 23:51:34 EDT
705    Tag: george-20011011-too-many-instrs
706    Description:
707    
708    The representation of a program point never expected to see more
709    than 65536 instructions in a basic block!
710    
711    ----------------------------------------------------------------------
712    Name: Lal George
713    Date: 2001/10/09 09:41:37 EDT
714    Tag: george-20011008-mlrisc-labels
715    Description:
716    
717    Changed the machine description files to support printing of
718    local and global labels in assembly code, based on host assembler
719    conventions.
720    
721    ----------------------------------------------------------------------
722    Name: Matthias Blume
723    Date: 2001/09/25 15:25:00 EDT
724    Tag: blume-20010925-exninfo
725    Description:
726    
727    I provided a non-hook implementation of exnName (at the toplevel) and
728    made the "dummy" implementation of exnMessage (at the toplevel) more
729    useful: if nothing gets "hooked in", then at least you are going to
730    see the exception name and a message indicating why you don't see more.
731    
732    [For the time being, programs that need exnMessage and want to use
733    ml-build should either use General.exnMessage (strongly recommended) or
734    refer to structure General at some other point so that CM sees a
735    static dependency.]
736    
737    [Similar remarks go for "print" and "use":  If you want to use their
738    functionality in stand-alone programs generated by ml-build, then use
739    TextIO.output and Backend.Interact.useFile (from $smlnj/compiler.cm).]
740    
741    ----------------------------------------------------------------------
742    Name: Matthias Blume
743    Date: 2001/09/20 17:28:00 EDT
744    Tag: blume-20010920-slowfp
745    Description:
746    
747    Allen says that x86-fast-fp is not safe yet, so I turned it off again...
748    
749    ----------------------------------------------------------------------
750    Name: Matthias Blume
751    Date: 2001/09/20 17:20:00 EDT
752    Tag: blume-20010920-canonicalpaths
753    Description:
754    
755    0. Updated the BOOT file (something that I forgot to do earlier).
756    
757    1. Small internal change to CM so that it avoids "/../" in filenames
758       as much as possible (but only where it is safe).
759    
760    2. Changed config/_run-sml (resulting in a changed bin/.run-sml) so
761       that arguments that contain delimiters are passed through correctly.
762       This change also means that all "special" arguments of the form
763       @SMLxxx... must come first.
764    
765    3. Changed install script to put relative anchor names for tool commands
766       into pathconfig.
767    
768    ----------------------------------------------------------------------
769    Name: Matthias Blume
770    Date: 2001/09/18 15:35:00 EDT
771    Tag: blume-20010918-readme11036
772    Description:
773    
774    Added README files.
775    
776    ----------------------------------------------------------------------
777    Name: Matthias Blume
778    Date: 2001/09/18 11:45:00 EDT
779    Tag: Release_110_36 (retag)
780    Description:
781    
782    Fixed mistake in config/preloads. Retagged as 110.36.
783    
784    ----------------------------------------------------------------------
785    Name: Matthias Blume
786    Date: 2001/09/18 09:40:00 EDT
787    Tag: Release_110_36_orig (tag changed)
788    Description:
789    
790    New version (110.36).  New bootfiles.
791    
792    ----------------------------------------------------------------------
793    Name: Matthias Blume
794    Date: 2001/09/14 16:15:00 EDT
795    Tag: blume-20010914-x86fastfp
796    Description:
797    
798    John committed some changes that Allen made, in particular a (hopefully)
799    correctly working version of the x86-fp module.
800    
801    I changed the default setting of the Control.MLRISC.getFlag "x86-fast-fp"
802    flag to "true".  Everything seems to compile to a fixpoint ok, and
803    "mandelbrot" speeds up by about 15%.
804    
805    ----------------------------------------------------------------------
806    Name: Matthias Blume
807    Date: 2001/09/13 11:20:00 EDT
808    Tag: blume-20010913-minimal
809    Description:
810    
811    1. Stefan Monnier's patch to fix a miscompilation problem that
812       was brought to light by John Reppy's work on Moby.
813    
814    2. Implemented a minimal "structure Compiler" that contains just
815       "version" and "architecture".  The minimal version will be
816       available when the full version is not.  This is for backward-
817       compatibility with code that wants to test Compiler.version.
818    
819    ----------------------------------------------------------------------
820    Name: Matthias Blume
821    Date: 2001/08/28 14:03:00 EDT
822    Tag: blume-20010828-ml-lex
823    Description:
824    
825    Fix for bug 1581, received from Neophytos Michael.
826    
827    ----------------------------------------------------------------------
828    Name: Matthias Blume
829    Date: 2001/08/27 11:20:00 EDT
830    Tag: blume-20010827-readme11035
831    Description:
832    
833    Fleshed out the README file for 110.35.
834    
835    ----------------------------------------------------------------------
836    Name: Matthias Blume
837    Date: 2001/08/24 17:10:00 EDT
838    Tag: Release_110_35
839    Description:
840    
841    New version number (110.35).  New bootfiles.
842    
843    ----------------------------------------------------------------------
844    Name: Lal George
845    Date: 2001/08/24 13:47:18 EDT 2001
846    Tag: george-20010824-MLRISC-graphs
847    Description:
848    
849     removed clusters from MLRISC completely and replaced with graphs.
850    
851    ----------------------------------------------------------------------
852    Name: Matthias Blume
853    Date: 2001/08/23 17:50:00 EDT
854    Tag: blume-20010823-toplevel
855    Description:
856    
857    - some reorganization of the code that implements various kinds of
858      environments in the compiler (static, dynamic, symbolic, combined)
859    - re-implemented the EnvRef module so that evalStream works properly
860      (if the stream contains references to "use", "CM.make", etc.)
861    - cleaned up evalloop.sml and interact.sml (but they need more cleaning)
862    
863    ----------------------------------------------------------------------
864    Name: Matthias Blume
865    Date: 2001/08/20 15:50 EDT
866    Tag: blume20010820-slipup
867    Description:
868    
869    I forgot to commit a few files.  Here they are...
870    
871    ----------------------------------------------------------------------
872    Name: Matthias Blume
873    Date: 2001/08/20 15:35:00 EDT
874    Tag: blume-20010820-debugprof
875    Description:
876    
877    !!!! NEW BOOTFILES !!!!
878    
879    This is another round of reorganizing the compiler sources.  This
880    time the main goal was to factor out all the "instrumentation"
881    passes (for profiling and backtracing) into their own library.
882    The difficulty was to do it in such a way that it does not depend
883    on elaborate.cm but only on elabdata.cm.
884    
885    Therefore there have been further changes to both elaborate.cm and
886    elabdata.cm -- more "generic" things have been moved from the former
887    to the latter.  As a result, I was forced to split the assignment
888    of numbers indicating "primtyc"s into two portions: SML-generic and
889    SML/NJ-specific.  Since it would have been awkward to maintain,
890    I bit the bullet and actually _changed_ the mapping between these
891    numbers and primtycs.  The bottom line of this is that you need
892    a new set of bin- and bootfiles.
893    
894    I have built new bootfiles for all architectures, so doing a fresh
895    checkout and config/install.sh should be all you need.
896    
897    The newly created library's name is
898    
899        $smlnj/viscomp/debugprof.cm
900    
901    and its sources live under
902    
903        src/compiler/DebugProf
904    
905    ----------------------------------------------------------------------
906    Name: Matthias Blume
907  Date: 2001/08/15 17:15:00 EDT  Date: 2001/08/15 17:15:00 EDT
908  Tag: blume-20010815-compreorg  Tag: blume-20010815-compreorg
909  Description:  Description:
# Line 2853  Line 3743 
3743       elaborator). There were a lot of changes during my "linkpath" trials       elaborator). There were a lot of changes during my "linkpath" trials
3744       that could have been reverted to their original state but weren't.       that could have been reverted to their original state but weren't.
3745       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
3746       than what was strictly necessary...  (I _did_ resist the tempation       than what was strictly necessary...  (I _did_ resist the temptation
3747       of doing any "global reformatting" to avoid an untimely death at       of doing any "global reformatting" to avoid an untimely death at
3748       Dave's hands. :)       Dave's hands. :)
3749    

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