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revision 1028, Fri Jan 18 18:57:53 2002 UTC revision 1076, Tue Feb 19 15:47:18 2002 UTC
# Line 14  Line 14 
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16  Name: Matthias Blume  Name: Matthias Blume
17    Date: 2002/02/19 10:48:00 EST
18    Tag: blume-20020219-pqfix
19    Description:
20    
21    Applied Chris Okasaki's bug fix for priority queues.
22    
23    ----------------------------------------------------------------------
24    Name: Matthias Blume
25    Date: 2002/02/15 17:05:00
26    Tag: Release_110_39
27    Description:
28    
29    Last-minute retagging is becoming a tradition... :-(
30    
31    This is the working release 110.39.
32    
33    ----------------------------------------------------------------------
34    Name: Matthias Blume
35    Date: 2002/02/15 16:00:00 EST
36    Tag: Release_110_39-orig
37    Description:
38    
39    Working release 110.39.  New bootfiles.
40    
41    (Update: There was a small bug in the installer so it wouldn't work
42    with all shells.  So I retagged. -Matthias)
43    
44    ----------------------------------------------------------------------
45    Name: Matthias Blume
46    Date: 2002/02/15 14:17:00 EST
47    Tag: blume-20020215-showbindings
48    Description:
49    
50    Added EnvRef.listBoundSymbols and CM.State.showBindings.  Especially
51    the latter can be useful for exploring what bindings are available at
52    the interactive prompt.  (The first function returns only the list
53    of symbols that are really bound, the second prints those but also the
54    ones that CM's autoloading mechanism knows about.)
55    
56    ----------------------------------------------------------------------
57    Name: Matthias Blume
58    Date: 2002/02/15 12:08:00 EST
59    Tag: blume-20020215-iptrs
60    Description:
61    
62    Two improvements to ml-nlffigen:
63    
64      1. Write files only if they do not exist or if their current contents
65         do not coincide with what's being written.  (That is, avoid messing
66         with the time stamps unless absolutely necessary.)
67    
68      2. Implement a "repository" mechanism for generated files related
69         to "incomplete pointer types".   See the README file for details.
70    
71    ----------------------------------------------------------------------
72    Name: Matthias Blume
73    Date: 2002/02/14 11:50:00 EST
74    Tag: blume-20020214-quote
75    Description:
76    
77    Added a type 't t_' to tag.sml (in ml-nlffi-lib.cm).  This is required
78    because of the new and improved tag generation scheme.  (Thanks to Allen
79    Leung for pointing it out.)
80    
81    ----------------------------------------------------------------------
82    Name: Lal George
83    Date: 2002/02/14 09:55:27 EST 2002
84    Tag: george-20020214-isabelle-bug
85    Description:
86    
87    Fixed the MLRISC bug sent by Markus Wenzel regarding the compilation
88    of Isabelle on the x86.
89    
90    From Allen:
91    -----------
92     I've found the problem:
93    
94         in ra-core.sml, I use the counter "blocked" to keep track of the
95         true number of elements in the freeze queue.  When the counter goes
96         to zero, I skip examining the queue.  But I've messed up the
97         bookkeeping in combine():
98    
99             else ();
100             case !ucol of
101               PSEUDO => (if !cntv > 0 then
102                     (if !cntu > 0 then blocked := !blocked - 1 else ();
103                                        ^^^^^^^^^^^^^^^^^^^^^^^
104                      moveu := mergeMoveList(!movev, !moveu)
105                     )
106                  else ();
107    
108         combine() is called to coalesce two nodes u and v.
109         I think I was thinking that if the move counts of u and v are both
110         greater than zero then after they are coalesced then one node is
111         removed from the freeze queue.  Apparently I was thinking that
112         both u and v are of low degree, but that's clearly not necessarily true.
113    
114    
115    02/12/2002:
116        Here's the patch.  HOL now compiles.
117    
118        I don't know how this impact on performance (compile
119        time or runtime).  This bug caused the RA (especially on the x86)
120        to go thru the potential spill phase when there are still nodes on the
121        freeze queue.
122    
123    
124    
125    
126    ----------------------------------------------------------------------
127    Name: Matthias Blume
128    Date: 2002/02/13 22:40:00 EST
129    Tag: blume-20020213-fptr-rtti
130    Description:
131    
132    Fixed a bug in ml-nlffigen that was introduced with one of the previous
133    updates.
134    
135    ----------------------------------------------------------------------
136    Name: Matthias Blume
137    Date: 2002/02/13 16:41:00 EST
138    Tag: blume-20020213-cmlpq
139    Description:
140    
141    Added new priority queue export symbols (which have just been added to
142    smlnj-lib.cm) to CML's version of smlnj-lib.cm.  (Otherwise CML would
143    not compile and the installer would choke.)
144    
145    ----------------------------------------------------------------------
146    Name: Matthias Blume
147    Date: 2002/02/13 16:15:00 EST
148    Tag: blume-20020213-various
149    Description:
150    
151    1. More tweaks to ml-nlffigen:
152    
153       - better internal datastructures (resulting in slight speedup)
154       - "-match" option requires exact match
155       - "localized" gensym counters (untagged structs/unions nested within
156         other structs/unions or within typedefs get a fresh counter; their
157         tag will be prefixed by a concatenation of their parents' tags)
158       - bug fixes (related to calculation of transitive closure of types
159         to be included in the output)
160    
161    2. Minor Basis updates:
162    
163       - added implementations for List.collate and Option.app
164    
165    ----------------------------------------------------------------------
166    Name: Matthias Blume
167    Date: 2002/02/11 15:55:00 EST
168    Tag: blume-20020211-gensym
169    Description:
170    
171    Added a "-gensym" option to command line of ml-nlffigen.  This can be
172    used to specify a "stem" -- a string that is inserted in all "gensym'd"
173    names (ML structure names that correspond to unnamed C structs, unions,
174    and enums), so that separate runs of ml-nlffigen do not clash.
175    
176    ----------------------------------------------------------------------
177    Name: Matthias Blume
178    Date: 2002/02/11 12:05:00 EST
179    Tag: blume-20020211-gensml
180    Description:
181    
182    A quick fix for a problem with GenSML (in the pgraph-util library):
183    Make generation of toplevel "local" optional.  (Strictly speaking,
184    signature definitions within "local" are not legal SML.)
185    
186    Other than that: updates to INSTALL and cm/TODO.
187    
188    ----------------------------------------------------------------------
189    Name: Matthias Blume
190    Date: 2002/02/08 15:00:00 EST
191    Tag: blume-20020208-uniquepid
192    Description:
193    
194    0. Version number has been bumped to 110.38.1.  NEW BOOTFILES!!!
195    
196    1. The installer (config/install.sh) has gotten smarter:
197    
198         - Configuration options are a bit easier to specify now
199           (in config/targets).
200         - Bug in recognizing .tar.bz2 files fixed.
201         - Installer automatically resolves dependencies between
202           configuration options (e.g., if you ask for eXene, you will
203           also get cml -- regardless whether you asked for it or not).
204         - Installer can run in "quieter mode" by setting the environment
205           variable INSTALL_QUIETLY to "true".  "Quieter" does not mean
206           "completely silent", though.
207         - Build HashCons library as part of smlnj-lib.
208    
209    2. A new scheme for assigning persistent identifiers to compilation
210       units (and, by extension, to types etc.) has been put into place.
211       This fixes a long-standing bug where types and even dynamic values
212       can get internally confused, thereby compromising type safety
213       (abstraction) and dynamic correctness.  See
214    
215         http://cm.bell-labs.com/cm/cs/who/blume/pid-confusion.tgz
216    
217       for an example of how things could go wrong until now.
218    
219       The downside of the new scheme is that pids are not quite as
220       persistent as they used to be: CM will generate a fresh pid
221       for every compilation unit that it thinks it sees for the first
222       time.  That means that if you compile starting from a clean, fresh
223       source tree at two different times, you end up with different
224       binaries.
225    
226       Cutoff recompilation, however, has not been compromised because
227       CM keeps pid information in special caches between runs.
228    
229    ----------------------------------------------------------------------
230    Name: Lal George
231    Date: 2002/02/07 15:34:13 EST 2002
232    Tag: <none>
233    Description:
234    
235    Compilers that generate assembly code may produce  global labels
236    whose value is resolved at link time. The various peephole optimization
237    modules did not take this in account.
238    
239    TODO. The Labels.addrOf function should really return an option
240    type so that clients are forced to deal with this issue, rather
241    than an exception being raised.
242    
243    ----------------------------------------------------------------------
244    Name: Lal George
245    Date: 2002/02/06 13:55:02 EST
246    Tag: george-20020206-ra-breakup
247    Description:
248    
249    1. A bug fix from Allen.
250    
251        A typo causes extra fstp %st(0)'s to be generated at compensation
252        edges, which might cause stack underflow traps at runtime.  This
253        occurs in fft where there are extraneous fstps right before the 'into'
254        trap instruction (in this case they are harmless since none of the
255        integers overflow.)
256    
257    2. Pulled out various utility modules that were embedded in the modules
258       of the register allocator. I need these modules for other purposes, but
259       they are not complete enough to put into a library (just yet).
260    ----------------------------------------------------------------------
261    Name: Matthias Blume
262    Date: 2002/01/31 16:05:00 EST
263    Tag: blume-20020131-sparc-ccalls
264    Description:
265    
266    1. C-calls on Sparc needlessly allocated a huge chunk (96 bytes)
267       of extra stack space by mistake.  Fixed.
268    
269    2. Bug in logic of handling of command-line options in ml-nlffigen fixed.
270    
271    ----------------------------------------------------------------------
272    Name: Allen Leung
273    Date: 2002/01/30
274    Tag: leunga-20020130-nowhere-bug-fix
275    Description:
276    
277       MLRISC bug fixes:
278       1. Fixed a bindings computation bug in the 'nowhere' program generator tool.
279       2. MachineInt.fromString was negating its value.
280    
281    ----------------------------------------------------------------------
282    Name: Matthias Blume
283    Date: 2002/01/29
284    Tag: blume-20020129-INSTALL
285    Description:
286    
287    - Added somewhat detailed installation instructions (file INSTALL).
288    - Fixed curl-detection bug in config/install.sh.
289    - It is now possible to select the URL getter using the URLGETTER
290      environment variable:
291    
292          not set / "unknown"      --> automatic detection (script tries wget,
293                                       curl, and lynx)
294          "wget" / "curl" / "lynx" --> use the specified program (script "knows"
295                                       how to properly invoke them)
296          other                    --> use $URLGETTER directly, it must take
297                                       precisely two command-line arguments
298                                       (source URL and destination file name)
299    
300    ----------------------------------------------------------------------
301    Name: Matthias Blume
302    Date: 2002/01/28
303    Tag: blume-20020128-sparc-ccalls
304    Description:
305    
306    - Fixed problem with calculation of "used" registers in sparc-c-calls.
307    - Make use of the allocParam argument in sparc-c-calls.
308    
309    ----------------------------------------------------------------------
310    Name: Matthias Blume
311    Date: 2002/01/28
312    Tag: blume-20020128-allocParam
313    Description:
314    
315    John Reppy:  Changes c-calls API to accept client-callback for
316    allocating extra stack space.
317    me: Corresponding changes to mlriscGen (using a dummy argument that
318        does not change the current behavior).
319    
320    ----------------------------------------------------------------------
321    Name: Matthias Blume
322    Date: 2002/01/28 12:00:00
323    Tag: Release_110_38
324    Description:
325    
326    This time for real!!!
327    
328    ----------------------------------------------------------------------
329    Name: Matthias Blume
330    Date: 2002/01/28 10:56:00 EST
331    Tag: blume-20020128-retraction
332    Description:
333    
334    0. Retracted earlier 110.38.  (The Release_110_38 tag has been replaced
335       with blume-Release_110_38-retracted.)
336    
337    1. Fixed a problem with incorrect rounding modes in real64.sml.
338       (Thanks to Andrew Mccreight <andrew.mccreight@yale.edu>.)
339    
340    2. A bug in ml-nlffigen related to the handling of unnamed structs, unions,
341       and enums fixed.  The naming of corresponding ML identifiers should
342       now be consistent again.
343    
344    ----------------------------------------------------------------------
345    Name: Allen Leung
346    Date: 2002/01/27
347    Tag: leunga-20020127-nowhere
348    Description:
349    
350       Added a target called nowhere in the configuration scripts.
351       Enabling this will build the MLRISC 'nowhere' tool (for translating
352       programs with where-clauses into legal SML code) during installation.
353    
354    ----------------------------------------------------------------------
355    Name: Matthias Blume
356    Date: 2002/01/25 21:27:00 EST
357    Tag: blume-Release_110_38-retracted
358    Description:
359    
360    Call it a (working) release!  Version is 110.38. Bootfiles are ready.
361    
362    README will be added later.
363    
364    !!! NOTE:  Re-tagged as blume-Release_110_38-retracted. Original tag
365    (Release_110_38) removed.  Reason: Last-minute bug fixes.
366    
367    ----------------------------------------------------------------------
368    Name: Matthias Blume
369    Date: 2002/01/25
370    Tag: blume-20020125-ffi
371    Description:
372    
373    A large number of tweaks and improvements to ml-nlffi-lib and
374    ml-nlffigen:
375    
376       - ML represenation types have been streamlined
377       - getter and setter functions work with concrete values, not abstract
378         ones where possible
379       - ml-nlffigen command line more flexible (see README file there)
380       - some bugs have been fixed (hopefully)
381    
382    ----------------------------------------------------------------------
383    Name: Lal George
384    Date: 2002/01/24
385    Tag: george-20020124-risc-ra-interface
386    Description:
387    
388       There is a dramatic simplification in the interface to the
389       register allocator for RISC architectures as a result of making
390       parallel copy instructions explicit.
391    
392    ----------------------------------------------------------------------
393    Name: Matthias Blume
394    Date: 2002/01/22
395    Tag: blume-20020122-x86-ccalls
396    Description:
397    
398    Bug fix for c-calls on x86 (having to do with how char- and
399    short-arguments are being handled).
400    
401    ----------------------------------------------------------------------
402    Name: Matthias Blume
403    Date: 2002/01/21
404    Tag: blume-20020121-ff
405    Description:
406    
407    Another day of fiddling with the FFI...
408    
409    1. Bug fix/workaround:  CKIT does not complain about negative array
410       dimensions, so ml-nlffigen has to guard itself against this possibility.
411       (Otherwise a negative dimension would send it into an infinite loop.)
412    
413    2. Some of the abstract types (light objects, light pointers, most "base"
414       types) in structure C are now eqtypes.
415    
416    3. Added constructors and test functions for NULL function pointers.
417    
418    ----------------------------------------------------------------------
419    Name: Matthias Blume
420    Date: 2002/01/18
421    Tag: blume-20020118-ready-for-new-release
422    Description:
423    
424    Made config/srcarchiveurl point to a new place.  (Will provide boot
425    files shortly.)
426    
427    Maybe we christen this to be 110.38?
428    
429    ----------------------------------------------------------------------
430    Name: Matthias Blume
431    Date: 2002/01/18
432    Tag: blume-20020118-more-ffifiddle
433    Description:
434    
435    Today's FFI fiddling:
436    
437      - Provided a structure CGetSet with "convenient" versions of C.Get.* and
438        C.Set.* that use concrete (MLRep.*) arguments and results instead
439        of abstract ones.
440    
441      - Provided word-style bit operations etc. for "int" representation
442        types in MLRep.S<Foo>Bitops where <Foo> ranges over Char, Int, Short,
443        and Long.
444    
445    ----------------------------------------------------------------------
446    Name: Matthias Blume
447  Date: 2002/01/18  Date: 2002/01/18
448  Tag: blume-20020118-use-x86-fp  Tag: blume-20020118-use-x86-fp
449  Description:  Description:
# Line 448  Line 878 
878    
879  ----------------------------------------------------------------------  ----------------------------------------------------------------------
880  Name: Matthias Blume  Name: Matthias Blume
 >>>>>>> 1.169  
881  Date: 2001/09/18 15:35:00 EDT  Date: 2001/09/18 15:35:00 EDT
882  Tag: blume-20010918-readme11036  Tag: blume-20010918-readme11036
883  Description:  Description:

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