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Diff of /sml/trunk/HISTORY

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revision 1016, Tue Jan 15 23:10:06 2002 UTC revision 1063, Wed Feb 13 21:41:53 2002 UTC
# Line 11  Line 11 
11  Date: yyyy/mm/dd  Date: yyyy/mm/dd
12  Tag: <post-commit CVS tag>  Tag: <post-commit CVS tag>
13  Description:  Description:
14    
15    ----------------------------------------------------------------------
16    Name: Matthias Blume
17    Date: 2002/02/13 16:41:00 EST
18    Tag: blume-20020213-cmlpq
19    Description:
20    
21    Added new priority queue export symbols (which have just been added to
22    smlnj-lib.cm) to CML's version of smlnj-lib.cm.  (Otherwise CML would
23    not compile and the installer would choke.)
24    
25    ----------------------------------------------------------------------
26    Name: Matthias Blume
27    Date: 2002/02/13 16:15:00 EST
28    Tag: blume-20020213-various
29    Description:
30    
31    1. More tweaks to ml-nlffigen:
32    
33       - better internal datastructures (resulting in slight speedup)
34       - "-match" option requires exact match
35       - "localized" gensym counters (untagged structs/unions nested within
36         other structs/unions or within typedefs get a fresh counter; their
37         tag will be prefixed by a concatenation of their parents' tags)
38       - bug fixes (related to calculation of transitive closure of types
39         to be included in the output)
40    
41    2. Minor Basis updates:
42    
43       - added implementations for List.collate and Option.app
44    
45    ----------------------------------------------------------------------
46    Name: Matthias Blume
47    Date: 2002/02/11 15:55:00 EST
48    Tag: blume-20020211-gensym
49    Description:
50    
51    Added a "-gensym" option to command line of ml-nlffigen.  This can be
52    used to specify a "stem" -- a string that is inserted in all "gensym'd"
53    names (ML structure names that correspond to unnamed C structs, unions,
54    and enums), so that separate runs of ml-nlffigen do not clash.
55    
56    ----------------------------------------------------------------------
57    Name: Matthias Blume
58    Date: 2002/02/11 12:05:00 EST
59    Tag: blume-20020211-gensml
60    Description:
61    
62    A quick fix for a problem with GenSML (in the pgraph-util library):
63    Make generation of toplevel "local" optional.  (Strictly speaking,
64    signature definitions within "local" are not legal SML.)
65    
66    Other than that: updates to INSTALL and cm/TODO.
67    
68    ----------------------------------------------------------------------
69    Name: Matthias Blume
70    Date: 2002/02/08 15:00:00 EST
71    Tag: blume-20020208-uniquepid
72    Description:
73    
74    0. Version number has been bumped to 110.38.1.  NEW BOOTFILES!!!
75    
76    1. The installer (config/install.sh) has gotten smarter:
77    
78         - Configuration options are a bit easier to specify now
79           (in config/targets).
80         - Bug in recognizing .tar.bz2 files fixed.
81         - Installer automatically resolves dependencies between
82           configuration options (e.g., if you ask for eXene, you will
83           also get cml -- regardless whether you asked for it or not).
84         - Installer can run in "quieter mode" by setting the environment
85           variable INSTALL_QUIETLY to "true".  "Quieter" does not mean
86           "completely silent", though.
87         - Build HashCons library as part of smlnj-lib.
88    
89    2. A new scheme for assigning persistent identifiers to compilation
90       units (and, by extension, to types etc.) has been put into place.
91       This fixes a long-standing bug where types and even dynamic values
92       can get internally confused, thereby compromising type safety
93       (abstraction) and dynamic correctness.  See
94    
95         http://cm.bell-labs.com/cm/cs/who/blume/pid-confusion.tgz
96    
97       for an example of how things could go wrong until now.
98    
99       The downside of the new scheme is that pids are not quite as
100       persistent as they used to be: CM will generate a fresh pid
101       for every compilation unit that it thinks it sees for the first
102       time.  That means that if you compile starting from a clean, fresh
103       source tree at two different times, you end up with different
104       binaries.
105    
106       Cutoff recompilation, however, has not been compromised because
107       CM keeps pid information in special caches between runs.
108    
109    ----------------------------------------------------------------------
110    Name: Lal George
111    Date: 2002/02/07 15:34:13 EST 2002
112    Tag: <none>
113    Description:
114    
115    Compilers that generate assembly code may produce  global labels
116    whose value is resolved at link time. The various peephole optimization
117    modules did not take this in account.
118    
119    TODO. The Labels.addrOf function should really return an option
120    type so that clients are forced to deal with this issue, rather
121    than an exception being raised.
122    
123    ----------------------------------------------------------------------
124    Name: Lal George
125    Date: 2002/02/06 13:55:02 EST
126    Tag: george-20020206-ra-breakup
127    Description:
128    
129    1. A bug fix from Allen.
130    
131        A typo causes extra fstp %st(0)'s to be generated at compensation
132        edges, which might cause stack underflow traps at runtime.  This
133        occurs in fft where there are extraneous fstps right before the 'into'
134        trap instruction (in this case they are harmless since none of the
135        integers overflow.)
136    
137    2. Pulled out various utility modules that were embedded in the modules
138       of the register allocator. I need these modules for other purposes, but
139       they are not complete enough to put into a library (just yet).
140    ----------------------------------------------------------------------
141    Name: Matthias Blume
142    Date: 2002/01/31 16:05:00 EST
143    Tag: blume-20020131-sparc-ccalls
144    Description:
145    
146    1. C-calls on Sparc needlessly allocated a huge chunk (96 bytes)
147       of extra stack space by mistake.  Fixed.
148    
149    2. Bug in logic of handling of command-line options in ml-nlffigen fixed.
150    
151    ----------------------------------------------------------------------
152    Name: Allen Leung
153    Date: 2002/01/30
154    Tag: leunga-20020130-nowhere-bug-fix
155    Description:
156    
157       MLRISC bug fixes:
158       1. Fixed a bindings computation bug in the 'nowhere' program generator tool.
159       2. MachineInt.fromString was negating its value.
160    
161    ----------------------------------------------------------------------
162    Name: Matthias Blume
163    Date: 2002/01/29
164    Tag: blume-20020129-INSTALL
165    Description:
166    
167    - Added somewhat detailed installation instructions (file INSTALL).
168    - Fixed curl-detection bug in config/install.sh.
169    - It is now possible to select the URL getter using the URLGETTER
170      environment variable:
171    
172          not set / "unknown"      --> automatic detection (script tries wget,
173                                       curl, and lynx)
174          "wget" / "curl" / "lynx" --> use the specified program (script "knows"
175                                       how to properly invoke them)
176          other                    --> use $URLGETTER directly, it must take
177                                       precisely two command-line arguments
178                                       (source URL and destination file name)
179    
180    ----------------------------------------------------------------------
181    Name: Matthias Blume
182    Date: 2002/01/28
183    Tag: blume-20020128-sparc-ccalls
184    Description:
185    
186    - Fixed problem with calculation of "used" registers in sparc-c-calls.
187    - Make use of the allocParam argument in sparc-c-calls.
188    
189    ----------------------------------------------------------------------
190    Name: Matthias Blume
191    Date: 2002/01/28
192    Tag: blume-20020128-allocParam
193    Description:
194    
195    John Reppy:  Changes c-calls API to accept client-callback for
196    allocating extra stack space.
197    me: Corresponding changes to mlriscGen (using a dummy argument that
198        does not change the current behavior).
199    
200    ----------------------------------------------------------------------
201    Name: Matthias Blume
202    Date: 2002/01/28 12:00:00
203    Tag: Release_110_38
204    Description:
205    
206    This time for real!!!
207    
208    ----------------------------------------------------------------------
209    Name: Matthias Blume
210    Date: 2002/01/28 10:56:00 EST
211    Tag: blume-20020128-retraction
212    Description:
213    
214    0. Retracted earlier 110.38.  (The Release_110_38 tag has been replaced
215       with blume-Release_110_38-retracted.)
216    
217    1. Fixed a problem with incorrect rounding modes in real64.sml.
218       (Thanks to Andrew Mccreight <andrew.mccreight@yale.edu>.)
219    
220    2. A bug in ml-nlffigen related to the handling of unnamed structs, unions,
221       and enums fixed.  The naming of corresponding ML identifiers should
222       now be consistent again.
223    
224    ----------------------------------------------------------------------
225    Name: Allen Leung
226    Date: 2002/01/27
227    Tag: leunga-20020127-nowhere
228    Description:
229    
230       Added a target called nowhere in the configuration scripts.
231       Enabling this will build the MLRISC 'nowhere' tool (for translating
232       programs with where-clauses into legal SML code) during installation.
233    
234    ----------------------------------------------------------------------
235    Name: Matthias Blume
236    Date: 2002/01/25 21:27:00 EST
237    Tag: blume-Release_110_38-retracted
238    Description:
239    
240    Call it a (working) release!  Version is 110.38. Bootfiles are ready.
241    
242    README will be added later.
243    
244    !!! NOTE:  Re-tagged as blume-Release_110_38-retracted. Original tag
245    (Release_110_38) removed.  Reason: Last-minute bug fixes.
246    
247    ----------------------------------------------------------------------
248    Name: Matthias Blume
249    Date: 2002/01/25
250    Tag: blume-20020125-ffi
251    Description:
252    
253    A large number of tweaks and improvements to ml-nlffi-lib and
254    ml-nlffigen:
255    
256       - ML represenation types have been streamlined
257       - getter and setter functions work with concrete values, not abstract
258         ones where possible
259       - ml-nlffigen command line more flexible (see README file there)
260       - some bugs have been fixed (hopefully)
261    
262    ----------------------------------------------------------------------
263    Name: Lal George
264    Date: 2002/01/24
265    Tag: george-20020124-risc-ra-interface
266    Description:
267    
268       There is a dramatic simplification in the interface to the
269       register allocator for RISC architectures as a result of making
270       parallel copy instructions explicit.
271    
272    ----------------------------------------------------------------------
273    Name: Matthias Blume
274    Date: 2002/01/22
275    Tag: blume-20020122-x86-ccalls
276    Description:
277    
278    Bug fix for c-calls on x86 (having to do with how char- and
279    short-arguments are being handled).
280    
281    ----------------------------------------------------------------------
282    Name: Matthias Blume
283    Date: 2002/01/21
284    Tag: blume-20020121-ff
285    Description:
286    
287    Another day of fiddling with the FFI...
288    
289    1. Bug fix/workaround:  CKIT does not complain about negative array
290       dimensions, so ml-nlffigen has to guard itself against this possibility.
291       (Otherwise a negative dimension would send it into an infinite loop.)
292    
293    2. Some of the abstract types (light objects, light pointers, most "base"
294       types) in structure C are now eqtypes.
295    
296    3. Added constructors and test functions for NULL function pointers.
297    
298    ----------------------------------------------------------------------
299    Name: Matthias Blume
300    Date: 2002/01/18
301    Tag: blume-20020118-ready-for-new-release
302    Description:
303    
304    Made config/srcarchiveurl point to a new place.  (Will provide boot
305    files shortly.)
306    
307    Maybe we christen this to be 110.38?
308    
309    ----------------------------------------------------------------------
310    Name: Matthias Blume
311    Date: 2002/01/18
312    Tag: blume-20020118-more-ffifiddle
313    Description:
314    
315    Today's FFI fiddling:
316    
317      - Provided a structure CGetSet with "convenient" versions of C.Get.* and
318        C.Set.* that use concrete (MLRep.*) arguments and results instead
319        of abstract ones.
320    
321      - Provided word-style bit operations etc. for "int" representation
322        types in MLRep.S<Foo>Bitops where <Foo> ranges over Char, Int, Short,
323        and Long.
324    
325    ----------------------------------------------------------------------
326    Name: Matthias Blume
327    Date: 2002/01/18
328    Tag: blume-20020118-use-x86-fp
329    Description:
330    
331    Now that x86-fast-fp seems to be working, I turned it back on again
332    by default.  (Seems to work fine now, even with the FFI.)
333    
334    Other than that, I added some documentation about the FFI to
335    src/ml-nlffigen/README and updated the FFI test examples in
336    src/ml-nlffi-lib/Tests/*.
337    
338    ----------------------------------------------------------------------
339    Name: Allen Leung
340    Date: 2002/01/17
341    Tag: leunga-20020117-x86-fast-fp-call
342    Description:
343    
344       1. Fixed a problem with handling return fp values when x86's fast fp
345          mode is turned on.
346    
347       2. Minor pretty printing fix for cellset.  Print %st(0) as %st(0) instead
348          of %f32.
349    
350       3. Added a constructor INT32lit to the ast of MLRISC tools.
351    
352    ----------------------------------------------------------------------
353    Name: Matthias Blume
354    Date: 2002/01/16
355    Tag: blume-20020116-ffifiddle
356    Description:
357    
358    More fiddling with the FFI interface:
359    
360     - Make constness 'c instead of rw wherever possible.  This eliminates
361       the need for certain explicit coercions.  (However, due to ML's
362       value polymorphism, there will still be many cases where explicit
363       coercions are necessary.  Phantom types are not the whole answer
364       to modeling a subtyping relationship in ML.)
365    
366     - ro/rw coersions for pointers added.  (Avoids the detour through */&.)
367    
368     - "printf" test example added to src/ml-nlffi-lib/Tests.  (Demonstrates
369       clumsy workaround for varargs problem.)
370    
371  ----------------------------------------------------------------------  ----------------------------------------------------------------------
372  Name: Lal George  Name: Lal George
373  Date: 2002/01/15  Date: 2002/01/15
# Line 401  Line 758 
758    
759  ----------------------------------------------------------------------  ----------------------------------------------------------------------
760  Name: Matthias Blume  Name: Matthias Blume
 >>>>>>> 1.169  
761  Date: 2001/09/18 15:35:00 EDT  Date: 2001/09/18 15:35:00 EDT
762  Tag: blume-20010918-readme11036  Tag: blume-20010918-readme11036
763  Description:  Description:

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