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revision 601, Thu Apr 6 04:38:14 2000 UTC revision 642, Thu May 11 07:30:29 2000 UTC
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12  Tag: <post-commit CVS tag>  Tag: <post-commit CVS tag>
13  Description:  Description:
14  ----------------------------------------------------------------------  ----------------------------------------------------------------------
15    Name: Matthias Blume
16    Date: 2000/05/11 16:30:00 JST
17    Tag: blume-20000511-sources
18    Description:
19    
20    The main change is that I added function CM.sources as a generalized
21    version of the earlier CM.makedepend.  This entails the following
22    additional changes:
23    
24      - CM.makedepend has been dropped.
25    
26      - CM manual has been updated.
27    
28      - TOOLS signature and API have been changed.
29    
30    ----------------------------------------------------------------------
31    Name: Allen Leung
32    Date: 2000/05/10 21:17 EDT
33    Tag: leunga-20000510-moby-c--ssa
34    Description:
35    
36      Various bug fixes and new features for C--, Moby and MLRISC optimizations.
37    None of these affect SML/NJ.
38    
39    1. Register Allocation
40    
41        a. A new ra spilling module (ra/ra-spill-with-renaming) is implemented.
42           This module tries to remove local (i.e. basic block level) redundancies
43           during spilling.
44    
45        b. A new framework for performing region based register allocation.
46           Not yet entirely functional.
47    
48    2. X86
49    
50       a. DefUse for POP was missing the stack pointer [found by Lal]
51       b. Reload for CALL was incorrect in X86Spill [found by John]
52       c. Various fixes in X86Spill so that it can be used correctly for
53          the new spilling module.
54    
55    3. SSA/IR
56    
57       a. New module ir/dj-dataflow.sml implements elimination based
58          data flow analysis.
59    
60    4. MLRiscGen
61    
62       a. Fix for gc type annotation
63    
64    5. MDGen
65    
66       Various fixes for machine description -> ml code translation.  For ssa
67       only.
68    
69    ----------------------------------------------------------------------
70    Name: Allen Leung
71    Date: 2000/05/08 22:17 EDT
72    Tag: leunga-20000508-labexp
73    Description:
74    
75      Fermin has found a few assembly problems with constant expressions
76      generated in LabelExp.  Mostly, the problems involve extra parentheses,
77      which choke on dumb assemblers.  This is his fix.
78    
79    ----------------------------------------------------------------------
80    Name: Dave MacQueen
81    Date: 2000/04/09 14:00 EDT
82    Tag: dbm-20000502-Version_110_28
83    Description:
84    
85    1. Updated src/compiler/TopLevel/main/version.sml to version 110.28
86    
87    2. Updated config/version to 110.28
88    
89    3. Updated config/srcarchiveurl
90    
91    3. New boot files!
92       ftp://ftp.research.bell-labs.com/dist/smlnj/working/110.28/
93    
94    ----------------------------------------------------------------------
95    Name: Matthias Blume
96    Date: 2000/05/01 19:05:00 JST
97    Tag: blume-20000501-noweb
98    Description:
99    
100    A new noweb tool has been added.  The existing system is entirely
101    unaffected by this, but some CM users have asked for renewed noweb
102    support.  Everything is documented in the CM manual.
103    
104    New (plugin) libraries:
105    
106       noweb-tool.cm
107       nw-ext.cm
108    
109    ----------------------------------------------------------------------
110    Name: Dave MacQueen
111    Date: 2000/04/30 12:40PM EDT
112    Tag: dbm-20000430-bug_fixes
113    Description:
114    
115    1. Fix for bug 1498
116       smlnj/src/system/Basis/Implementation/Unsafe/object.sig
117       smlnj/src/system/Basis/Implementation/Unsafe/object.sml
118         added toRealArray function
119       smlnj/src/compiler/MiscUtil/print/ppobj.sml
120         added check for tag Obj.RealArray to array printing case in ppObj
121    
122    2. Fix for bug 1510
123       smlnj/src/compiler/Semant/types/typesutil.sml
124         fixed definition of dummyargs (used by equalTycon) so that
125         dummy args are distinct types
126    
127    ----------------------------------------------------------------------
128    Name: Matthias Blume
129    Date: 2000/04/30 01:00:00 JST
130    Tag: blume-20000430-versions
131    Description:
132    
133    1. CM version numbering added.  This is an implementation of Lal's
134       proposal for adding version numbers and version checking to .cm
135       files.  Lal said that his proposal was just that -- a proposal.
136       For the time being I went ahead and implemented it so that people
137       can comment on it.  Everything is completely backward-compatible
138       (except for the stable library format, i.e., new bootfiles!).
139    
140       As usual, see the CM manual for details.
141    
142    2. An alternative syntax for anchored paths has been implemented.
143       Dave has recently voiced the same concerns that I had when I did
144       this, so there should be some support.  My take is that eventually
145       I will let support for the current syntax (where anchors are
146       "implicit") fade out in favor of the new, explicit syntax.
147       In order to be backward-compatible, both old and new syntax are
148       currently supported.
149    
150       Again, see the CM manual for details.
151    
152    3. Parallel make is trying to be slightly smarter:  When the master
153       process finds a "bottleneck", i.e., when there is only one
154       compilation unit that can be compiled and everybody else is
155       waiting on it, then it will simply compile it directly instead
156       of clumsily telling one of the slaves to do it.
157    
158    4. Support for "unsharing" added.  This is necessary in order to be
159       able to have two different versions of the same library running
160       at the same time (e.g., for trying out a new MLRISC while still
161       having the old MLRISC linked into the current compiler, etc.)
162       See the CM manual.
163    
164    5. Simple "makedepend" functionality added for generating Makefile
165       dependency information.  (This is rather crude at the moment.
166       Expect some changes here in the future.)
167    
168    6. ".fun" added as a recognized suffix for ML files. Also documented
169       explicitly in the manual that the fallback behavior (unknown suffix
170       -> ML file) is not an official feature!
171    
172    7. Small changes to the pickler for stable libraries.
173    
174    8. Several internal changes to CM (for cleanup/improvement).
175    
176    
177    !!!! NEW BINFILES !!!!
178    
179    ----------------------------------------------------------------------
180    Name: Matthias Blume
181    Date: 2000/04/28 17:30:00 JST
182    Tag: blume-20000428-pathconfig
183    Description:
184    
185    1. I changed config/install.sh to remove duplicate entries from the
186       lib/pathconfig file at the end.  Moreover, the final version of
187       lib/pathconfig is sorted alphabetically.  The same (sorting) is done
188       in src/system/installml.
189    
190    2. The config/install.sh script now consistently uses relative
191       pathnames in lib/pathconfig whenever the anchor is in the lib
192       directory.  (So far this was true for the libraries that come
193       pre-compiled and bundled as part of the bootfiles but not for
194       libraries that are compiled by the script itself.)
195    
196    ----------------------------------------------------------------------
197    Name: Matthias Blume
198    Date: 2000/04/26 13:10:00 JST
199    Tag: blume-20000426-fun_suffix
200    Description:
201    
202    Added ".fun" as a recognized file name suffix (for ML code).
203    
204    ----------------------------------------------------------------------
205    Name: Allen Leung
206    Date: 2000/04/25 17:00:00 EST
207    Tag: leunga-20000425-alpha-ra
208    Description:
209    
210    1. Alpha
211    
212        PSEUDOARITH was missing in AlphaRewrite.  This causes an endless loop
213    in C--.
214    
215    2. RA
216    
217       Added a flag "ra-dump-size" to print out the size of the flowgraph
218       and the interference graph.
219    
220    ----------------------------------------------------------------------
221    Name: Dave MacQueen
222    Date: 2000/04/25/
223    Tag: dbm-20000425-mlyacc_doc_examples
224    Description:
225      Updated mlyacc.tex sections 5 and 7 for SML '97 and CM.
226      Updated all three examples in src/ml-yacc/examples to run
227      under 110.* using CM.make.
228    
229    ----------------------------------------------------------------------
230    Name: Allen Leung
231    Date: 2000/04/20 23:04:00 EST
232    Tag: leunga-20000420-ssa-c---stuff
233    Description:
234    
235      This update synchronizes my repository with Yale's.  Most of these
236    changes, however, do not affect SML/NJ at all (the RA is an exception).
237    
238    1. Register Allocator
239    
240       a. An improvement in the interference graph construction:
241          Given a copy
242    
243                s <- t
244    
245          no interference edge between s and t is added for this definition of s.
246    
247       b. I've added two new spill heuristic modules that Fermin and I developed
248          (in the new library RA.cm). These are unused in SML/NJ but maybe
249          useful for others (Moby?)
250    
251    2. X86
252    
253       a. Various fixes in the backend provided by Fermin [C--] and Lal.
254    
255    3. Alpha
256    
257       a. Added the BSR instruction and code generation that goes with it [C--]
258       b. Other fixes too numerous to recount provided by Fermin [C--]
259    
260    4. Regmaps
261    
262       a. The regmaps are not initialized with the identity physical bindings
263          at creation time.  This is unneeded.
264    
265    5. MLRISC Optimizations
266    
267       a. The DJ-Graph module can now compute the iterated dominance frontiers
268          intersects with liveness incrementally in linear time! Woohoo!
269          This is now used in my new SSA construction algorithm.
270    
271       b. THe branch reorganization module is now smarter about linear chains of
272          basic blocks.
273    
274    
275    ----------------------------------------------------------------------
276    Name: Matthias Blume
277    Date: 2000/04/12 13:52:00 JST
278    Tag: blume_main_v110p27_1
279    Description:
280    
281    Changed install.sh script to handle archive files without version number
282    and to use "boot.<arch>-<os>" instead of "sml.boot.<arch>-<os>" for the
283    name of the boot file archive.
284    
285    ----------------------------------------------------------------------
286    Name: Dave MacQueen
287    Date: 2000/04/09 14:00 EDT
288    Tag: dbm-20000410-Version_110_27
289    Description:
290    
291    1. Updated src/compiler/TopLevel/main/version.sml to version 110.27
292    
293    2. Updated src/config/version to 110.27
294    
295    3. New boot files!
296    
297    ----------------------------------------------------------------------
298    Name: Allen Leung
299    Date: 2000/04/09 19:09:00 EST
300    Tag: leunga-20000409-misc
301    Description:
302    
303    1.  Yet another fix for x86 assembly for idivl, imull, mull and friends.
304    
305    2.  Miscellaneous improvements to MLRISC (unused in sml/nj)
306    
307    ----------------------------------------------------------------------
308    Name: Stefan
309    Date: 2000/04/07 10:00:00 EDT
310    Tag: monnier-20000406-branch-handling
311    Description:
312    
313    Improved handling of branches (mostly those generated from
314    polymorphic equality), removed switchoff and changed the
315    default optimization settings (more cpsopt and less flintopt).
316    
317    ----------------------------------------------------------------------
318    Name: Allen Leung
319    Date: 2000/04/06 01:30:00 EST
320    Tag: leunga-20000406-peephole-x86-SSA-2
321    Description:
322    
323       Forgot a few files.
324    
325    ----------------------------------------------------------------------
326  Name: Allen Leung  Name: Allen Leung
327  Date: 2000/04/06 00:36:00 EST  Date: 2000/04/06 00:36:00 EST
328  Tag: leunga-20000406-peephole-x86-SSA  Tag: leunga-20000406-peephole-x86-SSA

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