Home My Page Projects Code Snippets Project Openings SML/NJ
Summary Activity Forums Tracker Lists Tasks Docs Surveys News SCM Files

SCM Repository

[smlnj] Diff of /sml/trunk/HISTORY
ViewVC logotype

Diff of /sml/trunk/HISTORY

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 594, Tue Apr 4 23:41:47 2000 UTC revision 647, Tue May 16 02:53:02 2000 UTC
# Line 13  Line 13 
13  Description:  Description:
14  ----------------------------------------------------------------------  ----------------------------------------------------------------------
15  Name: Allen Leung  Name: Allen Leung
16    Date: 2000/05/15 22:53 EDT
17    Tag: leunga-20000515-alpha-x86-ra
18    Description:
19    
20      1. Alpha
21    
22          Slight cleanup.  Removed the instruction SGNXL
23    
24      2. X86
25    
26          Added the following instructions to the instruction set:
27    
28            ROLx, RORx,
29            BTx, BTSx, BTLx, BTRx,
30            XCHGx, and variants with the LOCK prefix
31    
32      3. Register Allocation
33    
34          The module ra-rewrite-with-renaming has been improved.
35    
36      These have no effect on SML/NJ.
37    
38    ----------------------------------------------------------------------
39    Name: Matthias Blume
40    Date: 2000/05/15 16:20:00 JST
41    Tag: blume-20000515-lightrebuild
42    Description:
43    
44    1. I added an alternative to "-rebuild" to "makeml".  The difference is
45       that prior to calling CMB.make' the CM-variable "LIGHT" will be
46       defined.  In effect, the command will not build any cross-compiler
47       backends and therefore finish more quickly.
48    
49       The "fixpt" script also takes a "-light" switch to be able to use
50       this new facility while compiling for a fixpoint.
51    
52    2. I replaced all mentions of anchored paths in group owner specifications
53       with simple relative paths (usually starting with "..").
54       The rationale is that a library's internal workings should not be
55       compromised by the lack of some anchor.  (An anchor is necessary
56       for someone who wants to refer to the library by an anchored path,
57       but it should not be necessary to build the same library in the first
58       place.)
59    
60    3. I changed the way CM's tool mechanism determines the shell command
61       string used for things like ml-yacc etc. so that it does not break
62       when CM.Control.implicit_anchors is turned off.
63    
64    ----------------------------------------------------------------------
65    Name: Matthias Blume
66    Date: 2000/05/12 18:20:00 JST
67    Tag: blume-20000512-ml-build
68    Description:
69    
70    Fixed a bug in config/_ml-build that prevented ml-yacc and ml-lex from
71    getting installed properly (by config/install.sh).
72    
73    ----------------------------------------------------------------------
74    Name: Matthias Blume
75    Date: 2000/05/12 17:30:00 JST
76    Tag: blume-20000512-anchors
77    Description:
78    
79    !!! NEW BOOT FILES !!!
80    
81    This change is in preparation of fading out support for "implicitly
82    anchored path names".  I went through all sources and used the
83    explicit (and relatively new) $-notation.  See system/README and the
84    CM manual for more info on this.
85    
86    I also modified the anchoring scheme for some things such as "smlnj",
87    "MLRISC", "cm", etc. to take advantage of the fact that explicit
88    anchors are more expressive: anchor name and first arc do not have to
89    coincide.  This entails the following user-visible change:
90    
91    You have to write $smlnj/foo/bar instead of smlnj/foo/bar.  In
92    particular, when you fire up sml with a command-line argument, say,
93    e.g.:
94    
95       sml '$smlnj/cmb.cm'
96    
97    At the ML toplevel prompt:
98    
99       CM.autoload "$smlnj/cmb.cm";
100    
101    There is also a new controller in CM.Control that can be used to turn
102    off all remaining support for implicit anchors by saying:
103    
104        CM.autoload "$smlnj/
105        #set CM.Control.implicit_anchors false;
106    
107    This causes CM to reject implicitly anchored paths.  This is (for the
108    time being) less permissive than the "final" version where there will
109    be no more such implicit anchors and relative paths will be just that:
110    relative.
111    
112    The next step (version after next version?) will be to make the
113    default for CM.Control.implicit_anchors false.  After the dust has
114    settled, I can then produce the "final" version of this...
115    
116    Note: Since bootstrapping is a bit tricky, I provided new boot files.
117    
118    ----------------------------------------------------------------------
119    Name: Matthias Blume
120    Date: 2000/05/11 16:30:00 JST
121    Tag: blume-20000511-sources
122    Description:
123    
124    The main change is that I added function CM.sources as a generalized
125    version of the earlier CM.makedepend.  This entails the following
126    additional changes:
127    
128      - CM.makedepend has been dropped.
129    
130      - CM manual has been updated.
131    
132      - TOOLS signature and API have been changed.
133    
134    ----------------------------------------------------------------------
135    Name: Allen Leung
136    Date: 2000/05/10 21:17 EDT
137    Tag: leunga-20000510-moby-c--ssa
138    Description:
139    
140      Various bug fixes and new features for C--, Moby and MLRISC optimizations.
141    None of these affect SML/NJ.
142    
143    1. Register Allocation
144    
145        a. A new ra spilling module (ra/ra-spill-with-renaming) is implemented.
146           This module tries to remove local (i.e. basic block level) redundancies
147           during spilling.
148    
149        b. A new framework for performing region based register allocation.
150           Not yet entirely functional.
151    
152    2. X86
153    
154       a. DefUse for POP was missing the stack pointer [found by Lal]
155       b. Reload for CALL was incorrect in X86Spill [found by John]
156       c. Various fixes in X86Spill so that it can be used correctly for
157          the new spilling module.
158    
159    3. SSA/IR
160    
161       a. New module ir/dj-dataflow.sml implements elimination based
162          data flow analysis.
163    
164    4. MLRiscGen
165    
166       a. Fix for gc type annotation
167    
168    5. MDGen
169    
170       Various fixes for machine description -> ml code translation.  For ssa
171       only.
172    
173    ----------------------------------------------------------------------
174    Name: Allen Leung
175    Date: 2000/05/08 22:17 EDT
176    Tag: leunga-20000508-labexp
177    Description:
178    
179      Fermin has found a few assembly problems with constant expressions
180      generated in LabelExp.  Mostly, the problems involve extra parentheses,
181      which choke on dumb assemblers.  This is his fix.
182    
183    ----------------------------------------------------------------------
184    Name: Dave MacQueen
185    Date: 2000/04/09 14:00 EDT
186    Tag: dbm-20000502-Version_110_28
187    Description:
188    
189    1. Updated src/compiler/TopLevel/main/version.sml to version 110.28
190    
191    2. Updated config/version to 110.28
192    
193    3. Updated config/srcarchiveurl
194    
195    3. New boot files!
196       ftp://ftp.research.bell-labs.com/dist/smlnj/working/110.28/
197    
198    ----------------------------------------------------------------------
199    Name: Matthias Blume
200    Date: 2000/05/01 19:05:00 JST
201    Tag: blume-20000501-noweb
202    Description:
203    
204    A new noweb tool has been added.  The existing system is entirely
205    unaffected by this, but some CM users have asked for renewed noweb
206    support.  Everything is documented in the CM manual.
207    
208    New (plugin) libraries:
209    
210       noweb-tool.cm
211       nw-ext.cm
212    
213    ----------------------------------------------------------------------
214    Name: Dave MacQueen
215    Date: 2000/04/30 12:40PM EDT
216    Tag: dbm-20000430-bug_fixes
217    Description:
218    
219    1. Fix for bug 1498
220       smlnj/src/system/Basis/Implementation/Unsafe/object.sig
221       smlnj/src/system/Basis/Implementation/Unsafe/object.sml
222         added toRealArray function
223       smlnj/src/compiler/MiscUtil/print/ppobj.sml
224         added check for tag Obj.RealArray to array printing case in ppObj
225    
226    2. Fix for bug 1510
227       smlnj/src/compiler/Semant/types/typesutil.sml
228         fixed definition of dummyargs (used by equalTycon) so that
229         dummy args are distinct types
230    
231    ----------------------------------------------------------------------
232    Name: Matthias Blume
233    Date: 2000/04/30 01:00:00 JST
234    Tag: blume-20000430-versions
235    Description:
236    
237    1. CM version numbering added.  This is an implementation of Lal's
238       proposal for adding version numbers and version checking to .cm
239       files.  Lal said that his proposal was just that -- a proposal.
240       For the time being I went ahead and implemented it so that people
241       can comment on it.  Everything is completely backward-compatible
242       (except for the stable library format, i.e., new bootfiles!).
243    
244       As usual, see the CM manual for details.
245    
246    2. An alternative syntax for anchored paths has been implemented.
247       Dave has recently voiced the same concerns that I had when I did
248       this, so there should be some support.  My take is that eventually
249       I will let support for the current syntax (where anchors are
250       "implicit") fade out in favor of the new, explicit syntax.
251       In order to be backward-compatible, both old and new syntax are
252       currently supported.
253    
254       Again, see the CM manual for details.
255    
256    3. Parallel make is trying to be slightly smarter:  When the master
257       process finds a "bottleneck", i.e., when there is only one
258       compilation unit that can be compiled and everybody else is
259       waiting on it, then it will simply compile it directly instead
260       of clumsily telling one of the slaves to do it.
261    
262    4. Support for "unsharing" added.  This is necessary in order to be
263       able to have two different versions of the same library running
264       at the same time (e.g., for trying out a new MLRISC while still
265       having the old MLRISC linked into the current compiler, etc.)
266       See the CM manual.
267    
268    5. Simple "makedepend" functionality added for generating Makefile
269       dependency information.  (This is rather crude at the moment.
270       Expect some changes here in the future.)
271    
272    6. ".fun" added as a recognized suffix for ML files. Also documented
273       explicitly in the manual that the fallback behavior (unknown suffix
274       -> ML file) is not an official feature!
275    
276    7. Small changes to the pickler for stable libraries.
277    
278    8. Several internal changes to CM (for cleanup/improvement).
279    
280    
281    !!!! NEW BINFILES !!!!
282    
283    ----------------------------------------------------------------------
284    Name: Matthias Blume
285    Date: 2000/04/28 17:30:00 JST
286    Tag: blume-20000428-pathconfig
287    Description:
288    
289    1. I changed config/install.sh to remove duplicate entries from the
290       lib/pathconfig file at the end.  Moreover, the final version of
291       lib/pathconfig is sorted alphabetically.  The same (sorting) is done
292       in src/system/installml.
293    
294    2. The config/install.sh script now consistently uses relative
295       pathnames in lib/pathconfig whenever the anchor is in the lib
296       directory.  (So far this was true for the libraries that come
297       pre-compiled and bundled as part of the bootfiles but not for
298       libraries that are compiled by the script itself.)
299    
300    ----------------------------------------------------------------------
301    Name: Matthias Blume
302    Date: 2000/04/26 13:10:00 JST
303    Tag: blume-20000426-fun_suffix
304    Description:
305    
306    Added ".fun" as a recognized file name suffix (for ML code).
307    
308    ----------------------------------------------------------------------
309    Name: Allen Leung
310    Date: 2000/04/25 17:00:00 EST
311    Tag: leunga-20000425-alpha-ra
312    Description:
313    
314    1. Alpha
315    
316        PSEUDOARITH was missing in AlphaRewrite.  This causes an endless loop
317    in C--.
318    
319    2. RA
320    
321       Added a flag "ra-dump-size" to print out the size of the flowgraph
322       and the interference graph.
323    
324    ----------------------------------------------------------------------
325    Name: Dave MacQueen
326    Date: 2000/04/25/
327    Tag: dbm-20000425-mlyacc_doc_examples
328    Description:
329      Updated mlyacc.tex sections 5 and 7 for SML '97 and CM.
330      Updated all three examples in src/ml-yacc/examples to run
331      under 110.* using CM.make.
332    
333    ----------------------------------------------------------------------
334    Name: Allen Leung
335    Date: 2000/04/20 23:04:00 EST
336    Tag: leunga-20000420-ssa-c---stuff
337    Description:
338    
339      This update synchronizes my repository with Yale's.  Most of these
340    changes, however, do not affect SML/NJ at all (the RA is an exception).
341    
342    1. Register Allocator
343    
344       a. An improvement in the interference graph construction:
345          Given a copy
346    
347                s <- t
348    
349          no interference edge between s and t is added for this definition of s.
350    
351       b. I've added two new spill heuristic modules that Fermin and I developed
352          (in the new library RA.cm). These are unused in SML/NJ but maybe
353          useful for others (Moby?)
354    
355    2. X86
356    
357       a. Various fixes in the backend provided by Fermin [C--] and Lal.
358    
359    3. Alpha
360    
361       a. Added the BSR instruction and code generation that goes with it [C--]
362       b. Other fixes too numerous to recount provided by Fermin [C--]
363    
364    4. Regmaps
365    
366       a. The regmaps are not initialized with the identity physical bindings
367          at creation time.  This is unneeded.
368    
369    5. MLRISC Optimizations
370    
371       a. The DJ-Graph module can now compute the iterated dominance frontiers
372          intersects with liveness incrementally in linear time! Woohoo!
373          This is now used in my new SSA construction algorithm.
374    
375       b. THe branch reorganization module is now smarter about linear chains of
376          basic blocks.
377    
378    
379    ----------------------------------------------------------------------
380    Name: Matthias Blume
381    Date: 2000/04/12 13:52:00 JST
382    Tag: blume_main_v110p27_1
383    Description:
384    
385    Changed install.sh script to handle archive files without version number
386    and to use "boot.<arch>-<os>" instead of "sml.boot.<arch>-<os>" for the
387    name of the boot file archive.
388    
389    ----------------------------------------------------------------------
390    Name: Dave MacQueen
391    Date: 2000/04/09 14:00 EDT
392    Tag: dbm-20000410-Version_110_27
393    Description:
394    
395    1. Updated src/compiler/TopLevel/main/version.sml to version 110.27
396    
397    2. Updated src/config/version to 110.27
398    
399    3. New boot files!
400    
401    ----------------------------------------------------------------------
402    Name: Allen Leung
403    Date: 2000/04/09 19:09:00 EST
404    Tag: leunga-20000409-misc
405    Description:
406    
407    1.  Yet another fix for x86 assembly for idivl, imull, mull and friends.
408    
409    2.  Miscellaneous improvements to MLRISC (unused in sml/nj)
410    
411    ----------------------------------------------------------------------
412    Name: Stefan
413    Date: 2000/04/07 10:00:00 EDT
414    Tag: monnier-20000406-branch-handling
415    Description:
416    
417    Improved handling of branches (mostly those generated from
418    polymorphic equality), removed switchoff and changed the
419    default optimization settings (more cpsopt and less flintopt).
420    
421    ----------------------------------------------------------------------
422    Name: Allen Leung
423    Date: 2000/04/06 01:30:00 EST
424    Tag: leunga-20000406-peephole-x86-SSA-2
425    Description:
426    
427       Forgot a few files.
428    
429    ----------------------------------------------------------------------
430    Name: Allen Leung
431    Date: 2000/04/06 00:36:00 EST
432    Tag: leunga-20000406-peephole-x86-SSA
433    Description:
434    
435    1.  New Peephole code
436    
437    2.  Minor improvement to X86 instruction selection
438    
439    3.  Various fixes to SSA and machine description -> code translator
440    
441    ----------------------------------------------------------------------
442    Name: Matthias Blume
443    Date: 2000/04/05 12:30:00 JST
444    Tag: blume_main_v110p26p2_3
445    Description:
446    
447    This update just merges three minor cosmetic updates to CM's sources
448    to get ready for the 110.27 code freeze on Friday.  No functionality
449    has changed.
450    
451    ----------------------------------------------------------------------
452    Name: Allen Leung
453  Date: 2000/04/04 19:39:00 EST  Date: 2000/04/04 19:39:00 EST
454  Tag: leunga-20000404-x86-asm  Tag: leunga-20000404-x86-asm
455  Description:  Description:

Legend:
Removed from v.594  
changed lines
  Added in v.647

root@smlnj-gforge.cs.uchicago.edu
ViewVC Help
Powered by ViewVC 1.0.0