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Diff of /sml/trunk/HISTORY

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revision 1063, Wed Feb 13 21:41:53 2002 UTC revision 1069, Fri Feb 15 21:00:05 2002 UTC
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14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16  Name: Matthias Blume  Name: Matthias Blume
17    Date: 2002/02/15 16:00:00 EST
18    Tag: Release_110_39
19    Description:
20    
21    Working release 110.39.  New bootfiles.
22    
23    ----------------------------------------------------------------------
24    Name: Matthias Blume
25    Date: 2002/02/15 14:17:00 EST
26    Tag: blume-20020215-showbindings
27    Description:
28    
29    Added EnvRef.listBoundSymbols and CM.State.showBindings.  Especially
30    the latter can be useful for exploring what bindings are available at
31    the interactive prompt.  (The first function returns only the list
32    of symbols that are really bound, the second prints those but also the
33    ones that CM's autoloading mechanism knows about.)
34    
35    ----------------------------------------------------------------------
36    Name: Matthias Blume
37    Date: 2002/02/15 12:08:00 EST
38    Tag: blume-20020215-iptrs
39    Description:
40    
41    Two improvements to ml-nlffigen:
42    
43      1. Write files only if they do not exist or if their current contents
44         do not coincide with what's being written.  (That is, avoid messing
45         with the time stamps unless absolutely necessary.)
46    
47      2. Implement a "repository" mechanism for generated files related
48         to "incomplete pointer types".   See the README file for details.
49    
50    ----------------------------------------------------------------------
51    Name: Matthias Blume
52    Date: 2002/02/14 11:50:00 EST
53    Tag: blume-20020214-quote
54    Description:
55    
56    Added a type 't t_' to tag.sml (in ml-nlffi-lib.cm).  This is required
57    because of the new and improved tag generation scheme.  (Thanks to Allen
58    Leung for pointing it out.)
59    
60    ----------------------------------------------------------------------
61    Name: Lal George
62    Date: 2002/02/14 09:55:27 EST 2002
63    Tag: george-20020214-isabelle-bug
64    Description:
65    
66    Fixed the MLRISC bug sent by Markus Wenzel regarding the compilation
67    of Isabelle on the x86.
68    
69    From Allen:
70    -----------
71     I've found the problem:
72    
73         in ra-core.sml, I use the counter "blocked" to keep track of the
74         true number of elements in the freeze queue.  When the counter goes
75         to zero, I skip examining the queue.  But I've messed up the
76         bookkeeping in combine():
77    
78             else ();
79             case !ucol of
80               PSEUDO => (if !cntv > 0 then
81                     (if !cntu > 0 then blocked := !blocked - 1 else ();
82                                        ^^^^^^^^^^^^^^^^^^^^^^^
83                      moveu := mergeMoveList(!movev, !moveu)
84                     )
85                  else ();
86    
87         combine() is called to coalesce two nodes u and v.
88         I think I was thinking that if the move counts of u and v are both
89         greater than zero then after they are coalesced then one node is
90         removed from the freeze queue.  Apparently I was thinking that
91         both u and v are of low degree, but that's clearly not necessarily true.
92    
93    
94    02/12/2002:
95        Here's the patch.  HOL now compiles.
96    
97        I don't know how this impact on performance (compile
98        time or runtime).  This bug caused the RA (especially on the x86)
99        to go thru the potential spill phase when there are still nodes on the
100        freeze queue.
101    
102    
103    
104    
105    ----------------------------------------------------------------------
106    Name: Matthias Blume
107    Date: 2002/02/13 22:40:00 EST
108    Tag: blume-20020213-fptr-rtti
109    Description:
110    
111    Fixed a bug in ml-nlffigen that was introduced with one of the previous
112    updates.
113    
114    ----------------------------------------------------------------------
115    Name: Matthias Blume
116  Date: 2002/02/13 16:41:00 EST  Date: 2002/02/13 16:41:00 EST
117  Tag: blume-20020213-cmlpq  Tag: blume-20020213-cmlpq
118  Description:  Description:

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