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

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revision 1053, Wed Feb 6 19:11:13 2002 UTC revision 1059, Mon Feb 11 17:05:33 2002 UTC
# Line 13  Line 13 
13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Matthias Blume
17    Date: 2002/02/11 12:05:00 EST
18    Tag: blume-20020211-gensml
19    Description:
20    
21    A quick fix for a problem with GenSML (in the pgraph-util library):
22    Make generation of toplevel "local" optional.  (Strictly speaking,
23    signature definitions within "local" are not legal SML.)
24    
25    Other than that: updates to INSTALL and cm/TODO.
26    
27    ----------------------------------------------------------------------
28    Name: Matthias Blume
29    Date: 2002/02/08 15:00:00 EST
30    Tag: blume-20020208-uniquepid
31    Description:
32    
33    0. Version number has been bumped to 110.38.1.  NEW BOOTFILES!!!
34    
35    1. The installer (config/install.sh) has gotten smarter:
36    
37         - Configuration options are a bit easier to specify now
38           (in config/targets).
39         - Bug in recognizing .tar.bz2 files fixed.
40         - Installer automatically resolves dependencies between
41           configuration options (e.g., if you ask for eXene, you will
42           also get cml -- regardless whether you asked for it or not).
43         - Installer can run in "quieter mode" by setting the environment
44           variable INSTALL_QUIETLY to "true".  "Quieter" does not mean
45           "completely silent", though.
46         - Build HashCons library as part of smlnj-lib.
47    
48    2. A new scheme for assigning persistent identifiers to compilation
49       units (and, by extension, to types etc.) has been put into place.
50       This fixes a long-standing bug where types and even dynamic values
51       can get internally confused, thereby compromising type safety
52       (abstraction) and dynamic correctness.  See
53    
54         http://cm.bell-labs.com/cm/cs/who/blume/pid-confusion.tgz
55    
56       for an example of how things could go wrong until now.
57    
58       The downside of the new scheme is that pids are not quite as
59       persistent as they used to be: CM will generate a fresh pid
60       for every compilation unit that it thinks it sees for the first
61       time.  That means that if you compile starting from a clean, fresh
62       source tree at two different times, you end up with different
63       binaries.
64    
65       Cutoff recompilation, however, has not been compromised because
66       CM keeps pid information in special caches between runs.
67    
68    ----------------------------------------------------------------------
69    Name: Lal George
70    Date: 2002/02/07 15:34:13 EST 2002
71    Tag: <none>
72    Description:
73    
74    Compilers that generate assembly code may produce  global labels
75    whose value is resolved at link time. The various peephole optimization
76    modules did not take this in account.
77    
78    TODO. The Labels.addrOf function should really return an option
79    type so that clients are forced to deal with this issue, rather
80    than an exception being raised.
81    
82    ----------------------------------------------------------------------
83  Name: Lal George  Name: Lal George
84  Date: 2002/02/06 13:55:02 EST  Date: 2002/02/06 13:55:02 EST
85  Tag: george-20020206-ra-breakup  Tag: george-20020206-ra-breakup
# Line 26  Line 93 
93      trap instruction (in this case they are harmless since none of the      trap instruction (in this case they are harmless since none of the
94      integers overflow.)      integers overflow.)
95    
96  2. Plugged out various utility modules that were embedded in the modules  2. Pulled out various utility modules that were embedded in the modules
97     of the register allocator. I need these modules for other purposes, but     of the register allocator. I need these modules for other purposes, but
98     they are not complete enough to put into a library just yet.     they are not complete enough to put into a library (just yet).
99  ----------------------------------------------------------------------  ----------------------------------------------------------------------
100  Name: Matthias Blume  Name: Matthias Blume
101  Date: 2002/01/31 16:05:00 EST  Date: 2002/01/31 16:05:00 EST

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