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	revision 643, Fri May 12 08:29:15 2000 UTC	revision 656, Fri Jun 9 03:39:04 2000 UTC
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13	Description:	Description:
14	----------------------------------------------------------------------	----------------------------------------------------------------------
15	Name: Matthias Blume	Name: Matthias Blume
16		Date: 2000/06/09 12:40:00
17		Tag: blume-20000609-log
18		Description:
19
20		- Removed all(?) remaining RCS Log entries from sources.
21
22		- Fixed bug in ml-yacc and ml-lex sources (use explicit anchors for
23		anchored paths).
24
25		----------------------------------------------------------------------
26		Name: Matthias Blume
27		Date: 2000/06/07 17:00:00 JST
28		Tag: blume-20000607-no-implicit-anchors
29		Description:
30
31		1. This update changes the default setting for
32		CM.Control.implicit_anchors from true to false.  This means that
33		implicit anchors are no longer permitted by default.  I also tried to
34		make sure that nothing else still relies on implicit anchors.
35		(This is the next step on the schedule towards a CM that does not even
36		have the notion of implicit anchors anymore.)
37
38		2. More CM manual updates.
39
40		3. I managed to track down and fix the pickling bug I mentioned last
41		time.  Because of the previously existing workaround, this entails no
42		immediate practical changes.
43
44		----------------------------------------------------------------------
45		Name: Matthias Blume
46		Date: 2000/06/06 11:15:00 JST
47		Tag: blume-20000606-lazierpickle
48		Description:
49
50		!!!! NEW BOOT FILES !!!!
51
52		* The main purpose of this update is to make library pickles lazier in
53		order to reduce the initial space penalty for autoloading a library.
54		As a result, it is now possible to have $smlnj/compiler.cm
55		pre-registered.  This should take care of the many complaints or
56		inquiries about missing structure Compiler.  This required changes to
57		CM's internal data structures and small tweaks to some algorithms.
58
59		As a neat additional effect, it is no longer necessary (for the sake
60		of lean heap image files) to distinguish between a "minimal" CM and a
61		"full" CM.  Now, there is only one CM (i.e., the "full" version:
62		$smlnj/cm.cm aka $smlnj/cm/full.cm), and it is always available at the
63		interactive top level. ($smlnj/cm/minimal.cm is gone.)
64
65		To make the life of compiler-hackers easier, "makeml" now also
66		pre-registers $smlnj/cmb.cm (aka $smlnj/cmb/current.cm).  In other
67		words, after you bootstrap a new sml for the first time, you will not
68		have to autoload $smlnj/cmb.cm again afterwards.  (The first time
69		around you will still have to do it, though.)
70
71		* A second change consists of major updates to the CM manual.  There
72		are now several appendices with summary information and also a full
73		specification of the CM description file syntax.
74
75		* In directory src/system I added the script "allcross".  This script
76		invokes sml and cross-compiles the compiler for all supported
77		architectures.  (Useful when providing a new set of boot files.)
78
79		* There seems to be a latent bug in my "lazy pickles" mechanism.  I
80		added a small tweak to pickle-util.sml to work around this problem,
81		but it is not a proper fix yet.  I will investigate further.  (The
82		effect of the bug was an inflation of library pickle size.)
83
84		* Version number increased to 110.28.1 (to avoid compatibility problems).
85
86		----------------------------------------------------------------------
87		Name: Allen Leung
88		Date: 2000/05/25 17:28 EDT
89		Tag: leunga-20000525-ra
90		Description:
91
92		Fixed a bug in freezing phase of the register allocator.
93
94		----------------------------------------------------------------------
95		Name: Allen Leung
96		Date: 2000/05/15 22:53 EDT
97		Tag: leunga-20000515-alpha-x86-ra
98		Description:
99
100		1. Alpha
101
102		Slight cleanup.  Removed the instruction SGNXL
103
104		2. X86
105
106		Added the following instructions to the instruction set:
107
108		ROLx, RORx,
109		BTx, BTSx, BTLx, BTRx,
110		XCHGx, and variants with the LOCK prefix
111
112		3. Register Allocation
113
114		The module ra-rewrite-with-renaming has been improved.
115
116		These have no effect on SML/NJ.
117
118		----------------------------------------------------------------------
119		Name: Matthias Blume
120		Date: 2000/05/15 16:20:00 JST
121		Tag: blume-20000515-lightrebuild
122		Description:
123
124		1. I added an alternative to "-rebuild" to "makeml".  The difference is
125		that prior to calling CMB.make' the CM-variable "LIGHT" will be
126		defined.  In effect, the command will not build any cross-compiler
127		backends and therefore finish more quickly.
128
129		The "fixpt" script also takes a "-light" switch to be able to use
130		this new facility while compiling for a fixpoint.
131
132		2. I replaced all mentions of anchored paths in group owner specifications
133		with simple relative paths (usually starting with "..").
134		The rationale is that a library's internal workings should not be
135		compromised by the lack of some anchor.  (An anchor is necessary
136		for someone who wants to refer to the library by an anchored path,
137		but it should not be necessary to build the same library in the first
138		place.)
139
140		3. I changed the way CM's tool mechanism determines the shell command
141		string used for things like ml-yacc etc. so that it does not break
142		when CM.Control.implicit_anchors is turned off.
143
144		----------------------------------------------------------------------
145		Name: Matthias Blume
146		Date: 2000/05/12 18:20:00 JST
147		Tag: blume-20000512-ml-build
148		Description:
149
150		Fixed a bug in config/_ml-build that prevented ml-yacc and ml-lex from
151		getting installed properly (by config/install.sh).
152
153		----------------------------------------------------------------------
154		Name: Matthias Blume
155	Date: 2000/05/12 17:30:00 JST	Date: 2000/05/12 17:30:00 JST
156	Tag: blume-20000512-anchors	Tag: blume-20000512-anchors
157	Description:	Description:

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