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

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revision 1124, Thu Mar 7 19:49:22 2002 UTC revision 1132, Mon Mar 11 18:32:50 2002 UTC
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13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Matthias Blume
17    Date: 2002/03/11 13:30:00 EST
18    Tag: blume-20020311-mltreeeval
19    Description:
20    
21    A functor parameter was missing.
22    
23    ----------------------------------------------------------------------
24    Name: Allen Leung
25    Date: 2002/03/11 10:30:00 EST
26    Tag: leunga-20020310-runtime-string0
27    Description:
28    
29       The representation of the empty string now points to a
30    legal null terminated C string instead of unit.  It is now possible
31    to convert an ML string into C string with InlineT.CharVector.getData.
32    This compiles into one single machine instruction.
33    
34    ----------------------------------------------------------------------
35    Name: Allen Leung
36    Date: 2002/03/10 23:55:00 EST
37    Tag: leunga-20020310-x86-call
38    Description:
39    
40       Added machine generation for CALL instruction (relative displacement mode)
41    
42    ----------------------------------------------------------------------
43    Name: Matthias Blume
44    Date: 2002/03/08 16:05:00
45    Tag: blume-20020308-entrypoints
46    Description:
47    
48    Version number bumped to 110.39.1.  NEW BOOTFILES!
49    
50    Entrypoints: non-zero offset into a code object where execution should begin.
51    
52    - Added the notion of an entrypoint to CodeObj.
53    - Added reading/writing of entrypoint info to Binfile.
54    - Made runtime system bootloader aware of entrypoints.
55    - Use the address of the label of the first function given to mlriscGen
56      as the entrypoint.  This address is currently always 0, but it will
57      not be 0 once we turn on block placement.
58    - Removed the linkage cluster code (which was The Other Way(tm) of dealing
59      with entry points) from mlriscGen.
60    
61    ----------------------------------------------------------------------
62    Name: Allen Leung
63    Date: 2002/03/07 20:45:00 EST
64    Tag: leunga-20020307-x86-cmov
65    Description:
66    
67       Bug fixes for CMOVcc on x86.
68    
69       1. Added machine code generation for CMOVcc
70       2. CMOVcc is now generated in preference over SETcc on PentiumPro or above.
71       3. CMOVcc cannot have an immediate operand as argument.
72    
73    ----------------------------------------------------------------------
74    Name: Matthias Blume
75    Date: 2002/03/07 16:15:00 EST
76    Tag: blume-20020307-controls
77    Description:
78    
79    This is a very large but mostly boring patch which makes (almost)
80    every tuneable compiler knob (i.e., pretty much everything under
81    Control.* plus a few other things) configurable via both the command
82    line and environment variables in the style CM did its configuration
83    until now.
84    
85    Try starting sml with '-h' (or, if you are brave, '-H')
86    
87    To this end, I added a structure Controls : CONTROLS to smlnj-lib.cm which
88    implements the underlying generic mechanism.
89    
90    The interface to some of the existing such facilities has changed somewhat.
91    For example, the MLRiscControl module now provides mkFoo instead of getFoo.
92    (The getFoo interface is still there for backward-compatibility, but its
93    use is deprecated.)
94    
95    The ml-build script passes -Cxxx=yyy command-line arguments through so
96    that one can now twiddle the compiler settings when using this "batch"
97    compiler.
98    
99    TODO items:
100    
101    We should go through and throw out all controls that are no longer
102    connected to anything.  Moreover, we should go through and provide
103    meaningful (and correct!) documentation strings for those controls
104    that still are connected.
105    
106    Currently, multiple calls to Controls.new are accepted (only the first
107    has any effect).  Eventually we should make sure that every control
108    is being made (via Controls.new) exactly once.  Future access can then
109    be done using Controls.acc.
110    
111    Finally, it would probably be a good idea to use the getter-setter
112    interface to controls rather than ref cells.  For the time being, both
113    styles are provided by the Controls module, but getter-setter pairs are
114    better if thread-safety is of any concern because they can be wrapped.
115    
116    *****************************************
117    
118    One bug fix: The function blockPlacement in three of the MLRISC
119    backpatch files used to be hard-wired to one of two possibilities at
120    link time (according to the value of the placementFlag).  But (I
121    think) it should rather sense the flag every time.
122    
123    *****************************************
124    
125    Other assorted changes (by other people who did not supply a HISTORY entry):
126    
127    1. the cross-module inliner now works much better (Monnier)
128    2. representation of weights, frequencies, and probabilities in MLRISC
129       changed in preparation of using those for weighted block placement
130       (Reppy, George)
131    
132    ----------------------------------------------------------------------
133  Name: Lal George  Name: Lal George
134  Date: 2002/03/07 14:44:24 EST 2002  Date: 2002/03/07 14:44:24 EST 2002
135  Tag: george-20020307-weighted-block-placement  Tag: george-20020307-weighted-block-placement

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