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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 1128, Fri Mar 8 21:05:27 2002 UTC
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13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Matthias Blume
17    Date: 2002/03/08 16:05:00
18    Tag: blume-20020308-entrypoints
19    Description:
20    
21    Version number bumped to 110.39.1.  NEW BOOTFILES!
22    
23    Entrypoints: non-zero offset into a code object where execution should begin.
24    
25    - Added the notion of an entrypoint to CodeObj.
26    - Added reading/writing of entrypoint info to Binfile.
27    - Made runtime system bootloader aware of entrypoints.
28    - Use the address of the label of the first function given to mlriscGen
29      as the entrypoint.  This address is currently always 0, but it will
30      not be 0 once we turn on block placement.
31    - Removed the linkage cluster code (which was The Other Way(tm) of dealing
32      with entry points) from mlriscGen.
33    
34    ----------------------------------------------------------------------
35    Name: Allen Leung
36    Date: 2002/03/07 20:45:00 EST
37    Tag: leunga-20020307-x86-cmov
38    Description:
39    
40       Bug fixes for CMOVcc on x86.
41    
42       1. Added machine code generation for CMOVcc
43       2. CMOVcc is now generated in preference over SETcc on PentiumPro or above.
44       3. CMOVcc cannot have an immediate operand as argument.
45    
46    ----------------------------------------------------------------------
47    Name: Matthias Blume
48    Date: 2002/03/07 16:15:00 EST
49    Tag: blume-20020307-controls
50    Description:
51    
52    This is a very large but mostly boring patch which makes (almost)
53    every tuneable compiler knob (i.e., pretty much everything under
54    Control.* plus a few other things) configurable via both the command
55    line and environment variables in the style CM did its configuration
56    until now.
57    
58    Try starting sml with '-h' (or, if you are brave, '-H')
59    
60    To this end, I added a structure Controls : CONTROLS to smlnj-lib.cm which
61    implements the underlying generic mechanism.
62    
63    The interface to some of the existing such facilities has changed somewhat.
64    For example, the MLRiscControl module now provides mkFoo instead of getFoo.
65    (The getFoo interface is still there for backward-compatibility, but its
66    use is deprecated.)
67    
68    The ml-build script passes -Cxxx=yyy command-line arguments through so
69    that one can now twiddle the compiler settings when using this "batch"
70    compiler.
71    
72    TODO items:
73    
74    We should go through and throw out all controls that are no longer
75    connected to anything.  Moreover, we should go through and provide
76    meaningful (and correct!) documentation strings for those controls
77    that still are connected.
78    
79    Currently, multiple calls to Controls.new are accepted (only the first
80    has any effect).  Eventually we should make sure that every control
81    is being made (via Controls.new) exactly once.  Future access can then
82    be done using Controls.acc.
83    
84    Finally, it would probably be a good idea to use the getter-setter
85    interface to controls rather than ref cells.  For the time being, both
86    styles are provided by the Controls module, but getter-setter pairs are
87    better if thread-safety is of any concern because they can be wrapped.
88    
89    *****************************************
90    
91    One bug fix: The function blockPlacement in three of the MLRISC
92    backpatch files used to be hard-wired to one of two possibilities at
93    link time (according to the value of the placementFlag).  But (I
94    think) it should rather sense the flag every time.
95    
96    *****************************************
97    
98    Other assorted changes (by other people who did not supply a HISTORY entry):
99    
100    1. the cross-module inliner now works much better (Monnier)
101    2. representation of weights, frequencies, and probabilities in MLRISC
102       changed in preparation of using those for weighted block placement
103       (Reppy, George)
104    
105    ----------------------------------------------------------------------
106  Name: Lal George  Name: Lal George
107  Date: 2002/03/07 14:44:24 EST 2002  Date: 2002/03/07 14:44:24 EST 2002
108  Tag: george-20020307-weighted-block-placement  Tag: george-20020307-weighted-block-placement

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