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

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revision 640, Tue May 9 02:33:09 2000 UTC revision 641, Thu May 11 01:16:45 2000 UTC
# Line 13  Line 13 
13  Description:  Description:
14  ----------------------------------------------------------------------  ----------------------------------------------------------------------
15  Name: Allen Leung  Name: Allen Leung
16    Date: 2000/05/10 21:17 EDT
17    Tag: leunga-20000510-moby-c--ssa
18    Description:
19    
20      Various bug fixes and new features for C--, Moby and MLRISC optimizations.
21    None of these affect SML/NJ.
22    
23    1. Register Allocation
24    
25        a. A new ra spilling module (ra/ra-spill-with-renaming) is implemented.
26           This module tries to remove local (i.e. basic block level) redundancies
27           during spilling.
28    
29        b. A new framework for performing region based register allocation.
30           Not yet entirely functional.
31    
32    2. X86
33    
34       a. DefUse for POP was missing the stack pointer [found by Lal]
35       b. Reload for CALL was incorrect in X86Spill [found by John]
36       c. Various fixes in X86Spill so that it can be used correctly for
37          the new spilling module.
38    
39    3. SSA/IR
40    
41       a. New module ir/dj-dataflow.sml implements elimination based
42          data flow analysis.
43    
44    4. MLRiscGen
45    
46       a. Fix for gc type annotation
47    
48    5. MDGen
49    
50       Various fixes for machine description -> ml code translation.  For ssa
51       only.
52    
53    ----------------------------------------------------------------------
54    Name: Allen Leung
55  Date: 2000/05/08 22:17 EDT  Date: 2000/05/08 22:17 EDT
56  Tag: leunga-20000508-labexp  Tag: leunga-20000508-labexp
57  Description:  Description:

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