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lustrec / src / causality.ml @ e9350b02

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# Date Author Comment
307aba8d 09/26/2014 05:52 PM Xavier Thirioux

- changed the basic optimization scheme (option -O 2), which unfolds
local variables and global variables that are either cheap to evaluate
or used no more than once.

67896f6d 09/24/2014 12:13 PM Xavier Thirioux

- corrected a bug in optimizating mode (option -O 3)
- changed the printing of unused variables

6a1a01d2 09/14/2014 08:08 PM Xavier Thirioux

- Added major feature: Lustre V6 automata !!!
- one automata example added
- changed the reset condition in node calls (now a simple bool expr)
- bug corrected in clock calculus
- bug corrected in traceability info
- added field in variables to test whether they are original...

1eda3e78 09/09/2014 06:03 PM Xavier Thirioux

- work in progress for automata...

29ced7be 09/04/2014 04:20 PM Xavier Thirioux

- some steps towards integration of automata

8fa083d5 07/11/2014 04:29 PM Xavier Thirioux

- still some improvements in optimizing in machine code ...

01f1a1f4 07/10/2014 12:49 PM Xavier Thirioux

- added missing constraint check when sub-clocking
tuple expressions
- added an algorithm that reuses dead or clock-disjoint
variables instead of declaring/using new ones.
- NOT carefully tested. Use option -O 3 if you want
to give it a try...

b38ffff3 07/09/2014 09:57 AM Pierre-Loïc Garoche

Updated the licence info and header for each file.
Moved backends in separate folders

2cf39a8e 07/08/2014 04:53 PM Xavier Thirioux

- many bugs/limitations in lifting operators to tuples have been worked out:
- typing/clock calculus/normalization now work properly
- still, a bug in annot generation (this one is for Ploc !!)
in file normalization, line 396
- bug corrected in subtyping...

34a5a072 07/07/2014 10:35 AM Xavier Thirioux

work in progress in liveness analysis...

1837ce98 07/03/2014 10:40 PM Xavier Thirioux

added some infrastructure to ease optimization (reusing vars)

0038002e 07/02/2014 05:29 PM Pierre-Loïc Garoche

Prepared first stage of code reorg:
1. moved type def in lustrespec.ml
2. moved constructor and basic functions in corelang
3. Modified eexpr with prenext quantifiers

7ecdb0aa 07/02/2014 04:14 PM Xavier Thirioux

more steps toward reusing variables (dead ones + clock disjoint ones)

d96d54ac 06/27/2014 04:29 PM Xavier Thirioux

added construction of a fanin table for local variables of a node.
could be useful for a finer variable elimination scheme at the Lustre level.
to be continued...

9aaee7f9 06/26/2014 04:48 PM Xavier Thirioux

added warnings for useless variables (at verbose level 1)
- exact definition of 'useless' may be further refined
- display could certainly be improved

d9d34564 05/19/2014 01:44 PM Pierre-Loïc Garoche

Bug solved on tuple equalities in expressions (eg. OK = (a,b,c) = (d,e,f))

97498b53 04/01/2014 06:03 PM Xavier Thirioux

still computing disjoint clock information (for reusing more variables)

7a737ed5 03/31/2014 04:29 PM Xavier Thirioux

computing statically disjoint variables (to enhance resusability)

a1f57a52 03/24/2014 09:22 AM Xavier Thirioux

- some minor adjustments...

84d9893e 03/24/2014 09:05 AM Xavier Thirioux

- corrected causality bug (cf. previous commit)

e8c0f452 03/20/2014 03:41 PM Xavier Thirioux

liveness analysis improved. BUG found in causality wrt clocks...

d4101ea0 03/19/2014 06:08 PM Xavier Thirioux

- reimplemented computation of dead variables
- added computation of a reuse policy (depending on types)
- not yet used though, would have to change code generation
in order to be useful...

0cbf0839 10/02/2013 08:13 AM Pierre-Loïc Garoche

Moved files to trunk in lustre_compiler