Commit graph

359 commits

Author SHA1 Message Date
Gwenaël Delaval
e885f82e00 Bug correction/feature adding: abstraction within contracts
Allowing additional inputs from abstractions within contracts. Thus,
calling non-inlined subnodes is allowed, as well as operations on
non-Boolean inputs or states (in contracts).
2014-02-21 17:39:37 +01:00
Gwenaël Delaval
c61e01f19b Correct handling of comparison operators in Sigali
- bug fix: comparison between two non-constant integer expressions in Sigali
 - bug fix: correct handling of "=" and "<>" operators in Sigali
2014-01-14 23:09:22 +01:00
Gwenaël Delaval
71497a82b2 Corrected bug in inline_extvalues
Inline_extvalues: added local variables of contracts into environments
2013-11-19 20:39:01 +01:00
Gwenaël Delaval
f3d34f57d1 Abstraction of integers for Sigali
Correction of abstraction for Sigali: integer equations comprising no
integer variables should not be abstracted
2013-09-05 19:03:22 +02:00
Gwenaël Delaval
71f7db2d11 Bug correction in Mls_printer and Hept_printer
Correction of infix operators printing : infix printing only
when two arguments of pervasives infix operators (no assertions
on number of arguments).
2013-07-10 09:57:19 +02:00
Gwenal Delaval
f696203eb1 Bug in sigalimain
Bug correction: code generation to sigali for stateless nodes

=> stateless nodes handled like stateful nodes, if not in pervasives.
2013-07-09 21:16:30 +02:00
Gwenal Delaval
2d150a3a3d Infix operators in printers
Infix operators handled in Heptagon and Minils printers
2013-07-09 21:15:31 +02:00
Cédric Pasteur
a00620ca19 Fixed interference of fast memories
A fast memory should be considered alive during
the whole step function when its clock is false.
2013-05-06 11:47:05 +02:00
Cédric Pasteur
99dc7820c7 Avoid crash in memalloc
Check if both variables are optmized
2013-04-22 18:11:10 +02:00
Nicolas Berthier
8497bafa2e Minor but correction in sigali output.
- Translation to z3z now evaluates constant expressions instead of
  abstracting them. This non-feature could cause "false" synthesis
  failures due to non-translatable yet constant expressions possibly
  introduced by tomato (or manually), for instance `not false' in node
  `n' bellow:

    node n (a: bool) returns (ok: bool)
      contract assume true enforce ok with ()
    let
      ok = a or not false;
    tel
2013-04-11 17:30:30 +02:00
Nicolas Berthier
9db97de879 Bug correction in `Sigalimain.translate_eq'.
- In Sigalimain: untranslatable non-boolean expressions should not be
  added as inputs of the controller.

- Avoided some compiler warnings in the same module (with OCaml ≥ 4).
2013-03-12 16:53:52 +01:00
Gwenaël Delaval
f60b00e9e3 Bug correction in Inline_extvalues
Added handling of controllable variables in Inline_extvalues
2013-02-08 14:42:26 +01:00
Gwenal Delaval
2be4e287b9 Take into account the -nosink option in Sigali
Corrected bug: do not suppress the last state
variable when -nosink is on.
2013-01-28 15:54:27 +01:00
Gwenaël Delaval
5a9b27d6a9 Correct handling of local assume/enforce of contracts 2012-12-11 08:20:04 +01:00
Gwenal Delaval
ce2e2bdcd0 Added -nbvars option for performance evaluation 2012-11-26 10:05:20 +01:00
Gwenaël Delaval
ef536f412d Added option -nosink (CS optimisation)
The -nosink option suppress the sink state of sigali equations.

This optimizes the controller synthesis, but work only
when the synthesis objective instantaneoulsy depends only
on the current state (and not on current inputs).
2012-11-23 12:23:17 +01:00
Gwenaël Delaval
5bdd891105 Handling of controllables in tomato
Added controllable variables as "inputs" in the
tomato pass.
2012-11-22 18:52:21 +01:00
Gwenaël Delaval
e42ff23a4b Corrected abstraction for z3z target 2012-11-22 18:37:32 +01:00
Gwenal Delaval
74a760ee0a Handling of controllables in Normalize_mem 2012-11-17 23:01:49 +01:00
Léonard Gérard
b0e2e41299 Schedule: do only count optimized variables in costs. 2012-10-17 12:02:00 +02:00
Cédric Pasteur
36bfa81b17 Fix for memalloc
Take the simplified versions of types (i.e. 
with constants instantiated) to check the 
equality of types
2012-09-14 16:08:26 +02:00
Gwenal Delaval
9334b73ef1 Naive abstraction for sigali 2012-08-08 18:16:33 +02:00
Gwenal Delaval
41fccc66fb Bugs corrections
- callgraph: add idents used for instantiated nodes
- cgen : added Idents.enter_node
- cmain : removed error when simulated node does not exist (existence
of simulated node was tested for every program, comprising loaded ones)
2012-08-01 17:08:58 +02:00
Gwenaël Delaval
72b1bd8de3 Typo in error message 2012-07-26 01:33:32 +02:00
Gwenaël Delaval
90dda27a3a Bug correction in Schedule_interf
Bug due to the fact that a variable can be "defined" and "read"
(in scheduling sense) by the same equation, without being a memory:
e.g., a clock defined as the result of a node application, together
with another result on this same clock.

Bug correction: basically removed the "assert false" on killed_vars,
decr_uses; do not count as "use" the self reads.
2012-07-26 01:29:22 +02:00
Gwenaël Delaval
e103d60c26 Removed eprintf in schedule_interf
eprintf -> Interference.print_debug
2012-07-14 14:31:46 +02:00
Gwenaël Delaval
ef00823cf7 Added Marc as co-author 2012-06-29 01:43:15 +02:00
Gwenaël Delaval
c080ad6cf3 Controller call only when controllables
Avoid built of dummy empty controllers
2012-06-29 01:41:13 +02:00
Gwenaël Delaval
58086190eb Headers and license file for GPL
Headers for every source file (excluding examples), mentioning
authors, copyright and license (GPL)

COPYING file with GPLv3 content.
2012-06-27 18:14:29 +02:00
Cédric Pasteur
5e1dad630b Force fby to be scheduled at the end 2012-06-20 17:09:30 +02:00
Cédric Pasteur
7a10ba028a Fixed disjoint clock computation 2012-06-20 17:09:17 +02:00
Cédric Pasteur
ffeb81f529 Use idents instead of ivars in scheduling 2012-06-20 16:33:06 +02:00
Cédric Pasteur
8815a2cd03 Better handling of clocks in memalloc
- We can do a better allocation if we take into
account 'when' in extvalues 
(test/good/memalloc_clocks.ept shows the
improvement)
- Fixed a bug with memalloc on records: if we 
translate:
o = { a with .f = u }
to
o = a; o.f = u
then we cannot share u and o.f
2012-06-20 09:17:13 +02:00
Cédric Pasteur
ed2c08315b Should be affinity, not copy 2012-06-19 09:33:27 +02:00
Gwenal Delaval
cf22ba3989 Optional block in contracts
Optional let...tel block in contracts
Sink state in sigali
2012-06-07 17:48:31 +02:00
Gwenal Delaval
2bd31db883 Causality and scheduling with contracts
Correction of the causality analysis and scheduling (with interference)
to take contracts into account.
2012-06-07 15:27:07 +02:00
Gwenal Delaval
2956002f85 Correction and simplification of the sigali pass
Added a "Contracts" pass, after inlining, taking care of the
contracts of the nodes called in the body of a node. This pass
"inlines" the code and assume/guarantee parts of these subcontracts.

The "Sigali" pass both generates the sigali ("z3z") code and add the call to
the controller (which is a node generated further by the sigali tool).
Therefore this pass has been included into the mls compiler, and removed
from the targets (a "z3z" dummy target has been kept for backward compatibility
reasons).
2012-06-06 15:59:08 +02:00
Gwenal Delaval
bb0bc8bfe5 Added local assume/guarantee
Added local assume/guarantee in contracts.

No syntax associated to these local asume/guarantee: internal use only.
2012-05-29 14:14:46 +02:00
Adrien Guatto
8153bc4eb5 Fixed Tomato: did not reconstruct internal clocks of extvalues 2012-03-30 14:47:47 +02:00
Léonard Gérard
61e14546df Interf scheduling tries harder with arrays 2012-03-19 17:45:06 +01:00
Adrien Guatto
44d3a639e5 Internal error for unknown clocks. 2012-03-02 17:12:30 +01:00
Adrien Guatto
699b3c68e9 Tomato: bug fix, node inputs were not properly considered different. 2012-03-01 14:46:33 +01:00
Léonard Gérard
8a78bc7d7d Add [external] in the signatures. fix callgraph acordingly. 2012-02-21 16:07:29 +01:00
Adrien Guatto
5ac3a7f028 Redisable interference of scalars during scheduling 2012-02-10 11:33:09 +01:00
Cédric Pasteur
6e2e2a9f47 Fixed bug in interference computation
To know the variables read by an equation, we should
only look at the clock of variables. Otherwise, 
there could be a problem for node calls that 
define new clocks.
2012-02-09 11:48:36 +01:00
Cédric Pasteur
7866321089 Fixed bug in interference 2012-02-09 11:06:28 +01:00
Adrien Guatto
3aeb499cc2 Re-enable interference for enums 2012-02-08 11:13:02 +01:00
Cédric Pasteur
f66c9045df Special case for merge in the scheduling
For merge equations, the generated code will be 
on a different rate than the activation clock of
the equation.
2012-02-01 11:19:25 +01:00
Adrien Guatto
1cb4b1154b Memory allocation: do not share enums (and thus clocks). 2012-01-30 17:48:47 +01:00
Adrien Guatto
946a1f8228 Inline extvalues: do not inline array literals. 2012-01-30 16:37:42 +01:00