| Age | Commit message (Collapse) | Author |
|---|
|
This does not make the code any slower, since
Is_coq_array(accu) && Is_uint63(sp[0])
and
!Is_accu(accu) && !Is_accu(sp[0])
take the exact same number of tests to pass in the concrete case.
In the accumulator case, it takes one more test to fail, but we do not
care about the performances then.
|
|
The first field of accumulators points out of the OCaml heap, so using
closures instead of tag-0 objects is better for the GC.
Accumulators are distinguished from closures because their code pointer
necessarily is the "accumulate" address, which points to an ACCUMULATE
instruction.
|
|
That way, accumulators again can be used directly as execution
environments by the bytecode interpreter. This fixes the issue of the
first argument of accumulators being dropped when strongly normalizing.
|
|
No need to store the case_info, all the data is reconstructible from the
context. Furthermore, this reconstruction is performed in a context where
we already access the environment, so performance is not at stake.
Hopefully this will also reduce the number of globally allocated VM values,
since the switch representation now only depends on the shape of the inductive
type.
|
|
Persistent arrays expose a functional interface but are implemented
using an imperative data structure. The OCaml implementation is based on
Jean-Christophe Filliâtre's.
Co-authored-by: Benjamin Grégoire <Benjamin.Gregoire@inria.fr>
Co-authored-by: Gaëtan Gilbert <gaetan.gilbert@skyskimmer.net>
|
|
|
|
Replace `option comparison` with `float_comparison` (:= `FEq | FLt |
FGt | FNotComparable`) as suggested by Guillaume Melquiond to avoid
boxing and an extra match when using primitive float comparison.
|
|
Axioms on ldexp and frexp are replaced by proofs inside FloatLemmas.
The shift value has been increased to 2 * emax + prec because in ldexp
we want to be able to transform the smallest denormalized to the biggest
float value in one call.
|
|
* This commit add float instructions to the VM, their encoding in bytecode
and the interpretation of primitive float values after the reduction.
* The flag '-std=c99' could be added to the C compiler flags to ensure
that float computation strictly follows the norm (ie. i387 80-bits
format is not used as an optimization).
Actually, we use '-fexcess-precision=standard' instead of '-std=c99'
because the latter would disable GNU asm used in the VM.
|
|
This work makes it possible to take advantage of a compact
representation for integers in the entire system, as opposed to only
in some reduction machines. It is useful for heavily computational
applications, where even constructing terms is not possible without such
a representation.
Concretely, it replaces part of the retroknowledge machinery with
a primitive construction for integers in terms, and introduces a kind of
FFI which maps constants to operators (on integers). Properties of these
operators are expressed as explicit axioms, whereas they were hidden in
the retroknowledge-based approach.
This has been presented at the Coq workshop and some Coq Working Groups,
and has been used by various groups for STM trace checking,
computational analysis, etc.
Contributions by Guillaume Bertholon and Pierre Roux <Pierre.Roux@onera.fr>
Co-authored-by: Benjamin Grégoire <Benjamin.Gregoire@inria.fr>
Co-authored-by: Vincent Laporte <Vincent.Laporte@fondation-inria.fr>
|
|
polymorphic definitions.
- This implementation passes universes in separate arguments and does not
eagerly instanitate polymorphic definitions.
- This means that it pays no cost on monomorphic definitions.
|
|
Rename some functions, remove dead code related to (previously deprecated, now
removed) option Set Boxed Values.
|
|
I'm pushing this patch now because the previous treatment of such projections
in the VM was already unsound. It should however be carefully reviewed.
|
|
...with proper options for dynamic loading of C stubs. I believe this
is the preferred way of compiling C stubs. It also adds by itself
-fno-defer-pop, -Wall, -I `ocamlc -where`, so CFLAGS could also be
simplified.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11358 85f007b7-540e-0410-9357-904b9bb8a0f7
|
|
- essai de suppression des dependances debiles. (echec)
- Application des patch debian.
Pour ring et field :
- introduciton de la function de sign et de puissance.
- Correction de certains bug.
- supression de ring_replace ....
Pour exact_no_check :
- ajout de la tactic : vm_cast_no_check (t)
qui remplace "exact_no_check (t<: type of Goal)"
(cette version forcais l'evaluation du cast dans le
pretypage).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9427 85f007b7-540e-0410-9357-904b9bb8a0f7
|
|
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9299 85f007b7-540e-0410-9357-904b9bb8a0f7
|
|
Part contre ces cas sont detruis dans les "Definition"
(pas dans les "Lemma") je comprends pas ou ils sont enlev'e...
Si une id'ee ...
- Correction d'un bug dans vm_compute plusieurs fois signal'e par Roland.
- Meilleur compilation des coinductifs, on utilise maintenant vraimment
du lazy.
- Enfin un peu plus de doc dans le code de la vm.
Benjamin
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9058 85f007b7-540e-0410-9357-904b9bb8a0f7
|
|
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@6245 85f007b7-540e-0410-9357-904b9bb8a0f7
|
