From e43b1768d0f8399f426b92f4dfe31955daceb1a4 Mon Sep 17 00:00:00 2001 From: Maxime Dénès Date: Fri, 16 Feb 2018 01:02:17 +0100 Subject: Primitive integers 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 Co-authored-by: Benjamin Grégoire Co-authored-by: Vincent Laporte --- kernel/declarations.ml | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'kernel/declarations.ml') diff --git a/kernel/declarations.ml b/kernel/declarations.ml index 016b63be09..1008492825 100644 --- a/kernel/declarations.ml +++ b/kernel/declarations.ml @@ -47,10 +47,11 @@ type inline = int option transparent body, or an opaque one *) (* Global declarations (i.e. constants) can be either: *) -type constant_def = +type 'a constant_def = | Undef of inline (** a global assumption *) - | Def of constr Mod_subst.substituted (** or a transparent global definition *) + | Def of 'a (** or a transparent global definition *) | OpaqueDef of Opaqueproof.opaque (** or an opaque global definition *) + | Primitive of CPrimitives.t (** or a primitive operation *) type constant_universes = | Monomorphic_const of Univ.ContextSet.t @@ -88,7 +89,7 @@ type typing_flags = { * the OpaqueDef *) type constant_body = { const_hyps : Constr.named_context; (** New: younger hyp at top *) - const_body : constant_def; + const_body : Constr.t Mod_subst.substituted constant_def; const_type : types; const_body_code : Cemitcodes.to_patch_substituted option; const_universes : constant_universes; -- cgit v1.2.3