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Fall back to checking equality of expressions in sim #997

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Fall back to checking equality of expressions in sim #997

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57307ff
reexport expr equality and use same dummy on both sides
oskgo May 28, 2026
c243ba0
fall back to checking equality of expressions in `sim`
oskgo May 7, 2026
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5 changes: 5 additions & 0 deletions src/ecPV.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -1127,6 +1127,11 @@ module Mpv2 = struct
when EcReduction.EqTest.for_type env ty1 ty2
&& EcReduction.EqTest.for_type env b1.e_ty b2.e_ty ->
List.fold_left2 (add_eqs_loc env local) eqs (b1::es1) (b2::es2)
| _, _ when EcReduction.EqTest.for_expr env e1 e2 ->
let fv1 = e_read env e1 in
let fv2 = e_read env e2 in
union eqs (eq_refl (PV.union fv1 fv2))

| _, _ -> raise EqObsInError

let add_eqs env e1 e2 eqs = add_eqs_loc env Mid.empty eqs e1 e2
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5 changes: 3 additions & 2 deletions src/ecReduction.ml
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Expand Up @@ -185,7 +185,7 @@ module EqMod_base(Fe : sig
val for_expr : env -> norm:bool -> (ident * ty) Mid.t -> expr -> expr -> bool
end) = struct
open EqTest_base
open Fe
include Fe

(* ------------------------------------------------------------------ *)
let rec for_stmt env alpha ~norm s1 s2 =
Expand Down Expand Up @@ -1866,8 +1866,9 @@ module EqTest = struct

include EqMod_base(struct
let for_expr env ~norm:_ alpha e1 e2 =
let dummy_mem = EcIdent.create "&dummy" in
let convert e =
let f = (ss_inv_of_expr (EcIdent.create "&dummy") e).inv in
let f = (ss_inv_of_expr dummy_mem e).inv in

if Mid.is_empty alpha then f else

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