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Require Import Coqlib Floats Values Memory.
Require Import Integers.
Require Import Op Registers.
Require Import BTL_SEtheory.
Require Import BTL_SEsimuref.
(** Target op simplifications using "fake" values *)
Definition target_op_simplify (op: operation) (lr: list reg) (hrs: ristate): option sval :=
None.
Definition target_cbranch_expanse (prev: ristate) (cond: condition) (args: list reg) : option (condition * list_sval) :=
None.
(* Main proof of simplification *)
(*
Lemma target_op_simplify_correct ge sp ctx op lr hrs fsv st args m: forall
(H: target_op_simplify op lr hrs = Some fsv)
(REF: ris_refines ctx hrs st)
(OK0: ris_ok ctx hrs)
(OK1: eval_list_sval ctx (list_sval_inj (map (si_sreg st) lr)) = Some args)
(OK2: eval_smem ctx (si_smem st) = Some m),
eval_sval ctx fsv = eval_operation ge sp op args m.
Proof.
unfold target_op_simplify; simpl.
intros H (LREF & SREF & SREG & SMEM) ? ? ?.
congruence.
Qed.
Lemma target_cbranch_expanse_correct hst c l ge sp rs0 m0 st c' l': forall
(TARGET: target_cbranch_expanse hst c l = Some (c', l'))
(LREF : hsilocal_refines ge sp rs0 m0 hst st)
(OK: hsok_local ge sp rs0 m0 hst),
seval_condition ge sp c' (hsval_list_proj l') (si_smem st) rs0 m0 =
seval_condition ge sp c (list_sval_inj (map (si_sreg st) l)) (si_smem st) rs0 m0.
Proof.
unfold target_cbranch_expanse, seval_condition; simpl.
intros H (LREF & SREF & SREG & SMEM) ?.
congruence.
Qed.
Global Opaque target_op_simplify.
Global Opaque target_cbranch_expanse.*)
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