Section CONSTRUCTORS.
Variable ge: genv.
Variable fn: function.
(** Properties of comparisons. *)
(** Loading a constant. *)
(** Add integer immediate. *)
(** And integer immediate. *)
(** Or integer immediate. *)
(** Xor integer immediate. *)
(** Rotate and mask. *)
(** Load int64 constant. *)
(** Alternate load int64 immediate *)
(** Add int64 immediate. *)
(** Or int64 immediate. *)
(** Xor int64 immediate. *)
(** And int64 immediate. *)
(** Rotate-and-mask for int64 *)
(** Indexed memory loads. *)
(** Indexed memory stores. *)
(** Float comparisons. *)
(** Translation of conditions. *)
Ltac ArgsInv :=
repeat (match goal with
| [ H: Error _ = OK _ |- _ ] => discriminate
| [ H: match ?args with nil => _ | _ :: _ => _ end = OK _ |- _ ] => destruct args
| [ H: bind _ _ = OK _ |- _ ] => monadInv H
| [ H: match _ with left _ => _ | right _ => assertion_failed end = OK _ |- _ ] => monadInv H; ArgsInv
| [ H: match _ with true => _ | false => assertion_failed end = OK _ |- _ ] => monadInv H; ArgsInv
end);
subst;
repeat (match goal with
| [ H: ireg_of _ = OK _ |- _ ] => simpl in *; rewrite (ireg_of_eq _ _ H) in *
| [ H: freg_of _ = OK _ |- _ ] => simpl in *; rewrite (freg_of_eq _ _ H) in *
end).

Lemma transl_cond_correct_2:
forall cond args k rs m b c,
transl_cond cond args k = OK c ->
eval_condition cond (map rs (map preg_of args)) m = Some b ->
exists rs',
exec_straight ge fn c rs m k rs' m
/\ rs'#(reg_of_crbit (fst (crbit_for_cond cond))) =
(if snd (crbit_for_cond cond)
then Val.of_bool b
else Val.notbool (Val.of_bool b))
/\ forall r, important_preg r = true -> rs'#r = rs#r.