diff options
Diffstat (limited to 'cfrontend')
-rw-r--r-- | cfrontend/Cexec.v | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/cfrontend/Cexec.v b/cfrontend/Cexec.v index 4dcf2a47..a9ffcd3d 100644 --- a/cfrontend/Cexec.v +++ b/cfrontend/Cexec.v @@ -130,8 +130,8 @@ Definition val_of_eventval (ev: eventval) (t: typ) : option val := Ltac mydestr := match goal with - | [ |- None = Some _ -> _ ] => intro X; discriminate - | [ |- Some _ = Some _ -> _ ] => intro X; inv X + | [ |- None = Some _ -> _ ] => let X := fresh "X" in intro X; discriminate + | [ |- Some _ = Some _ -> _ ] => let X := fresh "X" in intro X; inv X | [ |- match ?x with Some _ => _ | None => _ end = Some _ -> _ ] => destruct x eqn:?; mydestr | [ |- match ?x with true => _ | false => _ end = Some _ -> _ ] => destruct x eqn:?; mydestr | [ |- match ?x with left _ => _ | right _ => _ end = Some _ -> _ ] => destruct x; mydestr @@ -2038,12 +2038,14 @@ Definition do_step (w: world) (s: state) : list transition := Ltac myinv := match goal with - | [ |- In _ nil -> _ ] => intro X; elim X + | [ |- In _ nil -> _ ] => let X := fresh "X" in intro X; elim X | [ |- In _ (ret _ _) -> _ ] => + let X := fresh "X" in intro X; elim X; clear X; - [intro EQ; unfold ret in EQ; inv EQ; myinv | myinv] + [let EQ := fresh "EQ" in intro EQ; unfold ret in EQ; inv EQ; myinv | myinv] | [ |- In _ (_ :: nil) -> _ ] => - intro X; elim X; clear X; [intro EQ; inv EQ; myinv | myinv] + let X := fresh "X" in + intro X; elim X; clear X; [let EQ := fresh "EQ" in intro EQ; inv EQ; myinv | myinv] | [ |- In _ (match ?x with Some _ => _ | None => _ end) -> _ ] => destruct x eqn:?; myinv | [ |- In _ (match ?x with false => _ | true => _ end) -> _ ] => destruct x eqn:?; myinv | [ |- In _ (match ?x with left _ => _ | right _ => _ end) -> _ ] => destruct x; myinv |