diff options
| author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-10-09 14:35:38 +0200 |
|---|---|---|
| committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-10-09 14:35:38 +0200 |
| commit | 1cf17f44b8389754d99535df800186177b394f0c (patch) | |
| tree | 44b14ab0175bc140431320daaf0f7a098412af41 | |
| parent | 0372472c17ceac36765c8921548672503115bb04 (diff) | |
| download | compcert-kvx-1cf17f44b8389754d99535df800186177b394f0c.tar.gz compcert-kvx-1cf17f44b8389754d99535df800186177b394f0c.zip | |
centralize if_same
| -rw-r--r-- | backend/CSE3proof.v | 6 | ||||
| -rw-r--r-- | kvx/SelectOpproof.v | 6 | ||||
| -rw-r--r-- | lib/Coqlib.v | 6 |
3 files changed, 6 insertions, 12 deletions
diff --git a/backend/CSE3proof.v b/backend/CSE3proof.v index 6e489066..3fbc9912 100644 --- a/backend/CSE3proof.v +++ b/backend/CSE3proof.v @@ -443,12 +443,6 @@ Ltac IND_STEP := idtac mpc mpc' fn minstr *) end. -Lemma if_same : forall {T : Type} (b : bool) (x : T), - (if b then x else x) = x. -Proof. - destruct b; trivial. -Qed. - Lemma step_simulation: forall S1 t S2, RTL.step ge S1 t S2 -> forall S1', match_states S1 S1' -> diff --git a/kvx/SelectOpproof.v b/kvx/SelectOpproof.v index 0de9f51f..8c834de5 100644 --- a/kvx/SelectOpproof.v +++ b/kvx/SelectOpproof.v @@ -1533,12 +1533,6 @@ Proof. apply Val.swap_cmplu_bool. Qed. -Lemma if_same : forall {T : Type} (b : bool) (x : T), - (if b then x else x) = x. -Proof. - destruct b; trivial. -Qed. - Theorem eval_select: forall le ty cond al vl a1 v1 a2 v2 a b, select ty cond al a1 a2 = Some a -> diff --git a/lib/Coqlib.v b/lib/Coqlib.v index 02c5d07f..16d880fa 100644 --- a/lib/Coqlib.v +++ b/lib/Coqlib.v @@ -1325,3 +1325,9 @@ Lemma nlist_forall2_imply: Proof. induction 1; simpl; intros; constructor; auto. Qed. + +Lemma if_same : forall {T : Type} (b : bool) (x : T), + (if b then x else x) = x. +Proof. + destruct b; trivial. +Qed. |