Imported Upstream version 8.6upstream/8.6

1 files changed, 24 insertions, 0 deletions

diff --git a/test-suite/bugs/closed/4762.v b/test-suite/bugs/closed/4762.v
new file mode 100644
index 00000000..7a87b07a
--- /dev/null
+++ b/test-suite/bugs/closed/4762.v
@@ -0,0 +1,24 @@
+Inductive myand (P Q : Prop) := myconj : P -> Q -> myand P Q.
+
+Lemma foo P Q R : R = myand P Q -> P -> Q -> R.
+Proof. intros ->; constructor; auto. Qed.
+
+Hint Extern 0 (myand _ _) => eapply foo; [reflexivity| |] : test1.
+
+Goal forall P Q R : Prop, P -> Q -> R -> myand P (myand Q R).
+Proof.
+  intros.
+  eauto with test1.
+Qed.
+
+Hint Extern 0 =>
+  match goal with
+  | |- myand _ _ => eapply foo; [reflexivity| |]
+  end : test2.
+
+Goal forall P Q R : Prop, P -> Q -> R -> myand P (myand Q R).
+Proof.
+  intros.
+  eauto with test2. (* works *)
+Qed.
+