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authorMatthieu Sozeau2016-07-25 17:08:48 +0200
committerMatthieu Sozeau2016-07-25 17:08:48 +0200
commit55dd78e3b40efc1b8000a1107daddc68d94814e5 (patch)
tree6e34d228e3cb76533f5bafabd1955f05edbe171f /test-suite
parent3f08b7e490a9a9b6091f097d1440d3ba042a47c1 (diff)
parentb9485da2388e0fe2d634d3359c0504b8c253e554 (diff)
Merge remote-tracking branch 'github/bug4679' into v8.6
Diffstat (limited to 'test-suite')
-rw-r--r--test-suite/bugs/closed/4679.v18
1 files changed, 18 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/4679.v b/test-suite/bugs/closed/4679.v
new file mode 100644
index 0000000000..c94fa31a9d
--- /dev/null
+++ b/test-suite/bugs/closed/4679.v
@@ -0,0 +1,18 @@
+Require Import Coq.Setoids.Setoid.
+Goal forall (T : nat -> Set -> Set) (U : Set)
+ (H : forall n : nat, T n (match n with
+ | 0 => fun x => x
+ | S _ => fun x => x
+ end (nat = nat)) = U),
+ T 0 (nat = nat) = U.
+Proof.
+ intros.
+ let H := match goal with H : forall _, eq _ _ |- _ => H end in
+ rewrite H || fail 0 "too early".
+ Undo.
+ let H := match goal with H : forall _, eq _ _ |- _ => H end in
+ setoid_rewrite (H 0) || fail 0 "too early".
+ Undo.
+ setoid_rewrite H. (* Error: Tactic failure: setoid rewrite failed: Nothing to rewrite. *)
+ reflexivity.
+Qed. \ No newline at end of file