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-rw-r--r--test-suite/success/ltac.v13
1 files changed, 13 insertions, 0 deletions
diff --git a/test-suite/success/ltac.v b/test-suite/success/ltac.v
index e93be7763e..880f92fdd9 100644
--- a/test-suite/success/ltac.v
+++ b/test-suite/success/ltac.v
@@ -42,3 +42,16 @@ Z. (* Apply H0 *)
Y. (* Apply H *)
Exact I.
Qed.
+
+(* Check backtracking *)
+Lemma back1 : (0)=(1)->(0)=(0)->(1)=(1)->(0)=(0).
+Intros; Match Context With [_:(O)=?1;_:(1)=(1)|-? ] -> Exact (refl_equal ? ?1).
+Qed.
+
+Lemma back2 : (0)=(0)->(0)=(1)->(1)=(1)->(0)=(0).
+Intros; Match Context With [_:(O)=?1;_:(1)=(1)|-? ] -> Exact (refl_equal ? ?1).
+Qed.
+
+Lemma back3 : (0)=(0)->(1)=(1)->(0)=(1)->(0)=(0).
+Intros; Match Context With [_:(O)=?1;_:(1)=(1)|-? ] -> Exact (refl_equal ? ?1).
+Qed.