From 4c3064c6e679cfbe4ce13a76b50a17bcfffe4d71 Mon Sep 17 00:00:00 2001
From: Hugo Herbelin
Date: Sun, 30 Aug 2020 21:44:36 +0200
Subject: Fixes a freshness issue with induction (see comment in #12944).

The names computed in consume_pattern were lost when calling
intros_pattern_core. Moreover, the computation of names to avoid was
done several time. We compute it once for all.
---
 test-suite/success/induct.v | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'test-suite')

diff --git a/test-suite/success/induct.v b/test-suite/success/induct.v
index 73fe53c757..a39b17e1f1 100644
--- a/test-suite/success/induct.v
+++ b/test-suite/success/induct.v
@@ -196,3 +196,13 @@ Goal forall m n:nat, n=m.
 double induction m n.
 Abort.
 
+(* Mentioned as part of bug #12944 *)
+
+Inductive test : Set := cons : forall (IHv : nat) (v : test), test.
+
+Goal test -> test.
+induction 1 as [? IHv].
+Undo.
+destruct 1 as [? IHv].
+exact IHv. (* Check that the name is granted *)
+Qed.
-- 
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