From 276ad0f2f2db5e4ddc569da606a6db8873fdec00 Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Wed, 14 Oct 2020 17:20:41 +0200
Subject: Fix algebraic on the right when using bidi hints

Fix #12970

We can't recover the expected type of the post bidi argument by
retyping because the hole may be filled by something in which case
retyping can produce algebraic universes.
---
 test-suite/bugs/closed/bug_12970.v | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 test-suite/bugs/closed/bug_12970.v

(limited to 'test-suite')

diff --git a/test-suite/bugs/closed/bug_12970.v b/test-suite/bugs/closed/bug_12970.v
new file mode 100644
index 0000000000..69ce7ec2c2
--- /dev/null
+++ b/test-suite/bugs/closed/bug_12970.v
@@ -0,0 +1,4 @@
+Arguments existT _ & _ _.
+
+Definition f := fun X (A : X -> Type) (P : forall x, A x -> Type) x y =>
+        existT (fun f => forall x, P x (f x)) x y : sigT (fun f => forall x, P x (f x)).
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