From 164c6861860e6b52818c031f901ffeff91fca16a Mon Sep 17 00:00:00 2001
From: Enrico Tassi <gareuselesinge@debian.org>
Date: Tue, 26 Jan 2016 16:56:33 +0100
Subject: Imported Upstream version 8.5

---
 test-suite/success/Case22.v | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

(limited to 'test-suite/success/Case22.v')

diff --git a/test-suite/success/Case22.v b/test-suite/success/Case22.v
index ce9050d4..3c696502 100644
--- a/test-suite/success/Case22.v
+++ b/test-suite/success/Case22.v
@@ -17,3 +17,47 @@ Definition foo (x : I') : bool :=
   match x with
   C' => true
   end.
+
+(* Bug found in november 2015: was wrongly failing in 8.5beta2 and 8.5beta3 *)
+
+Inductive I2 (A:Type) : let B:=A in forall C, let D:=(C*B)%type in Type :=
+  E2 : I2 A nat.
+
+Check fun x:I2 nat nat => match x in I2 _ X Y Z return X*Y*Z with
+  E2 _ => (0,0,(0,0))
+  end.
+
+(* This used to succeed in 8.3, 8.4 and 8.5beta1 *)
+
+Inductive IND : forall X:Type, let Y:=X in Type :=
+  CONSTR : IND True.
+
+Definition F (x:IND True) (A:Type) :=
+  (* This failed in 8.5beta2 though it should have been accepted *)
+  match x in IND X Y return Y with
+  CONSTR => Logic.I
+  end.
+
+Theorem paradox : False.
+  (* This succeeded in 8.3, 8.4 and 8.5beta1 because F had wrong type *)
+Fail Proof (F C False).
+
+(* Another bug found in November 2015 (a substitution was wrongly
+   reversed at pretyping level) *)
+
+Inductive Ind (A:Type) :
+  let X:=A in forall Y:Type, let Z:=(X*Y)%type in Type :=
+  Constr : Ind A nat.
+
+Check fun x:Ind bool nat =>
+  match x in Ind _ X Y Z return Z with
+  | Constr _ => (true,0)
+  end.
+
+(* A vm_compute bug (the type of constructors was not supposed to
+   contain local definitions before proper parameters) *)
+
+Inductive Ind2 (b:=1) (c:nat) : Type :=
+  Constr2 : Ind2 c.
+
+Eval vm_compute in Constr2 2.
-- 
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