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+(************************************************************************)
+(*         *   The Coq Proof Assistant / The Coq Development Team       *)
+(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
+(* <O___,, *       (see CREDITS file for the list of authors)           *)
+(*   \VV/  **************************************************************)
+(*    //   *    This file is distributed under the terms of the         *)
+(*         *     GNU Lesser General Public License Version 2.1          *)
+(*         *     (see LICENSE file for the text of the license)         *)
+(************************************************************************)
+
+(* (c) Copyright 2006-2016 Microsoft Corporation and Inria.                  *)
+
+Require Import ssreflect.
+Require Import ssrbool TestSuite.ssr_mini_mathcomp.
+
+Ltac SUFF1 h t := suff h x (p := x < 0) : t.
+Ltac SUFF2 h t := suff h x (p := x < 0) : t by apply h.
+Ltac HAVE1 h t u := have h x (p := x < 0) : t := u.
+Ltac HAVE2 h t := have h x (p := x < 0) : t by [].
+Ltac HAVE3 h t := have h x (p := x < 0) : t.
+Ltac HAVES h t := have suff h : t.
+Ltac SUFFH h t := suff have h : t.
+
+Lemma foo z : z < 0.
+SUFF1 h1 (z+1 < 0).
+Undo.
+SUFF2 h2 (z < 0).
+Undo.
+HAVE1 h3 (z = z) (refl_equal z).
+Undo.
+HAVE2 h4 (z = z).
+Undo.
+HAVE3 h5 (z < 0).
+Undo.
+HAVES h6 (z < 1).
+Undo.
+SUFFH h7 (z < 1).
+Undo.
+Admitted.