From: Sven Verdoolaege <skimo@kotnet.org>
Date: Wed, 30 May 2012 09:03:12 +0000 (+0200)
Subject: isl_space_insert_dims: fix handling of nested spaces
X-Git-Tag: isl-0.10~8^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e8234789a0408adb20371db034e810351cda2674;p=platform%2Fupstream%2Fisl.git

isl_space_insert_dims: fix handling of nested spaces

In particular, if we are inserting parameters, then we should also
insert them in any nested spaces.

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---

diff --git a/isl_space.c b/isl_space.c
index f4b1b2a..87fad1f 100644
--- a/isl_space.c
+++ b/isl_space.c
@@ -795,6 +795,10 @@ static int valid_dim_type(enum isl_dim_type type)
 	}
 }
 
+/* Insert "n" dimensions of type "type" at position "pos".
+ * If we are inserting parameters, then they are also inserted in
+ * any nested spaces.
+ */
 __isl_give isl_space *isl_space_insert_dims(__isl_take isl_space *dim,
 	enum isl_dim_type type, unsigned pos, unsigned n)
 {
@@ -852,6 +856,17 @@ __isl_give isl_space *isl_space_insert_dims(__isl_take isl_space *dim,
 	}
 	dim = isl_space_reset(dim, type);
 
+	if (type == isl_dim_param) {
+		if (dim && dim->nested[0] &&
+		    !(dim->nested[0] = isl_space_insert_dims(dim->nested[0],
+						    isl_dim_param, pos, n)))
+			goto error;
+		if (dim && dim->nested[1] &&
+		    !(dim->nested[1] = isl_space_insert_dims(dim->nested[1],
+						    isl_dim_param, pos, n)))
+			goto error;
+	}
+
 	return dim;
 error:
 	isl_space_free(dim);