From: Sven Verdoolaege <skimo@kotnet.org>
Date: Sat, 25 Aug 2012 10:34:40 +0000 (+0200)
Subject: add isl_pw_multi_aff_identity
X-Git-Tag: isl-0.11~196
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=72848d77654bea0bb571f15bfc62b0eb35fe059b;p=platform%2Fupstream%2Fisl.git

add isl_pw_multi_aff_identity

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

diff --git a/doc/user.pod b/doc/user.pod
index 62c196b..7eb13e4 100644
--- a/doc/user.pod
+++ b/doc/user.pod
@@ -3500,6 +3500,8 @@ can be created using the following functions.
 		__isl_take isl_space *space);
 	__isl_give isl_multi_aff *isl_multi_aff_identity(
 		__isl_take isl_space *space);
+	__isl_give isl_pw_multi_aff *isl_pw_multi_aff_identity(
+		__isl_take isl_space *space);
 	__isl_give isl_pw_multi_aff *
 	isl_pw_multi_aff_from_multi_aff(
 		__isl_take isl_multi_aff *ma);
diff --git a/include/isl/aff.h b/include/isl/aff.h
index 3711e81..2e0df89 100644
--- a/include/isl/aff.h
+++ b/include/isl/aff.h
@@ -311,6 +311,8 @@ __isl_give isl_multi_aff *isl_multi_aff_read_from_str(isl_ctx *ctx,
 		const char *str);
 void isl_multi_aff_dump(__isl_keep isl_multi_aff *maff);
 
+__isl_give isl_pw_multi_aff *isl_pw_multi_aff_identity(
+	__isl_take isl_space *space);
 __isl_give isl_pw_multi_aff *isl_pw_multi_aff_from_multi_aff(
 	__isl_take isl_multi_aff *ma);
 __isl_give isl_pw_multi_aff *isl_pw_multi_aff_alloc(__isl_take isl_set *set,
diff --git a/isl_aff.c b/isl_aff.c
index e47cad9..7c6b8fb 100644
--- a/isl_aff.c
+++ b/isl_aff.c
@@ -2245,6 +2245,15 @@ __isl_give isl_pw_multi_aff *isl_pw_multi_aff_from_multi_aff(
 	return isl_pw_multi_aff_alloc(dom, ma);
 }
 
+/* Create a piecewise multi-affine expression in the given space that maps each
+ * input dimension to the corresponding output dimension.
+ */
+__isl_give isl_pw_multi_aff *isl_pw_multi_aff_identity(
+	__isl_take isl_space *space)
+{
+	return isl_pw_multi_aff_from_multi_aff(isl_multi_aff_identity(space));
+}
+
 __isl_give isl_multi_aff *isl_multi_aff_add(__isl_take isl_multi_aff *maff1,
 	__isl_take isl_multi_aff *maff2)
 {