From: Sven Verdoolaege <skimo@kotnet.org>
Date: Sat, 9 Jul 2011 09:55:23 +0000 (+0200)
Subject: add isl_pw_aff_floor
X-Git-Tag: isl-0.07~19
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=caca96b320274868d0cfed9d988c5cbb8506206d;p=platform%2Fupstream%2Fisl.git

add isl_pw_aff_floor

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

diff --git a/doc/user.pod b/doc/user.pod
index b3f226a..72662fd 100644
--- a/doc/user.pod
+++ b/doc/user.pod
@@ -2355,6 +2355,8 @@ Operations include
 		__isl_take isl_pw_aff *pwaff);
 	__isl_give isl_aff *isl_aff_ceil(__isl_take isl_aff *aff);
 	__isl_give isl_aff *isl_aff_floor(__isl_take isl_aff *aff);
+	__isl_give isl_pw_aff *isl_pw_aff_floor(
+		__isl_take isl_pw_aff *pwaff);
 	__isl_give isl_aff *isl_aff_scale(__isl_take isl_aff *aff,
 		isl_int f);
 	__isl_give isl_aff *isl_aff_scale_down(__isl_take isl_aff *aff,
diff --git a/include/isl/aff.h b/include/isl/aff.h
index 4c6e9f7..1f3cdbf 100644
--- a/include/isl/aff.h
+++ b/include/isl/aff.h
@@ -110,6 +110,7 @@ __isl_give isl_set *isl_pw_aff_domain(__isl_take isl_pw_aff *pwaff);
 __isl_give isl_pw_aff *isl_pw_aff_add(__isl_take isl_pw_aff *pwaff1,
 	__isl_take isl_pw_aff *pwaff2);
 __isl_give isl_pw_aff *isl_pw_aff_neg(__isl_take isl_pw_aff *pwaff);
+__isl_give isl_pw_aff *isl_pw_aff_floor(__isl_take isl_pw_aff *pwaff);
 
 __isl_give isl_pw_aff *isl_pw_aff_scale_down(__isl_take isl_pw_aff *pwaff,
 	isl_int f);
diff --git a/isl_aff.c b/isl_aff.c
index ffca874..9acf52c 100644
--- a/isl_aff.c
+++ b/isl_aff.c
@@ -1232,3 +1232,22 @@ __isl_give isl_pw_aff *isl_pw_aff_scale_down(__isl_take isl_pw_aff *pwaff,
 
 	return pwaff;
 }
+
+__isl_give isl_pw_aff *isl_pw_aff_floor(__isl_take isl_pw_aff *pwaff)
+{
+	int i;
+
+	pwaff = isl_pw_aff_cow(pwaff);
+	if (!pwaff)
+		return NULL;
+	if (pwaff->n == 0)
+		return pwaff;
+
+	for (i = 0; i < pwaff->n; ++i) {
+		pwaff->p[i].aff = isl_aff_floor(pwaff->p[i].aff);
+		if (!pwaff->p[i].aff)
+			return isl_pw_aff_free(pwaff);
+	}
+
+	return pwaff;
+}