X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=isl_pw_templ.c;h=da4b53e5ec2a13445b4b7bb170a66f18ca7775e9;hb=78b3cfae0a9cad8fbca88a9b5ce79337c2ba01c3;hp=0555091ac2c6422820ded59fcd99b20c94466a3f;hpb=661c3743a58bd69d5c7e5d62a716c0f2cd857e65;p=platform%2Fupstream%2Fisl.git

diff --git a/isl_pw_templ.c b/isl_pw_templ.c
index 0555091..da4b53e 100644
--- a/isl_pw_templ.c
+++ b/isl_pw_templ.c
@@ -918,3 +918,42 @@ error:
 	FN(PW,free)(pw);
 	return NULL;
 }
+
+__isl_give PW *FN(PW,mul_isl_int)(__isl_take PW *pw, isl_int v)
+{
+	int i;
+
+	if (isl_int_is_one(v))
+		return pw;
+	if (pw && isl_int_is_zero(v)) {
+		PW *zero;
+		isl_dim *dim = FN(PW,get_dim)(pw);
+#ifdef HAS_TYPE
+		zero = FN(PW,zero)(dim, pw->type);
+#else
+		zero = FN(PW,zero)(dim);
+#endif
+		FN(PW,free)(pw);
+		return zero;
+	}
+	pw = FN(PW,cow)(pw);
+	if (!pw)
+		return NULL;
+	if (pw->n == 0)
+		return pw;
+
+#ifdef HAS_TYPE
+	if (isl_int_is_neg(v))
+		pw->type = isl_fold_type_negate(pw->type);
+#endif
+	for (i = 0; i < pw->n; ++i) {
+		pw->p[i].FIELD = FN(EL,mul_isl_int)(pw->p[i].FIELD, v);
+		if (!pw->p[i].FIELD)
+			goto error;
+	}
+
+	return pw;
+error:
+	FN(PW,free)(pw);
+	return NULL;
+}