X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=isl_pw_templ.c;h=b65dfcbb1ae88ad1df88b1a7c6eb1d5c817defd5;hb=ac5c06bda5e0b97ccc1d0a6befded7f4a0180c06;hp=ef6dc0c875767e33bde869007ce0104750669227;hpb=56deca7509f79c4f951b68cff90241433bd960ee;p=platform%2Fupstream%2Fisl.git

diff --git a/isl_pw_templ.c b/isl_pw_templ.c
index ef6dc0c..b65dfcb 100644
--- a/isl_pw_templ.c
+++ b/isl_pw_templ.c
@@ -95,6 +95,17 @@ error:
 	return NULL;
 }
 
+__isl_give PW *FN(PW,cow)(__isl_take PW *pw)
+{
+	if (!pw)
+		return NULL;
+
+	if (pw->ref == 1)
+		return pw;
+	pw->ref--;
+	return FN(PW,dup)(pw);
+}
+
 __isl_give PW *FN(PW,copy)(__isl_keep PW *pw)
 {
 	if (!pw)
@@ -167,8 +178,8 @@ __isl_give PW *FN(PW,add)(__isl_take PW *pw1, __isl_take PW *pw2)
 				continue;
 			}
 
-			sum = FN(EL,ADD)(FN(EL,copy)(pw1->p[i].FIELD),
-					 FN(EL,copy)(pw2->p[j].FIELD));
+			sum = ADD(common, FN(EL,copy)(pw1->p[i].FIELD),
+					  FN(EL,copy)(pw2->p[j].FIELD));
 
 			res = FN(PW,add_piece)(res, common, sum);
 		}
@@ -283,3 +294,186 @@ __isl_give isl_set *FN(PW,domain)(__isl_take PW *pw)
 
 	return dom;
 }
+
+__isl_give PW *FN(PW,intersect_domain)(__isl_take PW *pw, __isl_take isl_set *set)
+{
+	int i;
+
+	if (!pw || !set)
+		goto error;
+
+	if (pw->n == 0) {
+		isl_set_free(set);
+		return pw;
+	}
+
+	pw = FN(PW,cow)(pw);
+	if (!pw)
+		goto error;
+
+	for (i = 0; i < pw->n; ++i) {
+		pw->p[i].set = isl_set_intersect(pw->p[i].set, isl_set_copy(set));
+		if (!pw->p[i].set)
+			goto error;
+	}
+	
+	isl_set_free(set);
+	return pw;
+error:
+	isl_set_free(set);
+	FN(PW,free)(pw);
+	return NULL;
+}
+
+__isl_give PW *FN(PW,gist)(__isl_take PW *pw, __isl_take isl_set *context)
+{
+	int i;
+	isl_basic_set *hull = NULL;
+
+	if (!pw || !context)
+		goto error;
+
+	if (pw->n == 0) {
+		isl_set_free(context);
+		return pw;
+	}
+
+	hull = isl_set_convex_hull(isl_set_copy(context));
+
+	pw = FN(PW,cow)(pw);
+	if (!pw)
+		goto error;
+
+	for (i = 0; i < pw->n; ++i) {
+		pw->p[i].set = isl_set_gist(pw->p[i].set,
+						isl_basic_set_copy(hull));
+		if (!pw->p[i].set)
+			goto error;
+	}
+
+	isl_basic_set_free(hull);
+	isl_set_free(context);
+
+	return pw;
+error:
+	FN(PW,free)(pw);
+	isl_basic_set_free(hull);
+	isl_set_free(context);
+	return NULL;
+}
+
+__isl_give PW *FN(PW,coalesce)(__isl_take PW *pw)
+{
+	int i, j;
+
+	if (!pw)
+		return NULL;
+	if (pw->n == 0)
+		return pw;
+
+	for (i = pw->n - 1; i >= 0; --i) {
+		for (j = i - 1; j >= 0; --j) {
+			if (!FN(EL,is_equal)(pw->p[i].FIELD, pw->p[j].FIELD))
+				continue;
+			pw->p[j].set = isl_set_union(pw->p[j].set,
+							pw->p[i].set);
+			FN(EL,free)(pw->p[i].FIELD);
+			if (i != pw->n - 1)
+				pw->p[i] = pw->p[pw->n - 1];
+			pw->n--;
+			break;
+		}
+		if (j >= 0)
+			continue;
+		pw->p[i].set = isl_set_coalesce(pw->p[i].set);
+		if (!pw->p[i].set)
+			goto error;
+	}
+
+	return pw;
+error:
+	FN(PW,free)(pw);
+	return NULL;
+}
+
+isl_ctx *FN(PW,get_ctx)(__isl_keep PW *pw)
+{
+	return pw ? pw->dim->ctx : NULL;
+}
+
+int FN(PW,involves_dims)(__isl_keep PW *pw, enum isl_dim_type type,
+	unsigned first, unsigned n)
+{
+	int i;
+
+	if (!pw)
+		return -1;
+	if (pw->n == 0 || n == 0)
+		return 0;
+	for (i = 0; i < pw->n; ++i) {
+		int involves = FN(EL,involves_dims)(pw->p[i].FIELD,
+							type, first, n);
+		if (involves < 0 || involves)
+			return involves;
+	}
+	return 0;
+}
+
+__isl_give PW *FN(PW,drop_dims)(__isl_take PW *pw,
+	enum isl_dim_type type, unsigned first, unsigned n)
+{
+	int i;
+
+	if (!pw)
+		return NULL;
+	if (n == 0)
+		return pw;
+
+	pw = FN(PW,cow)(pw);
+	if (!pw)
+		return NULL;
+	pw->dim = isl_dim_drop(pw->dim, type, first, n);
+	if (!pw->dim)
+		goto error;
+	for (i = 0; i < pw->n; ++i) {
+		pw->p[i].set = isl_set_drop(pw->p[i].set, type, first, n);
+		if (!pw->p[i].set)
+			goto error;
+		pw->p[i].FIELD = FN(EL,drop_dims)(pw->p[i].FIELD, type, first, n);
+		if (!pw->p[i].FIELD)
+			goto error;
+	}
+
+	return pw;
+error:
+	FN(PW,free)(pw);
+	return NULL;
+}
+
+__isl_give PW *FN(PW,fix_dim)(__isl_take PW *pw,
+	enum isl_dim_type type, unsigned pos, isl_int v)
+{
+	int i;
+
+	if (!pw)
+		return NULL;
+
+	pw = FN(PW,cow)(pw);
+	if (!pw)
+		return NULL;
+	for (i = 0; i < pw->n; ++i) {
+		pw->p[i].set = isl_set_fix(pw->p[i].set, type, pos, v);
+		if (!pw->p[i].set)
+			goto error;
+	}
+
+	return pw;
+error:
+	FN(PW,free)(pw);
+	return NULL;
+}
+
+unsigned FN(PW,dim)(__isl_keep PW *pw, enum isl_dim_type type)
+{
+	return pw ? isl_dim_size(pw->dim, type) : 0;
+}