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1/*2 * Copyright 2010      INRIA Saclay3 *4 * Use of this software is governed by the MIT license5 *6 * Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,7 * Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,8 * 91893 Orsay, France9 */10 11#include <isl_pw_macro.h>12 13__isl_give PW *FN(PW,split_dims)(__isl_take PW *pw,14	enum isl_dim_type type, unsigned first, unsigned n)15{16	int i;17	isl_size n_piece;18 19	n_piece = FN(PW,n_piece)(pw);20	if (n_piece < 0)21		return FN(PW,free)(pw);22	if (n == 0)23		return pw;24 25	if (type == isl_dim_in)26		type = isl_dim_set;27 28	for (i = 0; i < n; ++i) {29		isl_set *domain;30 31		domain = FN(PW,take_domain_at)(pw, i);32		domain = isl_set_split_dims(domain, type, first, n);33		pw = FN(PW,restore_domain_at)(pw, i, domain);34	}35 36	return pw;37}38