+/*
+ * Copyright 2008-2009 Katholieke Universiteit Leuven
+ * Copyright 2010 INRIA Saclay
+ *
+ * Use of this software is governed by the GNU LGPLv2.1 license
+ *
+ * Written by Sven Verdoolaege, K.U.Leuven, Departement
+ * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
+ * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
+ * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
+ */
+
#include <ctype.h>
#include <stdio.h>
-#include <isl_set.h>
+#include <string.h>
+#include <strings.h>
+#include <isl/set.h>
+#include <isl/seq.h>
+#include <isl/div.h>
+#include <isl/stream.h>
#include "isl_map_private.h"
+#include <isl/obj.h>
+#include "isl_polynomial_private.h"
+#include <isl/union_map.h>
+#include <isl_mat_private.h>
+
+struct variable {
+ char *name;
+ int pos;
+ isl_vec *def;
+ struct variable *next;
+};
+
+struct vars {
+ struct isl_ctx *ctx;
+ int n;
+ struct variable *v;
+};
+
+static struct vars *vars_new(struct isl_ctx *ctx)
+{
+ struct vars *v;
+ v = isl_alloc_type(ctx, struct vars);
+ if (!v)
+ return NULL;
+ v->ctx = ctx;
+ v->n = 0;
+ v->v = NULL;
+ return v;
+}
+
+static void variable_free(struct variable *var)
+{
+ while (var) {
+ struct variable *next = var->next;
+ isl_vec_free(var->def);
+ free(var->name);
+ free(var);
+ var = next;
+ }
+}
+
+static void vars_free(struct vars *v)
+{
+ if (!v)
+ return;
+ variable_free(v->v);
+ free(v);
+}
+
+static void vars_drop(struct vars *v, int n)
+{
+ struct variable *var;
+
+ if (!v || !v->v)
+ return;
+
+ v->n -= n;
+
+ var = v->v;
+ while (--n >= 0) {
+ struct variable *next = var->next;
+ isl_vec_free(var->def);
+ free(var->name);
+ free(var);
+ var = next;
+ }
+ v->v = var;
+}
+
+static struct variable *variable_new(struct vars *v, const char *name, int len,
+ int pos)
+{
+ struct variable *var;
+ var = isl_alloc_type(v->ctx, struct variable);
+ if (!var)
+ goto error;
+ var->name = strdup(name);
+ var->name[len] = '\0';
+ var->pos = pos;
+ var->def = NULL;
+ var->next = v->v;
+ return var;
+error:
+ variable_free(v->v);
+ return NULL;
+}
+
+static int vars_pos(struct vars *v, const char *s, int len)
+{
+ int pos;
+ struct variable *q;
+
+ if (len == -1)
+ len = strlen(s);
+ for (q = v->v; q; q = q->next) {
+ if (strncmp(q->name, s, len) == 0 && q->name[len] == '\0')
+ break;
+ }
+ if (q)
+ pos = q->pos;
+ else {
+ pos = v->n;
+ v->v = variable_new(v, s, len, v->n);
+ if (!v->v)
+ return -1;
+ v->n++;
+ }
+ return pos;
+}
+
+static int vars_add_anon(struct vars *v)
+{
+ v->v = variable_new(v, "", 0, v->n);
+
+ if (!v->v)
+ return -1;
+ v->n++;
+
+ return 0;
+}
+
+static __isl_give isl_basic_map *set_name(__isl_take isl_basic_map *bmap,
+ enum isl_dim_type type, unsigned pos, char *name)
+{
+ char *prime;
+
+ if (!bmap)
+ return NULL;
+ if (!name)
+ return bmap;
+
+ prime = strchr(name, '\'');
+ if (prime)
+ *prime = '\0';
+ bmap = isl_basic_map_set_dim_name(bmap, type, pos, name);
+ if (prime)
+ *prime = '\'';
+
+ return bmap;
+}
+
+static int accept_cst_factor(struct isl_stream *s, isl_int *f)
+{
+ struct isl_token *tok;
+
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting constant value");
+ goto error;
+ }
+
+ isl_int_mul(*f, *f, tok->u.v);
+
+ isl_token_free(tok);
+
+ if (isl_stream_eat_if_available(s, '*'))
+ return accept_cst_factor(s, f);
+
+ return 0;
+error:
+ isl_token_free(tok);
+ return -1;
+}
+
+static struct isl_vec *accept_affine(struct isl_stream *s, struct vars *v);
+static int read_div_definition(struct isl_stream *s, struct vars *v);
+
+static __isl_give isl_vec *accept_affine_factor(struct isl_stream *s,
+ struct vars *v)
+{
+ struct isl_token *tok = NULL;
+ isl_vec *aff = NULL;
+
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
+ }
+ if (tok->type == ISL_TOKEN_IDENT) {
+ int n = v->n;
+ int pos = vars_pos(v, tok->u.s, -1);
+ if (pos < 0)
+ goto error;
+ if (pos >= n) {
+ isl_stream_error(s, tok, "unknown identifier");
+ goto error;
+ }
+
+ aff = isl_vec_alloc(v->ctx, 1 + v->n);
+ if (!aff)
+ goto error;
+ isl_seq_clr(aff->el, aff->size);
+ isl_int_set_si(aff->el[1 + pos], 1);
+ isl_token_free(tok);
+ } else if (tok->type == ISL_TOKEN_VALUE) {
+ if (isl_stream_eat_if_available(s, '*')) {
+ aff = accept_affine_factor(s, v);
+ aff = isl_vec_scale(aff, tok->u.v);
+ } else {
+ aff = isl_vec_alloc(v->ctx, 1 + v->n);
+ if (!aff)
+ goto error;
+ isl_seq_clr(aff->el, aff->size);
+ isl_int_set(aff->el[0], tok->u.v);
+ }
+ isl_token_free(tok);
+ } else if (tok->type == '(') {
+ isl_token_free(tok);
+ tok = NULL;
+ aff = accept_affine(s, v);
+ if (!aff)
+ goto error;
+ if (isl_stream_eat(s, ')'))
+ goto error;
+ } else if (tok->type == '[') {
+ if (vars_add_anon(v) < 0)
+ goto error;
+ aff = isl_vec_alloc(v->ctx, 1 + v->n);
+ if (!aff)
+ goto error;
+ isl_seq_clr(aff->el, aff->size);
+ isl_int_set_si(aff->el[1 + v->n - 1], 1);
+ isl_stream_push_token(s, tok);
+ tok = NULL;
+ if (read_div_definition(s, v) < 0)
+ goto error;
+ } else {
+ isl_stream_error(s, tok, "expecting factor");
+ goto error;
+ }
+ if (isl_stream_eat_if_available(s, '*')) {
+ isl_int f;
+ isl_int_init(f);
+ isl_int_set_si(f, 1);
+ if (accept_cst_factor(s, &f) < 0) {
+ isl_int_clear(f);
+ goto error;
+ }
+ aff = isl_vec_scale(aff, f);
+ isl_int_clear(f);
+ }
+
+ return aff;
+error:
+ isl_token_free(tok);
+ isl_vec_free(aff);
+ return NULL;
+}
-static char *next_line(FILE *input, char *line, unsigned len)
+static struct isl_vec *accept_affine(struct isl_stream *s, struct vars *v)
{
- char *p;
+ struct isl_token *tok = NULL;
+ struct isl_vec *aff;
+ int sign = 1;
+
+ aff = isl_vec_alloc(v->ctx, 1 + v->n);
+ if (!aff)
+ return NULL;
+ isl_seq_clr(aff->el, aff->size);
- do {
- if (!(p = fgets(line, len, input)))
+ for (;;) {
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
+ }
+ if (tok->type == '-') {
+ sign = -sign;
+ isl_token_free(tok);
+ continue;
+ }
+ if (tok->type == '(' || tok->type == '[' ||
+ tok->type == ISL_TOKEN_IDENT) {
+ isl_vec *aff2;
+ isl_stream_push_token(s, tok);
+ tok = NULL;
+ aff2 = accept_affine_factor(s, v);
+ if (sign < 0)
+ aff2 = isl_vec_scale(aff2, s->ctx->negone);
+ aff = isl_vec_zero_extend(aff, 1 + v->n);
+ aff = isl_vec_add(aff, aff2);
+ if (!aff)
+ goto error;
+ sign = 1;
+ } else if (tok->type == ISL_TOKEN_VALUE) {
+ if (sign < 0)
+ isl_int_neg(tok->u.v, tok->u.v);
+ if (isl_stream_eat_if_available(s, '*') ||
+ isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
+ isl_vec *aff2;
+ aff2 = accept_affine_factor(s, v);
+ aff2 = isl_vec_scale(aff2, tok->u.v);
+ aff = isl_vec_zero_extend(aff, 1 + v->n);
+ aff = isl_vec_add(aff, aff2);
+ if (!aff)
+ goto error;
+ } else {
+ isl_int_add(aff->el[0], aff->el[0], tok->u.v);
+ }
+ sign = 1;
+ } else {
+ isl_stream_error(s, tok, "unexpected isl_token");
+ isl_stream_push_token(s, tok);
+ isl_vec_free(aff);
return NULL;
- while (isspace(*p) && *p != '\n')
- ++p;
- } while (*p == '#' || *p == '\n');
+ }
+ isl_token_free(tok);
+
+ tok = isl_stream_next_token(s);
+ if (tok && tok->type == '-') {
+ sign = -sign;
+ isl_token_free(tok);
+ } else if (tok && tok->type == '+') {
+ /* nothing */
+ isl_token_free(tok);
+ } else if (tok && tok->type == ISL_TOKEN_VALUE &&
+ isl_int_is_neg(tok->u.v)) {
+ isl_stream_push_token(s, tok);
+ } else {
+ if (tok)
+ isl_stream_push_token(s, tok);
+ break;
+ }
+ }
- return p;
+ return aff;
+error:
+ isl_token_free(tok);
+ isl_vec_free(aff);
+ return NULL;
}
-struct isl_basic_set *isl_basic_set_read_from_file(struct isl_ctx *ctx,
- FILE *input, unsigned input_format)
+/* Add any variables in the variable list "v" that are not already in "bmap"
+ * as existentially quantified variables in "bmap".
+ */
+static __isl_give isl_basic_map *add_divs(__isl_take isl_basic_map *bmap,
+ struct vars *v)
{
- struct isl_basic_set *bset = NULL;
- int i, j;
- unsigned n_row, n_col;
- unsigned dim;
- char line[1024];
- char val[1024];
- char *p;
-
- isl_assert(ctx, input_format == ISL_FORMAT_POLYLIB, return NULL);
- isl_assert(ctx, next_line(input, line, sizeof(line)), return NULL);
- isl_assert(ctx, sscanf(line, "%u %u", &n_row, &n_col) == 2, return NULL);
- isl_assert(ctx, n_col >= 2, return NULL);
- dim = n_col - 2;
- bset = isl_basic_set_alloc(ctx, 0, dim, 0, n_row, n_row);
- if (!bset)
- return NULL;
- for (i = 0; i < n_row; ++i) {
- int type;
- int offset;
- int n;
+ int i;
+ int extra;
+ struct variable *var;
+
+ extra = v->n - isl_basic_map_total_dim(bmap);
+
+ if (extra == 0)
+ return bmap;
+
+ bmap = isl_basic_map_extend_dim(bmap, isl_basic_map_get_dim(bmap),
+ extra, 0, 2 * extra);
+
+ for (i = 0; i < extra; ++i)
+ if (isl_basic_map_alloc_div(bmap) < 0)
+ goto error;
+
+ for (i = 0, var = v->v; i < extra; ++i, var = var->next) {
+ int k = bmap->n_div - 1 - i;
+
+ isl_seq_cpy(bmap->div[k], var->def->el, var->def->size);
+ isl_seq_clr(bmap->div[k] + var->def->size,
+ 2 + v->n - var->def->size);
+
+ if (isl_basic_map_add_div_constraints(bmap, k) < 0)
+ goto error;
+ }
+
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static __isl_give isl_basic_map *read_var_def(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, enum isl_dim_type type, struct vars *v)
+{
+ isl_dim *dim;
+ isl_basic_map *def = NULL;
+ struct isl_vec *vec;
+ int k;
+ int n;
+
+ if (vars_add_anon(v) < 0)
+ goto error;
+ n = v->n;
+
+ vec = accept_affine(s, v);
+ if (!vec)
+ goto error;
+
+ dim = isl_basic_map_get_dim(bmap);
+ def = isl_basic_map_universe(dim);
+ def = add_divs(def, v);
+ def = isl_basic_map_extend_constraints(def, 1, 0);
+ k = isl_basic_map_alloc_equality(def);
+ if (k >= 0) {
+ isl_seq_cpy(def->eq[k], vec->el, vec->size);
+ isl_int_set_si(def->eq[k][1 + n - 1], -1);
+ }
+ isl_vec_free(vec);
+ if (k < 0)
+ goto error;
+
+ vars_drop(v, v->n - n);
+
+ def = isl_basic_map_simplify(def);
+ def = isl_basic_map_finalize(def);
+ bmap = isl_basic_map_intersect(bmap, def);
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ isl_basic_map_free(def);
+ return NULL;
+}
+
+static __isl_give isl_basic_map *read_var_list(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, enum isl_dim_type type, struct vars *v)
+{
+ int i = 0;
+ struct isl_token *tok;
+
+ while ((tok = isl_stream_next_token(s)) != NULL) {
+ int new_name = 0;
+
+ if (tok->type == ISL_TOKEN_IDENT) {
+ int n = v->n;
+ int p = vars_pos(v, tok->u.s, -1);
+ if (p < 0)
+ goto error;
+ new_name = p >= n;
+ }
+
+ if (new_name) {
+ bmap = isl_basic_map_add(bmap, type, 1);
+ bmap = set_name(bmap, type, i, v->v->name);
+ isl_token_free(tok);
+ } else if (tok->type == ISL_TOKEN_IDENT ||
+ tok->type == ISL_TOKEN_VALUE ||
+ tok->type == '-' ||
+ tok->type == '(') {
+ if (type == isl_dim_param) {
+ isl_stream_error(s, tok,
+ "expecting unique identifier");
+ goto error;
+ }
+ isl_stream_push_token(s, tok);
+ tok = NULL;
+ bmap = isl_basic_map_add(bmap, type, 1);
+ bmap = read_var_def(s, bmap, type, v);
+ } else
+ break;
+
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ',')
+ break;
+
+ isl_token_free(tok);
+ i++;
+ }
+ if (tok)
+ isl_stream_push_token(s, tok);
+
+ return bmap;
+error:
+ isl_token_free(tok);
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static __isl_give isl_mat *accept_affine_list(struct isl_stream *s,
+ struct vars *v)
+{
+ struct isl_vec *vec;
+ struct isl_mat *mat;
+ struct isl_token *tok = NULL;
+
+ vec = accept_affine(s, v);
+ mat = isl_mat_from_row_vec(vec);
+ if (!mat)
+ return NULL;
+
+ for (;;) {
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
+ }
+ if (tok->type != ',') {
+ isl_stream_push_token(s, tok);
+ break;
+ }
+ isl_token_free(tok);
+
+ vec = accept_affine(s, v);
+ mat = isl_mat_add_zero_cols(mat, 1 + v->n - isl_mat_cols(mat));
+ mat = isl_mat_vec_concat(mat, vec);
+ if (!mat)
+ return NULL;
+ }
+
+ return mat;
+error:
+ isl_mat_free(mat);
+ return NULL;
+}
+
+static int read_div_definition(struct isl_stream *s, struct vars *v)
+{
+ struct isl_token *tok;
+ int seen_paren = 0;
+ struct isl_vec *aff;
+ struct variable *var;
+
+ if (isl_stream_eat(s, '['))
+ return -1;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ return -1;
+ if (tok->type == '(') {
+ seen_paren = 1;
+ isl_token_free(tok);
+ } else
+ isl_stream_push_token(s, tok);
+
+ var = v->v;
+
+ aff = accept_affine(s, v);
+ if (!aff)
+ return -1;
+
+ var->def = isl_vec_alloc(s->ctx, 2 + v->n);
+ if (!var->def) {
+ isl_vec_free(aff);
+ return -1;
+ }
+
+ isl_seq_cpy(var->def->el + 1, aff->el, aff->size);
+
+ isl_vec_free(aff);
+
+ if (seen_paren && isl_stream_eat(s, ')'))
+ return -1;
+ if (isl_stream_eat(s, '/'))
+ return -1;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ return -1;
+ if (tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expected denominator");
+ isl_stream_push_token(s, tok);
+ return -1;
+ }
+ isl_int_set(var->def->el[0], tok->u.v);
+ isl_token_free(tok);
+
+ if (isl_stream_eat(s, ']'))
+ return -1;
+
+ return 0;
+}
+
+static struct isl_basic_map *add_div_definition(struct isl_stream *s,
+ struct vars *v, struct isl_basic_map *bmap, int k)
+{
+ struct variable *var = v->v;
+
+ if (read_div_definition(s, v) < 0)
+ goto error;
+
+ isl_seq_cpy(bmap->div[k], var->def->el, 2 + v->n);
+
+ if (isl_basic_map_add_div_constraints(bmap, k) < 0)
+ goto error;
+
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static struct isl_basic_map *read_defined_var_list(struct isl_stream *s,
+ struct vars *v, struct isl_basic_map *bmap)
+{
+ struct isl_token *tok;
+
+ while ((tok = isl_stream_next_token(s)) != NULL) {
int k;
- isl_int *c;
-
- p = next_line(input, line, sizeof(line));
- isl_assert(ctx, p, goto error);
- n = sscanf(p, "%u%n", &type, &offset);
- isl_assert(ctx, n != 0, goto error);
- p += offset;
- isl_assert(ctx, type == 0 || type == 1, goto error);
- if (type == 0) {
- k = isl_basic_set_alloc_equality(ctx, bset);
- c = bset->eq[k];
+ int p;
+ int n = v->n;
+ unsigned total = isl_basic_map_total_dim(bmap);
+
+ if (tok->type != ISL_TOKEN_IDENT)
+ break;
+
+ p = vars_pos(v, tok->u.s, -1);
+ if (p < 0)
+ goto error;
+ if (p < n) {
+ isl_stream_error(s, tok, "expecting unique identifier");
+ goto error;
+ }
+
+ bmap = isl_basic_map_cow(bmap);
+ bmap = isl_basic_map_extend_dim(bmap, isl_dim_copy(bmap->dim),
+ 1, 0, 2);
+
+ if ((k = isl_basic_map_alloc_div(bmap)) < 0)
+ goto error;
+ isl_seq_clr(bmap->div[k], 1 + 1 + total);
+
+ isl_token_free(tok);
+ tok = isl_stream_next_token(s);
+ if (tok && tok->type == '=') {
+ isl_token_free(tok);
+ bmap = add_div_definition(s, v, bmap, k);
+ tok = isl_stream_next_token(s);
+ }
+
+ if (!tok || tok->type != ',')
+ break;
+
+ isl_token_free(tok);
+ }
+ if (tok)
+ isl_stream_push_token(s, tok);
+
+ return bmap;
+error:
+ isl_token_free(tok);
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static int next_is_tuple(struct isl_stream *s)
+{
+ struct isl_token *tok;
+ int is_tuple;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ return 0;
+ if (tok->type == '[') {
+ isl_stream_push_token(s, tok);
+ return 1;
+ }
+ if (tok->type != ISL_TOKEN_IDENT) {
+ isl_stream_push_token(s, tok);
+ return 0;
+ }
+
+ is_tuple = isl_stream_next_token_is(s, '[');
+
+ isl_stream_push_token(s, tok);
+
+ return is_tuple;
+}
+
+static __isl_give isl_basic_map *read_tuple(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, enum isl_dim_type type, struct vars *v);
+
+static __isl_give isl_basic_map *read_nested_tuple(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, struct vars *v)
+{
+ bmap = read_tuple(s, bmap, isl_dim_in, v);
+ if (isl_stream_eat(s, ISL_TOKEN_TO))
+ goto error;
+ bmap = read_tuple(s, bmap, isl_dim_out, v);
+ bmap = isl_basic_map_from_range(isl_basic_map_wrap(bmap));
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static __isl_give isl_basic_map *read_tuple(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, enum isl_dim_type type, struct vars *v)
+{
+ struct isl_token *tok;
+ char *name = NULL;
+
+ tok = isl_stream_next_token(s);
+ if (tok && tok->type == ISL_TOKEN_IDENT) {
+ name = strdup(tok->u.s);
+ if (!name)
+ goto error;
+ isl_token_free(tok);
+ tok = isl_stream_next_token(s);
+ }
+ if (!tok || tok->type != '[') {
+ isl_stream_error(s, tok, "expecting '['");
+ goto error;
+ }
+ isl_token_free(tok);
+ if (type != isl_dim_param && next_is_tuple(s)) {
+ isl_dim *dim = isl_basic_map_get_dim(bmap);
+ int nparam = isl_dim_size(dim, isl_dim_param);
+ int n_in = isl_dim_size(dim, isl_dim_in);
+ isl_basic_map *nested;
+ if (type == isl_dim_out)
+ dim = isl_dim_move(dim, isl_dim_param, nparam,
+ isl_dim_in, 0, n_in);
+ nested = isl_basic_map_alloc_dim(dim, 0, 0, 0);
+ nested = read_nested_tuple(s, nested, v);
+ if (type == isl_dim_in) {
+ nested = isl_basic_map_reverse(nested);
+ bmap = isl_basic_map_intersect(nested, bmap);
} else {
- k = isl_basic_set_alloc_inequality(ctx, bset);
- c = bset->ineq[k];
+ isl_basic_set *bset;
+ dim = isl_dim_range(isl_basic_map_get_dim(nested));
+ dim = isl_dim_drop(dim, isl_dim_param, nparam, n_in);
+ dim = isl_dim_join(isl_basic_map_get_dim(bmap), dim);
+ bset = isl_basic_map_domain(bmap);
+ nested = isl_basic_map_reset_dim(nested, dim);
+ bmap = isl_basic_map_intersect_domain(nested, bset);
+ }
+ } else
+ bmap = read_var_list(s, bmap, type, v);
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ']') {
+ isl_stream_error(s, tok, "expecting ']'");
+ goto error;
+ }
+ isl_token_free(tok);
+
+ if (name) {
+ bmap = isl_basic_map_set_tuple_name(bmap, type, name);
+ free(name);
+ }
+
+ return bmap;
+error:
+ if (tok)
+ isl_token_free(tok);
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static struct isl_basic_map *add_constraints(struct isl_stream *s,
+ struct vars *v, struct isl_basic_map *bmap);
+
+static struct isl_basic_map *add_exists(struct isl_stream *s,
+ struct vars *v, struct isl_basic_map *bmap)
+{
+ struct isl_token *tok;
+ int n = v->n;
+ int extra;
+ int seen_paren = 0;
+ int i;
+ unsigned total;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ goto error;
+ if (tok->type == '(') {
+ seen_paren = 1;
+ isl_token_free(tok);
+ } else
+ isl_stream_push_token(s, tok);
+
+ bmap = read_defined_var_list(s, v, bmap);
+ if (!bmap)
+ goto error;
+
+ if (isl_stream_eat(s, ':'))
+ goto error;
+ bmap = add_constraints(s, v, bmap);
+ if (seen_paren && isl_stream_eat(s, ')'))
+ goto error;
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static __isl_give isl_basic_map *construct_constraint(
+ __isl_take isl_basic_map *bmap, enum isl_token_type type,
+ isl_int *left, isl_int *right)
+{
+ int k;
+ unsigned len;
+ struct isl_ctx *ctx;
+
+ if (!bmap)
+ return NULL;
+ len = 1 + isl_basic_map_total_dim(bmap);
+ ctx = bmap->ctx;
+
+ k = isl_basic_map_alloc_inequality(bmap);
+ if (k < 0)
+ goto error;
+ if (type == ISL_TOKEN_LE)
+ isl_seq_combine(bmap->ineq[k], ctx->negone, left,
+ ctx->one, right,
+ len);
+ else if (type == ISL_TOKEN_GE)
+ isl_seq_combine(bmap->ineq[k], ctx->one, left,
+ ctx->negone, right,
+ len);
+ else if (type == ISL_TOKEN_LT) {
+ isl_seq_combine(bmap->ineq[k], ctx->negone, left,
+ ctx->one, right,
+ len);
+ isl_int_sub_ui(bmap->ineq[k][0], bmap->ineq[k][0], 1);
+ } else if (type == ISL_TOKEN_GT) {
+ isl_seq_combine(bmap->ineq[k], ctx->one, left,
+ ctx->negone, right,
+ len);
+ isl_int_sub_ui(bmap->ineq[k][0], bmap->ineq[k][0], 1);
+ } else {
+ isl_seq_combine(bmap->ineq[k], ctx->one, left,
+ ctx->negone, right,
+ len);
+ isl_basic_map_inequality_to_equality(bmap, k);
+ }
+
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static int is_comparator(struct isl_token *tok)
+{
+ if (!tok)
+ return 0;
+
+ switch (tok->type) {
+ case ISL_TOKEN_LT:
+ case ISL_TOKEN_GT:
+ case ISL_TOKEN_LE:
+ case ISL_TOKEN_GE:
+ case '=':
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static struct isl_basic_map *add_constraint(struct isl_stream *s,
+ struct vars *v, struct isl_basic_map *bmap)
+{
+ int i, j;
+ struct isl_token *tok = NULL;
+ struct isl_mat *aff1 = NULL, *aff2 = NULL;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ goto error;
+ if (tok->type == ISL_TOKEN_EXISTS) {
+ isl_token_free(tok);
+ return add_exists(s, v, bmap);
+ }
+ isl_stream_push_token(s, tok);
+ tok = NULL;
+
+ bmap = isl_basic_map_cow(bmap);
+
+ aff1 = accept_affine_list(s, v);
+ if (!aff1)
+ goto error;
+ tok = isl_stream_next_token(s);
+ if (!is_comparator(tok)) {
+ isl_stream_error(s, tok, "missing operator");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ tok = NULL;
+ goto error;
+ }
+ for (;;) {
+ aff2 = accept_affine_list(s, v);
+ if (!aff2)
+ goto error;
+
+ aff1 = isl_mat_add_zero_cols(aff1, aff2->n_col - aff1->n_col);
+ if (!aff1)
+ goto error;
+ bmap = add_divs(bmap, v);
+ bmap = isl_basic_map_extend_constraints(bmap, 0,
+ aff1->n_row * aff2->n_row);
+ for (i = 0; i < aff1->n_row; ++i)
+ for (j = 0; j < aff2->n_row; ++j)
+ bmap = construct_constraint(bmap, tok->type,
+ aff1->row[i], aff2->row[j]);
+ isl_token_free(tok);
+ isl_mat_free(aff1);
+ aff1 = aff2;
+
+ tok = isl_stream_next_token(s);
+ if (!is_comparator(tok)) {
+ if (tok)
+ isl_stream_push_token(s, tok);
+ break;
}
- isl_assert(ctx, k >= 0, goto error);
- for (j = 0; j < dim; ++j) {
- n = sscanf(p, "%s%n", val, &offset);
- isl_assert(ctx, n != 0, goto error);
- isl_int_read(c[1+j], val);
- p += offset;
+ }
+ isl_mat_free(aff1);
+
+ return bmap;
+error:
+ if (tok)
+ isl_token_free(tok);
+ isl_mat_free(aff1);
+ isl_mat_free(aff2);
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static struct isl_basic_map *add_constraints(struct isl_stream *s,
+ struct vars *v, struct isl_basic_map *bmap)
+{
+ struct isl_token *tok;
+
+ for (;;) {
+ bmap = add_constraint(s, v, bmap);
+ if (!bmap)
+ return NULL;
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
}
- n = sscanf(p, "%s%n", val, &offset);
- isl_assert(ctx, n != 0, goto error);
- isl_int_read(c[0], val);
+ if (tok->type != ISL_TOKEN_AND)
+ break;
+ isl_token_free(tok);
}
- bset = isl_basic_set_simplify(ctx, bset);
- bset = isl_basic_set_finalize(ctx, bset);
- return bset;
+ isl_stream_push_token(s, tok);
+
+ return bmap;
error:
- isl_basic_set_free(ctx, bset);
+ if (tok)
+ isl_token_free(tok);
+ isl_basic_map_free(bmap);
return NULL;
}
+
+static struct isl_basic_map *read_disjunct(struct isl_stream *s,
+ struct vars *v, __isl_take isl_dim *dim)
+{
+ int seen_paren = 0;
+ struct isl_token *tok;
+ struct isl_basic_map *bmap;
+
+ bmap = isl_basic_map_alloc_dim(dim, 0, 0, 0);
+ if (!bmap)
+ return NULL;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ goto error;
+ if (tok->type == '(') {
+ seen_paren = 1;
+ isl_token_free(tok);
+ } else
+ isl_stream_push_token(s, tok);
+
+ bmap = add_constraints(s, v, bmap);
+ bmap = isl_basic_map_simplify(bmap);
+ bmap = isl_basic_map_finalize(bmap);
+
+ if (seen_paren && isl_stream_eat(s, ')'))
+ goto error;
+
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static struct isl_map *read_disjuncts(struct isl_stream *s,
+ struct vars *v, __isl_take isl_dim *dim)
+{
+ struct isl_token *tok;
+ struct isl_map *map;
+
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
+ }
+ if (tok->type == '}') {
+ isl_stream_push_token(s, tok);
+ return isl_map_universe(dim);
+ }
+ isl_stream_push_token(s, tok);
+
+ map = isl_map_empty(isl_dim_copy(dim));
+ for (;;) {
+ struct isl_basic_map *bmap;
+ int n = v->n;
+
+ bmap = read_disjunct(s, v, isl_dim_copy(dim));
+ map = isl_map_union(map, isl_map_from_basic_map(bmap));
+
+ vars_drop(v, v->n - n);
+
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_OR)
+ break;
+ isl_token_free(tok);
+ }
+ if (tok)
+ isl_stream_push_token(s, tok);
+
+ isl_dim_free(dim);
+ return map;
+error:
+ isl_dim_free(dim);
+ return NULL;
+}
+
+static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map *bmap, int pos)
+{
+ if (pos < isl_basic_map_dim(bmap, isl_dim_out))
+ return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
+ isl_basic_map_dim(bmap, isl_dim_in) + pos;
+ pos -= isl_basic_map_dim(bmap, isl_dim_out);
+
+ if (pos < isl_basic_map_dim(bmap, isl_dim_in))
+ return 1 + isl_basic_map_dim(bmap, isl_dim_param) + pos;
+ pos -= isl_basic_map_dim(bmap, isl_dim_in);
+
+ if (pos < isl_basic_map_dim(bmap, isl_dim_div))
+ return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
+ isl_basic_map_dim(bmap, isl_dim_in) +
+ isl_basic_map_dim(bmap, isl_dim_out) + pos;
+ pos -= isl_basic_map_dim(bmap, isl_dim_div);
+
+ if (pos < isl_basic_map_dim(bmap, isl_dim_param))
+ return 1 + pos;
+
+ return 0;
+}
+
+static __isl_give isl_basic_map *basic_map_read_polylib_constraint(
+ struct isl_stream *s, __isl_take isl_basic_map *bmap)
+{
+ int j;
+ struct isl_token *tok;
+ int type;
+ int k;
+ isl_int *c;
+ unsigned nparam;
+ unsigned dim;
+
+ if (!bmap)
+ return NULL;
+
+ nparam = isl_basic_map_dim(bmap, isl_dim_param);
+ dim = isl_basic_map_dim(bmap, isl_dim_out);
+
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting coefficient");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ if (!tok->on_new_line) {
+ isl_stream_error(s, tok, "coefficient should appear on new line");
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+
+ type = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
+
+ isl_assert(s->ctx, type == 0 || type == 1, goto error);
+ if (type == 0) {
+ k = isl_basic_map_alloc_equality(bmap);
+ c = bmap->eq[k];
+ } else {
+ k = isl_basic_map_alloc_inequality(bmap);
+ c = bmap->ineq[k];
+ }
+ if (k < 0)
+ goto error;
+
+ for (j = 0; j < 1 + isl_basic_map_total_dim(bmap); ++j) {
+ int pos;
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting coefficient");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ if (tok->on_new_line) {
+ isl_stream_error(s, tok,
+ "coefficient should not appear on new line");
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ pos = polylib_pos_to_isl_pos(bmap, j);
+ isl_int_set(c[pos], tok->u.v);
+ isl_token_free(tok);
+ }
+
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s,
+ int nparam)
+{
+ int i;
+ struct isl_token *tok;
+ struct isl_token *tok2;
+ int n_row, n_col;
+ int on_new_line;
+ unsigned in = 0, out, local = 0;
+ struct isl_basic_map *bmap = NULL;
+
+ if (nparam < 0)
+ nparam = 0;
+
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ return NULL;
+ }
+ tok2 = isl_stream_next_token(s);
+ if (!tok2) {
+ isl_token_free(tok);
+ isl_stream_error(s, NULL, "unexpected EOF");
+ return NULL;
+ }
+ if (tok->type != ISL_TOKEN_VALUE || tok2->type != ISL_TOKEN_VALUE) {
+ isl_stream_push_token(s, tok2);
+ isl_stream_push_token(s, tok);
+ isl_stream_error(s, NULL,
+ "expecting constraint matrix dimensions");
+ return NULL;
+ }
+ n_row = isl_int_get_si(tok->u.v);
+ n_col = isl_int_get_si(tok2->u.v);
+ on_new_line = tok2->on_new_line;
+ isl_token_free(tok2);
+ isl_token_free(tok);
+ isl_assert(s->ctx, !on_new_line, return NULL);
+ isl_assert(s->ctx, n_row >= 0, return NULL);
+ isl_assert(s->ctx, n_col >= 2 + nparam, return NULL);
+ tok = isl_stream_next_token_on_same_line(s);
+ if (tok) {
+ if (tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok,
+ "expecting number of output dimensions");
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ out = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
+
+ tok = isl_stream_next_token_on_same_line(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok,
+ "expecting number of input dimensions");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ in = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
+
+ tok = isl_stream_next_token_on_same_line(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok,
+ "expecting number of existentials");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ local = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
+
+ tok = isl_stream_next_token_on_same_line(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok,
+ "expecting number of parameters");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ nparam = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
+ if (n_col != 1 + out + in + local + nparam + 1) {
+ isl_stream_error(s, NULL,
+ "dimensions don't match");
+ goto error;
+ }
+ } else
+ out = n_col - 2 - nparam;
+ bmap = isl_basic_map_alloc(s->ctx, nparam, in, out, local, n_row, n_row);
+ if (!bmap)
+ return NULL;
+
+ for (i = 0; i < local; ++i) {
+ int k = isl_basic_map_alloc_div(bmap);
+ if (k < 0)
+ goto error;
+ isl_seq_clr(bmap->div[k], 1 + 1 + nparam + in + out + local);
+ }
+
+ for (i = 0; i < n_row; ++i)
+ bmap = basic_map_read_polylib_constraint(s, bmap);
+
+ tok = isl_stream_next_token_on_same_line(s);
+ if (tok) {
+ isl_stream_error(s, tok, "unexpected extra token on line");
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+
+ bmap = isl_basic_map_simplify(bmap);
+ bmap = isl_basic_map_finalize(bmap);
+ return bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static struct isl_map *map_read_polylib(struct isl_stream *s, int nparam)
+{
+ struct isl_token *tok;
+ struct isl_token *tok2;
+ int i, n;
+ struct isl_map *map;
+
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ return NULL;
+ }
+ tok2 = isl_stream_next_token_on_same_line(s);
+ if (tok2 && tok2->type == ISL_TOKEN_VALUE) {
+ isl_stream_push_token(s, tok2);
+ isl_stream_push_token(s, tok);
+ return isl_map_from_basic_map(basic_map_read_polylib(s, nparam));
+ }
+ if (tok2) {
+ isl_stream_error(s, tok2, "unexpected token");
+ isl_stream_push_token(s, tok2);
+ isl_stream_push_token(s, tok);
+ return NULL;
+ }
+ n = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
+
+ isl_assert(s->ctx, n >= 1, return NULL);
+
+ map = isl_map_from_basic_map(basic_map_read_polylib(s, nparam));
+
+ for (i = 1; map && i < n; ++i)
+ map = isl_map_union(map,
+ isl_map_from_basic_map(basic_map_read_polylib(s, nparam)));
+
+ return map;
+}
+
+static int optional_power(struct isl_stream *s)
+{
+ int pow;
+ struct isl_token *tok;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ return 1;
+ if (tok->type != '^') {
+ isl_stream_push_token(s, tok);
+ return 1;
+ }
+ isl_token_free(tok);
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting exponent");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ return 1;
+ }
+ pow = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
+ return pow;
+}
+
+static __isl_give isl_div *read_div(struct isl_stream *s,
+ __isl_take isl_dim *dim, struct vars *v)
+{
+ int n;
+ isl_basic_map *bmap;
+
+ n = v->n;
+ bmap = isl_basic_map_universe(dim);
+
+ if (vars_add_anon(v) < 0)
+ goto error;
+ if (read_div_definition(s, v) < 0)
+ goto error;
+ bmap = add_divs(bmap, v);
+ bmap = isl_basic_map_order_divs(bmap);
+ if (!bmap)
+ goto error;
+ vars_drop(v, v->n - n);
+
+ return isl_basic_map_div(bmap, bmap->n_div - 1);
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static __isl_give isl_qpolynomial *read_term(struct isl_stream *s,
+ __isl_keep isl_basic_map *bmap, struct vars *v);
+
+static __isl_give isl_qpolynomial *read_factor(struct isl_stream *s,
+ __isl_keep isl_basic_map *bmap, struct vars *v)
+{
+ struct isl_qpolynomial *qp;
+ struct isl_token *tok;
+
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ return NULL;
+ }
+ if (tok->type == '(') {
+ int pow;
+
+ isl_token_free(tok);
+ qp = read_term(s, bmap, v);
+ if (!qp)
+ return NULL;
+ if (isl_stream_eat(s, ')'))
+ goto error;
+ pow = optional_power(s);
+ qp = isl_qpolynomial_pow(qp, pow);
+ } else if (tok->type == ISL_TOKEN_VALUE) {
+ struct isl_token *tok2;
+ tok2 = isl_stream_next_token(s);
+ if (tok2 && tok2->type == '/') {
+ isl_token_free(tok2);
+ tok2 = isl_stream_next_token(s);
+ if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok2, "expected denominator");
+ isl_token_free(tok);
+ isl_token_free(tok2);
+ return NULL;
+ }
+ qp = isl_qpolynomial_rat_cst(isl_basic_map_get_dim(bmap),
+ tok->u.v, tok2->u.v);
+ isl_token_free(tok2);
+ } else {
+ isl_stream_push_token(s, tok2);
+ qp = isl_qpolynomial_cst(isl_basic_map_get_dim(bmap),
+ tok->u.v);
+ }
+ isl_token_free(tok);
+ } else if (tok->type == ISL_TOKEN_INFTY) {
+ isl_token_free(tok);
+ qp = isl_qpolynomial_infty(isl_basic_map_get_dim(bmap));
+ } else if (tok->type == ISL_TOKEN_NAN) {
+ isl_token_free(tok);
+ qp = isl_qpolynomial_nan(isl_basic_map_get_dim(bmap));
+ } else if (tok->type == ISL_TOKEN_IDENT) {
+ int n = v->n;
+ int pos = vars_pos(v, tok->u.s, -1);
+ int pow;
+ if (pos < 0) {
+ isl_token_free(tok);
+ return NULL;
+ }
+ if (pos >= n) {
+ isl_stream_error(s, tok, "unknown identifier");
+ isl_token_free(tok);
+ return NULL;
+ }
+ isl_token_free(tok);
+ pow = optional_power(s);
+ qp = isl_qpolynomial_var_pow(isl_basic_map_get_dim(bmap), pos, pow);
+ } else if (tok->type == '[') {
+ isl_div *div;
+ int pow;
+
+ isl_stream_push_token(s, tok);
+ div = read_div(s, isl_basic_map_get_dim(bmap), v);
+ pow = optional_power(s);
+ qp = isl_qpolynomial_div_pow(div, pow);
+ } else if (tok->type == '-') {
+ struct isl_qpolynomial *qp2;
+
+ isl_token_free(tok);
+ qp = isl_qpolynomial_cst(isl_basic_map_get_dim(bmap),
+ s->ctx->negone);
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_mul(qp, qp2);
+ } else {
+ isl_stream_error(s, tok, "unexpected isl_token");
+ isl_stream_push_token(s, tok);
+ return NULL;
+ }
+
+ if (isl_stream_eat_if_available(s, '*') ||
+ isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
+ struct isl_qpolynomial *qp2;
+
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_mul(qp, qp2);
+ }
+
+ return qp;
+error:
+ isl_qpolynomial_free(qp);
+ return NULL;
+}
+
+static __isl_give isl_qpolynomial *read_term(struct isl_stream *s,
+ __isl_keep isl_basic_map *bmap, struct vars *v)
+{
+ struct isl_token *tok;
+ struct isl_qpolynomial *qp;
+
+ qp = read_factor(s, bmap, v);
+
+ for (;;) {
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ return qp;
+
+ if (tok->type == '+') {
+ struct isl_qpolynomial *qp2;
+
+ isl_token_free(tok);
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_add(qp, qp2);
+ } else if (tok->type == '-') {
+ struct isl_qpolynomial *qp2;
+
+ isl_token_free(tok);
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_sub(qp, qp2);
+ } else if (tok->type == ISL_TOKEN_VALUE &&
+ isl_int_is_neg(tok->u.v)) {
+ struct isl_qpolynomial *qp2;
+
+ isl_stream_push_token(s, tok);
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_add(qp, qp2);
+ } else {
+ isl_stream_push_token(s, tok);
+ break;
+ }
+ }
+
+ return qp;
+}
+
+static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, struct vars *v)
+{
+ struct isl_token *tok;
+ struct isl_map *map;
+
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
+ }
+ map = isl_map_from_basic_map(isl_basic_map_copy(bmap));
+ if (tok->type == ':') {
+ isl_token_free(tok);
+ map = isl_map_intersect(map,
+ read_disjuncts(s, v, isl_basic_map_get_dim(bmap)));
+ } else
+ isl_stream_push_token(s, tok);
+
+ isl_basic_map_free(bmap);
+
+ return map;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+static struct isl_obj obj_read_poly(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, struct vars *v, int n)
+{
+ struct isl_obj obj = { isl_obj_pw_qpolynomial, NULL };
+ struct isl_pw_qpolynomial *pwqp;
+ struct isl_qpolynomial *qp;
+ struct isl_map *map;
+ struct isl_set *set;
+
+ qp = read_term(s, bmap, v);
+ map = read_optional_disjuncts(s, bmap, v);
+ set = isl_map_range(map);
+
+ pwqp = isl_pw_qpolynomial_alloc(set, qp);
+
+ vars_drop(v, v->n - n);
+
+ obj.v = pwqp;
+ return obj;
+}
+
+static struct isl_obj obj_read_poly_or_fold(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, struct vars *v, int n)
+{
+ struct isl_obj obj = { isl_obj_pw_qpolynomial_fold, NULL };
+ struct isl_obj obj_p;
+ isl_qpolynomial *qp;
+ isl_qpolynomial_fold *fold = NULL;
+ isl_pw_qpolynomial_fold *pwf;
+ isl_map *map;
+ isl_set *set;
+
+ if (!isl_stream_eat_if_available(s, ISL_TOKEN_MAX))
+ return obj_read_poly(s, bmap, v, n);
+
+ if (isl_stream_eat(s, '('))
+ goto error;
+
+ qp = read_term(s, bmap, v);
+ fold = isl_qpolynomial_fold_alloc(isl_fold_max, qp);
+
+ while (isl_stream_eat_if_available(s, ',')) {
+ isl_qpolynomial_fold *fold_i;
+ qp = read_term(s, bmap, v);
+ fold_i = isl_qpolynomial_fold_alloc(isl_fold_max, qp);
+ fold = isl_qpolynomial_fold_fold(fold, fold_i);
+ }
+
+ if (isl_stream_eat(s, ')'))
+ goto error;
+
+ map = read_optional_disjuncts(s, bmap, v);
+ set = isl_map_range(map);
+ pwf = isl_pw_qpolynomial_fold_alloc(isl_fold_max, set, fold);
+
+ vars_drop(v, v->n - n);
+
+ obj.v = pwf;
+ return obj;
+error:
+ isl_basic_map_free(bmap);
+ isl_qpolynomial_fold_free(fold);
+ obj.type = isl_obj_none;
+ return obj;
+}
+
+static struct isl_obj obj_read_body(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, struct vars *v)
+{
+ struct isl_map *map = NULL;
+ struct isl_token *tok;
+ struct isl_obj obj = { isl_obj_set, NULL };
+ int n = v->n;
+
+ if (!next_is_tuple(s))
+ return obj_read_poly_or_fold(s, bmap, v, n);
+
+ bmap = read_tuple(s, bmap, isl_dim_in, v);
+ if (!bmap)
+ goto error;
+ tok = isl_stream_next_token(s);
+ if (tok && tok->type == ISL_TOKEN_TO) {
+ obj.type = isl_obj_map;
+ isl_token_free(tok);
+ if (!next_is_tuple(s)) {
+ bmap = isl_basic_map_reverse(bmap);
+ return obj_read_poly_or_fold(s, bmap, v, n);
+ }
+ bmap = read_tuple(s, bmap, isl_dim_out, v);
+ if (!bmap)
+ goto error;
+ } else {
+ bmap = isl_basic_map_reverse(bmap);
+ if (tok)
+ isl_stream_push_token(s, tok);
+ }
+
+ map = read_optional_disjuncts(s, bmap, v);
+
+ vars_drop(v, v->n - n);
+
+ obj.v = map;
+ return obj;
+error:
+ isl_basic_map_free(bmap);
+ obj.type = isl_obj_none;
+ return obj;
+}
+
+static struct isl_obj to_union(isl_ctx *ctx, struct isl_obj obj)
+{
+ if (obj.type == isl_obj_map) {
+ obj.v = isl_union_map_from_map(obj.v);
+ obj.type = isl_obj_union_map;
+ } else if (obj.type == isl_obj_set) {
+ obj.v = isl_union_set_from_set(obj.v);
+ obj.type = isl_obj_union_set;
+ } else if (obj.type == isl_obj_pw_qpolynomial) {
+ obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
+ obj.type = isl_obj_union_pw_qpolynomial;
+ } else if (obj.type == isl_obj_pw_qpolynomial_fold) {
+ obj.v = isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj.v);
+ obj.type = isl_obj_union_pw_qpolynomial_fold;
+ } else
+ isl_assert(ctx, 0, goto error);
+ return obj;
+error:
+ obj.type->free(obj.v);
+ obj.type = isl_obj_none;
+ return obj;
+}
+
+static struct isl_obj obj_add(struct isl_ctx *ctx,
+ struct isl_obj obj1, struct isl_obj obj2)
+{
+ if (obj1.type == isl_obj_set && obj2.type == isl_obj_union_set)
+ obj1 = to_union(ctx, obj1);
+ if (obj1.type == isl_obj_union_set && obj2.type == isl_obj_set)
+ obj2 = to_union(ctx, obj2);
+ if (obj1.type == isl_obj_map && obj2.type == isl_obj_union_map)
+ obj1 = to_union(ctx, obj1);
+ if (obj1.type == isl_obj_union_map && obj2.type == isl_obj_map)
+ obj2 = to_union(ctx, obj2);
+ if (obj1.type == isl_obj_pw_qpolynomial &&
+ obj2.type == isl_obj_union_pw_qpolynomial)
+ obj1 = to_union(ctx, obj1);
+ if (obj1.type == isl_obj_union_pw_qpolynomial &&
+ obj2.type == isl_obj_pw_qpolynomial)
+ obj2 = to_union(ctx, obj2);
+ if (obj1.type == isl_obj_pw_qpolynomial_fold &&
+ obj2.type == isl_obj_union_pw_qpolynomial_fold)
+ obj1 = to_union(ctx, obj1);
+ if (obj1.type == isl_obj_union_pw_qpolynomial_fold &&
+ obj2.type == isl_obj_pw_qpolynomial_fold)
+ obj2 = to_union(ctx, obj2);
+ isl_assert(ctx, obj1.type == obj2.type, goto error);
+ if (obj1.type == isl_obj_map && !isl_map_has_equal_dim(obj1.v, obj2.v)) {
+ obj1 = to_union(ctx, obj1);
+ obj2 = to_union(ctx, obj2);
+ }
+ if (obj1.type == isl_obj_set && !isl_set_has_equal_dim(obj1.v, obj2.v)) {
+ obj1 = to_union(ctx, obj1);
+ obj2 = to_union(ctx, obj2);
+ }
+ if (obj1.type == isl_obj_pw_qpolynomial &&
+ !isl_pw_qpolynomial_has_equal_dim(obj1.v, obj2.v)) {
+ obj1 = to_union(ctx, obj1);
+ obj2 = to_union(ctx, obj2);
+ }
+ if (obj1.type == isl_obj_pw_qpolynomial_fold &&
+ !isl_pw_qpolynomial_fold_has_equal_dim(obj1.v, obj2.v)) {
+ obj1 = to_union(ctx, obj1);
+ obj2 = to_union(ctx, obj2);
+ }
+ obj1.v = obj1.type->add(obj1.v, obj2.v);
+ return obj1;
+error:
+ obj1.type->free(obj1.v);
+ obj2.type->free(obj2.v);
+ obj1.type = isl_obj_none;
+ obj1.v = NULL;
+ return obj1;
+}
+
+static struct isl_obj obj_read(struct isl_stream *s, int nparam)
+{
+ isl_basic_map *bmap = NULL;
+ struct isl_token *tok;
+ struct vars *v = NULL;
+ struct isl_obj obj = { isl_obj_set, NULL };
+
+ tok = isl_stream_next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
+ }
+ if (tok->type == ISL_TOKEN_VALUE) {
+ struct isl_map *map;
+ isl_stream_push_token(s, tok);
+ map = map_read_polylib(s, nparam);
+ if (!map)
+ goto error;
+ if (isl_map_dim(map, isl_dim_in) > 0)
+ obj.type = isl_obj_map;
+ obj.v = map;
+ return obj;
+ }
+ v = vars_new(s->ctx);
+ if (!v) {
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ bmap = isl_basic_map_alloc(s->ctx, 0, 0, 0, 0, 0, 0);
+ if (tok->type == '[') {
+ isl_stream_push_token(s, tok);
+ bmap = read_tuple(s, bmap, isl_dim_param, v);
+ if (!bmap)
+ goto error;
+ if (nparam >= 0)
+ isl_assert(s->ctx, nparam == v->n, goto error);
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_TO) {
+ isl_stream_error(s, tok, "expecting '->'");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ isl_token_free(tok);
+ tok = isl_stream_next_token(s);
+ } else if (nparam > 0)
+ bmap = isl_basic_map_add(bmap, isl_dim_param, nparam);
+ if (!tok || tok->type != '{') {
+ isl_stream_error(s, tok, "expecting '{'");
+ if (tok)
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ isl_token_free(tok);
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ ;
+ else if (tok->type == ISL_TOKEN_IDENT && !strcmp(tok->u.s, "Sym")) {
+ isl_token_free(tok);
+ if (isl_stream_eat(s, '='))
+ goto error;
+ bmap = read_tuple(s, bmap, isl_dim_param, v);
+ if (!bmap)
+ goto error;
+ if (nparam >= 0)
+ isl_assert(s->ctx, nparam == v->n, goto error);
+ } else if (tok->type == '}') {
+ obj.type = isl_obj_union_set;
+ obj.v = isl_union_set_empty(isl_basic_map_get_dim(bmap));
+ isl_token_free(tok);
+ goto done;
+ } else
+ isl_stream_push_token(s, tok);
+
+ for (;;) {
+ struct isl_obj o;
+ tok = NULL;
+ o = obj_read_body(s, isl_basic_map_copy(bmap), v);
+ if (o.type == isl_obj_none || !o.v)
+ goto error;
+ if (!obj.v)
+ obj = o;
+ else {
+ obj = obj_add(s->ctx, obj, o);
+ if (obj.type == isl_obj_none || !obj.v)
+ goto error;
+ }
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ';')
+ break;
+ isl_token_free(tok);
+ }
+
+ if (tok && tok->type == '}') {
+ isl_token_free(tok);
+ } else {
+ isl_stream_error(s, tok, "unexpected isl_token");
+ if (tok)
+ isl_token_free(tok);
+ goto error;
+ }
+done:
+ vars_free(v);
+ isl_basic_map_free(bmap);
+
+ return obj;
+error:
+ isl_basic_map_free(bmap);
+ obj.type->free(obj.v);
+ if (v)
+ vars_free(v);
+ obj.v = NULL;
+ return obj;
+}
+
+struct isl_obj isl_stream_read_obj(struct isl_stream *s)
+{
+ return obj_read(s, -1);
+}
+
+__isl_give isl_map *isl_stream_read_map(struct isl_stream *s, int nparam)
+{
+ struct isl_obj obj;
+ struct isl_map *map;
+
+ obj = obj_read(s, nparam);
+ if (obj.v)
+ isl_assert(s->ctx, obj.type == isl_obj_map ||
+ obj.type == isl_obj_set, goto error);
+
+ return obj.v;
+error:
+ obj.type->free(obj.v);
+ return NULL;
+}
+
+__isl_give isl_set *isl_stream_read_set(struct isl_stream *s, int nparam)
+{
+ struct isl_obj obj;
+ struct isl_set *set;
+
+ obj = obj_read(s, nparam);
+ if (obj.v)
+ isl_assert(s->ctx, obj.type == isl_obj_set, goto error);
+
+ return obj.v;
+error:
+ obj.type->free(obj.v);
+ return NULL;
+}
+
+__isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s)
+{
+ struct isl_obj obj;
+ isl_union_map *umap;
+
+ obj = obj_read(s, -1);
+ if (obj.type == isl_obj_map) {
+ obj.type = isl_obj_union_map;
+ obj.v = isl_union_map_from_map(obj.v);
+ }
+ if (obj.type == isl_obj_set) {
+ obj.type = isl_obj_union_set;
+ obj.v = isl_union_set_from_set(obj.v);
+ }
+ if (obj.v)
+ isl_assert(s->ctx, obj.type == isl_obj_union_map ||
+ obj.type == isl_obj_union_set, goto error);
+
+ return obj.v;
+error:
+ obj.type->free(obj.v);
+ return NULL;
+}
+
+__isl_give isl_union_set *isl_stream_read_union_set(struct isl_stream *s)
+{
+ struct isl_obj obj;
+ isl_union_set *uset;
+
+ obj = obj_read(s, -1);
+ if (obj.type == isl_obj_set) {
+ obj.type = isl_obj_union_set;
+ obj.v = isl_union_set_from_set(obj.v);
+ }
+ if (obj.v)
+ isl_assert(s->ctx, obj.type == isl_obj_union_set, goto error);
+
+ return obj.v;
+error:
+ obj.type->free(obj.v);
+ return NULL;
+}
+
+static struct isl_basic_map *basic_map_read(struct isl_stream *s, int nparam)
+{
+ struct isl_obj obj;
+ struct isl_map *map;
+ struct isl_basic_map *bmap;
+
+ obj = obj_read(s, nparam);
+ map = obj.v;
+ if (!map)
+ return NULL;
+
+ isl_assert(map->ctx, map->n <= 1, goto error);
+
+ if (map->n == 0)
+ bmap = isl_basic_map_empty_like_map(map);
+ else
+ bmap = isl_basic_map_copy(map->p[0]);
+
+ isl_map_free(map);
+
+ return bmap;
+error:
+ isl_map_free(map);
+ return NULL;
+}
+
+__isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
+ FILE *input, int nparam)
+{
+ struct isl_basic_map *bmap;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
+ return NULL;
+ bmap = basic_map_read(s, nparam);
+ isl_stream_free(s);
+ return bmap;
+}
+
+__isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
+ FILE *input, int nparam)
+{
+ struct isl_basic_map *bmap;
+ bmap = isl_basic_map_read_from_file(ctx, input, nparam);
+ if (!bmap)
+ return NULL;
+ isl_assert(ctx, isl_basic_map_n_in(bmap) == 0, goto error);
+ return (struct isl_basic_set *)bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
+ const char *str, int nparam)
+{
+ struct isl_basic_map *bmap;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ bmap = basic_map_read(s, nparam);
+ isl_stream_free(s);
+ return bmap;
+}
+
+struct isl_basic_set *isl_basic_set_read_from_str(struct isl_ctx *ctx,
+ const char *str, int nparam)
+{
+ struct isl_basic_map *bmap;
+ bmap = isl_basic_map_read_from_str(ctx, str, nparam);
+ if (!bmap)
+ return NULL;
+ isl_assert(ctx, isl_basic_map_n_in(bmap) == 0, goto error);
+ return (struct isl_basic_set *)bmap;
+error:
+ isl_basic_map_free(bmap);
+ return NULL;
+}
+
+__isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
+ FILE *input, int nparam)
+{
+ struct isl_map *map;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
+ return NULL;
+ map = isl_stream_read_map(s, nparam);
+ isl_stream_free(s);
+ return map;
+}
+
+__isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
+ const char *str, int nparam)
+{
+ struct isl_map *map;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ map = isl_stream_read_map(s, nparam);
+ isl_stream_free(s);
+ return map;
+}
+
+__isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
+ FILE *input, int nparam)
+{
+ struct isl_map *map;
+ map = isl_map_read_from_file(ctx, input, nparam);
+ if (!map)
+ return NULL;
+ isl_assert(ctx, isl_map_n_in(map) == 0, goto error);
+ return (struct isl_set *)map;
+error:
+ isl_map_free(map);
+ return NULL;
+}
+
+struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
+ const char *str, int nparam)
+{
+ struct isl_map *map;
+ map = isl_map_read_from_str(ctx, str, nparam);
+ if (!map)
+ return NULL;
+ isl_assert(ctx, isl_map_n_in(map) == 0, goto error);
+ return (struct isl_set *)map;
+error:
+ isl_map_free(map);
+ return NULL;
+}
+
+__isl_give isl_union_map *isl_union_map_read_from_str(struct isl_ctx *ctx,
+ const char *str)
+{
+ isl_union_map *umap;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ umap = isl_stream_read_union_map(s);
+ isl_stream_free(s);
+ return umap;
+}
+
+__isl_give isl_union_set *isl_union_set_read_from_str(struct isl_ctx *ctx,
+ const char *str)
+{
+ isl_union_set *uset;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ uset = isl_stream_read_union_set(s);
+ isl_stream_free(s);
+ return uset;
+}
+
+static __isl_give isl_vec *isl_vec_read_polylib(struct isl_stream *s)
+{
+ struct isl_vec *vec = NULL;
+ struct isl_token *tok;
+ unsigned size;
+ int j;
+
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting vector length");
+ goto error;
+ }
+
+ size = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
+
+ vec = isl_vec_alloc(s->ctx, size);
+
+ for (j = 0; j < size; ++j) {
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting constant value");
+ goto error;
+ }
+ isl_int_set(vec->el[j], tok->u.v);
+ isl_token_free(tok);
+ }
+
+ return vec;
+error:
+ isl_token_free(tok);
+ isl_vec_free(vec);
+ return NULL;
+}
+
+static __isl_give isl_vec *vec_read(struct isl_stream *s,
+ unsigned input_format)
+{
+ if (input_format == ISL_FORMAT_POLYLIB)
+ return isl_vec_read_polylib(s);
+ isl_assert(s->ctx, 0, return NULL);
+}
+
+struct isl_vec *isl_vec_read_from_file(struct isl_ctx *ctx,
+ FILE *input, unsigned input_format)
+{
+ isl_vec *v;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
+ return NULL;
+ v = vec_read(s, input_format);
+ isl_stream_free(s);
+ return v;
+}
+
+__isl_give isl_pw_qpolynomial *isl_stream_read_pw_qpolynomial(
+ struct isl_stream *s)
+{
+ struct isl_obj obj;
+ struct isl_pw_qpolynomial *pwqp;
+
+ obj = obj_read(s, -1);
+ if (obj.v)
+ isl_assert(s->ctx, obj.type == isl_obj_pw_qpolynomial,
+ goto error);
+
+ return obj.v;
+error:
+ obj.type->free(obj.v);
+ return NULL;
+}
+
+__isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_str(isl_ctx *ctx,
+ const char *str)
+{
+ isl_pw_qpolynomial *pwqp;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ pwqp = isl_stream_read_pw_qpolynomial(s);
+ isl_stream_free(s);
+ return pwqp;
+}
projects / platform / upstream / isl.git / blobdiff