/*
* Copyright 2008-2009 Katholieke Universiteit Leuven
* Copyright 2010 INRIA Saclay
+ * Copyright 2012 Ecole Normale Superieure
*
- * Use of this software is governed by the GNU LGPLv2.1 license
+ * Use of this software is governed by the MIT 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
+ * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
*/
#include <ctype.h>
#include <stdio.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_ctx_private.h>
+#include <isl_map_private.h>
+#include <isl/set.h>
+#include <isl/seq.h>
+#include <isl_stream_private.h>
+#include <isl/obj.h>
#include "isl_polynomial_private.h"
+#include <isl/union_map.h>
+#include <isl_mat_private.h>
+#include <isl_aff_private.h>
+#include <isl/list.h>
+#include <isl_val_private.h>
struct variable {
char *name;
{
struct variable *var;
- if (!v)
+ if (!v || !v->v)
return;
v->n -= n;
int pos)
{
struct variable *var;
- var = isl_alloc_type(v->ctx, struct variable);
+ var = isl_calloc_type(v->ctx, struct variable);
if (!var)
goto error;
var->name = strdup(name);
return pos;
}
-static __isl_give isl_basic_map *set_name(__isl_take isl_basic_map *bmap,
- enum isl_dim_type type, unsigned pos, char *name)
+static int vars_add_anon(struct vars *v)
{
- char *prime;
+ v->v = variable_new(v, "", 0, v->n);
- if (!bmap)
- return NULL;
- if (!name)
- return bmap;
+ if (!v->v)
+ return -1;
+ v->n++;
- prime = strchr(name, '\'');
- if (prime)
- *prime = '\0';
- bmap->dim = isl_dim_set_name(bmap->dim, type, pos, name);
- if (prime)
- *prime = '\'';
+ return 0;
+}
- if (!bmap->dim)
+/* Obtain next token, with some preprocessing.
+ * In particular, evaluate expressions of the form x^y,
+ * with x and y values.
+ */
+static struct isl_token *next_token(struct isl_stream *s)
+{
+ struct isl_token *tok, *tok2;
+
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE)
+ return tok;
+ if (!isl_stream_eat_if_available(s, '^'))
+ return tok;
+ tok2 = isl_stream_next_token(s);
+ if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok2, "expecting constant value");
goto error;
+ }
- return bmap;
+ isl_int_pow_ui(tok->u.v, tok->u.v, isl_int_get_ui(tok2->u.v));
+
+ isl_token_free(tok2);
+ return tok;
error:
- isl_basic_map_free(bmap);
+ isl_token_free(tok);
+ isl_token_free(tok2);
+ return NULL;
+}
+
+/* Read an isl_val from "s".
+ *
+ * The following token sequences are recognized
+ *
+ * "infty" -> infty
+ * "-" "infty" -> -infty
+ * "NaN" -> NaN
+ * n "/" d -> n/d
+ * v -> v
+ *
+ * where n, d and v are integer constants.
+ */
+__isl_give isl_val *isl_stream_read_val(struct isl_stream *s)
+{
+ struct isl_token *tok = NULL;
+ struct isl_token *tok2 = NULL;
+ isl_val *val;
+
+ tok = next_token(s);
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
+ }
+ if (tok->type == ISL_TOKEN_INFTY) {
+ isl_token_free(tok);
+ return isl_val_infty(s->ctx);
+ }
+ if (tok->type == '-' &&
+ isl_stream_eat_if_available(s, ISL_TOKEN_INFTY)) {
+ isl_token_free(tok);
+ return isl_val_neginfty(s->ctx);
+ }
+ if (tok->type == ISL_TOKEN_NAN) {
+ isl_token_free(tok);
+ return isl_val_nan(s->ctx);
+ }
+ if (tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting value");
+ goto error;
+ }
+
+ if (isl_stream_eat_if_available(s, '/')) {
+ tok2 = next_token(s);
+ if (!tok2) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ goto error;
+ }
+ if (tok2->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok2, "expecting value");
+ goto error;
+ }
+ val = isl_val_rat_from_isl_int(s->ctx, tok->u.v, tok2->u.v);
+ val = isl_val_normalize(val);
+ } else {
+ val = isl_val_int_from_isl_int(s->ctx, tok->u.v);
+ }
+
+ isl_token_free(tok);
+ isl_token_free(tok2);
+ return val;
+error:
+ isl_token_free(tok);
+ isl_token_free(tok2);
return NULL;
}
+/* Read an isl_val from "str".
+ */
+struct isl_val *isl_val_read_from_str(struct isl_ctx *ctx,
+ const char *str)
+{
+ isl_val *val;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ val = isl_stream_read_val(s);
+ isl_stream_free(s);
+ return val;
+}
+
static int accept_cst_factor(struct isl_stream *s, isl_int *f)
{
struct isl_token *tok;
- tok = isl_stream_next_token(s);
+ tok = next_token(s);
if (!tok || tok->type != ISL_TOKEN_VALUE) {
isl_stream_error(s, tok, "expecting constant value");
goto error;
return -1;
}
-static struct isl_vec *accept_affine(struct isl_stream *s, struct vars *v);
+/* Given an affine expression aff, return an affine expression
+ * for aff % d, with d the next token on the stream, which is
+ * assumed to be a constant.
+ *
+ * We introduce an integer division q = [aff/d] and the result
+ * is set to aff - d q.
+ */
+static __isl_give isl_pw_aff *affine_mod(struct isl_stream *s,
+ struct vars *v, __isl_take isl_pw_aff *aff)
+{
+ struct isl_token *tok;
+ isl_pw_aff *q;
+
+ tok = next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting constant value");
+ goto error;
+ }
+
+ q = isl_pw_aff_copy(aff);
+ q = isl_pw_aff_scale_down(q, tok->u.v);
+ q = isl_pw_aff_floor(q);
+ q = isl_pw_aff_scale(q, tok->u.v);
+
+ aff = isl_pw_aff_sub(aff, q);
+
+ isl_token_free(tok);
+ return aff;
+error:
+ isl_pw_aff_free(aff);
+ isl_token_free(tok);
+ return NULL;
+}
+
+static __isl_give isl_pw_aff *accept_affine(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v);
+static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v);
-static __isl_give isl_vec *accept_affine_factor(struct isl_stream *s,
- struct vars *v)
+static __isl_give isl_pw_aff *accept_minmax(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v)
{
- struct isl_token *tok = NULL;
- isl_vec *aff = NULL;
+ struct isl_token *tok;
+ isl_pw_aff_list *list = NULL;
+ int min;
tok = isl_stream_next_token(s);
+ if (!tok)
+ goto error;
+ min = tok->type == ISL_TOKEN_MIN;
+ isl_token_free(tok);
+
+ if (isl_stream_eat(s, '('))
+ goto error;
+
+ list = accept_affine_list(s, isl_space_copy(dim), v);
+ if (!list)
+ goto error;
+
+ if (isl_stream_eat(s, ')'))
+ goto error;
+
+ isl_space_free(dim);
+ return min ? isl_pw_aff_list_min(list) : isl_pw_aff_list_max(list);
+error:
+ isl_space_free(dim);
+ isl_pw_aff_list_free(list);
+ return NULL;
+}
+
+static __isl_give isl_pw_aff *accept_div(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v)
+{
+ struct isl_token *tok;
+ int f = 0;
+ int c = 0;
+ isl_pw_aff *pwaff = NULL;
+
+ if (isl_stream_eat_if_available(s, ISL_TOKEN_FLOORD))
+ f = 1;
+ else if (isl_stream_eat_if_available(s, ISL_TOKEN_CEILD))
+ c = 1;
+ if (f || c) {
+ if (isl_stream_eat(s, '('))
+ goto error;
+ } else {
+ if (isl_stream_eat(s, '['))
+ goto error;
+ }
+
+ pwaff = accept_affine(s, isl_space_copy(dim), v);
+
+ if (f || c) {
+ if (isl_stream_eat(s, ','))
+ goto error;
+
+ tok = next_token(s);
+ if (!tok)
+ goto error;
+ if (tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expected denominator");
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ isl_pw_aff_scale_down(pwaff, tok->u.v);
+ isl_token_free(tok);
+ }
+
+ if (c)
+ pwaff = isl_pw_aff_ceil(pwaff);
+ else
+ pwaff = isl_pw_aff_floor(pwaff);
+
+ if (f || c) {
+ if (isl_stream_eat(s, ')'))
+ goto error;
+ } else {
+ if (isl_stream_eat(s, ']'))
+ goto error;
+ }
+
+ isl_space_free(dim);
+ return pwaff;
+error:
+ isl_space_free(dim);
+ isl_pw_aff_free(pwaff);
+ return NULL;
+}
+
+static __isl_give isl_pw_aff *accept_affine_factor(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v)
+{
+ struct isl_token *tok = NULL;
+ isl_pw_aff *res = NULL;
+
+ tok = next_token(s);
if (!tok) {
isl_stream_error(s, NULL, "unexpected EOF");
goto error;
}
- if (tok->type == ISL_TOKEN_IDENT) {
+
+ if (tok->type == ISL_TOKEN_AFF) {
+ res = isl_pw_aff_copy(tok->u.pwaff);
+ isl_token_free(tok);
+ } else if (tok->type == ISL_TOKEN_IDENT) {
int n = v->n;
int pos = vars_pos(v, tok->u.s, -1);
+ isl_aff *aff;
+
if (pos < 0)
goto error;
if (pos >= n) {
+ vars_drop(v, v->n - n);
isl_stream_error(s, tok, "unknown identifier");
goto error;
}
- aff = isl_vec_alloc(v->ctx, 1 + v->n);
+ aff = isl_aff_zero_on_domain(isl_local_space_from_space(isl_space_copy(dim)));
if (!aff)
goto error;
- isl_seq_clr(aff->el, aff->size);
- isl_int_set_si(aff->el[1 + pos], 1);
+ isl_int_set_si(aff->v->el[2 + pos], 1);
+ res = isl_pw_aff_from_aff(aff);
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);
+ res = accept_affine_factor(s, isl_space_copy(dim), v);
+ res = isl_pw_aff_scale(res, 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_local_space *ls;
+ isl_aff *aff;
+ ls = isl_local_space_from_space(isl_space_copy(dim));
+ aff = isl_aff_zero_on_domain(ls);
+ aff = isl_aff_add_constant(aff, tok->u.v);
+ res = isl_pw_aff_from_aff(aff);
}
isl_token_free(tok);
} else if (tok->type == '(') {
isl_token_free(tok);
tok = NULL;
- aff = accept_affine(s, v);
- if (!aff)
+ res = accept_affine(s, isl_space_copy(dim), v);
+ if (!res)
goto error;
if (isl_stream_eat(s, ')'))
goto error;
+ } else if (tok->type == '[' ||
+ tok->type == ISL_TOKEN_FLOORD ||
+ tok->type == ISL_TOKEN_CEILD) {
+ isl_stream_push_token(s, tok);
+ tok = NULL;
+ res = accept_div(s, isl_space_copy(dim), v);
+ } else if (tok->type == ISL_TOKEN_MIN || tok->type == ISL_TOKEN_MAX) {
+ isl_stream_push_token(s, tok);
+ tok = NULL;
+ res = accept_minmax(s, isl_space_copy(dim), v);
} else {
isl_stream_error(s, tok, "expecting factor");
goto error;
}
+ if (isl_stream_eat_if_available(s, '%') ||
+ isl_stream_eat_if_available(s, ISL_TOKEN_MOD)) {
+ isl_space_free(dim);
+ return affine_mod(s, v, res);
+ }
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;
+ goto error2;
+ }
+ res = isl_pw_aff_scale(res, f);
+ isl_int_clear(f);
+ }
+ 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 error2;
}
- aff = isl_vec_scale(aff, f);
+ res = isl_pw_aff_scale_down(res, f);
isl_int_clear(f);
}
- return aff;
+ isl_space_free(dim);
+ return res;
error:
isl_token_free(tok);
- isl_vec_free(aff);
+error2:
+ isl_pw_aff_free(res);
+ isl_space_free(dim);
return NULL;
}
-static struct isl_vec *accept_affine(struct isl_stream *s, struct vars *v)
+static __isl_give isl_pw_aff *add_cst(__isl_take isl_pw_aff *pwaff, isl_int v)
+{
+ isl_aff *aff;
+ isl_space *space;
+
+ space = isl_pw_aff_get_domain_space(pwaff);
+ aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
+ aff = isl_aff_add_constant(aff, v);
+
+ return isl_pw_aff_add(pwaff, isl_pw_aff_from_aff(aff));
+}
+
+static __isl_give isl_pw_aff *accept_affine(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v)
{
struct isl_token *tok = NULL;
- struct isl_vec *aff;
+ isl_local_space *ls;
+ isl_pw_aff *res;
int sign = 1;
- aff = isl_vec_alloc(v->ctx, 1 + v->n);
- if (!aff)
- return NULL;
- isl_seq_clr(aff->el, aff->size);
+ ls = isl_local_space_from_space(isl_space_copy(dim));
+ res = isl_pw_aff_from_aff(isl_aff_zero_on_domain(ls));
+ if (!res)
+ goto error;
for (;;) {
- tok = isl_stream_next_token(s);
+ tok = next_token(s);
if (!tok) {
isl_stream_error(s, NULL, "unexpected EOF");
goto error;
isl_token_free(tok);
continue;
}
- if (tok->type == '(' || tok->type == ISL_TOKEN_IDENT) {
- isl_vec *aff2;
+ if (tok->type == '(' || tok->type == '[' ||
+ tok->type == ISL_TOKEN_MIN || tok->type == ISL_TOKEN_MAX ||
+ tok->type == ISL_TOKEN_FLOORD ||
+ tok->type == ISL_TOKEN_CEILD ||
+ tok->type == ISL_TOKEN_IDENT ||
+ tok->type == ISL_TOKEN_AFF) {
+ isl_pw_aff *term;
isl_stream_push_token(s, tok);
tok = NULL;
- aff2 = accept_affine_factor(s, v);
+ term = accept_affine_factor(s, isl_space_copy(dim), v);
if (sign < 0)
- aff2 = isl_vec_scale(aff2, s->ctx->negone);
- aff = isl_vec_add(aff, aff2);
- if (!aff)
+ res = isl_pw_aff_sub(res, term);
+ else
+ res = isl_pw_aff_add(res, term);
+ if (!res)
goto error;
sign = 1;
} else if (tok->type == ISL_TOKEN_VALUE) {
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_add(aff, aff2);
- if (!aff)
+ isl_pw_aff *term;
+ term = accept_affine_factor(s,
+ isl_space_copy(dim), v);
+ term = isl_pw_aff_scale(term, tok->u.v);
+ res = isl_pw_aff_add(res, term);
+ if (!res)
goto error;
} else {
- isl_int_add(aff->el[0], aff->el[0], tok->u.v);
+ res = add_cst(res, tok->u.v);
}
sign = 1;
+ } else {
+ isl_stream_error(s, tok, "unexpected isl_token");
+ isl_stream_push_token(s, tok);
+ isl_pw_aff_free(res);
+ isl_space_free(dim);
+ return NULL;
}
isl_token_free(tok);
- tok = isl_stream_next_token(s);
+ tok = next_token(s);
if (tok && tok->type == '-') {
sign = -sign;
isl_token_free(tok);
}
}
- return aff;
+ isl_space_free(dim);
+ return res;
error:
+ isl_space_free(dim);
isl_token_free(tok);
- isl_vec_free(aff);
+ isl_pw_aff_free(res);
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)
+static int is_comparator(struct isl_token *tok)
{
- 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) {
- struct isl_vec *vec;
- int k;
- if (type == isl_dim_param) {
- isl_stream_error(s, tok,
- "expecting unique identifier");
- goto error;
- }
- isl_stream_push_token(s, tok);
- tok = NULL;
- vec = accept_affine(s, v);
- if (!vec)
- goto error;
- v->v = variable_new(v, "", 0, v->n);
- if (!v->v)
- goto error;
- v->n++;
- bmap = isl_basic_map_add(bmap, type, 1);
- bmap = isl_basic_map_extend_constraints(bmap, 1, 0);
- k = isl_basic_map_alloc_equality(bmap);
- if (k >= 0) {
- isl_seq_cpy(bmap->eq[k], vec->el, vec->size);
- isl_int_set_si(bmap->eq[k][vec->size], -1);
- }
- isl_vec_free(vec);
- if (k < 0)
- goto error;
- } else
- break;
-
- tok = isl_stream_next_token(s);
- if (!tok || tok->type != ',')
- break;
+ if (!tok)
+ return 0;
- isl_token_free(tok);
- i++;
+ switch (tok->type) {
+ case ISL_TOKEN_LT:
+ case ISL_TOKEN_GT:
+ case ISL_TOKEN_LE:
+ case ISL_TOKEN_GE:
+ case ISL_TOKEN_NE:
+ case '=':
+ return 1;
+ default:
+ return 0;
}
- 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)
+static struct isl_map *read_disjuncts(struct isl_stream *s,
+ struct vars *v, __isl_take isl_map *map, int rational);
+static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v, int rational);
+
+/* Accept a ternary operator, given the first argument.
+ */
+static __isl_give isl_pw_aff *accept_ternary(struct isl_stream *s,
+ __isl_take isl_map *cond, struct vars *v, int rational)
{
- struct isl_vec *vec;
- struct isl_mat *mat;
- struct isl_token *tok = NULL;
+ isl_space *dim;
+ isl_pw_aff *pwaff1 = NULL, *pwaff2 = NULL, *pa_cond;
- vec = accept_affine(s, v);
- mat = isl_mat_from_row_vec(vec);
- if (!mat)
+ if (!cond)
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);
+ if (isl_stream_eat(s, '?'))
+ goto error;
- vec = accept_affine(s, v);
- mat = isl_mat_vec_concat(mat, vec);
- if (!mat)
- return NULL;
- }
+ dim = isl_space_wrap(isl_map_get_space(cond));
+ pwaff1 = accept_extended_affine(s, dim, v, rational);
+ if (!pwaff1)
+ goto error;
+
+ if (isl_stream_eat(s, ':'))
+ goto error;
+
+ dim = isl_pw_aff_get_domain_space(pwaff1);
+ pwaff2 = accept_extended_affine(s, dim, v, rational);
+ if (!pwaff1)
+ goto error;
- return mat;
+ pa_cond = isl_set_indicator_function(isl_map_wrap(cond));
+ return isl_pw_aff_cond(pa_cond, pwaff1, pwaff2);
error:
- isl_mat_free(mat);
+ isl_map_free(cond);
+ isl_pw_aff_free(pwaff1);
+ isl_pw_aff_free(pwaff2);
return NULL;
}
-static struct isl_basic_map *add_div_definition(struct isl_stream *s,
- struct vars *v, struct isl_basic_map *bmap, int k)
+/* Accept an affine expression that may involve ternary operators.
+ * We first read an affine expression.
+ * If it is not followed by a comparison operator, we simply return it.
+ * Otherwise, we assume the affine epxression is part of the first
+ * argument of a ternary operator and try to parse that.
+ */
+static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v, int rational)
{
+ isl_space *space;
+ isl_map *cond;
+ isl_pw_aff *pwaff;
struct isl_token *tok;
- int seen_paren = 0;
- struct isl_vec *aff;
+ int line = -1, col = -1;
+ int is_comp;
- if (isl_stream_eat(s, '['))
- goto error;
+ tok = isl_stream_next_token(s);
+ if (tok) {
+ line = tok->line;
+ col = tok->col;
+ isl_stream_push_token(s, tok);
+ }
+
+ pwaff = accept_affine(s, dim, v);
+ if (rational)
+ pwaff = isl_pw_aff_set_rational(pwaff);
+ if (!pwaff)
+ 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);
+ return isl_pw_aff_free(pwaff);
- aff = accept_affine(s, v);
- if (!aff)
- goto error;
+ is_comp = is_comparator(tok);
+ isl_stream_push_token(s, tok);
+ if (!is_comp)
+ return pwaff;
- isl_seq_cpy(bmap->div[k] + 1, aff->el, aff->size);
+ tok = isl_token_new(s->ctx, line, col, 0);
+ if (!tok)
+ return isl_pw_aff_free(pwaff);
+ tok->type = ISL_TOKEN_AFF;
+ tok->u.pwaff = pwaff;
- isl_vec_free(aff);
+ space = isl_pw_aff_get_domain_space(pwaff);
+ cond = isl_map_universe(isl_space_unwrap(space));
- if (seen_paren && isl_stream_eat(s, ')'))
- goto error;
- if (isl_stream_eat(s, '/'))
- goto error;
+ isl_stream_push_token(s, tok);
- tok = isl_stream_next_token(s);
- if (!tok)
- goto error;
- if (tok->type != ISL_TOKEN_VALUE) {
- isl_stream_error(s, tok, "expected denominator");
- isl_stream_push_token(s, tok);
- goto error;
+ cond = read_disjuncts(s, v, cond, rational);
+
+ return accept_ternary(s, cond, v, rational);
+}
+
+static __isl_give isl_map *read_var_def(struct isl_stream *s,
+ __isl_take isl_map *map, enum isl_dim_type type, struct vars *v,
+ int rational)
+{
+ isl_pw_aff *def;
+ int pos;
+ isl_map *def_map;
+
+ if (type == isl_dim_param)
+ pos = isl_map_dim(map, isl_dim_param);
+ else {
+ pos = isl_map_dim(map, isl_dim_in);
+ if (type == isl_dim_out)
+ pos += isl_map_dim(map, isl_dim_out);
+ type = isl_dim_in;
}
- isl_int_set(bmap->div[k][0], tok->u.v);
- isl_token_free(tok);
+ --pos;
- if (isl_stream_eat(s, ']'))
- goto error;
+ def = accept_extended_affine(s, isl_space_wrap(isl_map_get_space(map)),
+ v, rational);
+ def_map = isl_map_from_pw_aff(def);
+ def_map = isl_map_equate(def_map, type, pos, isl_dim_out, 0);
+ def_map = isl_set_unwrap(isl_map_domain(def_map));
+
+ map = isl_map_intersect(map, def_map);
+
+ return map;
+}
- if (isl_basic_map_add_div_constraints(bmap, k) < 0)
+static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
+ __isl_take isl_space *dim, struct vars *v)
+{
+ isl_pw_aff *pwaff;
+ isl_pw_aff_list *list;
+ struct isl_token *tok = NULL;
+
+ pwaff = accept_affine(s, isl_space_copy(dim), v);
+ list = isl_pw_aff_list_from_pw_aff(pwaff);
+ if (!list)
goto error;
- return bmap;
+ 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);
+
+ pwaff = accept_affine(s, isl_space_copy(dim), v);
+ list = isl_pw_aff_list_concat(list,
+ isl_pw_aff_list_from_pw_aff(pwaff));
+ if (!list)
+ goto error;
+ }
+
+ isl_space_free(dim);
+ return list;
error:
- isl_basic_map_free(bmap);
+ isl_space_free(dim);
+ isl_pw_aff_list_free(list);
return NULL;
}
-static struct isl_basic_map *read_defined_var_list(struct isl_stream *s,
- struct vars *v, struct isl_basic_map *bmap)
+static __isl_give isl_map *read_defined_var_list(struct isl_stream *s,
+ struct vars *v, __isl_take isl_map *map, int rational)
{
struct isl_token *tok;
while ((tok = isl_stream_next_token(s)) != NULL) {
- int k;
int p;
int n = v->n;
- unsigned total = isl_basic_map_total_dim(bmap);
if (tok->type != ISL_TOKEN_IDENT)
break;
isl_stream_error(s, tok, "expecting unique identifier");
goto error;
}
- isl_token_free(tok);
-
- 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);
+ map = isl_map_add_dims(map, isl_dim_out, 1);
+ 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);
+ map = read_var_def(s, map, isl_dim_out, v, rational);
tok = isl_stream_next_token(s);
}
if (tok)
isl_stream_push_token(s, tok);
- return bmap;
+ return map;
error:
isl_token_free(tok);
- isl_basic_map_free(bmap);
+ isl_map_free(map);
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)
+static int next_is_tuple(struct isl_stream *s)
{
struct isl_token *tok;
+ int is_tuple;
tok = isl_stream_next_token(s);
- if (!tok || tok->type != '[') {
- isl_stream_error(s, tok, "expecting '['");
- goto error;
+ if (!tok)
+ return 0;
+ if (tok->type == '[') {
+ isl_stream_push_token(s, tok);
+ return 1;
}
- isl_token_free(tok);
- 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;
+ if (tok->type != ISL_TOKEN_IDENT && !tok->is_keyword) {
+ isl_stream_push_token(s, tok);
+ return 0;
}
- isl_token_free(tok);
- return bmap;
-error:
- if (tok)
- isl_token_free(tok);
- isl_basic_map_free(bmap);
- return NULL;
+ is_tuple = isl_stream_next_token_is(s, '[');
+
+ isl_stream_push_token(s, tok);
+
+ return is_tuple;
+}
+
+/* Allocate an initial tuple with zero dimensions and an anonymous,
+ * unstructured space.
+ * A tuple is represented as an isl_multi_pw_aff.
+ * The range space is the space of the tuple.
+ * The domain space is an anonymous space
+ * with a dimension for each variable in the set of variables in "v".
+ * If a given dimension is not defined in terms of earlier dimensions in
+ * the input, then the corresponding isl_pw_aff is set equal to one time
+ * the variable corresponding to the dimension being defined.
+ */
+static __isl_give isl_multi_pw_aff *tuple_alloc(struct vars *v)
+{
+ return isl_multi_pw_aff_alloc(isl_space_alloc(v->ctx, 0, v->n, 0));
+}
+
+/* Is "pa" an expression in term of earlier dimensions?
+ * The alternative is that the dimension is defined to be equal to itself,
+ * meaning that it has a universe domain and an expression that depends
+ * on itself. "i" is the position of the expression in a sequence
+ * of "n" expressions. The final dimensions of "pa" correspond to
+ * these "n" expressions.
+ */
+static int pw_aff_is_expr(__isl_keep isl_pw_aff *pa, int i, int n)
+{
+ isl_aff *aff;
+
+ if (!pa)
+ return -1;
+ if (pa->n != 1)
+ return 1;
+ if (!isl_set_plain_is_universe(pa->p[0].set))
+ return 1;
+
+ aff = pa->p[0].aff;
+ if (isl_int_is_zero(aff->v->el[aff->v->size - n + i]))
+ return 1;
+ return 0;
+}
+
+/* Does the tuple contain any dimensions that are defined
+ * in terms of earlier dimensions?
+ */
+static int tuple_has_expr(__isl_keep isl_multi_pw_aff *tuple)
+{
+ int i, n;
+ int has_expr = 0;
+ isl_pw_aff *pa;
+
+ if (!tuple)
+ return -1;
+ n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
+ for (i = 0; i < n; ++i) {
+ pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
+ has_expr = pw_aff_is_expr(pa, i, n);
+ isl_pw_aff_free(pa);
+ if (has_expr < 0 || has_expr)
+ break;
+ }
+
+ return has_expr;
+}
+
+/* Add a dimension to the given tuple.
+ * The dimension is initially undefined, so it is encoded
+ * as one times itself.
+ */
+static __isl_give isl_multi_pw_aff *tuple_add_dim(
+ __isl_take isl_multi_pw_aff *tuple, struct vars *v)
+{
+ isl_space *space;
+ isl_aff *aff;
+ isl_pw_aff *pa;
+
+ tuple = isl_multi_pw_aff_add_dims(tuple, isl_dim_in, 1);
+ space = isl_multi_pw_aff_get_domain_space(tuple);
+ aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
+ aff = isl_aff_add_coefficient_si(aff, isl_dim_in, v->n, 1);
+ pa = isl_pw_aff_from_aff(aff);
+ tuple = isl_multi_pw_aff_flat_range_product(tuple,
+ isl_multi_pw_aff_from_pw_aff(pa));
+
+ return tuple;
+}
+
+/* Set the name of dimension "pos" in "tuple" to "name".
+ * During printing, we add primes if the same name appears more than once
+ * to distinguish the occurrences. Here, we remove those primes from "name"
+ * before setting the name of the dimension.
+ */
+static __isl_give isl_multi_pw_aff *tuple_set_dim_name(
+ __isl_take isl_multi_pw_aff *tuple, int pos, char *name)
+{
+ char *prime;
+
+ if (!name)
+ return tuple;
+
+ prime = strchr(name, '\'');
+ if (prime)
+ *prime = '\0';
+ tuple = isl_multi_pw_aff_set_dim_name(tuple, isl_dim_set, pos, name);
+ if (prime)
+ *prime = '\'';
+
+ return tuple;
+}
+
+/* Read an affine expression from "s" and replace the definition
+ * of dimension "pos" in "tuple" by this expression.
+ *
+ * accept_extended_affine requires a wrapped space as input.
+ * The domain space of "tuple", on the other hand is an anonymous space,
+ * so we have to adjust the space of the isl_pw_aff before adding it
+ * to "tuple".
+ */
+static __isl_give isl_multi_pw_aff *read_tuple_var_def(struct isl_stream *s,
+ __isl_take isl_multi_pw_aff *tuple, int pos, struct vars *v,
+ int rational)
+{
+ isl_space *space;
+ isl_pw_aff *def;
+
+ space = isl_space_wrap(isl_space_alloc(s->ctx, 0, v->n, 0));
+ def = accept_extended_affine(s, space, v, rational);
+ space = isl_space_set_alloc(s->ctx, 0, v->n);
+ def = isl_pw_aff_reset_domain_space(def, space);
+ tuple = isl_multi_pw_aff_set_pw_aff(tuple, pos, def);
+
+ return tuple;
}
-static struct isl_basic_map *add_constraints(struct isl_stream *s,
- struct vars *v, struct isl_basic_map *bmap);
+/* Read a list of variables and/or affine expressions and return the list
+ * as an isl_multi_pw_aff.
+ * The elements in the list are separated by either "," or "][".
+ * If "comma" is set then only "," is allowed.
+ */
+static __isl_give isl_multi_pw_aff *read_tuple_var_list(struct isl_stream *s,
+ struct vars *v, int rational, int comma)
+{
+ int i = 0;
+ struct isl_token *tok;
+ isl_multi_pw_aff *res;
+
+ res = tuple_alloc(v);
+
+ if (isl_stream_next_token_is(s, ']'))
+ return res;
+
+ while ((tok = next_token(s)) != NULL) {
+ int new_name = 0;
+
+ res = tuple_add_dim(res, v);
+
+ 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 (tok->type == '*') {
+ if (vars_add_anon(v) < 0)
+ goto error;
+ isl_token_free(tok);
+ } else if (new_name) {
+ res = tuple_set_dim_name(res, i, v->v->name);
+ isl_token_free(tok);
+ if (isl_stream_eat_if_available(s, '='))
+ res = read_tuple_var_def(s, res, i, v,
+ rational);
+ } else {
+ isl_stream_push_token(s, tok);
+ tok = NULL;
+ if (vars_add_anon(v) < 0)
+ goto error;
+ res = read_tuple_var_def(s, res, i, v, rational);
+ }
+
+ tok = isl_stream_next_token(s);
+ if (!comma && tok && tok->type == ']' &&
+ isl_stream_next_token_is(s, '[')) {
+ isl_token_free(tok);
+ tok = isl_stream_next_token(s);
+ } else if (!tok || tok->type != ',')
+ break;
+
+ isl_token_free(tok);
+ i++;
+ }
+ if (tok)
+ isl_stream_push_token(s, tok);
+
+ return res;
+error:
+ isl_token_free(tok);
+ return isl_multi_pw_aff_free(res);
+}
-static struct isl_basic_map *add_exists(struct isl_stream *s,
- struct vars *v, struct isl_basic_map *bmap)
+/* Read a tuple and represent it as an isl_multi_pw_aff. See tuple_alloc.
+ */
+static __isl_give isl_multi_pw_aff *read_tuple(struct isl_stream *s,
+ struct vars *v, int rational, int comma)
{
struct isl_token *tok;
- int n = v->n;
- int extra;
- int seen_paren = 0;
- int i;
- unsigned total;
+ char *name = NULL;
+ isl_multi_pw_aff *res = NULL;
tok = isl_stream_next_token(s);
if (!tok)
goto error;
- if (tok->type == '(') {
- seen_paren = 1;
+ if (tok->type == ISL_TOKEN_IDENT || tok->is_keyword) {
+ name = strdup(tok->u.s);
isl_token_free(tok);
+ if (!name)
+ goto error;
} else
isl_stream_push_token(s, tok);
-
- bmap = read_defined_var_list(s, v, bmap);
- if (!bmap)
- goto error;
-
- if (isl_stream_eat(s, ':'))
+ if (isl_stream_eat(s, '['))
goto error;
- bmap = add_constraints(s, v, bmap);
- if (seen_paren && isl_stream_eat(s, ')'))
+ if (next_is_tuple(s)) {
+ isl_multi_pw_aff *out;
+ int n;
+ res = read_tuple(s, v, rational, comma);
+ if (isl_stream_eat(s, ISL_TOKEN_TO))
+ goto error;
+ out = read_tuple(s, v, rational, comma);
+ n = isl_multi_pw_aff_dim(out, isl_dim_out);
+ res = isl_multi_pw_aff_add_dims(res, isl_dim_in, n);
+ res = isl_multi_pw_aff_range_product(res, out);
+ } else
+ res = read_tuple_var_list(s, v, rational, comma);
+ if (isl_stream_eat(s, ']'))
goto error;
- return bmap;
+
+ if (name) {
+ res = isl_multi_pw_aff_set_tuple_name(res, isl_dim_out, name);
+ free(name);
+ }
+
+ return res;
error:
- isl_basic_map_free(bmap);
- return NULL;
+ free(name);
+ return isl_multi_pw_aff_free(res);
}
-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)
+/* Read a tuple from "s" and add it to "map".
+ * The tuple is initially represented as an isl_multi_pw_aff.
+ * We first create the appropriate space in "map" based on the range
+ * space of this isl_multi_pw_aff. Then, we add equalities based
+ * on the affine expressions. These live in an anonymous space,
+ * however, so we first need to reset the space to that of "map".
+ */
+static __isl_give isl_map *read_map_tuple(struct isl_stream *s,
+ __isl_take isl_map *map, enum isl_dim_type type, struct vars *v,
+ int rational, int comma)
{
- int k;
- unsigned len;
- struct isl_ctx *ctx;
+ int i, n;
+ isl_multi_pw_aff *tuple;
+ isl_space *space = NULL;
- if (!bmap)
- return NULL;
- len = 1 + isl_basic_map_total_dim(bmap);
- ctx = bmap->ctx;
+ tuple = read_tuple(s, v, rational, comma);
+ if (!tuple)
+ goto error;
- k = isl_basic_map_alloc_inequality(bmap);
- if (k < 0)
+ n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
+ space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
+ if (!space)
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);
+
+ if (type == isl_dim_param) {
+ if (isl_space_has_tuple_name(space, isl_dim_set) ||
+ isl_space_is_wrapping(space)) {
+ isl_die(s->ctx, isl_error_invalid,
+ "parameter tuples cannot be named or nested",
+ goto error);
+ }
+ map = isl_map_add_dims(map, type, n);
+ for (i = 0; i < n; ++i) {
+ isl_id *id;
+ if (!isl_space_has_dim_name(space, isl_dim_set, i))
+ isl_die(s->ctx, isl_error_invalid,
+ "parameters must be named",
+ goto error);
+ id = isl_space_get_dim_id(space, isl_dim_set, i);
+ map = isl_map_set_dim_id(map, isl_dim_param, i, id);
+ }
+ } else if (type == isl_dim_in) {
+ isl_set *set;
+
+ set = isl_set_universe(isl_space_copy(space));
+ if (rational)
+ set = isl_set_set_rational(set);
+ set = isl_set_intersect_params(set, isl_map_params(map));
+ map = isl_map_from_domain(set);
} else {
- isl_seq_combine(bmap->ineq[k], ctx->one, left,
- ctx->negone, right,
- len);
- isl_basic_map_inequality_to_equality(bmap, k);
+ isl_set *set;
+
+ set = isl_set_universe(isl_space_copy(space));
+ if (rational)
+ set = isl_set_set_rational(set);
+ map = isl_map_from_domain_and_range(isl_map_domain(map), set);
}
- return bmap;
+ for (i = 0; i < n; ++i) {
+ isl_pw_aff *pa;
+ isl_space *space;
+ isl_aff *aff;
+ isl_set *set;
+ isl_map *map_i;
+
+ pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
+ space = isl_pw_aff_get_domain_space(pa);
+ aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
+ aff = isl_aff_add_coefficient_si(aff,
+ isl_dim_in, v->n - n + i, -1);
+ pa = isl_pw_aff_add(pa, isl_pw_aff_from_aff(aff));
+ if (rational)
+ pa = isl_pw_aff_set_rational(pa);
+ set = isl_pw_aff_zero_set(pa);
+ map_i = isl_map_from_range(set);
+ map_i = isl_map_reset_space(map_i, isl_map_get_space(map));
+ map = isl_map_intersect(map, map_i);
+ }
+
+ isl_space_free(space);
+ isl_multi_pw_aff_free(tuple);
+ return map;
error:
- isl_basic_map_free(bmap);
+ isl_space_free(space);
+ isl_multi_pw_aff_free(tuple);
+ isl_map_free(map);
return NULL;
}
-static int is_comparator(struct isl_token *tok)
+static __isl_give isl_set *construct_constraints(
+ __isl_take isl_set *set, int type,
+ __isl_keep isl_pw_aff_list *left, __isl_keep isl_pw_aff_list *right,
+ int rational)
{
- if (!tok)
- return 0;
+ isl_set *cond;
- 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;
+ left = isl_pw_aff_list_copy(left);
+ right = isl_pw_aff_list_copy(right);
+ if (rational) {
+ left = isl_pw_aff_list_set_rational(left);
+ right = isl_pw_aff_list_set_rational(right);
}
+ if (type == ISL_TOKEN_LE)
+ cond = isl_pw_aff_list_le_set(left, right);
+ else if (type == ISL_TOKEN_GE)
+ cond = isl_pw_aff_list_ge_set(left, right);
+ else if (type == ISL_TOKEN_LT)
+ cond = isl_pw_aff_list_lt_set(left, right);
+ else if (type == ISL_TOKEN_GT)
+ cond = isl_pw_aff_list_gt_set(left, right);
+ else if (type == ISL_TOKEN_NE)
+ cond = isl_pw_aff_list_ne_set(left, right);
+ else
+ cond = isl_pw_aff_list_eq_set(left, right);
+
+ return isl_set_intersect(set, cond);
}
-static struct isl_basic_map *add_constraint(struct isl_stream *s,
- struct vars *v, struct isl_basic_map *bmap)
+static __isl_give isl_map *add_constraint(struct isl_stream *s,
+ struct vars *v, __isl_take isl_map *map, int rational)
{
- int i, j;
- unsigned total = isl_basic_map_total_dim(bmap);
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;
+ isl_pw_aff_list *list1 = NULL, *list2 = NULL;
+ isl_set *set;
- bmap = isl_basic_map_cow(bmap);
-
- aff1 = accept_affine_list(s, v);
- if (!aff1)
+ set = isl_map_wrap(map);
+ list1 = accept_affine_list(s, isl_set_get_space(set), v);
+ if (!list1)
goto error;
tok = isl_stream_next_token(s);
if (!is_comparator(tok)) {
tok = NULL;
goto error;
}
- isl_assert(aff1->ctx, aff1->n_col == 1 + total, goto error);
for (;;) {
- aff2 = accept_affine_list(s, v);
- if (!aff2)
+ list2 = accept_affine_list(s, isl_set_get_space(set), v);
+ if (!list2)
goto error;
- isl_assert(aff2->ctx, aff2->n_col == 1 + total, goto error);
-
- 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]);
+
+ set = construct_constraints(set, tok->type, list1, list2,
+ rational);
isl_token_free(tok);
- isl_mat_free(aff1);
- aff1 = aff2;
+ isl_pw_aff_list_free(list1);
+ list1 = list2;
tok = isl_stream_next_token(s);
if (!is_comparator(tok)) {
break;
}
}
- isl_mat_free(aff1);
+ isl_pw_aff_list_free(list1);
- return bmap;
+ return isl_set_unwrap(set);
error:
if (tok)
isl_token_free(tok);
- isl_mat_free(aff1);
- isl_mat_free(aff2);
- isl_basic_map_free(bmap);
+ isl_pw_aff_list_free(list1);
+ isl_pw_aff_list_free(list2);
+ isl_set_free(set);
return NULL;
}
-static struct isl_basic_map *add_constraints(struct isl_stream *s,
- struct vars *v, struct isl_basic_map *bmap)
+static __isl_give isl_map *read_exists(struct isl_stream *s,
+ struct vars *v, __isl_take isl_map *map, int rational)
{
- struct isl_token *tok;
+ int n = v->n;
+ int seen_paren = isl_stream_eat_if_available(s, '(');
- 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;
- }
- if (tok->type != ISL_TOKEN_AND)
- break;
- isl_token_free(tok);
- }
- isl_stream_push_token(s, tok);
+ map = isl_map_from_domain(isl_map_wrap(map));
+ map = read_defined_var_list(s, v, map, rational);
- return bmap;
-error:
- 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)
+ if (isl_stream_eat(s, ':'))
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);
+ map = read_disjuncts(s, v, map, rational);
+ map = isl_set_unwrap(isl_map_domain(map));
+ vars_drop(v, v->n - n);
if (seen_paren && isl_stream_eat(s, ')'))
goto error;
- return bmap;
+ return map;
error:
- isl_basic_map_free(bmap);
+ isl_map_free(map);
return NULL;
}
-static struct isl_map *read_disjuncts(struct isl_stream *s,
- struct vars *v, __isl_take isl_dim *dim)
+/* Parse an expression between parentheses and push the result
+ * back on the stream.
+ *
+ * The parsed expression may be either an affine expression
+ * or a condition. The first type is pushed onto the stream
+ * as an isl_pw_aff, while the second is pushed as an isl_map.
+ *
+ * If the initial token indicates the start of a condition,
+ * we parse it as such.
+ * Otherwise, we first parse an affine expression and push
+ * that onto the stream. If the affine expression covers the
+ * entire expression between parentheses, we return.
+ * Otherwise, we assume that the affine expression is the
+ * start of a condition and continue parsing.
+ */
+static int resolve_paren_expr(struct isl_stream *s,
+ struct vars *v, __isl_take isl_map *map, int rational)
{
- struct isl_token *tok;
- struct isl_map *map;
+ struct isl_token *tok, *tok2;
+ int line, col;
+ isl_pw_aff *pwaff;
tok = isl_stream_next_token(s);
- if (!tok) {
- isl_stream_error(s, NULL, "unexpected EOF");
+ if (!tok || tok->type != '(')
goto error;
- }
- if (tok->type == '}') {
+
+ if (isl_stream_next_token_is(s, '('))
+ if (resolve_paren_expr(s, v, isl_map_copy(map), rational))
+ goto error;
+
+ if (isl_stream_next_token_is(s, ISL_TOKEN_EXISTS) ||
+ isl_stream_next_token_is(s, ISL_TOKEN_NOT) ||
+ isl_stream_next_token_is(s, ISL_TOKEN_TRUE) ||
+ isl_stream_next_token_is(s, ISL_TOKEN_FALSE) ||
+ isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
+ map = read_disjuncts(s, v, map, rational);
+ if (isl_stream_eat(s, ')'))
+ goto error;
+ tok->type = ISL_TOKEN_MAP;
+ tok->u.map = map;
isl_stream_push_token(s, tok);
- return isl_map_universe(dim);
+ return 0;
}
- isl_stream_push_token(s, tok);
- map = isl_map_empty(isl_dim_copy(dim));
- for (;;) {
- struct isl_basic_map *bmap;
- int n = v->n;
+ tok2 = isl_stream_next_token(s);
+ if (!tok2)
+ goto error;
+ line = tok2->line;
+ col = tok2->col;
+ isl_stream_push_token(s, tok2);
+
+ pwaff = accept_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
+ if (!pwaff)
+ goto error;
- bmap = read_disjunct(s, v, isl_dim_copy(dim));
- map = isl_map_union(map, isl_map_from_basic_map(bmap));
+ tok2 = isl_token_new(s->ctx, line, col, 0);
+ if (!tok2)
+ goto error2;
+ tok2->type = ISL_TOKEN_AFF;
+ tok2->u.pwaff = pwaff;
- vars_drop(v, v->n - n);
+ if (isl_stream_eat_if_available(s, ')')) {
+ isl_stream_push_token(s, tok2);
+ isl_token_free(tok);
+ isl_map_free(map);
+ return 0;
+ }
+
+ isl_stream_push_token(s, tok2);
+
+ map = read_disjuncts(s, v, map, rational);
+ if (isl_stream_eat(s, ')'))
+ goto error;
+
+ tok->type = ISL_TOKEN_MAP;
+ tok->u.map = map;
+ isl_stream_push_token(s, tok);
+
+ return 0;
+error2:
+ isl_pw_aff_free(pwaff);
+error:
+ isl_token_free(tok);
+ isl_map_free(map);
+ return -1;
+}
+static __isl_give isl_map *read_conjunct(struct isl_stream *s,
+ struct vars *v, __isl_take isl_map *map, int rational)
+{
+ if (isl_stream_next_token_is(s, '('))
+ if (resolve_paren_expr(s, v, isl_map_copy(map), rational))
+ goto error;
+
+ if (isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
+ struct isl_token *tok;
tok = isl_stream_next_token(s);
- if (!tok || tok->type != ISL_TOKEN_OR)
- break;
+ if (!tok)
+ goto error;
+ isl_map_free(map);
+ map = isl_map_copy(tok->u.map);
isl_token_free(tok);
+ return map;
}
- if (tok)
- isl_stream_push_token(s, tok);
- isl_dim_free(dim);
- return map;
+ if (isl_stream_eat_if_available(s, ISL_TOKEN_EXISTS))
+ return read_exists(s, v, map, rational);
+
+ if (isl_stream_eat_if_available(s, ISL_TOKEN_TRUE))
+ return map;
+
+ if (isl_stream_eat_if_available(s, ISL_TOKEN_FALSE)) {
+ isl_space *dim = isl_map_get_space(map);
+ isl_map_free(map);
+ return isl_map_empty(dim);
+ }
+
+ return add_constraint(s, v, map, rational);
error:
- isl_dim_free(dim);
+ isl_map_free(map);
return NULL;
}
+static __isl_give isl_map *read_conjuncts(struct isl_stream *s,
+ struct vars *v, __isl_take isl_map *map, int rational)
+{
+ isl_map *res;
+ int negate;
+
+ negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
+ res = read_conjunct(s, v, isl_map_copy(map), rational);
+ if (negate)
+ res = isl_map_subtract(isl_map_copy(map), res);
+
+ while (res && isl_stream_eat_if_available(s, ISL_TOKEN_AND)) {
+ isl_map *res_i;
+
+ negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
+ res_i = read_conjunct(s, v, isl_map_copy(map), rational);
+ if (negate)
+ res = isl_map_subtract(res, res_i);
+ else
+ res = isl_map_intersect(res, res_i);
+ }
+
+ isl_map_free(map);
+ return res;
+}
+
+static struct isl_map *read_disjuncts(struct isl_stream *s,
+ struct vars *v, __isl_take isl_map *map, int rational)
+{
+ isl_map *res;
+
+ if (isl_stream_next_token_is(s, '}')) {
+ isl_space *dim = isl_map_get_space(map);
+ isl_map_free(map);
+ return isl_map_universe(dim);
+ }
+
+ res = read_conjuncts(s, v, isl_map_copy(map), rational);
+ while (isl_stream_eat_if_available(s, ISL_TOKEN_OR)) {
+ isl_map *res_i;
+
+ res_i = read_conjuncts(s, v, isl_map_copy(map), rational);
+ res = isl_map_union(res, res_i);
+ }
+
+ isl_map_free(map);
+ return res;
+}
+
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 NULL;
}
-static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s,
- int nparam)
+static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s)
{
int i;
struct isl_token *tok;
int on_new_line;
unsigned in = 0, out, local = 0;
struct isl_basic_map *bmap = NULL;
-
- if (nparam < 0)
- nparam = 0;
+ int nparam = 0;
tok = isl_stream_next_token(s);
if (!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;
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)
return NULL;
}
-static struct isl_map *map_read_polylib(struct isl_stream *s, int nparam)
+static struct isl_map *map_read_polylib(struct isl_stream *s)
{
struct isl_token *tok;
struct isl_token *tok2;
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));
+ }
if (tok2) {
+ isl_stream_error(s, tok2, "unexpected token");
isl_stream_push_token(s, tok2);
isl_stream_push_token(s, tok);
- return isl_map_from_basic_map(basic_map_read_polylib(s, nparam));
+ 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));
+ map = isl_map_from_basic_map(basic_map_read_polylib(s));
- for (i = 1; i < n; ++i)
+ for (i = 1; map && i < n; ++i)
map = isl_map_union(map,
- isl_map_from_basic_map(basic_map_read_polylib(s, nparam)));
+ isl_map_from_basic_map(basic_map_read_polylib(s)));
return map;
}
return pow;
}
-static __isl_give isl_div *read_div(struct isl_stream *s,
- __isl_keep isl_basic_map *bmap, struct vars *v)
-{
- unsigned total = isl_basic_map_total_dim(bmap);
- int k;
-
- bmap = isl_basic_map_copy(bmap);
- 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);
- bmap = add_div_definition(s, v, bmap, k);
-
- return isl_basic_map_div(bmap, k);
-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_pw_qpolynomial *read_term(struct isl_stream *s,
+ __isl_keep isl_map *map, struct vars *v);
-static __isl_give isl_qpolynomial *read_factor(struct isl_stream *s,
- __isl_keep isl_basic_map *bmap, struct vars *v)
+static __isl_give isl_pw_qpolynomial *read_factor(struct isl_stream *s,
+ __isl_keep isl_map *map, struct vars *v)
{
- struct isl_qpolynomial *qp;
+ isl_pw_qpolynomial *pwqp;
struct isl_token *tok;
- tok = isl_stream_next_token(s);
+ tok = 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)
+ pwqp = read_term(s, map, v);
+ if (!pwqp)
return NULL;
if (isl_stream_eat(s, ')'))
goto error;
+ pow = optional_power(s);
+ pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
} else if (tok->type == ISL_TOKEN_VALUE) {
struct isl_token *tok2;
+ isl_qpolynomial *qp;
+
tok2 = isl_stream_next_token(s);
if (tok2 && tok2->type == '/') {
isl_token_free(tok2);
- tok2 = isl_stream_next_token(s);
+ tok2 = 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),
+ qp = isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map),
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),
+ qp = isl_qpolynomial_cst_on_domain(isl_map_get_space(map),
tok->u.v);
}
isl_token_free(tok);
+ pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
} else if (tok->type == ISL_TOKEN_INFTY) {
+ isl_qpolynomial *qp;
isl_token_free(tok);
- qp = isl_qpolynomial_infty(isl_basic_map_get_dim(bmap));
+ qp = isl_qpolynomial_infty_on_domain(isl_map_get_space(map));
+ pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
} else if (tok->type == ISL_TOKEN_NAN) {
+ isl_qpolynomial *qp;
isl_token_free(tok);
- qp = isl_qpolynomial_nan(isl_basic_map_get_dim(bmap));
+ qp = isl_qpolynomial_nan_on_domain(isl_map_get_space(map));
+ pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
} else if (tok->type == ISL_TOKEN_IDENT) {
int n = v->n;
int pos = vars_pos(v, tok->u.s, -1);
int pow;
- isl_token_free(tok);
- if (pos < 0)
- goto error;
+ isl_qpolynomial *qp;
+ if (pos < 0) {
+ isl_token_free(tok);
+ return NULL;
+ }
if (pos >= n) {
+ vars_drop(v, v->n - 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_pow(isl_basic_map_get_dim(bmap), pos, pow);
+ qp = isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map), pos, pow);
+ pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
} else if (tok->type == '[') {
- isl_div *div;
+ isl_pw_aff *pwaff;
int pow;
isl_stream_push_token(s, tok);
- div = read_div(s, bmap, v);
+ pwaff = accept_div(s, isl_map_get_space(map), v);
pow = optional_power(s);
- qp = isl_qpolynomial_div_pow(div, pow);
+ pwqp = isl_pw_qpolynomial_from_pw_aff(pwaff);
+ pwqp = isl_pw_qpolynomial_pow(pwqp, 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);
+ pwqp = read_factor(s, map, v);
+ pwqp = isl_pw_qpolynomial_neg(pwqp);
} else {
isl_stream_error(s, tok, "unexpected isl_token");
isl_stream_push_token(s, tok);
if (isl_stream_eat_if_available(s, '*') ||
isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
- struct isl_qpolynomial *qp2;
+ isl_pw_qpolynomial *pwqp2;
- qp2 = read_factor(s, bmap, v);
- qp = isl_qpolynomial_mul(qp, qp2);
+ pwqp2 = read_factor(s, map, v);
+ pwqp = isl_pw_qpolynomial_mul(pwqp, pwqp2);
}
- return qp;
+ return pwqp;
error:
- isl_qpolynomial_free(qp);
+ isl_pw_qpolynomial_free(pwqp);
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_pw_qpolynomial *read_term(struct isl_stream *s,
+ __isl_keep isl_map *map, struct vars *v)
{
struct isl_token *tok;
- struct isl_qpolynomial *qp;
+ isl_pw_qpolynomial *pwqp;
- qp = read_factor(s, bmap, v);
+ pwqp = read_factor(s, map, v);
for (;;) {
- tok = isl_stream_next_token(s);
+ tok = next_token(s);
if (!tok)
- return qp;
+ return pwqp;
if (tok->type == '+') {
- struct isl_qpolynomial *qp2;
+ isl_pw_qpolynomial *pwqp2;
isl_token_free(tok);
- qp2 = read_factor(s, bmap, v);
- qp = isl_qpolynomial_add(qp, qp2);
+ pwqp2 = read_factor(s, map, v);
+ pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
} else if (tok->type == '-') {
- struct isl_qpolynomial *qp2;
+ isl_pw_qpolynomial *pwqp2;
isl_token_free(tok);
- qp2 = read_factor(s, bmap, v);
- qp = isl_qpolynomial_sub(qp, qp2);
+ pwqp2 = read_factor(s, map, v);
+ pwqp = isl_pw_qpolynomial_sub(pwqp, pwqp2);
} else if (tok->type == ISL_TOKEN_VALUE &&
isl_int_is_neg(tok->u.v)) {
- struct isl_qpolynomial *qp2;
+ isl_pw_qpolynomial *pwqp2;
- qp2 = isl_qpolynomial_cst(isl_basic_map_get_dim(bmap),
- tok->u.v);
- isl_token_free(tok);
- qp = isl_qpolynomial_add(qp, qp2);
+ isl_stream_push_token(s, tok);
+ pwqp2 = read_factor(s, map, v);
+ pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
} else {
isl_stream_push_token(s, tok);
break;
}
}
- return qp;
+ return pwqp;
}
static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
- __isl_take isl_basic_map *bmap, struct vars *v)
+ __isl_take isl_map *map, struct vars *v, int rational)
{
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 == ':') {
+ if (tok->type == ':' ||
+ (tok->type == ISL_TOKEN_OR && !strcmp(tok->u.s, "|"))) {
isl_token_free(tok);
- map = isl_map_intersect(map,
- read_disjuncts(s, v, isl_basic_map_get_dim(bmap)));
+ map = read_disjuncts(s, v, map, rational);
} else
isl_stream_push_token(s, tok);
- isl_basic_map_free(bmap);
-
return map;
error:
- isl_basic_map_free(bmap);
+ isl_map_free(map);
return NULL;
}
static struct isl_obj obj_read_poly(struct isl_stream *s,
- __isl_take isl_basic_map *bmap, struct vars *v, int n)
+ __isl_take isl_map *map, 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;
+ isl_pw_qpolynomial *pwqp;
struct isl_set *set;
- bmap = isl_basic_map_reverse(bmap);
+ pwqp = read_term(s, map, v);
+ map = read_optional_disjuncts(s, map, v, 0);
+ set = isl_map_range(map);
- qp = read_term(s, bmap, v);
- map = read_optional_disjuncts(s, bmap, v);
- set = isl_set_from_map(map);
-
- pwqp = isl_pw_qpolynomial_alloc(set, qp);
+ pwqp = isl_pw_qpolynomial_intersect_domain(pwqp, set);
vars_drop(v, v->n - n);
return obj;
}
+static struct isl_obj obj_read_poly_or_fold(struct isl_stream *s,
+ __isl_take isl_set *set, struct vars *v, int n)
+{
+ struct isl_obj obj = { isl_obj_pw_qpolynomial_fold, NULL };
+ isl_pw_qpolynomial *pwqp;
+ isl_pw_qpolynomial_fold *pwf = NULL;
+
+ if (!isl_stream_eat_if_available(s, ISL_TOKEN_MAX))
+ return obj_read_poly(s, set, v, n);
+
+ if (isl_stream_eat(s, '('))
+ goto error;
+
+ pwqp = read_term(s, set, v);
+ pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max, pwqp);
+
+ while (isl_stream_eat_if_available(s, ',')) {
+ isl_pw_qpolynomial_fold *pwf_i;
+ pwqp = read_term(s, set, v);
+ pwf_i = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max,
+ pwqp);
+ pwf = isl_pw_qpolynomial_fold_fold(pwf, pwf_i);
+ }
+
+ if (isl_stream_eat(s, ')'))
+ goto error;
+
+ set = read_optional_disjuncts(s, set, v, 0);
+ pwf = isl_pw_qpolynomial_fold_intersect_domain(pwf, set);
+
+ vars_drop(v, v->n - n);
+
+ obj.v = pwf;
+ return obj;
+error:
+ isl_set_free(set);
+ isl_pw_qpolynomial_fold_free(pwf);
+ obj.type = isl_obj_none;
+ return obj;
+}
+
+static int is_rational(struct isl_stream *s)
+{
+ struct isl_token *tok;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ return 0;
+ if (tok->type == ISL_TOKEN_RAT && isl_stream_next_token_is(s, ':')) {
+ isl_token_free(tok);
+ isl_stream_eat(s, ':');
+ return 1;
+ }
+
+ isl_stream_push_token(s, tok);
+
+ return 0;
+}
+
static struct isl_obj obj_read_body(struct isl_stream *s,
- __isl_take isl_basic_map *bmap, struct vars *v, isl_obj_type type)
+ __isl_take isl_map *map, struct vars *v)
{
- struct isl_map *map = NULL;
struct isl_token *tok;
- struct isl_obj obj = { type, NULL };
+ struct isl_obj obj = { isl_obj_set, NULL };
int n = v->n;
+ int rational;
- if (!isl_stream_next_token_is(s, '['))
- return obj_read_poly(s, bmap, v, n);
+ rational = is_rational(s);
+ if (rational)
+ map = isl_map_set_rational(map);
- bmap = read_tuple(s, bmap, isl_dim_in, v);
- if (!bmap)
+ if (isl_stream_next_token_is(s, ':')) {
+ obj.type = isl_obj_set;
+ obj.v = read_optional_disjuncts(s, map, v, rational);
+ return obj;
+ }
+
+ if (!next_is_tuple(s))
+ return obj_read_poly_or_fold(s, map, v, n);
+
+ map = read_map_tuple(s, map, isl_dim_in, v, rational, 0);
+ if (!map)
goto error;
tok = isl_stream_next_token(s);
- if (tok && tok->type == ISL_TOKEN_TO) {
+ if (!tok)
+ goto error;
+ if (tok->type == ISL_TOKEN_TO) {
obj.type = isl_obj_map;
isl_token_free(tok);
- tok = isl_stream_next_token(s);
- if (tok && tok->type != '[') {
- isl_stream_push_token(s, tok);
- return obj_read_poly(s, bmap, v, n);
+ if (!next_is_tuple(s)) {
+ isl_set *set = isl_map_domain(map);
+ return obj_read_poly_or_fold(s, set, v, n);
}
- isl_stream_push_token(s, tok);
- bmap = read_tuple(s, bmap, isl_dim_out, v);
- if (!bmap)
+ map = read_map_tuple(s, map, isl_dim_out, v, rational, 0);
+ if (!map)
goto error;
} else {
- bmap = isl_basic_map_reverse(bmap);
- if (tok)
- isl_stream_push_token(s, tok);
+ map = isl_map_domain(map);
+ isl_stream_push_token(s, tok);
}
- map = read_optional_disjuncts(s, bmap, v);
+ map = read_optional_disjuncts(s, map, v, rational);
vars_drop(v, v->n - n);
obj.v = map;
return obj;
error:
- isl_basic_map_free(bmap);
+ isl_map_free(map);
+ 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_space(obj1.v, obj2.v)) {
+ obj1 = to_union(ctx, obj1);
+ obj2 = to_union(ctx, obj2);
+ }
+ if (obj1.type == isl_obj_set && !isl_set_has_equal_space(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_space(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_space(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:
return obj1;
}
-static struct isl_obj obj_read(struct isl_stream *s, int nparam)
+static struct isl_obj obj_read(struct isl_stream *s)
{
- struct isl_basic_map *bmap = NULL;
+ isl_map *map = NULL;
struct isl_token *tok;
struct vars *v = NULL;
struct isl_obj obj = { isl_obj_set, NULL };
- tok = isl_stream_next_token(s);
+ tok = next_token(s);
if (!tok) {
isl_stream_error(s, NULL, "unexpected EOF");
goto error;
}
if (tok->type == ISL_TOKEN_VALUE) {
+ struct isl_token *tok2;
struct isl_map *map;
+
+ tok2 = isl_stream_next_token(s);
+ if (!tok2 || tok2->type != ISL_TOKEN_VALUE ||
+ isl_int_is_neg(tok2->u.v)) {
+ if (tok2)
+ isl_stream_push_token(s, tok2);
+ obj.type = isl_obj_int;
+ obj.v = isl_int_obj_alloc(s->ctx, tok->u.v);
+ isl_token_free(tok);
+ return obj;
+ }
+ isl_stream_push_token(s, tok2);
isl_stream_push_token(s, tok);
- map = map_read_polylib(s, nparam);
+ map = map_read_polylib(s);
if (!map)
goto error;
- if (isl_map_dim(map, isl_dim_in) > 0)
+ if (isl_map_may_be_set(map))
+ obj.v = isl_map_range(map);
+ else {
obj.type = isl_obj_map;
- obj.v = map;
+ obj.v = map;
+ }
return obj;
}
v = vars_new(s->ctx);
- bmap = isl_basic_map_alloc(s->ctx, 0, 0, 0, 0, 0, 0);
+ if (!v) {
+ isl_stream_push_token(s, tok);
+ goto error;
+ }
+ map = isl_map_universe(isl_space_params_alloc(s->ctx, 0));
if (tok->type == '[') {
isl_stream_push_token(s, tok);
- bmap = read_tuple(s, bmap, isl_dim_param, v);
- if (!bmap)
+ map = read_map_tuple(s, map, isl_dim_param, v, 0, 0);
+ if (!map)
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 '->'");
}
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_token_free(tok);
if (isl_stream_eat(s, '='))
goto error;
- bmap = read_tuple(s, bmap, isl_dim_param, v);
- if (!bmap)
+ map = read_map_tuple(s, map, isl_dim_param, v, 0, 1);
+ if (!map)
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_map_get_space(map));
+ 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, obj.type);
- if (o.type == isl_obj_none)
- break;
+ o = obj_read_body(s, isl_map_copy(map), 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)
- break;
+ 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 (isl_stream_next_token_is(s, '}')) {
+ tok = isl_stream_next_token(s);
+ break;
+ }
}
if (tok && tok->type == '}') {
isl_token_free(tok);
goto error;
}
+done:
vars_free(v);
- isl_basic_map_free(bmap);
+ isl_map_free(map);
return obj;
error:
- isl_basic_map_free(bmap);
+ isl_map_free(map);
obj.type->free(obj.v);
if (v)
vars_free(v);
struct isl_obj isl_stream_read_obj(struct isl_stream *s)
{
- return obj_read(s, -1);
+ return obj_read(s);
}
-__isl_give isl_map *isl_stream_read_map(struct isl_stream *s, int nparam)
+__isl_give isl_map *isl_stream_read_map(struct isl_stream *s)
{
struct isl_obj obj;
- struct isl_map *map;
- obj = obj_read(s, nparam);
+ obj = obj_read(s);
if (obj.v)
isl_assert(s->ctx, obj.type == isl_obj_map ||
obj.type == isl_obj_set, goto error);
+
+ if (obj.type == isl_obj_set)
+ obj.v = isl_map_from_range(obj.v);
return obj.v;
error:
return NULL;
}
-__isl_give isl_set *isl_stream_read_set(struct isl_stream *s, int nparam)
+__isl_give isl_set *isl_stream_read_set(struct isl_stream *s)
{
struct isl_obj obj;
- struct isl_set *set;
- obj = obj_read(s, nparam);
- if (obj.v)
+ obj = obj_read(s);
+ if (obj.v) {
+ if (obj.type == isl_obj_map && isl_map_may_be_set(obj.v)) {
+ obj.v = isl_map_range(obj.v);
+ obj.type = isl_obj_set;
+ }
isl_assert(s->ctx, obj.type == isl_obj_set, goto error);
+ }
return obj.v;
error:
return NULL;
}
-static struct isl_basic_map *basic_map_read(struct isl_stream *s, int nparam)
+__isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s)
{
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);
+ obj = obj_read(s);
+ 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 && obj.type == isl_obj_union_set &&
+ isl_union_set_is_empty(obj.v))
+ obj.type = isl_obj_union_map;
+ if (obj.v && obj.type != isl_obj_union_map)
+ isl_die(s->ctx, isl_error_invalid, "invalid input", goto error);
- return bmap;
+ return obj.v;
error:
- isl_map_free(map);
+ 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;
+
+ obj = obj_read(s);
+ 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 __isl_give isl_basic_map *basic_map_read(struct isl_stream *s)
+{
+ struct isl_obj obj;
+ struct isl_map *map;
+ struct isl_basic_map *bmap;
+
+ obj = obj_read(s);
+ 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;
+}
+
+static __isl_give isl_basic_set *basic_set_read(struct isl_stream *s)
+{
+ isl_basic_map *bmap;
+ bmap = basic_map_read(s);
+ if (!bmap)
+ return NULL;
+ if (!isl_basic_map_may_be_set(bmap))
+ isl_die(s->ctx, isl_error_invalid,
+ "input is not a set", goto error);
+ return isl_basic_map_range(bmap);
+error:
+ isl_basic_map_free(bmap);
return NULL;
}
__isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
- FILE *input, int nparam)
+ FILE *input)
{
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);
+ bmap = basic_map_read(s);
isl_stream_free(s);
return bmap;
}
__isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
- FILE *input, int nparam)
+ FILE *input)
{
- struct isl_basic_map *bmap;
- bmap = isl_basic_map_read_from_file(ctx, input, nparam);
- if (!bmap)
+ isl_basic_set *bset;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
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;
+ bset = basic_set_read(s);
+ isl_stream_free(s);
+ return bset;
}
struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
- const char *str, int nparam)
+ const char *str)
{
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);
+ bmap = basic_map_read(s);
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)
+ const char *str)
{
- struct isl_basic_map *bmap;
- bmap = isl_basic_map_read_from_str(ctx, str, nparam);
- if (!bmap)
+ isl_basic_set *bset;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
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;
+ bset = basic_set_read(s);
+ isl_stream_free(s);
+ return bset;
}
__isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
- FILE *input, int nparam)
+ FILE *input)
{
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);
+ map = isl_stream_read_map(s);
isl_stream_free(s);
return map;
}
__isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
- const char *str, int nparam)
+ const char *str)
{
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);
+ map = isl_stream_read_map(s);
isl_stream_free(s);
return map;
}
__isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
- FILE *input, int nparam)
+ FILE *input)
{
- struct isl_map *map;
- map = isl_map_read_from_file(ctx, input, nparam);
- if (!map)
+ isl_set *set;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
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;
+ set = isl_stream_read_set(s);
+ isl_stream_free(s);
+ return set;
}
struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
- const char *str, int nparam)
+ const char *str)
{
- struct isl_map *map;
- map = isl_map_read_from_str(ctx, str, nparam);
- if (!map)
+ isl_set *set;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
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;
+ set = isl_stream_read_set(s);
+ isl_stream_free(s);
+ return set;
}
-static char *next_line(FILE *input, char *line, unsigned len)
+__isl_give isl_union_map *isl_union_map_read_from_file(isl_ctx *ctx,
+ FILE *input)
{
- char *p;
+ isl_union_map *umap;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
+ return NULL;
+ umap = isl_stream_read_union_map(s);
+ isl_stream_free(s);
+ return umap;
+}
- do {
- if (!(p = fgets(line, len, input)))
- return NULL;
- while (isspace(*p) && *p != '\n')
- ++p;
- } while (*p == '#' || *p == '\n');
+__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;
+}
- return p;
+__isl_give isl_union_set *isl_union_set_read_from_file(isl_ctx *ctx,
+ FILE *input)
+{
+ isl_union_set *uset;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
+ return NULL;
+ uset = isl_stream_read_union_set(s);
+ isl_stream_free(s);
+ return uset;
}
-static struct isl_vec *isl_vec_read_from_file_polylib(struct isl_ctx *ctx,
- FILE *input)
+__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;
- char line[1024];
- char val[1024];
- char *p;
+ struct isl_token *tok;
unsigned size;
int j;
- int n;
- int offset;
- isl_assert(ctx, next_line(input, line, sizeof(line)), return NULL);
- isl_assert(ctx, sscanf(line, "%u", &size) == 1, return NULL);
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ISL_TOKEN_VALUE) {
+ isl_stream_error(s, tok, "expecting vector length");
+ goto error;
+ }
- vec = isl_vec_alloc(ctx, size);
+ size = isl_int_get_si(tok->u.v);
+ isl_token_free(tok);
- p = next_line(input, line, sizeof(line));
- isl_assert(ctx, p, goto error);
+ vec = isl_vec_alloc(s->ctx, size);
for (j = 0; j < size; ++j) {
- n = sscanf(p, "%s%n", val, &offset);
- isl_assert(ctx, n != 0, goto error);
- isl_int_read(vec->el[j], val);
- p += offset;
+ 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;
}
-struct isl_vec *isl_vec_read_from_file(struct isl_ctx *ctx,
- FILE *input, unsigned input_format)
+static __isl_give isl_vec *vec_read(struct isl_stream *s)
{
- if (input_format == ISL_FORMAT_POLYLIB)
- return isl_vec_read_from_file_polylib(ctx, input);
- else
- isl_assert(ctx, 0, return NULL);
+ return isl_vec_read_polylib(s);
+}
+
+__isl_give isl_vec *isl_vec_read_from_file(isl_ctx *ctx, FILE *input)
+{
+ isl_vec *v;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
+ return NULL;
+ v = vec_read(s);
+ 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);
+ obj = obj_read(s);
if (obj.v)
isl_assert(s->ctx, obj.type == isl_obj_pw_qpolynomial,
goto 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;
+}
+
+__isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_file(isl_ctx *ctx,
+ FILE *input)
+{
+ isl_pw_qpolynomial *pwqp;
+ struct isl_stream *s = isl_stream_new_file(ctx, input);
+ if (!s)
+ return NULL;
+ pwqp = isl_stream_read_pw_qpolynomial(s);
+ isl_stream_free(s);
+ return pwqp;
+}
+
+/* Is the next token an identifer not in "v"?
+ */
+static int next_is_fresh_ident(struct isl_stream *s, struct vars *v)
+{
+ int n = v->n;
+ int fresh;
+ struct isl_token *tok;
+
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ return 0;
+ fresh = tok->type == ISL_TOKEN_IDENT && vars_pos(v, tok->u.s, -1) >= n;
+ isl_stream_push_token(s, tok);
+
+ vars_drop(v, v->n - n);
+
+ return fresh;
+}
+
+/* First read the domain of the affine expression, which may be
+ * a parameter space or a set.
+ * The tricky part is that we don't know if the domain is a set or not,
+ * so when we are trying to read the domain, we may actually be reading
+ * the affine expression itself (defined on a parameter domains)
+ * If the tuple we are reading is named, we assume it's the domain.
+ * Also, if inside the tuple, the first thing we find is a nested tuple
+ * or a new identifier, we again assume it's the domain.
+ * Otherwise, we assume we are reading an affine expression.
+ */
+static __isl_give isl_set *read_aff_domain(struct isl_stream *s,
+ __isl_take isl_set *dom, struct vars *v)
+{
+ struct isl_token *tok;
+
+ tok = isl_stream_next_token(s);
+ if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
+ isl_stream_push_token(s, tok);
+ return read_map_tuple(s, dom, isl_dim_set, v, 1, 0);
+ }
+ if (!tok || tok->type != '[') {
+ isl_stream_error(s, tok, "expecting '['");
+ goto error;
+ }
+ if (next_is_tuple(s) || next_is_fresh_ident(s, v)) {
+ isl_stream_push_token(s, tok);
+ dom = read_map_tuple(s, dom, isl_dim_set, v, 1, 0);
+ } else
+ isl_stream_push_token(s, tok);
+
+ return dom;
+error:
+ if (tok)
+ isl_stream_push_token(s, tok);
+ isl_set_free(dom);
+ return NULL;
+}
+
+/* Read an affine expression from "s".
+ */
+__isl_give isl_aff *isl_stream_read_aff(struct isl_stream *s)
+{
+ isl_aff *aff;
+ isl_multi_aff *ma;
+
+ ma = isl_stream_read_multi_aff(s);
+ if (!ma)
+ return NULL;
+ if (isl_multi_aff_dim(ma, isl_dim_out) != 1)
+ isl_die(s->ctx, isl_error_invalid,
+ "expecting single affine expression",
+ goto error);
+
+ aff = isl_multi_aff_get_aff(ma, 0);
+ isl_multi_aff_free(ma);
+ return aff;
+error:
+ isl_multi_aff_free(ma);
+ return NULL;
+}
+
+/* Read a piecewise affine expression from "s" with domain (space) "dom".
+ */
+static __isl_give isl_pw_aff *read_pw_aff_with_dom(struct isl_stream *s,
+ __isl_take isl_set *dom, struct vars *v)
+{
+ isl_pw_aff *pwaff = NULL;
+
+ if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
+ goto error;
+
+ if (isl_stream_eat(s, '['))
+ goto error;
+
+ pwaff = accept_affine(s, isl_set_get_space(dom), v);
+
+ if (isl_stream_eat(s, ']'))
+ goto error;
+
+ dom = read_optional_disjuncts(s, dom, v, 0);
+ pwaff = isl_pw_aff_intersect_domain(pwaff, dom);
+
+ return pwaff;
+error:
+ isl_set_free(dom);
+ isl_pw_aff_free(pwaff);
+ return NULL;
+}
+
+__isl_give isl_pw_aff *isl_stream_read_pw_aff(struct isl_stream *s)
+{
+ struct vars *v;
+ isl_set *dom = NULL;
+ isl_set *aff_dom;
+ isl_pw_aff *pa = NULL;
+ int n;
+
+ v = vars_new(s->ctx);
+ if (!v)
+ return NULL;
+
+ dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
+ if (next_is_tuple(s)) {
+ dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
+ if (isl_stream_eat(s, ISL_TOKEN_TO))
+ goto error;
+ }
+ if (isl_stream_eat(s, '{'))
+ goto error;
+
+ n = v->n;
+ aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
+ pa = read_pw_aff_with_dom(s, aff_dom, v);
+ vars_drop(v, v->n - n);
+
+ while (isl_stream_eat_if_available(s, ';')) {
+ isl_pw_aff *pa_i;
+
+ n = v->n;
+ aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
+ pa_i = read_pw_aff_with_dom(s, aff_dom, v);
+ vars_drop(v, v->n - n);
+
+ pa = isl_pw_aff_union_add(pa, pa_i);
+ }
+
+ if (isl_stream_eat(s, '}'))
+ goto error;
+
+ vars_free(v);
+ isl_set_free(dom);
+ return pa;
+error:
+ vars_free(v);
+ isl_set_free(dom);
+ isl_pw_aff_free(pa);
+ return NULL;
+}
+
+__isl_give isl_aff *isl_aff_read_from_str(isl_ctx *ctx, const char *str)
+{
+ isl_aff *aff;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ aff = isl_stream_read_aff(s);
+ isl_stream_free(s);
+ return aff;
+}
+
+__isl_give isl_pw_aff *isl_pw_aff_read_from_str(isl_ctx *ctx, const char *str)
+{
+ isl_pw_aff *pa;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ pa = isl_stream_read_pw_aff(s);
+ isl_stream_free(s);
+ return pa;
+}
+
+/* Read an isl_pw_multi_aff from "s".
+ * We currently read a generic object and if it turns out to be a set or
+ * a map, we convert that to an isl_pw_multi_aff.
+ * It would be more efficient if we were to construct the isl_pw_multi_aff
+ * directly.
+ */
+__isl_give isl_pw_multi_aff *isl_stream_read_pw_multi_aff(struct isl_stream *s)
+{
+ struct isl_obj obj;
+
+ obj = obj_read(s);
+ if (!obj.v)
+ return NULL;
+
+ if (obj.type == isl_obj_map)
+ return isl_pw_multi_aff_from_map(obj.v);
+ if (obj.type == isl_obj_set)
+ return isl_pw_multi_aff_from_set(obj.v);
+
+ obj.type->free(obj.v);
+ isl_die(s->ctx, isl_error_invalid, "unexpected object type",
+ return NULL);
+}
+
+__isl_give isl_pw_multi_aff *isl_pw_multi_aff_read_from_str(isl_ctx *ctx,
+ const char *str)
+{
+ isl_pw_multi_aff *pma;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ pma = isl_stream_read_pw_multi_aff(s);
+ isl_stream_free(s);
+ return pma;
+}
+
+/* Read an isl_union_pw_multi_aff from "s".
+ * We currently read a generic object and if it turns out to be a set or
+ * a map, we convert that to an isl_union_pw_multi_aff.
+ * It would be more efficient if we were to construct
+ * the isl_union_pw_multi_aff directly.
+ */
+__isl_give isl_union_pw_multi_aff *isl_stream_read_union_pw_multi_aff(
+ struct isl_stream *s)
+{
+ struct isl_obj obj;
+
+ obj = obj_read(s);
+ if (!obj.v)
+ return NULL;
+
+ if (obj.type == isl_obj_map || obj.type == isl_obj_set)
+ obj = to_union(s->ctx, obj);
+ if (obj.type == isl_obj_union_map)
+ return isl_union_pw_multi_aff_from_union_map(obj.v);
+ if (obj.type == isl_obj_union_set)
+ return isl_union_pw_multi_aff_from_union_set(obj.v);
+
+ obj.type->free(obj.v);
+ isl_die(s->ctx, isl_error_invalid, "unexpected object type",
+ return NULL);
+}
+
+/* Read an isl_union_pw_multi_aff from "str".
+ */
+__isl_give isl_union_pw_multi_aff *isl_union_pw_multi_aff_read_from_str(
+ isl_ctx *ctx, const char *str)
+{
+ isl_union_pw_multi_aff *upma;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ upma = isl_stream_read_union_pw_multi_aff(s);
+ isl_stream_free(s);
+ return upma;
+}
+
+/* Assuming "pa" represents a single affine expression defined on a universe
+ * domain, extract this affine expression.
+ */
+static __isl_give isl_aff *aff_from_pw_aff(__isl_take isl_pw_aff *pa)
+{
+ isl_aff *aff;
+
+ if (!pa)
+ return NULL;
+ if (pa->n != 1)
+ isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
+ "expecting single affine expression",
+ goto error);
+ if (!isl_set_plain_is_universe(pa->p[0].set))
+ isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
+ "expecting universe domain",
+ goto error);
+
+ aff = isl_aff_copy(pa->p[0].aff);
+ isl_pw_aff_free(pa);
+ return aff;
+error:
+ isl_pw_aff_free(pa);
+ return NULL;
+}
+
+/* Read a multi-affine expression from "s".
+ * If the multi-affine expression has a domain, then then tuple
+ * representing this domain cannot involve any affine expressions.
+ * The tuple representing the actual expressions needs to consist
+ * of only affine expressions. Moreover, these expressions can
+ * only depend on parameters and input dimensions and not on other
+ * output dimensions.
+ */
+__isl_give isl_multi_aff *isl_stream_read_multi_aff(struct isl_stream *s)
+{
+ struct vars *v;
+ isl_set *dom = NULL;
+ isl_multi_pw_aff *tuple = NULL;
+ int dim, i, n;
+ isl_space *space, *dom_space;
+ isl_multi_aff *ma = NULL;
+
+ v = vars_new(s->ctx);
+ if (!v)
+ return NULL;
+
+ dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
+ if (next_is_tuple(s)) {
+ dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
+ if (isl_stream_eat(s, ISL_TOKEN_TO))
+ goto error;
+ }
+ if (!isl_set_plain_is_universe(dom))
+ isl_die(s->ctx, isl_error_invalid,
+ "expecting universe parameter domain", goto error);
+ if (isl_stream_eat(s, '{'))
+ goto error;
+
+ tuple = read_tuple(s, v, 0, 0);
+ if (!tuple)
+ goto error;
+ if (isl_stream_eat_if_available(s, ISL_TOKEN_TO)) {
+ isl_set *set;
+ isl_space *space;
+ int has_expr;
+
+ has_expr = tuple_has_expr(tuple);
+ if (has_expr < 0)
+ goto error;
+ if (has_expr)
+ isl_die(s->ctx, isl_error_invalid,
+ "expecting universe domain", goto error);
+ space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
+ set = isl_set_universe(space);
+ dom = isl_set_intersect_params(set, dom);
+ isl_multi_pw_aff_free(tuple);
+ tuple = read_tuple(s, v, 0, 0);
+ if (!tuple)
+ goto error;
+ }
+
+ if (isl_stream_eat(s, '}'))
+ goto error;
+
+ n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
+ dim = isl_set_dim(dom, isl_dim_all);
+ dom_space = isl_set_get_space(dom);
+ space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
+ space = isl_space_align_params(space, isl_space_copy(dom_space));
+ if (!isl_space_is_params(dom_space))
+ space = isl_space_map_from_domain_and_range(
+ isl_space_copy(dom_space), space);
+ isl_space_free(dom_space);
+ ma = isl_multi_aff_alloc(space);
+
+ for (i = 0; i < n; ++i) {
+ isl_pw_aff *pa;
+ isl_aff *aff;
+ pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
+ aff = aff_from_pw_aff(pa);
+ if (!aff)
+ goto error;
+ if (isl_aff_involves_dims(aff, isl_dim_in, dim, i + 1)) {
+ isl_aff_free(aff);
+ isl_die(s->ctx, isl_error_invalid,
+ "not an affine expression", goto error);
+ }
+ aff = isl_aff_drop_dims(aff, isl_dim_in, dim, n);
+ space = isl_multi_aff_get_domain_space(ma);
+ aff = isl_aff_reset_domain_space(aff, space);
+ ma = isl_multi_aff_set_aff(ma, i, aff);
+ }
+
+ isl_multi_pw_aff_free(tuple);
+ vars_free(v);
+ isl_set_free(dom);
+ return ma;
+error:
+ isl_multi_pw_aff_free(tuple);
+ vars_free(v);
+ isl_set_free(dom);
+ isl_multi_aff_free(ma);
+ return NULL;
+}
+
+__isl_give isl_multi_aff *isl_multi_aff_read_from_str(isl_ctx *ctx,
+ const char *str)
+{
+ isl_multi_aff *maff;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ maff = isl_stream_read_multi_aff(s);
+ isl_stream_free(s);
+ return maff;
+}
+
+__isl_give isl_union_pw_qpolynomial *isl_stream_read_union_pw_qpolynomial(
+ struct isl_stream *s)
+{
+ struct isl_obj obj;
+
+ obj = obj_read(s);
+ if (obj.type == isl_obj_pw_qpolynomial) {
+ obj.type = isl_obj_union_pw_qpolynomial;
+ obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
+ }
+ if (obj.v)
+ isl_assert(s->ctx, obj.type == isl_obj_union_pw_qpolynomial,
+ goto error);
+
+ return obj.v;
+error:
+ obj.type->free(obj.v);
+ return NULL;
+}
+
+__isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_read_from_str(
+ isl_ctx *ctx, const char *str)
+{
+ isl_union_pw_qpolynomial *upwqp;
+ struct isl_stream *s = isl_stream_new_str(ctx, str);
+ if (!s)
+ return NULL;
+ upwqp = isl_stream_read_union_pw_qpolynomial(s);
+ isl_stream_free(s);
+ return upwqp;
+}
projects / platform / upstream / isl.git / blobdiff