#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"
struct variable {
char *name;
return pos;
}
-static struct vars *read_var_list(struct isl_stream *s, struct vars *v)
+static __isl_give isl_basic_map *set_name(__isl_take isl_basic_map *bmap,
+ enum isl_dim_type type, unsigned pos, char *name)
{
- struct isl_token *tok;
-
- while ((tok = isl_stream_next_token(s)) != NULL) {
- int p;
- int n = v->n;
+ char *prime;
- if (tok->type != ISL_TOKEN_IDENT)
- break;
+ if (!bmap)
+ return NULL;
+ if (!name)
+ return bmap;
- 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;
- }
- isl_token_free(tok);
- tok = isl_stream_next_token(s);
- if (!tok || tok->type != ',')
- break;
+ prime = strchr(name, '\'');
+ if (prime)
+ *prime = '\0';
+ bmap->dim = isl_dim_set_name(bmap->dim, type, pos, name);
+ if (prime)
+ *prime = '\'';
- isl_token_free(tok);
- }
- if (tok)
- isl_stream_push_token(s, tok);
+ if (!bmap->dim)
+ goto error;
- return v;
+ return bmap;
error:
- isl_token_free(tok);
- vars_free(v);
+ isl_basic_map_free(bmap);
return NULL;
}
goto error;
if (pos >= n) {
isl_stream_error(s, tok, "unknown identifier");
+ isl_token_free(tok);
goto error;
}
if (sign > 0)
struct isl_token *tok2;
int n = v->n;
int pos = -1;
+ if (isl_stream_eat_if_available(s, '*') &&
+ !isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
+ isl_stream_error(s, NULL, "missing identifier");
+ goto error;
+ }
tok2 = isl_stream_next_token(s);
if (tok2 && tok2->type == ISL_TOKEN_IDENT) {
pos = vars_pos(v, tok2->u.s, -1);
if (pos >= n) {
isl_stream_error(s, tok2,
"unknown identifier");
+ isl_token_free(tok);
isl_token_free(tok2);
goto error;
}
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) {
+ 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;
+
+ 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)
{
return NULL;
}
-static struct vars *read_tuple(struct isl_stream *s, struct vars *v)
+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;
goto error;
}
isl_token_free(tok);
- v = read_var_list(s, v);
+ bmap = read_var_list(s, bmap, type, v);
tok = isl_stream_next_token(s);
if (!tok || tok->type != ']') {
isl_stream_error(s, tok, "expecting ']'");
}
isl_token_free(tok);
- return v;
+ return bmap;
error:
if (tok)
isl_token_free(tok);
- vars_free(v);
+ isl_basic_map_free(bmap);
return NULL;
}
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;
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 (!tok2->on_new_line) {
+ tok2 = isl_stream_next_token_on_same_line(s);
+ if (tok2) {
isl_stream_push_token(s, tok2);
isl_stream_push_token(s, tok);
return isl_map_from_basic_map(basic_map_read_polylib(s, nparam));
}
- isl_stream_push_token(s, tok2);
n = isl_int_get_si(tok->u.v);
isl_token_free(tok);
return map;
}
-static struct isl_dim *set_names(struct isl_dim *dim, struct vars *vars,
- enum isl_dim_type type, int offset, int n)
+static int optional_power(struct isl_stream *s)
{
- int i;
- struct variable *v;
+ 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_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_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 == '(') {
+ isl_token_free(tok);
+ qp = read_term(s, bmap, v);
+ if (!qp)
+ return NULL;
+ if (isl_stream_eat(s, ')'))
+ goto error;
+ } 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;
+ isl_token_free(tok);
+ if (pos < 0)
+ goto error;
+ if (pos >= n) {
+ isl_stream_error(s, tok, "unknown identifier");
+ return NULL;
+ }
+ pow = optional_power(s);
+ qp = isl_qpolynomial_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, 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;
- for (i = 0, v = vars->v; i < offset; ++i, v = v->next)
- ;
- for (i = n - 1; i >= 0; --i, v = v->next)
- dim = isl_dim_set_name(dim, type, i, v->name);
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_mul(qp, qp2);
+ }
- return dim;
+ return qp;
+error:
+ isl_qpolynomial_free(qp);
+ return NULL;
}
-static struct isl_dim *dim_from_vars(struct vars *vars,
- int nparam, int n_in, int n_out)
+static __isl_give isl_qpolynomial *read_term(struct isl_stream *s,
+ __isl_keep isl_basic_map *bmap, struct vars *v)
{
- struct isl_dim *dim;
+ 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;
- dim = isl_dim_alloc(vars->ctx, nparam, n_in, n_out);
- dim = set_names(dim, vars, isl_dim_param, n_out + n_in, nparam);
- dim = set_names(dim, vars, isl_dim_in, n_out, n_in);
- dim = set_names(dim, vars, isl_dim_out, 0, n_out);
+ 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;
+
+ qp2 = isl_qpolynomial_cst(isl_basic_map_get_dim(bmap),
+ tok->u.v);
+ isl_token_free(tok);
+ qp = isl_qpolynomial_add(qp, qp2);
+ } else {
+ isl_stream_push_token(s, tok);
+ break;
+ }
+ }
- return dim;
+ return qp;
}
-static struct isl_map *map_read(struct isl_stream *s, int nparam)
+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;
+
+ bmap = isl_basic_map_reverse(bmap);
+
+ 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);
+
+ vars_drop(v, v->n - n);
+
+ obj.v = pwqp;
+ return obj;
+}
+
+static struct isl_obj obj_read_body(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, struct vars *v, isl_obj_type type)
{
- struct isl_dim *dim = NULL;
struct isl_map *map = NULL;
struct isl_token *tok;
+ struct isl_obj obj = { type, NULL };
+ int n = v->n;
+
+ if (!isl_stream_next_token_is(s, '['))
+ return obj_read_poly(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);
+ tok = isl_stream_next_token(s);
+ if (tok && tok->type != '[') {
+ isl_stream_push_token(s, tok);
+ return obj_read_poly(s, bmap, v, n);
+ }
+ isl_stream_push_token(s, tok);
+ 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 obj_add(struct isl_ctx *ctx,
+ struct isl_obj obj1, struct isl_obj obj2)
+{
+ isl_assert(ctx, obj1.type == obj2.type, goto error);
+ 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)
+{
+ struct isl_basic_map *bmap = NULL;
+ struct isl_token *tok;
struct vars *v = NULL;
- int n1;
- int n2;
+ struct isl_obj obj = { isl_obj_set, NULL };
tok = isl_stream_next_token(s);
if (!tok) {
goto error;
}
if (tok->type == ISL_TOKEN_VALUE) {
+ struct isl_map *map;
isl_stream_push_token(s, tok);
- return map_read_polylib(s, nparam);
+ 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);
+ bmap = isl_basic_map_alloc(s->ctx, 0, 0, 0, 0, 0, 0);
if (tok->type == '[') {
isl_stream_push_token(s, tok);
- v = read_tuple(s, v);
- if (!v)
- return NULL;
+ 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);
- nparam = v->n;
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);
- }
- if (nparam < 0)
- nparam = 0;
+ } 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)
goto error;
}
isl_token_free(tok);
- v = read_tuple(s, v);
- if (!v)
- return NULL;
- n1 = v->n - nparam;
- tok = isl_stream_next_token(s);
- if (tok && tok->type == ISL_TOKEN_TO) {
+
+ 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;
+ if (!obj.v)
+ obj = o;
+ else {
+ obj = obj_add(s->ctx, obj, o);
+ if (obj.type == isl_obj_none)
+ break;
+ }
+ tok = isl_stream_next_token(s);
+ if (!tok || tok->type != ';')
+ break;
isl_token_free(tok);
- v = read_tuple(s, v);
- if (!v)
- return NULL;
- n2 = v->n - n1 - nparam;
- } else {
- if (tok)
- isl_stream_push_token(s, tok);
- n2 = n1;
- n1 = 0;
}
- dim = dim_from_vars(v, nparam, n1, n2);
- tok = isl_stream_next_token(s);
- if (!tok) {
- isl_stream_error(s, NULL, "unexpected EOF");
- goto error;
- }
- if (tok->type == ':') {
- isl_token_free(tok);
- map = read_disjuncts(s, v, isl_dim_copy(dim));
- tok = isl_stream_next_token(s);
- } else
- map = isl_map_universe(isl_dim_copy(dim));
+
if (tok && tok->type == '}') {
isl_token_free(tok);
} else {
goto error;
}
vars_free(v);
- isl_dim_free(dim);
+ isl_basic_map_free(bmap);
- return map;
+ return obj;
error:
- isl_dim_free(dim);
- isl_map_free(map);
+ 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;
}
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;
- map = map_read(s, nparam);
+ obj = obj_read(s, nparam);
+ map = obj.v;
if (!map)
return NULL;
struct isl_stream *s = isl_stream_new_file(ctx, input);
if (!s)
return NULL;
- map = map_read(s, nparam);
+ map = isl_stream_read_map(s, nparam);
isl_stream_free(s);
return map;
}
struct isl_stream *s = isl_stream_new_str(ctx, str);
if (!s)
return NULL;
- map = map_read(s, nparam);
+ map = isl_stream_read_map(s, nparam);
isl_stream_free(s);
return map;
}
projects / platform / upstream / isl.git / blobdiff