#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;
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 map;
}
-static struct isl_map *map_read_body(struct isl_stream *s,
- __isl_take isl_basic_map *bmap, struct vars *v)
+static int optional_power(struct isl_stream *s)
{
- struct isl_map *map = NULL;
+ int pow;
struct isl_token *tok;
- int n = v->n;
- bmap = read_tuple(s, bmap, isl_dim_in, v);
- if (!bmap)
+ 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 && tok->type == ISL_TOKEN_TO) {
+ if (!tok) {
+ isl_stream_error(s, NULL, "unexpected EOF");
+ return NULL;
+ }
+ if (tok->type == '(') {
isl_token_free(tok);
- bmap = read_tuple(s, bmap, isl_dim_out, v);
- if (!bmap)
+ 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 {
- bmap = isl_basic_map_reverse(bmap);
- if (tok)
+ isl_stream_error(s, tok, "unexpected isl_token");
+ isl_stream_push_token(s, tok);
+ return NULL;
+ }
+
+ if (isl_stream_eat_if_available(s, '*') ||
+ isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
+ struct isl_qpolynomial *qp2;
+
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_mul(qp, qp2);
+ }
+
+ return qp;
+error:
+ isl_qpolynomial_free(qp);
+ return NULL;
+}
+
+static __isl_give isl_qpolynomial *read_term(struct isl_stream *s,
+ __isl_keep isl_basic_map *bmap, struct vars *v)
+{
+ struct isl_token *tok;
+ struct isl_qpolynomial *qp;
+
+ qp = read_factor(s, bmap, v);
+
+ for (;;) {
+ tok = isl_stream_next_token(s);
+ if (!tok)
+ return qp;
+
+ if (tok->type == '+') {
+ struct isl_qpolynomial *qp2;
+
+ isl_token_free(tok);
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_add(qp, qp2);
+ } else if (tok->type == '-') {
+ struct isl_qpolynomial *qp2;
+
+ isl_token_free(tok);
+ qp2 = read_factor(s, bmap, v);
+ qp = isl_qpolynomial_sub(qp, qp2);
+ } else if (tok->type == ISL_TOKEN_VALUE &&
+ isl_int_is_neg(tok->u.v)) {
+ struct isl_qpolynomial *qp2;
+
+ 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 qp;
+}
+
+static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
+ __isl_take isl_basic_map *bmap, struct vars *v)
+{
+ struct isl_token *tok;
+ struct isl_map *map;
+
tok = isl_stream_next_token(s);
if (!tok) {
isl_stream_error(s, NULL, "unexpected EOF");
} else
isl_stream_push_token(s, tok);
- vars_drop(v, v->n - n);
-
isl_basic_map_free(bmap);
+
return map;
error:
isl_basic_map_free(bmap);
return NULL;
}
-static struct isl_map *map_read(struct isl_stream *s, int nparam)
+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_basic_map *bmap = 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;
+ 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);
isl_token_free(tok);
for (;;) {
- isl_map *m = map_read_body(s, isl_basic_map_copy(bmap), v);
- if (!m)
+ 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 (map)
- map = isl_map_union(map, m);
- else
- map = m;
+ 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;
vars_free(v);
isl_basic_map_free(bmap);
- return map;
+ return obj;
error:
isl_basic_map_free(bmap);
- isl_map_free(map);
+ 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