| /* |
| * Copyright 2008-2009 Katholieke Universiteit Leuven |
| * Copyright 2010 INRIA Saclay |
| * |
| * Use of this software is governed by the GNU LGPLv2.1 license |
| * |
| * Written by Sven Verdoolaege, K.U.Leuven, Departement |
| * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium |
| * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite, |
| * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France |
| */ |
| |
| #include <stdlib.h> |
| #include <isl_space_private.h> |
| #include <isl_id_private.h> |
| #include <isl_reordering.h> |
| |
| isl_ctx *isl_space_get_ctx(__isl_keep isl_space *dim) |
| { |
| return dim ? dim->ctx : NULL; |
| } |
| |
| __isl_give isl_space *isl_space_alloc(isl_ctx *ctx, |
| unsigned nparam, unsigned n_in, unsigned n_out) |
| { |
| isl_space *dim; |
| |
| dim = isl_alloc_type(ctx, struct isl_space); |
| if (!dim) |
| return NULL; |
| |
| dim->ctx = ctx; |
| isl_ctx_ref(ctx); |
| dim->ref = 1; |
| dim->nparam = nparam; |
| dim->n_in = n_in; |
| dim->n_out = n_out; |
| |
| dim->tuple_id[0] = NULL; |
| dim->tuple_id[1] = NULL; |
| |
| dim->nested[0] = NULL; |
| dim->nested[1] = NULL; |
| |
| dim->n_id = 0; |
| dim->ids = NULL; |
| |
| return dim; |
| } |
| |
| /* Mark the space as being that of a set, by setting the domain tuple |
| * to isl_id_none. |
| */ |
| static __isl_give isl_space *mark_as_set(__isl_take isl_space *space) |
| { |
| space = isl_space_cow(space); |
| if (!space) |
| return NULL; |
| space = isl_space_set_tuple_id(space, isl_dim_in, &isl_id_none); |
| return space; |
| } |
| |
| /* Is the space that of a set? |
| */ |
| int isl_space_is_set(__isl_keep isl_space *space) |
| { |
| if (!space) |
| return -1; |
| if (space->n_in != 0 || space->nested[0]) |
| return 0; |
| if (space->tuple_id[0] != &isl_id_none) |
| return 0; |
| return 1; |
| } |
| |
| __isl_give isl_space *isl_space_set_alloc(isl_ctx *ctx, |
| unsigned nparam, unsigned dim) |
| { |
| isl_space *space; |
| space = isl_space_alloc(ctx, nparam, 0, dim); |
| space = mark_as_set(space); |
| return space; |
| } |
| |
| /* Mark the space as being that of a parameter domain, by setting |
| * both tuples to isl_id_none. |
| */ |
| static __isl_give isl_space *mark_as_params(isl_space *space) |
| { |
| if (!space) |
| return NULL; |
| space = isl_space_set_tuple_id(space, isl_dim_in, &isl_id_none); |
| space = isl_space_set_tuple_id(space, isl_dim_out, &isl_id_none); |
| return space; |
| } |
| |
| /* Is the space that of a parameter domain? |
| */ |
| int isl_space_is_params(__isl_keep isl_space *space) |
| { |
| if (!space) |
| return -1; |
| if (space->n_in != 0 || space->nested[0] || |
| space->n_out != 0 || space->nested[1]) |
| return 0; |
| if (space->tuple_id[0] != &isl_id_none) |
| return 0; |
| if (space->tuple_id[1] != &isl_id_none) |
| return 0; |
| return 1; |
| } |
| |
| /* Create a space for a parameter domain. |
| */ |
| __isl_give isl_space *isl_space_params_alloc(isl_ctx *ctx, unsigned nparam) |
| { |
| isl_space *space; |
| space = isl_space_alloc(ctx, nparam, 0, 0); |
| space = mark_as_params(space); |
| return space; |
| } |
| |
| static unsigned global_pos(__isl_keep isl_space *dim, |
| enum isl_dim_type type, unsigned pos) |
| { |
| struct isl_ctx *ctx = dim->ctx; |
| |
| switch (type) { |
| case isl_dim_param: |
| isl_assert(ctx, pos < dim->nparam, |
| return isl_space_dim(dim, isl_dim_all)); |
| return pos; |
| case isl_dim_in: |
| isl_assert(ctx, pos < dim->n_in, |
| return isl_space_dim(dim, isl_dim_all)); |
| return pos + dim->nparam; |
| case isl_dim_out: |
| isl_assert(ctx, pos < dim->n_out, |
| return isl_space_dim(dim, isl_dim_all)); |
| return pos + dim->nparam + dim->n_in; |
| default: |
| isl_assert(ctx, 0, return isl_space_dim(dim, isl_dim_all)); |
| } |
| return isl_space_dim(dim, isl_dim_all); |
| } |
| |
| /* Extend length of ids array to the total number of dimensions. |
| */ |
| static __isl_give isl_space *extend_ids(__isl_take isl_space *dim) |
| { |
| isl_id **ids; |
| int i; |
| |
| if (isl_space_dim(dim, isl_dim_all) <= dim->n_id) |
| return dim; |
| |
| if (!dim->ids) { |
| dim->ids = isl_calloc_array(dim->ctx, |
| isl_id *, isl_space_dim(dim, isl_dim_all)); |
| if (!dim->ids) |
| goto error; |
| } else { |
| ids = isl_realloc_array(dim->ctx, dim->ids, |
| isl_id *, isl_space_dim(dim, isl_dim_all)); |
| if (!ids) |
| goto error; |
| dim->ids = ids; |
| for (i = dim->n_id; i < isl_space_dim(dim, isl_dim_all); ++i) |
| dim->ids[i] = NULL; |
| } |
| |
| dim->n_id = isl_space_dim(dim, isl_dim_all); |
| |
| return dim; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| static __isl_give isl_space *set_id(__isl_take isl_space *dim, |
| enum isl_dim_type type, unsigned pos, __isl_take isl_id *id) |
| { |
| dim = isl_space_cow(dim); |
| |
| if (!dim) |
| goto error; |
| |
| pos = global_pos(dim, type, pos); |
| if (pos == isl_space_dim(dim, isl_dim_all)) |
| goto error; |
| |
| if (pos >= dim->n_id) { |
| if (!id) |
| return dim; |
| dim = extend_ids(dim); |
| if (!dim) |
| goto error; |
| } |
| |
| dim->ids[pos] = id; |
| |
| return dim; |
| error: |
| isl_id_free(id); |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| static __isl_keep isl_id *get_id(__isl_keep isl_space *dim, |
| enum isl_dim_type type, unsigned pos) |
| { |
| if (!dim) |
| return NULL; |
| |
| pos = global_pos(dim, type, pos); |
| if (pos == isl_space_dim(dim, isl_dim_all)) |
| return NULL; |
| if (pos >= dim->n_id) |
| return NULL; |
| return dim->ids[pos]; |
| } |
| |
| static unsigned offset(__isl_keep isl_space *dim, enum isl_dim_type type) |
| { |
| switch (type) { |
| case isl_dim_param: return 0; |
| case isl_dim_in: return dim->nparam; |
| case isl_dim_out: return dim->nparam + dim->n_in; |
| default: return 0; |
| } |
| } |
| |
| static unsigned n(__isl_keep isl_space *dim, enum isl_dim_type type) |
| { |
| switch (type) { |
| case isl_dim_param: return dim->nparam; |
| case isl_dim_in: return dim->n_in; |
| case isl_dim_out: return dim->n_out; |
| case isl_dim_all: return dim->nparam + dim->n_in + dim->n_out; |
| default: return 0; |
| } |
| } |
| |
| unsigned isl_space_dim(__isl_keep isl_space *dim, enum isl_dim_type type) |
| { |
| if (!dim) |
| return 0; |
| return n(dim, type); |
| } |
| |
| unsigned isl_space_offset(__isl_keep isl_space *dim, enum isl_dim_type type) |
| { |
| if (!dim) |
| return 0; |
| return offset(dim, type); |
| } |
| |
| static __isl_give isl_space *copy_ids(__isl_take isl_space *dst, |
| enum isl_dim_type dst_type, unsigned offset, __isl_keep isl_space *src, |
| enum isl_dim_type src_type) |
| { |
| int i; |
| isl_id *id; |
| |
| if (!dst) |
| return NULL; |
| |
| for (i = 0; i < n(src, src_type); ++i) { |
| id = get_id(src, src_type, i); |
| if (!id) |
| continue; |
| dst = set_id(dst, dst_type, offset + i, isl_id_copy(id)); |
| if (!dst) |
| return NULL; |
| } |
| return dst; |
| } |
| |
| __isl_take isl_space *isl_space_dup(__isl_keep isl_space *dim) |
| { |
| isl_space *dup; |
| if (!dim) |
| return NULL; |
| dup = isl_space_alloc(dim->ctx, dim->nparam, dim->n_in, dim->n_out); |
| if (dim->tuple_id[0] && |
| !(dup->tuple_id[0] = isl_id_copy(dim->tuple_id[0]))) |
| goto error; |
| if (dim->tuple_id[1] && |
| !(dup->tuple_id[1] = isl_id_copy(dim->tuple_id[1]))) |
| goto error; |
| if (dim->nested[0] && !(dup->nested[0] = isl_space_copy(dim->nested[0]))) |
| goto error; |
| if (dim->nested[1] && !(dup->nested[1] = isl_space_copy(dim->nested[1]))) |
| goto error; |
| if (!dim->ids) |
| return dup; |
| dup = copy_ids(dup, isl_dim_param, 0, dim, isl_dim_param); |
| dup = copy_ids(dup, isl_dim_in, 0, dim, isl_dim_in); |
| dup = copy_ids(dup, isl_dim_out, 0, dim, isl_dim_out); |
| return dup; |
| error: |
| isl_space_free(dup); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_cow(__isl_take isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| |
| if (dim->ref == 1) |
| return dim; |
| dim->ref--; |
| return isl_space_dup(dim); |
| } |
| |
| __isl_give isl_space *isl_space_copy(__isl_keep isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| |
| dim->ref++; |
| return dim; |
| } |
| |
| void isl_space_free(__isl_take isl_space *dim) |
| { |
| int i; |
| |
| if (!dim) |
| return; |
| |
| if (--dim->ref > 0) |
| return; |
| |
| isl_id_free(dim->tuple_id[0]); |
| isl_id_free(dim->tuple_id[1]); |
| |
| isl_space_free(dim->nested[0]); |
| isl_space_free(dim->nested[1]); |
| |
| for (i = 0; i < dim->n_id; ++i) |
| isl_id_free(dim->ids[i]); |
| free(dim->ids); |
| isl_ctx_deref(dim->ctx); |
| |
| free(dim); |
| } |
| |
| static int name_ok(isl_ctx *ctx, const char *s) |
| { |
| char *p; |
| long dummy; |
| |
| dummy = strtol(s, &p, 0); |
| if (p != s) |
| isl_die(ctx, isl_error_invalid, "name looks like a number", |
| return 0); |
| |
| return 1; |
| } |
| |
| int isl_space_has_tuple_id(__isl_keep isl_space *dim, enum isl_dim_type type) |
| { |
| if (!dim) |
| return -1; |
| if (isl_space_is_params(dim)) |
| isl_die(dim->ctx, isl_error_invalid, |
| "parameter spaces don't have tuple ids", return -1); |
| if (isl_space_is_set(dim) && type != isl_dim_set) |
| isl_die(dim->ctx, isl_error_invalid, |
| "set spaces can only have a set id", return -1); |
| if (type != isl_dim_in && type != isl_dim_out) |
| isl_die(dim->ctx, isl_error_invalid, |
| "only input, output and set tuples can have ids", |
| return -1); |
| return dim->tuple_id[type - isl_dim_in] != NULL; |
| } |
| |
| __isl_give isl_id *isl_space_get_tuple_id(__isl_keep isl_space *dim, |
| enum isl_dim_type type) |
| { |
| int has_id; |
| |
| if (!dim) |
| return NULL; |
| has_id = isl_space_has_tuple_id(dim, type); |
| if (has_id < 0) |
| return NULL; |
| if (!has_id) |
| isl_die(dim->ctx, isl_error_invalid, |
| "tuple has no id", return NULL); |
| return isl_id_copy(dim->tuple_id[type - isl_dim_in]); |
| } |
| |
| __isl_give isl_space *isl_space_set_tuple_id(__isl_take isl_space *dim, |
| enum isl_dim_type type, __isl_take isl_id *id) |
| { |
| dim = isl_space_cow(dim); |
| if (!dim || !id) |
| goto error; |
| if (type != isl_dim_in && type != isl_dim_out) |
| isl_die(dim->ctx, isl_error_invalid, |
| "only input, output and set tuples can have names", |
| goto error); |
| |
| isl_id_free(dim->tuple_id[type - isl_dim_in]); |
| dim->tuple_id[type - isl_dim_in] = id; |
| |
| return dim; |
| error: |
| isl_id_free(id); |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_reset_tuple_id(__isl_take isl_space *dim, |
| enum isl_dim_type type) |
| { |
| dim = isl_space_cow(dim); |
| if (!dim) |
| return NULL; |
| if (type != isl_dim_in && type != isl_dim_out) |
| isl_die(dim->ctx, isl_error_invalid, |
| "only input, output and set tuples can have names", |
| goto error); |
| |
| isl_id_free(dim->tuple_id[type - isl_dim_in]); |
| dim->tuple_id[type - isl_dim_in] = NULL; |
| |
| return dim; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_set_dim_id(__isl_take isl_space *dim, |
| enum isl_dim_type type, unsigned pos, __isl_take isl_id *id) |
| { |
| dim = isl_space_cow(dim); |
| if (!dim || !id) |
| goto error; |
| isl_id_free(get_id(dim, type, pos)); |
| return set_id(dim, type, pos, id); |
| error: |
| isl_id_free(id); |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| int isl_space_has_dim_id(__isl_keep isl_space *dim, |
| enum isl_dim_type type, unsigned pos) |
| { |
| if (!dim) |
| return -1; |
| return get_id(dim, type, pos) != NULL; |
| } |
| |
| __isl_give isl_id *isl_space_get_dim_id(__isl_keep isl_space *dim, |
| enum isl_dim_type type, unsigned pos) |
| { |
| if (!dim) |
| return NULL; |
| if (!get_id(dim, type, pos)) |
| isl_die(dim->ctx, isl_error_invalid, |
| "dim has no id", return NULL); |
| return isl_id_copy(get_id(dim, type, pos)); |
| } |
| |
| __isl_give isl_space *isl_space_set_tuple_name(__isl_take isl_space *dim, |
| enum isl_dim_type type, const char *s) |
| { |
| isl_id *id; |
| |
| if (!dim) |
| return NULL; |
| |
| if (!s) |
| return isl_space_reset_tuple_id(dim, type); |
| |
| if (!name_ok(dim->ctx, s)) |
| goto error; |
| |
| id = isl_id_alloc(dim->ctx, s, NULL); |
| return isl_space_set_tuple_id(dim, type, id); |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| const char *isl_space_get_tuple_name(__isl_keep isl_space *dim, |
| enum isl_dim_type type) |
| { |
| isl_id *id; |
| if (!dim) |
| return NULL; |
| if (type != isl_dim_in && type != isl_dim_out) |
| return NULL; |
| id = dim->tuple_id[type - isl_dim_in]; |
| return id ? id->name : NULL; |
| } |
| |
| __isl_give isl_space *isl_space_set_dim_name(__isl_take isl_space *dim, |
| enum isl_dim_type type, unsigned pos, |
| const char *s) |
| { |
| isl_id *id; |
| |
| if (!dim) |
| return NULL; |
| if (!name_ok(dim->ctx, s)) |
| goto error; |
| id = isl_id_alloc(dim->ctx, s, NULL); |
| return isl_space_set_dim_id(dim, type, pos, id); |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_keep const char *isl_space_get_dim_name(__isl_keep isl_space *dim, |
| enum isl_dim_type type, unsigned pos) |
| { |
| isl_id *id = get_id(dim, type, pos); |
| return id ? id->name : NULL; |
| } |
| |
| int isl_space_find_dim_by_id(__isl_keep isl_space *dim, enum isl_dim_type type, |
| __isl_keep isl_id *id) |
| { |
| int i; |
| int offset; |
| int n; |
| |
| if (!dim || !id) |
| return -1; |
| |
| offset = isl_space_offset(dim, type); |
| n = isl_space_dim(dim, type); |
| for (i = 0; i < n && offset + i < dim->n_id; ++i) |
| if (dim->ids[offset + i] == id) |
| return i; |
| |
| return -1; |
| } |
| |
| int isl_space_find_dim_by_name(__isl_keep isl_space *space, |
| enum isl_dim_type type, const char *name) |
| { |
| int i; |
| int offset; |
| int n; |
| |
| if (!space || !name) |
| return -1; |
| |
| offset = isl_space_offset(space, type); |
| n = isl_space_dim(space, type); |
| for (i = 0; i < n && offset + i < space->n_id; ++i) |
| if (space->ids[offset + i]->name && |
| !strcmp(space->ids[offset + i]->name, name)) |
| return i; |
| |
| return -1; |
| } |
| |
| static __isl_keep isl_id *tuple_id(__isl_keep isl_space *dim, |
| enum isl_dim_type type) |
| { |
| if (!dim) |
| return NULL; |
| if (type == isl_dim_in) |
| return dim->tuple_id[0]; |
| if (type == isl_dim_out) |
| return dim->tuple_id[1]; |
| return NULL; |
| } |
| |
| static __isl_keep isl_space *nested(__isl_keep isl_space *dim, |
| enum isl_dim_type type) |
| { |
| if (!dim) |
| return NULL; |
| if (type == isl_dim_in) |
| return dim->nested[0]; |
| if (type == isl_dim_out) |
| return dim->nested[1]; |
| return NULL; |
| } |
| |
| int isl_space_tuple_match(__isl_keep isl_space *dim1, enum isl_dim_type dim1_type, |
| __isl_keep isl_space *dim2, enum isl_dim_type dim2_type) |
| { |
| isl_id *id1, *id2; |
| isl_space *nested1, *nested2; |
| |
| if (!dim1 || !dim2) |
| return -1; |
| |
| if (dim1 == dim2 && dim1_type == dim2_type) |
| return 1; |
| |
| if (n(dim1, dim1_type) != n(dim2, dim2_type)) |
| return 0; |
| id1 = tuple_id(dim1, dim1_type); |
| id2 = tuple_id(dim2, dim2_type); |
| if (!id1 ^ !id2) |
| return 0; |
| if (id1 && id1 != id2) |
| return 0; |
| nested1 = nested(dim1, dim1_type); |
| nested2 = nested(dim2, dim2_type); |
| if (!nested1 ^ !nested2) |
| return 0; |
| if (nested1 && !isl_space_is_equal(nested1, nested2)) |
| return 0; |
| return 1; |
| } |
| |
| static int match(__isl_keep isl_space *dim1, enum isl_dim_type dim1_type, |
| __isl_keep isl_space *dim2, enum isl_dim_type dim2_type) |
| { |
| int i; |
| |
| if (dim1 == dim2 && dim1_type == dim2_type) |
| return 1; |
| |
| if (!isl_space_tuple_match(dim1, dim1_type, dim2, dim2_type)) |
| return 0; |
| |
| if (!dim1->ids && !dim2->ids) |
| return 1; |
| |
| for (i = 0; i < n(dim1, dim1_type); ++i) { |
| if (get_id(dim1, dim1_type, i) != get_id(dim2, dim2_type, i)) |
| return 0; |
| } |
| return 1; |
| } |
| |
| int isl_space_match(__isl_keep isl_space *dim1, enum isl_dim_type dim1_type, |
| __isl_keep isl_space *dim2, enum isl_dim_type dim2_type) |
| { |
| if (!dim1 || !dim2) |
| return -1; |
| |
| return match(dim1, dim1_type, dim2, dim2_type); |
| } |
| |
| static void get_ids(__isl_keep isl_space *dim, enum isl_dim_type type, |
| unsigned first, unsigned n, __isl_keep isl_id **ids) |
| { |
| int i; |
| |
| for (i = 0; i < n ; ++i) |
| ids[i] = get_id(dim, type, first + i); |
| } |
| |
| __isl_give isl_space *isl_space_extend(__isl_take isl_space *dim, |
| unsigned nparam, unsigned n_in, unsigned n_out) |
| { |
| isl_id **ids = NULL; |
| |
| if (!dim) |
| return NULL; |
| if (dim->nparam == nparam && dim->n_in == n_in && dim->n_out == n_out) |
| return dim; |
| |
| isl_assert(dim->ctx, dim->nparam <= nparam, goto error); |
| isl_assert(dim->ctx, dim->n_in <= n_in, goto error); |
| isl_assert(dim->ctx, dim->n_out <= n_out, goto error); |
| |
| dim = isl_space_cow(dim); |
| |
| if (dim->ids) { |
| ids = isl_calloc_array(dim->ctx, isl_id *, |
| nparam + n_in + n_out); |
| if (!ids) |
| goto error; |
| get_ids(dim, isl_dim_param, 0, dim->nparam, ids); |
| get_ids(dim, isl_dim_in, 0, dim->n_in, ids + nparam); |
| get_ids(dim, isl_dim_out, 0, dim->n_out, ids + nparam + n_in); |
| free(dim->ids); |
| dim->ids = ids; |
| dim->n_id = nparam + n_in + n_out; |
| } |
| dim->nparam = nparam; |
| dim->n_in = n_in; |
| dim->n_out = n_out; |
| |
| return dim; |
| error: |
| free(ids); |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_add_dims(__isl_take isl_space *dim, |
| enum isl_dim_type type, unsigned n) |
| { |
| if (!dim) |
| return NULL; |
| dim = isl_space_reset(dim, type); |
| switch (type) { |
| case isl_dim_param: |
| dim = isl_space_extend(dim, |
| dim->nparam + n, dim->n_in, dim->n_out); |
| if (dim && dim->nested[0] && |
| !(dim->nested[0] = isl_space_add_dims(dim->nested[0], |
| isl_dim_param, n))) |
| goto error; |
| if (dim && dim->nested[1] && |
| !(dim->nested[1] = isl_space_add_dims(dim->nested[1], |
| isl_dim_param, n))) |
| goto error; |
| return dim; |
| case isl_dim_in: |
| return isl_space_extend(dim, |
| dim->nparam, dim->n_in + n, dim->n_out); |
| case isl_dim_out: |
| return isl_space_extend(dim, |
| dim->nparam, dim->n_in, dim->n_out + n); |
| default: |
| isl_die(dim->ctx, isl_error_invalid, |
| "cannot add dimensions of specified type", goto error); |
| } |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| static int valid_dim_type(enum isl_dim_type type) |
| { |
| switch (type) { |
| case isl_dim_param: |
| case isl_dim_in: |
| case isl_dim_out: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| __isl_give isl_space *isl_space_insert_dims(__isl_take isl_space *dim, |
| enum isl_dim_type type, unsigned pos, unsigned n) |
| { |
| isl_id **ids = NULL; |
| |
| if (!dim) |
| return NULL; |
| if (n == 0) |
| return isl_space_reset(dim, type); |
| |
| if (!valid_dim_type(type)) |
| isl_die(dim->ctx, isl_error_invalid, |
| "cannot insert dimensions of specified type", |
| goto error); |
| |
| isl_assert(dim->ctx, pos <= isl_space_dim(dim, type), goto error); |
| |
| dim = isl_space_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| if (dim->ids) { |
| enum isl_dim_type t; |
| int off; |
| int s[3]; |
| int *size = s - isl_dim_param; |
| ids = isl_calloc_array(dim->ctx, isl_id *, |
| dim->nparam + dim->n_in + dim->n_out + n); |
| if (!ids) |
| goto error; |
| off = 0; |
| size[isl_dim_param] = dim->nparam; |
| size[isl_dim_in] = dim->n_in; |
| size[isl_dim_out] = dim->n_out; |
| for (t = isl_dim_param; t <= isl_dim_out; ++t) { |
| if (t != type) { |
| get_ids(dim, t, 0, size[t], ids + off); |
| off += size[t]; |
| } else { |
| get_ids(dim, t, 0, pos, ids + off); |
| off += pos + n; |
| get_ids(dim, t, pos, size[t] - pos, ids + off); |
| off += size[t] - pos; |
| } |
| } |
| free(dim->ids); |
| dim->ids = ids; |
| dim->n_id = dim->nparam + dim->n_in + dim->n_out + n; |
| } |
| switch (type) { |
| case isl_dim_param: dim->nparam += n; break; |
| case isl_dim_in: dim->n_in += n; break; |
| case isl_dim_out: dim->n_out += n; break; |
| default: ; |
| } |
| dim = isl_space_reset(dim, type); |
| |
| return dim; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_move_dims(__isl_take isl_space *dim, |
| enum isl_dim_type dst_type, unsigned dst_pos, |
| enum isl_dim_type src_type, unsigned src_pos, unsigned n) |
| { |
| int i; |
| |
| if (!dim) |
| return NULL; |
| if (n == 0) |
| return dim; |
| |
| isl_assert(dim->ctx, src_pos + n <= isl_space_dim(dim, src_type), |
| goto error); |
| |
| if (dst_type == src_type && dst_pos == src_pos) |
| return dim; |
| |
| isl_assert(dim->ctx, dst_type != src_type, goto error); |
| |
| dim = isl_space_reset(dim, src_type); |
| dim = isl_space_reset(dim, dst_type); |
| |
| dim = isl_space_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| if (dim->ids) { |
| isl_id **ids; |
| enum isl_dim_type t; |
| int off; |
| int s[3]; |
| int *size = s - isl_dim_param; |
| ids = isl_calloc_array(dim->ctx, isl_id *, |
| dim->nparam + dim->n_in + dim->n_out); |
| if (!ids) |
| goto error; |
| off = 0; |
| size[isl_dim_param] = dim->nparam; |
| size[isl_dim_in] = dim->n_in; |
| size[isl_dim_out] = dim->n_out; |
| for (t = isl_dim_param; t <= isl_dim_out; ++t) { |
| if (t == dst_type) { |
| get_ids(dim, t, 0, dst_pos, ids + off); |
| off += dst_pos; |
| get_ids(dim, src_type, src_pos, n, ids + off); |
| off += n; |
| get_ids(dim, t, dst_pos, size[t] - dst_pos, |
| ids + off); |
| off += size[t] - dst_pos; |
| } else if (t == src_type) { |
| get_ids(dim, t, 0, src_pos, ids + off); |
| off += src_pos; |
| get_ids(dim, t, src_pos + n, |
| size[t] - src_pos - n, ids + off); |
| off += size[t] - src_pos - n; |
| } else { |
| get_ids(dim, t, 0, size[t], ids + off); |
| off += size[t]; |
| } |
| } |
| free(dim->ids); |
| dim->ids = ids; |
| dim->n_id = dim->nparam + dim->n_in + dim->n_out; |
| } |
| |
| switch (dst_type) { |
| case isl_dim_param: dim->nparam += n; break; |
| case isl_dim_in: dim->n_in += n; break; |
| case isl_dim_out: dim->n_out += n; break; |
| default: ; |
| } |
| |
| switch (src_type) { |
| case isl_dim_param: dim->nparam -= n; break; |
| case isl_dim_in: dim->n_in -= n; break; |
| case isl_dim_out: dim->n_out -= n; break; |
| default: ; |
| } |
| |
| if (dst_type != isl_dim_param && src_type != isl_dim_param) |
| return dim; |
| |
| for (i = 0; i < 2; ++i) { |
| if (!dim->nested[i]) |
| continue; |
| dim->nested[i] = isl_space_replace(dim->nested[i], |
| isl_dim_param, dim); |
| if (!dim->nested[i]) |
| goto error; |
| } |
| |
| return dim; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_join(__isl_take isl_space *left, |
| __isl_take isl_space *right) |
| { |
| isl_space *dim; |
| |
| if (!left || !right) |
| goto error; |
| |
| isl_assert(left->ctx, match(left, isl_dim_param, right, isl_dim_param), |
| goto error); |
| isl_assert(left->ctx, |
| isl_space_tuple_match(left, isl_dim_out, right, isl_dim_in), |
| goto error); |
| |
| dim = isl_space_alloc(left->ctx, left->nparam, left->n_in, right->n_out); |
| if (!dim) |
| goto error; |
| |
| dim = copy_ids(dim, isl_dim_param, 0, left, isl_dim_param); |
| dim = copy_ids(dim, isl_dim_in, 0, left, isl_dim_in); |
| dim = copy_ids(dim, isl_dim_out, 0, right, isl_dim_out); |
| |
| if (dim && left->tuple_id[0] && |
| !(dim->tuple_id[0] = isl_id_copy(left->tuple_id[0]))) |
| goto error; |
| if (dim && right->tuple_id[1] && |
| !(dim->tuple_id[1] = isl_id_copy(right->tuple_id[1]))) |
| goto error; |
| if (dim && left->nested[0] && |
| !(dim->nested[0] = isl_space_copy(left->nested[0]))) |
| goto error; |
| if (dim && right->nested[1] && |
| !(dim->nested[1] = isl_space_copy(right->nested[1]))) |
| goto error; |
| |
| isl_space_free(left); |
| isl_space_free(right); |
| |
| return dim; |
| error: |
| isl_space_free(left); |
| isl_space_free(right); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_product(__isl_take isl_space *left, |
| __isl_take isl_space *right) |
| { |
| isl_space *dom1, *dom2, *nest1, *nest2; |
| |
| if (!left || !right) |
| goto error; |
| |
| isl_assert(left->ctx, match(left, isl_dim_param, right, isl_dim_param), |
| goto error); |
| |
| dom1 = isl_space_domain(isl_space_copy(left)); |
| dom2 = isl_space_domain(isl_space_copy(right)); |
| nest1 = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2)); |
| |
| dom1 = isl_space_range(left); |
| dom2 = isl_space_range(right); |
| nest2 = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2)); |
| |
| return isl_space_join(isl_space_reverse(nest1), nest2); |
| error: |
| isl_space_free(left); |
| isl_space_free(right); |
| return NULL; |
| } |
| |
| /* Given two spaces { A -> C } and { B -> C }, construct the space |
| * { [A -> B] -> C } |
| */ |
| __isl_give isl_space *isl_space_domain_product(__isl_take isl_space *left, |
| __isl_take isl_space *right) |
| { |
| isl_space *ran, *dom1, *dom2, *nest; |
| |
| if (!left || !right) |
| goto error; |
| |
| if (!match(left, isl_dim_param, right, isl_dim_param)) |
| isl_die(left->ctx, isl_error_invalid, |
| "parameters need to match", goto error); |
| if (!isl_space_tuple_match(left, isl_dim_out, right, isl_dim_out)) |
| isl_die(left->ctx, isl_error_invalid, |
| "ranges need to match", goto error); |
| |
| ran = isl_space_range(isl_space_copy(left)); |
| |
| dom1 = isl_space_domain(left); |
| dom2 = isl_space_domain(right); |
| nest = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2)); |
| |
| return isl_space_join(isl_space_reverse(nest), ran); |
| error: |
| isl_space_free(left); |
| isl_space_free(right); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_range_product(__isl_take isl_space *left, |
| __isl_take isl_space *right) |
| { |
| isl_space *dom, *ran1, *ran2, *nest; |
| |
| if (!left || !right) |
| goto error; |
| |
| isl_assert(left->ctx, match(left, isl_dim_param, right, isl_dim_param), |
| goto error); |
| if (!isl_space_tuple_match(left, isl_dim_in, right, isl_dim_in)) |
| isl_die(left->ctx, isl_error_invalid, |
| "domains need to match", goto error); |
| |
| dom = isl_space_domain(isl_space_copy(left)); |
| |
| ran1 = isl_space_range(left); |
| ran2 = isl_space_range(right); |
| nest = isl_space_wrap(isl_space_join(isl_space_reverse(ran1), ran2)); |
| |
| return isl_space_join(isl_space_reverse(dom), nest); |
| error: |
| isl_space_free(left); |
| isl_space_free(right); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_map_from_set(__isl_take isl_space *dim) |
| { |
| isl_ctx *ctx; |
| isl_id **ids = NULL; |
| |
| if (!dim) |
| return NULL; |
| ctx = isl_space_get_ctx(dim); |
| if (!isl_space_is_set(dim)) |
| isl_die(ctx, isl_error_invalid, "not a set space", goto error); |
| dim = isl_space_cow(dim); |
| if (!dim) |
| return NULL; |
| if (dim->ids) { |
| ids = isl_calloc_array(dim->ctx, isl_id *, |
| dim->nparam + dim->n_out + dim->n_out); |
| if (!ids) |
| goto error; |
| get_ids(dim, isl_dim_param, 0, dim->nparam, ids); |
| get_ids(dim, isl_dim_out, 0, dim->n_out, ids + dim->nparam); |
| } |
| dim->n_in = dim->n_out; |
| if (ids) { |
| free(dim->ids); |
| dim->ids = ids; |
| dim->n_id = dim->nparam + dim->n_out + dim->n_out; |
| dim = copy_ids(dim, isl_dim_out, 0, dim, isl_dim_in); |
| } |
| isl_id_free(dim->tuple_id[0]); |
| dim->tuple_id[0] = isl_id_copy(dim->tuple_id[1]); |
| isl_space_free(dim->nested[0]); |
| dim->nested[0] = isl_space_copy(dim->nested[1]); |
| return dim; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| static __isl_give isl_space *set_ids(__isl_take isl_space *dim, |
| enum isl_dim_type type, |
| unsigned first, unsigned n, __isl_take isl_id **ids) |
| { |
| int i; |
| |
| for (i = 0; i < n ; ++i) |
| dim = set_id(dim, type, first + i, ids[i]); |
| |
| return dim; |
| } |
| |
| __isl_give isl_space *isl_space_reverse(__isl_take isl_space *dim) |
| { |
| unsigned t; |
| isl_space *nested; |
| isl_id **ids = NULL; |
| isl_id *id; |
| |
| if (!dim) |
| return NULL; |
| if (match(dim, isl_dim_in, dim, isl_dim_out)) |
| return dim; |
| |
| dim = isl_space_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| id = dim->tuple_id[0]; |
| dim->tuple_id[0] = dim->tuple_id[1]; |
| dim->tuple_id[1] = id; |
| |
| nested = dim->nested[0]; |
| dim->nested[0] = dim->nested[1]; |
| dim->nested[1] = nested; |
| |
| if (dim->ids) { |
| ids = isl_alloc_array(dim->ctx, isl_id *, |
| dim->n_in + dim->n_out); |
| if (!ids) |
| goto error; |
| get_ids(dim, isl_dim_in, 0, dim->n_in, ids); |
| get_ids(dim, isl_dim_out, 0, dim->n_out, ids + dim->n_in); |
| } |
| |
| t = dim->n_in; |
| dim->n_in = dim->n_out; |
| dim->n_out = t; |
| |
| if (dim->ids) { |
| dim = set_ids(dim, isl_dim_out, 0, dim->n_out, ids); |
| dim = set_ids(dim, isl_dim_in, 0, dim->n_in, ids + dim->n_out); |
| free(ids); |
| } |
| |
| return dim; |
| error: |
| free(ids); |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_drop_dims(__isl_take isl_space *dim, |
| enum isl_dim_type type, unsigned first, unsigned num) |
| { |
| int i; |
| |
| if (!dim) |
| return NULL; |
| |
| if (num == 0) |
| return isl_space_reset(dim, type); |
| |
| if (!valid_dim_type(type)) |
| isl_die(dim->ctx, isl_error_invalid, |
| "cannot drop dimensions of specified type", goto error); |
| |
| isl_assert(dim->ctx, first + num <= n(dim, type), goto error); |
| dim = isl_space_cow(dim); |
| if (!dim) |
| goto error; |
| if (dim->ids) { |
| dim = extend_ids(dim); |
| if (!dim) |
| goto error; |
| for (i = 0; i < num; ++i) |
| isl_id_free(get_id(dim, type, first + i)); |
| for (i = first+num; i < n(dim, type); ++i) |
| set_id(dim, type, i - num, get_id(dim, type, i)); |
| switch (type) { |
| case isl_dim_param: |
| get_ids(dim, isl_dim_in, 0, dim->n_in, |
| dim->ids + offset(dim, isl_dim_in) - num); |
| case isl_dim_in: |
| get_ids(dim, isl_dim_out, 0, dim->n_out, |
| dim->ids + offset(dim, isl_dim_out) - num); |
| default: |
| ; |
| } |
| dim->n_id -= num; |
| } |
| switch (type) { |
| case isl_dim_param: dim->nparam -= num; break; |
| case isl_dim_in: dim->n_in -= num; break; |
| case isl_dim_out: dim->n_out -= num; break; |
| default: ; |
| } |
| dim = isl_space_reset(dim, type); |
| if (type == isl_dim_param) { |
| if (dim && dim->nested[0] && |
| !(dim->nested[0] = isl_space_drop_dims(dim->nested[0], |
| isl_dim_param, first, num))) |
| goto error; |
| if (dim && dim->nested[1] && |
| !(dim->nested[1] = isl_space_drop_dims(dim->nested[1], |
| isl_dim_param, first, num))) |
| goto error; |
| } |
| return dim; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_drop_inputs(__isl_take isl_space *dim, |
| unsigned first, unsigned n) |
| { |
| if (!dim) |
| return NULL; |
| return isl_space_drop_dims(dim, isl_dim_in, first, n); |
| } |
| |
| __isl_give isl_space *isl_space_drop_outputs(__isl_take isl_space *dim, |
| unsigned first, unsigned n) |
| { |
| if (!dim) |
| return NULL; |
| return isl_space_drop_dims(dim, isl_dim_out, first, n); |
| } |
| |
| __isl_give isl_space *isl_space_domain(__isl_take isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| dim = isl_space_drop_outputs(dim, 0, dim->n_out); |
| dim = isl_space_reverse(dim); |
| dim = mark_as_set(dim); |
| return dim; |
| } |
| |
| __isl_give isl_space *isl_space_from_domain(__isl_take isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| if (!isl_space_is_set(dim)) |
| isl_die(isl_space_get_ctx(dim), isl_error_invalid, |
| "not a set space", goto error); |
| dim = isl_space_reverse(dim); |
| dim = isl_space_reset(dim, isl_dim_out); |
| return dim; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_range(__isl_take isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| dim = isl_space_drop_inputs(dim, 0, dim->n_in); |
| dim = mark_as_set(dim); |
| return dim; |
| } |
| |
| __isl_give isl_space *isl_space_from_range(__isl_take isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| if (!isl_space_is_set(dim)) |
| isl_die(isl_space_get_ctx(dim), isl_error_invalid, |
| "not a set space", goto error); |
| return isl_space_reset(dim, isl_dim_in); |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_params(__isl_take isl_space *space) |
| { |
| if (isl_space_is_params(space)) |
| return space; |
| space = isl_space_drop_dims(space, |
| isl_dim_in, 0, isl_space_dim(space, isl_dim_in)); |
| space = isl_space_drop_dims(space, |
| isl_dim_out, 0, isl_space_dim(space, isl_dim_out)); |
| space = mark_as_params(space); |
| return space; |
| } |
| |
| __isl_give isl_space *isl_space_set_from_params(__isl_take isl_space *space) |
| { |
| if (!space) |
| return NULL; |
| if (!isl_space_is_params(space)) |
| isl_die(isl_space_get_ctx(space), isl_error_invalid, |
| "not a parameter space", goto error); |
| return isl_space_reset(space, isl_dim_set); |
| error: |
| isl_space_free(space); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_as_set_space(__isl_take isl_space *dim) |
| { |
| dim = isl_space_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| dim->n_out += dim->n_in; |
| dim->n_in = 0; |
| dim = isl_space_reset(dim, isl_dim_in); |
| dim = isl_space_reset(dim, isl_dim_out); |
| |
| return dim; |
| } |
| |
| __isl_give isl_space *isl_space_underlying(__isl_take isl_space *dim, |
| unsigned n_div) |
| { |
| int i; |
| |
| if (!dim) |
| return NULL; |
| if (n_div == 0 && |
| dim->nparam == 0 && dim->n_in == 0 && dim->n_id == 0) |
| return isl_space_reset(isl_space_reset(dim, isl_dim_in), isl_dim_out); |
| dim = isl_space_cow(dim); |
| if (!dim) |
| return NULL; |
| dim->n_out += dim->nparam + dim->n_in + n_div; |
| dim->nparam = 0; |
| dim->n_in = 0; |
| |
| for (i = 0; i < dim->n_id; ++i) |
| isl_id_free(get_id(dim, isl_dim_out, i)); |
| dim->n_id = 0; |
| dim = isl_space_reset(dim, isl_dim_in); |
| dim = isl_space_reset(dim, isl_dim_out); |
| |
| return dim; |
| } |
| |
| int isl_space_is_equal(__isl_keep isl_space *dim1, __isl_keep isl_space *dim2) |
| { |
| if (!dim1 || !dim2) |
| return -1; |
| if (dim1 == dim2) |
| return 1; |
| return match(dim1, isl_dim_param, dim2, isl_dim_param) && |
| isl_space_tuple_match(dim1, isl_dim_in, dim2, isl_dim_in) && |
| isl_space_tuple_match(dim1, isl_dim_out, dim2, isl_dim_out); |
| } |
| |
| /* Is space1 equal to the domain of space2? |
| */ |
| int isl_space_is_domain(__isl_keep isl_space *space1, |
| __isl_keep isl_space *space2) |
| { |
| if (!space1 || !space2) |
| return -1; |
| if (!isl_space_is_set(space1)) |
| return 0; |
| return match(space1, isl_dim_param, space2, isl_dim_param) && |
| isl_space_tuple_match(space1, isl_dim_set, space2, isl_dim_in); |
| } |
| |
| int isl_space_compatible(__isl_keep isl_space *dim1, |
| __isl_keep isl_space *dim2) |
| { |
| return dim1->nparam == dim2->nparam && |
| dim1->n_in + dim1->n_out == dim2->n_in + dim2->n_out; |
| } |
| |
| static uint32_t isl_hash_dim(uint32_t hash, __isl_keep isl_space *dim) |
| { |
| int i; |
| isl_id *id; |
| |
| if (!dim) |
| return hash; |
| |
| hash = isl_hash_builtin(hash, dim->nparam); |
| hash = isl_hash_builtin(hash, dim->n_in); |
| hash = isl_hash_builtin(hash, dim->n_out); |
| |
| for (i = 0; i < dim->nparam; ++i) { |
| id = get_id(dim, isl_dim_param, i); |
| hash = isl_hash_id(hash, id); |
| } |
| |
| id = tuple_id(dim, isl_dim_in); |
| hash = isl_hash_id(hash, id); |
| id = tuple_id(dim, isl_dim_out); |
| hash = isl_hash_id(hash, id); |
| |
| hash = isl_hash_dim(hash, dim->nested[0]); |
| hash = isl_hash_dim(hash, dim->nested[1]); |
| |
| return hash; |
| } |
| |
| uint32_t isl_space_get_hash(__isl_keep isl_space *dim) |
| { |
| uint32_t hash; |
| |
| if (!dim) |
| return 0; |
| |
| hash = isl_hash_init(); |
| hash = isl_hash_dim(hash, dim); |
| |
| return hash; |
| } |
| |
| int isl_space_is_wrapping(__isl_keep isl_space *dim) |
| { |
| if (!dim) |
| return -1; |
| |
| if (!isl_space_is_set(dim)) |
| return 0; |
| |
| return dim->nested[1] != NULL; |
| } |
| |
| __isl_give isl_space *isl_space_wrap(__isl_take isl_space *dim) |
| { |
| isl_space *wrap; |
| |
| if (!dim) |
| return NULL; |
| |
| wrap = isl_space_set_alloc(dim->ctx, |
| dim->nparam, dim->n_in + dim->n_out); |
| |
| wrap = copy_ids(wrap, isl_dim_param, 0, dim, isl_dim_param); |
| wrap = copy_ids(wrap, isl_dim_set, 0, dim, isl_dim_in); |
| wrap = copy_ids(wrap, isl_dim_set, dim->n_in, dim, isl_dim_out); |
| |
| if (!wrap) |
| goto error; |
| |
| wrap->nested[1] = dim; |
| |
| return wrap; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_space *isl_space_unwrap(__isl_take isl_space *dim) |
| { |
| isl_space *unwrap; |
| |
| if (!dim) |
| return NULL; |
| |
| if (!isl_space_is_wrapping(dim)) |
| isl_die(dim->ctx, isl_error_invalid, "not a wrapping dim", |
| goto error); |
| |
| unwrap = isl_space_copy(dim->nested[1]); |
| isl_space_free(dim); |
| |
| return unwrap; |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| int isl_space_is_named_or_nested(__isl_keep isl_space *dim, enum isl_dim_type type) |
| { |
| if (type != isl_dim_in && type != isl_dim_out) |
| return 0; |
| if (!dim) |
| return -1; |
| if (dim->tuple_id[type - isl_dim_in]) |
| return 1; |
| if (dim->nested[type - isl_dim_in]) |
| return 1; |
| return 0; |
| } |
| |
| int isl_space_may_be_set(__isl_keep isl_space *dim) |
| { |
| if (!dim) |
| return -1; |
| if (isl_space_is_set(dim)) |
| return 1; |
| if (isl_space_dim(dim, isl_dim_in) != 0) |
| return 0; |
| if (isl_space_is_named_or_nested(dim, isl_dim_in)) |
| return 0; |
| return 1; |
| } |
| |
| __isl_give isl_space *isl_space_reset(__isl_take isl_space *dim, |
| enum isl_dim_type type) |
| { |
| if (!isl_space_is_named_or_nested(dim, type)) |
| return dim; |
| |
| dim = isl_space_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| isl_id_free(dim->tuple_id[type - isl_dim_in]); |
| dim->tuple_id[type - isl_dim_in] = NULL; |
| isl_space_free(dim->nested[type - isl_dim_in]); |
| dim->nested[type - isl_dim_in] = NULL; |
| |
| return dim; |
| } |
| |
| __isl_give isl_space *isl_space_flatten(__isl_take isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| if (!dim->nested[0] && !dim->nested[1]) |
| return dim; |
| |
| if (dim->nested[0]) |
| dim = isl_space_reset(dim, isl_dim_in); |
| if (dim && dim->nested[1]) |
| dim = isl_space_reset(dim, isl_dim_out); |
| |
| return dim; |
| } |
| |
| __isl_give isl_space *isl_space_flatten_domain(__isl_take isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| if (!dim->nested[0]) |
| return dim; |
| |
| return isl_space_reset(dim, isl_dim_in); |
| } |
| |
| __isl_give isl_space *isl_space_flatten_range(__isl_take isl_space *dim) |
| { |
| if (!dim) |
| return NULL; |
| if (!dim->nested[1]) |
| return dim; |
| |
| return isl_space_reset(dim, isl_dim_out); |
| } |
| |
| /* Replace the dimensions of the given type of dst by those of src. |
| */ |
| __isl_give isl_space *isl_space_replace(__isl_take isl_space *dst, |
| enum isl_dim_type type, __isl_keep isl_space *src) |
| { |
| dst = isl_space_cow(dst); |
| |
| if (!dst || !src) |
| goto error; |
| |
| dst = isl_space_drop_dims(dst, type, 0, isl_space_dim(dst, type)); |
| dst = isl_space_add_dims(dst, type, isl_space_dim(src, type)); |
| dst = copy_ids(dst, type, 0, src, type); |
| |
| if (dst && type == isl_dim_param) { |
| int i; |
| for (i = 0; i <= 1; ++i) { |
| if (!dst->nested[i]) |
| continue; |
| dst->nested[i] = isl_space_replace(dst->nested[i], |
| type, src); |
| if (!dst->nested[i]) |
| goto error; |
| } |
| } |
| |
| return dst; |
| error: |
| isl_space_free(dst); |
| return NULL; |
| } |
| |
| /* Given a dimension specification "dim" of a set, create a dimension |
| * specification for the lift of the set. In particular, the result |
| * is of the form [dim -> local[..]], with n_local variables in the |
| * range of the wrapped map. |
| */ |
| __isl_give isl_space *isl_space_lift(__isl_take isl_space *dim, unsigned n_local) |
| { |
| isl_space *local_dim; |
| |
| if (!dim) |
| return NULL; |
| |
| local_dim = isl_space_dup(dim); |
| local_dim = isl_space_drop_dims(local_dim, isl_dim_set, 0, dim->n_out); |
| local_dim = isl_space_add_dims(local_dim, isl_dim_set, n_local); |
| local_dim = isl_space_set_tuple_name(local_dim, isl_dim_set, "local"); |
| dim = isl_space_join(isl_space_from_domain(dim), |
| isl_space_from_range(local_dim)); |
| dim = isl_space_wrap(dim); |
| dim = isl_space_set_tuple_name(dim, isl_dim_set, "lifted"); |
| |
| return dim; |
| } |
| |
| int isl_space_can_zip(__isl_keep isl_space *dim) |
| { |
| if (!dim) |
| return -1; |
| |
| return dim->nested[0] && dim->nested[1]; |
| } |
| |
| __isl_give isl_space *isl_space_zip(__isl_take isl_space *dim) |
| { |
| isl_space *dom, *ran; |
| isl_space *dom_dom, *dom_ran, *ran_dom, *ran_ran; |
| |
| if (!isl_space_can_zip(dim)) |
| isl_die(dim->ctx, isl_error_invalid, "dim cannot be zipped", |
| goto error); |
| |
| if (!dim) |
| return 0; |
| dom = isl_space_unwrap(isl_space_domain(isl_space_copy(dim))); |
| ran = isl_space_unwrap(isl_space_range(dim)); |
| dom_dom = isl_space_domain(isl_space_copy(dom)); |
| dom_ran = isl_space_range(dom); |
| ran_dom = isl_space_domain(isl_space_copy(ran)); |
| ran_ran = isl_space_range(ran); |
| dom = isl_space_join(isl_space_from_domain(dom_dom), |
| isl_space_from_range(ran_dom)); |
| ran = isl_space_join(isl_space_from_domain(dom_ran), |
| isl_space_from_range(ran_ran)); |
| return isl_space_join(isl_space_from_domain(isl_space_wrap(dom)), |
| isl_space_from_range(isl_space_wrap(ran))); |
| error: |
| isl_space_free(dim); |
| return NULL; |
| } |
| |
| int isl_space_has_named_params(__isl_keep isl_space *dim) |
| { |
| int i; |
| unsigned off; |
| |
| if (!dim) |
| return -1; |
| if (dim->nparam == 0) |
| return 1; |
| off = isl_space_offset(dim, isl_dim_param); |
| if (off + dim->nparam > dim->n_id) |
| return 0; |
| for (i = 0; i < dim->nparam; ++i) |
| if (!dim->ids[off + i]) |
| return 0; |
| return 1; |
| } |
| |
| /* Align the initial parameters of dim1 to match the order in dim2. |
| */ |
| __isl_give isl_space *isl_space_align_params(__isl_take isl_space *dim1, |
| __isl_take isl_space *dim2) |
| { |
| isl_reordering *exp; |
| |
| if (!isl_space_has_named_params(dim1) || !isl_space_has_named_params(dim2)) |
| isl_die(isl_space_get_ctx(dim1), isl_error_invalid, |
| "parameter alignment requires named parameters", |
| goto error); |
| |
| dim2 = isl_space_params(dim2); |
| exp = isl_parameter_alignment_reordering(dim1, dim2); |
| exp = isl_reordering_extend_space(exp, dim1); |
| isl_space_free(dim2); |
| if (!exp) |
| return NULL; |
| dim1 = isl_space_copy(exp->dim); |
| isl_reordering_free(exp); |
| return dim1; |
| error: |
| isl_space_free(dim1); |
| isl_space_free(dim2); |
| return NULL; |
| } |
| |
| /* Given the space of set (domain), construct a space for a map |
| * with as domain the given space and as range the range of "model". |
| */ |
| __isl_give isl_space *isl_space_extend_domain_with_range( |
| __isl_take isl_space *domain, __isl_take isl_space *model) |
| { |
| isl_space *space; |
| |
| space = isl_space_from_domain(domain); |
| space = isl_space_add_dims(space, isl_dim_out, |
| isl_space_dim(model, isl_dim_out)); |
| if (isl_space_has_tuple_id(model, isl_dim_out)) |
| space = isl_space_set_tuple_id(space, isl_dim_out, |
| isl_space_get_tuple_id(model, isl_dim_out)); |
| isl_space_free(model); |
| return space; |
| } |