| /* |
| * 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_dim_private.h> |
| #include "isl_name.h" |
| #include <isl_reordering.h> |
| |
| isl_ctx *isl_dim_get_ctx(__isl_keep isl_dim *dim) |
| { |
| return dim ? dim->ctx : NULL; |
| } |
| |
| struct isl_dim *isl_dim_alloc(struct isl_ctx *ctx, |
| unsigned nparam, unsigned n_in, unsigned n_out) |
| { |
| struct isl_dim *dim; |
| |
| dim = isl_alloc_type(ctx, struct isl_dim); |
| 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_name[0] = NULL; |
| dim->tuple_name[1] = NULL; |
| |
| dim->nested[0] = NULL; |
| dim->nested[1] = NULL; |
| |
| dim->n_name = 0; |
| dim->names = NULL; |
| |
| return dim; |
| } |
| |
| struct isl_dim *isl_dim_set_alloc(struct isl_ctx *ctx, |
| unsigned nparam, unsigned dim) |
| { |
| return isl_dim_alloc(ctx, nparam, 0, dim); |
| } |
| |
| static unsigned global_pos(struct isl_dim *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_dim_total(dim)); |
| return pos; |
| case isl_dim_in: |
| isl_assert(ctx, pos < dim->n_in, return isl_dim_total(dim)); |
| return pos + dim->nparam; |
| case isl_dim_out: |
| isl_assert(ctx, pos < dim->n_out, return isl_dim_total(dim)); |
| return pos + dim->nparam + dim->n_in; |
| default: |
| isl_assert(ctx, 0, return isl_dim_total(dim)); |
| } |
| return isl_dim_total(dim); |
| } |
| |
| /* Extend length of names array to the total number of dimensions. |
| */ |
| static __isl_give isl_dim *extend_names(__isl_take isl_dim *dim) |
| { |
| struct isl_name **names; |
| int i; |
| |
| if (isl_dim_total(dim) <= dim->n_name) |
| return dim; |
| |
| if (!dim->names) { |
| dim->names = isl_calloc_array(dim->ctx, |
| struct isl_name *, isl_dim_total(dim)); |
| if (!dim->names) |
| goto error; |
| } else { |
| names = isl_realloc_array(dim->ctx, dim->names, |
| struct isl_name *, isl_dim_total(dim)); |
| if (!names) |
| goto error; |
| dim->names = names; |
| for (i = dim->n_name; i < isl_dim_total(dim); ++i) |
| dim->names[i] = NULL; |
| } |
| |
| dim->n_name = isl_dim_total(dim); |
| |
| return dim; |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| static struct isl_dim *set_name(struct isl_dim *dim, |
| enum isl_dim_type type, unsigned pos, |
| struct isl_name *name) |
| { |
| struct isl_ctx *ctx = dim->ctx; |
| dim = isl_dim_cow(dim); |
| |
| if (!dim) |
| goto error; |
| |
| pos = global_pos(dim, type, pos); |
| if (pos == isl_dim_total(dim)) |
| goto error; |
| |
| if (pos >= dim->n_name) { |
| if (!name) |
| return dim; |
| dim = extend_names(dim); |
| if (!dim) |
| goto error; |
| } |
| |
| dim->names[pos] = name; |
| |
| return dim; |
| error: |
| isl_name_free(ctx, name); |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| static struct isl_name *get_name(struct isl_dim *dim, |
| enum isl_dim_type type, unsigned pos) |
| { |
| if (!dim) |
| return NULL; |
| |
| pos = global_pos(dim, type, pos); |
| if (pos == isl_dim_total(dim)) |
| return NULL; |
| if (pos >= dim->n_name) |
| return NULL; |
| return dim->names[pos]; |
| } |
| |
| static unsigned offset(struct isl_dim *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(struct isl_dim *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_dim_size(struct isl_dim *dim, enum isl_dim_type type) |
| { |
| if (!dim) |
| return 0; |
| return n(dim, type); |
| } |
| |
| unsigned isl_dim_offset(__isl_keep isl_dim *dim, enum isl_dim_type type) |
| { |
| if (!dim) |
| return 0; |
| return offset(dim, type); |
| } |
| |
| static struct isl_dim *copy_names(struct isl_dim *dst, |
| enum isl_dim_type dst_type, unsigned offset, struct isl_dim *src, |
| enum isl_dim_type src_type) |
| { |
| int i; |
| struct isl_name *name; |
| |
| if (!dst) |
| return NULL; |
| |
| for (i = 0; i < n(src, src_type); ++i) { |
| name = get_name(src, src_type, i); |
| if (!name) |
| continue; |
| dst = set_name(dst, dst_type, offset + i, |
| isl_name_copy(dst->ctx, name)); |
| if (!dst) |
| return NULL; |
| } |
| return dst; |
| } |
| |
| struct isl_dim *isl_dim_dup(struct isl_dim *dim) |
| { |
| struct isl_dim *dup; |
| if (!dim) |
| return NULL; |
| dup = isl_dim_alloc(dim->ctx, dim->nparam, dim->n_in, dim->n_out); |
| if (dim->tuple_name[0] && |
| !(dup->tuple_name[0] = isl_name_copy(dim->ctx, dim->tuple_name[0]))) |
| goto error; |
| if (dim->tuple_name[1] && |
| !(dup->tuple_name[1] = isl_name_copy(dim->ctx, dim->tuple_name[1]))) |
| goto error; |
| if (dim->nested[0] && !(dup->nested[0] = isl_dim_copy(dim->nested[0]))) |
| goto error; |
| if (dim->nested[1] && !(dup->nested[1] = isl_dim_copy(dim->nested[1]))) |
| goto error; |
| if (!dim->names) |
| return dup; |
| dup = copy_names(dup, isl_dim_param, 0, dim, isl_dim_param); |
| dup = copy_names(dup, isl_dim_in, 0, dim, isl_dim_in); |
| dup = copy_names(dup, isl_dim_out, 0, dim, isl_dim_out); |
| return dup; |
| error: |
| isl_dim_free(dup); |
| return NULL; |
| } |
| |
| struct isl_dim *isl_dim_cow(struct isl_dim *dim) |
| { |
| if (!dim) |
| return NULL; |
| |
| if (dim->ref == 1) |
| return dim; |
| dim->ref--; |
| return isl_dim_dup(dim); |
| } |
| |
| struct isl_dim *isl_dim_copy(struct isl_dim *dim) |
| { |
| if (!dim) |
| return NULL; |
| |
| dim->ref++; |
| return dim; |
| } |
| |
| void isl_dim_free(struct isl_dim *dim) |
| { |
| int i; |
| |
| if (!dim) |
| return; |
| |
| if (--dim->ref > 0) |
| return; |
| |
| isl_name_free(dim->ctx, dim->tuple_name[0]); |
| isl_name_free(dim->ctx, dim->tuple_name[1]); |
| |
| isl_dim_free(dim->nested[0]); |
| isl_dim_free(dim->nested[1]); |
| |
| for (i = 0; i < dim->n_name; ++i) |
| isl_name_free(dim->ctx, dim->names[i]); |
| free(dim->names); |
| 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; |
| } |
| |
| __isl_give isl_dim *isl_dim_set_tuple_name(__isl_take isl_dim *dim, |
| enum isl_dim_type type, const char *s) |
| { |
| struct isl_name *name; |
| |
| dim = isl_dim_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); |
| if (!s) { |
| name = NULL; |
| } else { |
| if (!name_ok(dim->ctx, s)) |
| goto error; |
| name = isl_name_get(dim->ctx, s); |
| if (!name) |
| goto error; |
| } |
| |
| isl_name_free(dim->ctx, dim->tuple_name[type - isl_dim_in]); |
| dim->tuple_name[type - isl_dim_in] = name; |
| |
| return dim; |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| const char *isl_dim_get_tuple_name(__isl_keep isl_dim *dim, |
| enum isl_dim_type type) |
| { |
| struct isl_name *name; |
| if (!dim) |
| return NULL; |
| if (type != isl_dim_in && type != isl_dim_out) |
| return NULL; |
| name = dim->tuple_name[type - isl_dim_in]; |
| return name ? name->name : NULL; |
| } |
| |
| struct isl_dim *isl_dim_set_name(struct isl_dim *dim, |
| enum isl_dim_type type, unsigned pos, |
| const char *s) |
| { |
| struct isl_name *name; |
| |
| if (!dim) |
| return NULL; |
| if (!name_ok(dim->ctx, s)) |
| goto error; |
| isl_name_free(dim->ctx, get_name(dim, type, pos)); |
| name = isl_name_get(dim->ctx, s); |
| if (!name) |
| goto error; |
| return set_name(dim, type, pos, name); |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| const char *isl_dim_get_name(struct isl_dim *dim, |
| enum isl_dim_type type, unsigned pos) |
| { |
| struct isl_name *name = get_name(dim, type, pos); |
| return name ? name->name : NULL; |
| } |
| |
| static struct isl_name *tuple_name(__isl_keep isl_dim *dim, |
| enum isl_dim_type type) |
| { |
| if (!dim) |
| return NULL; |
| if (type == isl_dim_in) |
| return dim->tuple_name[0]; |
| if (type == isl_dim_out) |
| return dim->tuple_name[1]; |
| return NULL; |
| } |
| |
| static __isl_keep isl_dim *nested(__isl_keep isl_dim *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_dim_tuple_match(__isl_keep isl_dim *dim1, enum isl_dim_type dim1_type, |
| __isl_keep isl_dim *dim2, enum isl_dim_type dim2_type) |
| { |
| struct isl_name *name1, *name2; |
| isl_dim *nested1, *nested2; |
| |
| if (n(dim1, dim1_type) != n(dim2, dim2_type)) |
| return 0; |
| name1 = tuple_name(dim1, dim1_type); |
| name2 = tuple_name(dim2, dim2_type); |
| if (!name1 ^ !name2) |
| return 0; |
| if (name1 && name1->name != name2->name) |
| return 0; |
| nested1 = nested(dim1, dim1_type); |
| nested2 = nested(dim2, dim2_type); |
| if (!nested1 ^ !nested2) |
| return 0; |
| if (nested1 && !isl_dim_equal(nested1, nested2)) |
| return 0; |
| return 1; |
| } |
| |
| static int match(struct isl_dim *dim1, enum isl_dim_type dim1_type, |
| struct isl_dim *dim2, enum isl_dim_type dim2_type) |
| { |
| int i; |
| |
| if (!isl_dim_tuple_match(dim1, dim1_type, dim2, dim2_type)) |
| return 0; |
| |
| if (!dim1->names && !dim2->names) |
| return 1; |
| |
| for (i = 0; i < n(dim1, dim1_type); ++i) { |
| if (get_name(dim1, dim1_type, i) != |
| get_name(dim2, dim2_type, i)) |
| return 0; |
| } |
| return 1; |
| } |
| |
| int isl_dim_match(struct isl_dim *dim1, enum isl_dim_type dim1_type, |
| struct isl_dim *dim2, enum isl_dim_type dim2_type) |
| { |
| return match(dim1, dim1_type, dim2, dim2_type); |
| } |
| |
| static void get_names(struct isl_dim *dim, enum isl_dim_type type, |
| unsigned first, unsigned n, struct isl_name **names) |
| { |
| int i; |
| |
| for (i = 0; i < n ; ++i) |
| names[i] = get_name(dim, type, first+i); |
| } |
| |
| struct isl_dim *isl_dim_extend(struct isl_dim *dim, |
| unsigned nparam, unsigned n_in, unsigned n_out) |
| { |
| struct isl_name **names = 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_dim_cow(dim); |
| |
| if (dim->names) { |
| names = isl_calloc_array(dim->ctx, struct isl_name *, |
| nparam + n_in + n_out); |
| if (!names) |
| goto error; |
| get_names(dim, isl_dim_param, 0, dim->nparam, names); |
| get_names(dim, isl_dim_in, 0, dim->n_in, names + nparam); |
| get_names(dim, isl_dim_out, 0, dim->n_out, |
| names + nparam + n_in); |
| free(dim->names); |
| dim->names = names; |
| dim->n_name = nparam + n_in + n_out; |
| } |
| dim->nparam = nparam; |
| dim->n_in = n_in; |
| dim->n_out = n_out; |
| |
| return dim; |
| error: |
| free(names); |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| struct isl_dim *isl_dim_add(struct isl_dim *dim, enum isl_dim_type type, |
| unsigned n) |
| { |
| if (!dim) |
| return NULL; |
| dim = isl_dim_reset(dim, type); |
| switch (type) { |
| case isl_dim_param: |
| dim = isl_dim_extend(dim, |
| dim->nparam + n, dim->n_in, dim->n_out); |
| if (dim && dim->nested[0] && |
| !(dim->nested[0] = isl_dim_add(dim->nested[0], |
| isl_dim_param, n))) |
| goto error; |
| if (dim && dim->nested[1] && |
| !(dim->nested[1] = isl_dim_add(dim->nested[1], |
| isl_dim_param, n))) |
| goto error; |
| return dim; |
| case isl_dim_in: |
| return isl_dim_extend(dim, |
| dim->nparam, dim->n_in + n, dim->n_out); |
| case isl_dim_out: |
| return isl_dim_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_dim_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_dim *isl_dim_insert(__isl_take isl_dim *dim, |
| enum isl_dim_type type, unsigned pos, unsigned n) |
| { |
| struct isl_name **names = NULL; |
| |
| if (!dim) |
| return NULL; |
| if (n == 0) |
| return isl_dim_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_dim_size(dim, type), goto error); |
| |
| dim = isl_dim_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| if (dim->names) { |
| enum isl_dim_type t; |
| int off; |
| int s[3]; |
| int *size = s - isl_dim_param; |
| names = isl_calloc_array(dim->ctx, struct isl_name *, |
| dim->nparam + dim->n_in + dim->n_out + n); |
| if (!names) |
| 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_names(dim, t, 0, size[t], names + off); |
| off += size[t]; |
| } else { |
| get_names(dim, t, 0, pos, names + off); |
| off += pos + n; |
| get_names(dim, t, pos, size[t]-pos, names+off); |
| off += size[t] - pos; |
| } |
| } |
| free(dim->names); |
| dim->names = names; |
| dim->n_name = 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_dim_reset(dim, type); |
| |
| return dim; |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_dim *isl_dim_move(__isl_take isl_dim *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_dim_size(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_dim_reset(dim, src_type); |
| dim = isl_dim_reset(dim, dst_type); |
| |
| dim = isl_dim_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| if (dim->names) { |
| struct isl_name **names; |
| enum isl_dim_type t; |
| int off; |
| int s[3]; |
| int *size = s - isl_dim_param; |
| names = isl_calloc_array(dim->ctx, struct isl_name *, |
| dim->nparam + dim->n_in + dim->n_out); |
| if (!names) |
| 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_names(dim, t, 0, dst_pos, names + off); |
| off += dst_pos; |
| get_names(dim, src_type, src_pos, n, names+off); |
| off += n; |
| get_names(dim, t, dst_pos, size[t] - dst_pos, |
| names + off); |
| off += size[t] - dst_pos; |
| } else if (t == src_type) { |
| get_names(dim, t, 0, src_pos, names + off); |
| off += src_pos; |
| get_names(dim, t, src_pos + n, |
| size[t] - src_pos - n, names + off); |
| off += size[t] - src_pos - n; |
| } else { |
| get_names(dim, t, 0, size[t], names + off); |
| off += size[t]; |
| } |
| } |
| free(dim->names); |
| dim->names = names; |
| dim->n_name = 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_dim_replace(dim->nested[i], |
| isl_dim_param, dim); |
| if (!dim->nested[i]) |
| goto error; |
| } |
| |
| return dim; |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| struct isl_dim *isl_dim_join(struct isl_dim *left, struct isl_dim *right) |
| { |
| struct isl_dim *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_dim_tuple_match(left, isl_dim_out, right, isl_dim_in), |
| goto error); |
| |
| dim = isl_dim_alloc(left->ctx, left->nparam, left->n_in, right->n_out); |
| if (!dim) |
| goto error; |
| |
| dim = copy_names(dim, isl_dim_param, 0, left, isl_dim_param); |
| dim = copy_names(dim, isl_dim_in, 0, left, isl_dim_in); |
| dim = copy_names(dim, isl_dim_out, 0, right, isl_dim_out); |
| |
| if (dim && left->tuple_name[0] && |
| !(dim->tuple_name[0] = isl_name_copy(dim->ctx, left->tuple_name[0]))) |
| goto error; |
| if (dim && right->tuple_name[1] && |
| !(dim->tuple_name[1] = isl_name_copy(dim->ctx, right->tuple_name[1]))) |
| goto error; |
| if (dim && left->nested[0] && |
| !(dim->nested[0] = isl_dim_copy(left->nested[0]))) |
| goto error; |
| if (dim && right->nested[1] && |
| !(dim->nested[1] = isl_dim_copy(right->nested[1]))) |
| goto error; |
| |
| isl_dim_free(left); |
| isl_dim_free(right); |
| |
| return dim; |
| error: |
| isl_dim_free(left); |
| isl_dim_free(right); |
| return NULL; |
| } |
| |
| struct isl_dim *isl_dim_product(struct isl_dim *left, struct isl_dim *right) |
| { |
| isl_dim *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_dim_domain(isl_dim_copy(left)); |
| dom2 = isl_dim_domain(isl_dim_copy(right)); |
| nest1 = isl_dim_wrap(isl_dim_join(isl_dim_reverse(dom1), dom2)); |
| |
| dom1 = isl_dim_range(left); |
| dom2 = isl_dim_range(right); |
| nest2 = isl_dim_wrap(isl_dim_join(isl_dim_reverse(dom1), dom2)); |
| |
| return isl_dim_join(isl_dim_reverse(nest1), nest2); |
| error: |
| isl_dim_free(left); |
| isl_dim_free(right); |
| return NULL; |
| } |
| |
| __isl_give isl_dim *isl_dim_range_product(__isl_take isl_dim *left, |
| __isl_take isl_dim *right) |
| { |
| isl_dim *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_dim_match(left, isl_dim_in, right, isl_dim_in)) |
| isl_die(left->ctx, isl_error_invalid, |
| "domains need to match", goto error); |
| |
| dom = isl_dim_domain(isl_dim_copy(left)); |
| |
| ran1 = isl_dim_range(left); |
| ran2 = isl_dim_range(right); |
| nest = isl_dim_wrap(isl_dim_join(isl_dim_reverse(ran1), ran2)); |
| |
| return isl_dim_join(isl_dim_reverse(dom), nest); |
| error: |
| isl_dim_free(left); |
| isl_dim_free(right); |
| return NULL; |
| } |
| |
| __isl_give isl_dim *isl_dim_map_from_set(__isl_take isl_dim *dim) |
| { |
| struct isl_name **names = NULL; |
| |
| if (!dim) |
| return NULL; |
| isl_assert(dim->ctx, dim->n_in == 0, goto error); |
| if (dim->n_out == 0 && !isl_dim_is_named_or_nested(dim, isl_dim_out)) |
| return dim; |
| dim = isl_dim_cow(dim); |
| if (!dim) |
| return NULL; |
| if (dim->names) { |
| names = isl_calloc_array(dim->ctx, struct isl_name *, |
| dim->nparam + dim->n_out + dim->n_out); |
| if (!names) |
| goto error; |
| get_names(dim, isl_dim_param, 0, dim->nparam, names); |
| get_names(dim, isl_dim_out, 0, dim->n_out, names + dim->nparam); |
| } |
| dim->n_in = dim->n_out; |
| if (names) { |
| free(dim->names); |
| dim->names = names; |
| dim->n_name = dim->nparam + dim->n_out + dim->n_out; |
| dim = copy_names(dim, isl_dim_out, 0, dim, isl_dim_in); |
| } |
| isl_name_free(dim->ctx, dim->tuple_name[0]); |
| dim->tuple_name[0] = isl_name_copy(dim->ctx, dim->tuple_name[1]); |
| isl_dim_free(dim->nested[0]); |
| dim->nested[0] = isl_dim_copy(dim->nested[1]); |
| return dim; |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| static struct isl_dim *set_names(struct isl_dim *dim, enum isl_dim_type type, |
| unsigned first, unsigned n, struct isl_name **names) |
| { |
| int i; |
| |
| for (i = 0; i < n ; ++i) |
| dim = set_name(dim, type, first+i, names[i]); |
| |
| return dim; |
| } |
| |
| struct isl_dim *isl_dim_reverse(struct isl_dim *dim) |
| { |
| unsigned t; |
| isl_dim *nested; |
| struct isl_name **names = NULL; |
| struct isl_name *name; |
| |
| if (!dim) |
| return NULL; |
| if (match(dim, isl_dim_in, dim, isl_dim_out)) |
| return dim; |
| |
| dim = isl_dim_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| name = dim->tuple_name[0]; |
| dim->tuple_name[0] = dim->tuple_name[1]; |
| dim->tuple_name[1] = name; |
| |
| nested = dim->nested[0]; |
| dim->nested[0] = dim->nested[1]; |
| dim->nested[1] = nested; |
| |
| if (dim->names) { |
| names = isl_alloc_array(dim->ctx, struct isl_name *, |
| dim->n_in + dim->n_out); |
| if (!names) |
| goto error; |
| get_names(dim, isl_dim_in, 0, dim->n_in, names); |
| get_names(dim, isl_dim_out, 0, dim->n_out, names + dim->n_in); |
| } |
| |
| t = dim->n_in; |
| dim->n_in = dim->n_out; |
| dim->n_out = t; |
| |
| if (dim->names) { |
| dim = set_names(dim, isl_dim_out, 0, dim->n_out, names); |
| dim = set_names(dim, isl_dim_in, 0, dim->n_in, names + dim->n_out); |
| free(names); |
| } |
| |
| return dim; |
| error: |
| free(names); |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| struct isl_dim *isl_dim_drop(struct isl_dim *dim, enum isl_dim_type type, |
| unsigned first, unsigned num) |
| { |
| int i; |
| |
| if (!dim) |
| return NULL; |
| |
| if (num == 0) |
| return isl_dim_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_dim_cow(dim); |
| if (!dim) |
| goto error; |
| if (dim->names) { |
| dim = extend_names(dim); |
| if (!dim) |
| goto error; |
| for (i = 0; i < num; ++i) |
| isl_name_free(dim->ctx, get_name(dim, type, first+i)); |
| for (i = first+num; i < n(dim, type); ++i) |
| set_name(dim, type, i - num, get_name(dim, type, i)); |
| switch (type) { |
| case isl_dim_param: |
| get_names(dim, isl_dim_in, 0, dim->n_in, |
| dim->names + offset(dim, isl_dim_in) - num); |
| case isl_dim_in: |
| get_names(dim, isl_dim_out, 0, dim->n_out, |
| dim->names + offset(dim, isl_dim_out) - num); |
| default: |
| ; |
| } |
| dim->n_name -= 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_dim_reset(dim, type); |
| if (type == isl_dim_param) { |
| if (dim && dim->nested[0] && |
| !(dim->nested[0] = isl_dim_drop(dim->nested[0], |
| isl_dim_param, first, num))) |
| goto error; |
| if (dim && dim->nested[1] && |
| !(dim->nested[1] = isl_dim_drop(dim->nested[1], |
| isl_dim_param, first, num))) |
| goto error; |
| } |
| return dim; |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| struct isl_dim *isl_dim_drop_inputs(struct isl_dim *dim, |
| unsigned first, unsigned n) |
| { |
| if (!dim) |
| return NULL; |
| return isl_dim_drop(dim, isl_dim_in, first, n); |
| } |
| |
| struct isl_dim *isl_dim_drop_outputs(struct isl_dim *dim, |
| unsigned first, unsigned n) |
| { |
| if (!dim) |
| return NULL; |
| return isl_dim_drop(dim, isl_dim_out, first, n); |
| } |
| |
| struct isl_dim *isl_dim_domain(struct isl_dim *dim) |
| { |
| if (!dim) |
| return NULL; |
| dim = isl_dim_drop_outputs(dim, 0, dim->n_out); |
| return isl_dim_reverse(dim); |
| } |
| |
| __isl_give isl_dim *isl_dim_from_domain(__isl_take isl_dim *dim) |
| { |
| return isl_dim_reverse(dim); |
| } |
| |
| struct isl_dim *isl_dim_range(struct isl_dim *dim) |
| { |
| if (!dim) |
| return NULL; |
| return isl_dim_drop_inputs(dim, 0, dim->n_in); |
| } |
| |
| __isl_give isl_dim *isl_dim_from_range(__isl_take isl_dim *dim) |
| { |
| return dim; |
| } |
| |
| __isl_give isl_dim *isl_dim_as_set_dim(__isl_take isl_dim *dim) |
| { |
| dim = isl_dim_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| dim->n_out += dim->n_in; |
| dim->n_in = 0; |
| dim = isl_dim_reset(dim, isl_dim_in); |
| dim = isl_dim_reset(dim, isl_dim_out); |
| |
| return dim; |
| } |
| |
| struct isl_dim *isl_dim_underlying(struct isl_dim *dim, unsigned n_div) |
| { |
| int i; |
| |
| if (!dim) |
| return NULL; |
| if (n_div == 0 && |
| dim->nparam == 0 && dim->n_in == 0 && dim->n_name == 0) |
| return isl_dim_reset(isl_dim_reset(dim, isl_dim_in), isl_dim_out); |
| dim = isl_dim_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_name; ++i) |
| isl_name_free(dim->ctx, get_name(dim, isl_dim_out, i)); |
| dim->n_name = 0; |
| dim = isl_dim_reset(dim, isl_dim_in); |
| dim = isl_dim_reset(dim, isl_dim_out); |
| |
| return dim; |
| } |
| |
| unsigned isl_dim_total(struct isl_dim *dim) |
| { |
| return dim ? dim->nparam + dim->n_in + dim->n_out : 0; |
| } |
| |
| int isl_dim_equal(struct isl_dim *dim1, struct isl_dim *dim2) |
| { |
| return match(dim1, isl_dim_param, dim2, isl_dim_param) && |
| isl_dim_tuple_match(dim1, isl_dim_in, dim2, isl_dim_in) && |
| isl_dim_tuple_match(dim1, isl_dim_out, dim2, isl_dim_out); |
| } |
| |
| int isl_dim_compatible(struct isl_dim *dim1, struct isl_dim *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_dim *dim) |
| { |
| int i; |
| struct isl_name *name; |
| |
| 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) { |
| name = get_name(dim, isl_dim_param, i); |
| hash = isl_hash_name(hash, name); |
| } |
| |
| name = tuple_name(dim, isl_dim_in); |
| hash = isl_hash_name(hash, name); |
| name = tuple_name(dim, isl_dim_out); |
| hash = isl_hash_name(hash, name); |
| |
| hash = isl_hash_dim(hash, dim->nested[0]); |
| hash = isl_hash_dim(hash, dim->nested[1]); |
| |
| return hash; |
| } |
| |
| uint32_t isl_dim_get_hash(__isl_keep isl_dim *dim) |
| { |
| uint32_t hash; |
| |
| if (!dim) |
| return 0; |
| |
| hash = isl_hash_init(); |
| hash = isl_hash_dim(hash, dim); |
| |
| return hash; |
| } |
| |
| int isl_dim_is_wrapping(__isl_keep isl_dim *dim) |
| { |
| if (!dim) |
| return -1; |
| |
| if (dim->n_in != 0 || dim->tuple_name[0] || dim->nested[0]) |
| return 0; |
| |
| return dim->nested[1] != NULL; |
| } |
| |
| __isl_give isl_dim *isl_dim_wrap(__isl_take isl_dim *dim) |
| { |
| isl_dim *wrap; |
| |
| if (!dim) |
| return NULL; |
| |
| wrap = isl_dim_alloc(dim->ctx, dim->nparam, 0, dim->n_in + dim->n_out); |
| |
| wrap = copy_names(wrap, isl_dim_param, 0, dim, isl_dim_param); |
| wrap = copy_names(wrap, isl_dim_set, 0, dim, isl_dim_in); |
| wrap = copy_names(wrap, isl_dim_set, dim->n_in, dim, isl_dim_out); |
| |
| if (!wrap) |
| goto error; |
| |
| wrap->nested[1] = dim; |
| |
| return wrap; |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| __isl_give isl_dim *isl_dim_unwrap(__isl_take isl_dim *dim) |
| { |
| isl_dim *unwrap; |
| |
| if (!dim) |
| return NULL; |
| |
| if (!isl_dim_is_wrapping(dim)) |
| isl_die(dim->ctx, isl_error_invalid, "not a wrapping dim", |
| goto error); |
| |
| unwrap = isl_dim_copy(dim->nested[1]); |
| isl_dim_free(dim); |
| |
| return unwrap; |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| int isl_dim_is_named_or_nested(__isl_keep isl_dim *dim, enum isl_dim_type type) |
| { |
| if (type != isl_dim_in && type != isl_dim_out) |
| return 0; |
| if (!dim) |
| return -1; |
| if (dim->tuple_name[type - isl_dim_in]) |
| return 1; |
| if (dim->nested[type - isl_dim_in]) |
| return 1; |
| return 0; |
| } |
| |
| int isl_dim_may_be_set(__isl_keep isl_dim *dim) |
| { |
| if (!dim) |
| return -1; |
| if (isl_dim_size(dim, isl_dim_in) != 0) |
| return 0; |
| if (isl_dim_is_named_or_nested(dim, isl_dim_in)) |
| return 0; |
| return 1; |
| } |
| |
| __isl_give isl_dim *isl_dim_reset(__isl_take isl_dim *dim, |
| enum isl_dim_type type) |
| { |
| if (!isl_dim_is_named_or_nested(dim, type)) |
| return dim; |
| |
| dim = isl_dim_cow(dim); |
| if (!dim) |
| return NULL; |
| |
| isl_name_free(dim->ctx, dim->tuple_name[type - isl_dim_in]); |
| dim->tuple_name[type - isl_dim_in] = NULL; |
| isl_dim_free(dim->nested[type - isl_dim_in]); |
| dim->nested[type - isl_dim_in] = NULL; |
| |
| return dim; |
| } |
| |
| __isl_give isl_dim *isl_dim_flatten(__isl_take isl_dim *dim) |
| { |
| if (!dim) |
| return NULL; |
| if (!dim->nested[0] && !dim->nested[1]) |
| return dim; |
| |
| if (dim->nested[0]) |
| dim = isl_dim_reset(dim, isl_dim_in); |
| if (dim && dim->nested[1]) |
| dim = isl_dim_reset(dim, isl_dim_out); |
| |
| return dim; |
| } |
| |
| __isl_give isl_dim *isl_dim_flatten_range(__isl_take isl_dim *dim) |
| { |
| if (!dim) |
| return NULL; |
| if (!dim->nested[1]) |
| return dim; |
| |
| return isl_dim_reset(dim, isl_dim_out); |
| } |
| |
| /* Replace the dimensions of the given type of dst by those of src. |
| */ |
| __isl_give isl_dim *isl_dim_replace(__isl_take isl_dim *dst, |
| enum isl_dim_type type, __isl_keep isl_dim *src) |
| { |
| dst = isl_dim_cow(dst); |
| |
| if (!dst || !src) |
| goto error; |
| |
| dst = isl_dim_drop(dst, type, 0, isl_dim_size(dst, type)); |
| dst = isl_dim_add(dst, type, isl_dim_size(src, type)); |
| dst = copy_names(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_dim_replace(dst->nested[i], |
| type, src); |
| if (!dst->nested[i]) |
| goto error; |
| } |
| } |
| |
| return dst; |
| error: |
| isl_dim_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_dim *isl_dim_lift(__isl_take isl_dim *dim, unsigned n_local) |
| { |
| isl_dim *local_dim; |
| |
| if (!dim) |
| return NULL; |
| |
| local_dim = isl_dim_dup(dim); |
| local_dim = isl_dim_drop(local_dim, isl_dim_set, 0, dim->n_out); |
| local_dim = isl_dim_add(local_dim, isl_dim_set, n_local); |
| local_dim = isl_dim_set_tuple_name(local_dim, isl_dim_set, "local"); |
| dim = isl_dim_join(isl_dim_from_domain(dim), |
| isl_dim_from_range(local_dim)); |
| dim = isl_dim_wrap(dim); |
| dim = isl_dim_set_tuple_name(dim, isl_dim_set, "lifted"); |
| |
| return dim; |
| } |
| |
| int isl_dim_can_zip(__isl_keep isl_dim *dim) |
| { |
| if (!dim) |
| return -1; |
| |
| return dim->nested[0] && dim->nested[1]; |
| } |
| |
| __isl_give isl_dim *isl_dim_zip(__isl_take isl_dim *dim) |
| { |
| isl_dim *dom, *ran; |
| isl_dim *dom_dom, *dom_ran, *ran_dom, *ran_ran; |
| |
| if (!isl_dim_can_zip(dim)) |
| isl_die(dim->ctx, isl_error_invalid, "dim cannot be zipped", |
| goto error); |
| |
| if (!dim) |
| return 0; |
| dom = isl_dim_unwrap(isl_dim_domain(isl_dim_copy(dim))); |
| ran = isl_dim_unwrap(isl_dim_range(dim)); |
| dom_dom = isl_dim_domain(isl_dim_copy(dom)); |
| dom_ran = isl_dim_range(dom); |
| ran_dom = isl_dim_domain(isl_dim_copy(ran)); |
| ran_ran = isl_dim_range(ran); |
| dom = isl_dim_join(isl_dim_from_domain(dom_dom), |
| isl_dim_from_range(ran_dom)); |
| ran = isl_dim_join(isl_dim_from_domain(dom_ran), |
| isl_dim_from_range(ran_ran)); |
| return isl_dim_join(isl_dim_from_domain(isl_dim_wrap(dom)), |
| isl_dim_from_range(isl_dim_wrap(ran))); |
| error: |
| isl_dim_free(dim); |
| return NULL; |
| } |
| |
| int isl_dim_has_named_params(__isl_keep isl_dim *dim) |
| { |
| int i; |
| unsigned off; |
| |
| if (!dim) |
| return -1; |
| if (dim->nparam == 0) |
| return 1; |
| off = isl_dim_offset(dim, isl_dim_param); |
| if (off + dim->nparam > dim->n_name) |
| return 0; |
| for (i = 0; i < dim->nparam; ++i) |
| if (!dim->names[off + i]) |
| return 0; |
| return 1; |
| } |
| |
| /* Align the initial parameters of dim1 to match the order in dim2. |
| */ |
| __isl_give isl_dim *isl_dim_align_params(__isl_take isl_dim *dim1, |
| __isl_take isl_dim *dim2) |
| { |
| isl_reordering *exp; |
| |
| if (!isl_dim_has_named_params(dim1) || !isl_dim_has_named_params(dim2)) |
| isl_die(isl_dim_get_ctx(dim1), isl_error_invalid, |
| "parameter alignment requires named parameters", |
| goto error); |
| |
| exp = isl_parameter_alignment_reordering(dim1, dim2); |
| isl_dim_free(dim1); |
| isl_dim_free(dim2); |
| if (!exp) |
| return NULL; |
| dim1 = isl_dim_copy(exp->dim); |
| isl_reordering_free(exp); |
| return dim1; |
| error: |
| isl_dim_free(dim1); |
| isl_dim_free(dim2); |
| return NULL; |
| } |