Viewing file:  isl_vec.c (13.38 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
* Copyright 2008-2009 Katholieke Universiteit Leuven
* Copyright 2013 Ecole Normale Superieure
*
* Use of this software is governed by the MIT license
*
* Written by Sven Verdoolaege, K.U.Leuven, Departement
* Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
* and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
*/
#include <isl_ctx_private.h>
#include <isl_seq.h>
#include <isl_val_private.h>
#include <isl_vec_private.h>
isl_ctx *isl_vec_get_ctx(__isl_keep isl_vec *vec)
{
return vec ? vec->ctx : NULL;
}
/* Return a hash value that digests "vec".
*/
uint32_t isl_vec_get_hash(__isl_keep isl_vec *vec)
{
if (!vec)
return 0;
return isl_seq_get_hash(vec->el, vec->size);
}
__isl_give isl_vec *isl_vec_alloc(struct isl_ctx *ctx, unsigned size)
{
struct isl_vec *vec;
vec = isl_alloc_type(ctx, struct isl_vec);
if (!vec)
return NULL;
vec->block = isl_blk_alloc(ctx, size);
if (isl_blk_is_error(vec->block))
goto error;
vec->ctx = ctx;
isl_ctx_ref(ctx);
vec->ref = 1;
vec->size = size;
vec->el = vec->block.data;
return vec;
error:
isl_blk_free(ctx, vec->block);
free(vec);
return NULL;
}
__isl_give isl_vec *isl_vec_extend(__isl_take isl_vec *vec, unsigned size)
{
if (!vec)
return NULL;
if (size <= vec->size)
return vec;
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
vec->block = isl_blk_extend(vec->ctx, vec->block, size);
if (!vec->block.data)
goto error;
vec->size = size;
vec->el = vec->block.data;
return vec;
error:
isl_vec_free(vec);
return NULL;
}
/* Apply the expansion specified by "exp" to the "n" elements starting at "pos".
* "expanded" it the number of elements that need to replace those "n"
* elements. The entries in "exp" have increasing values between
* 0 and "expanded".
*/
__isl_give isl_vec *isl_vec_expand(__isl_take isl_vec *vec, int pos, int n,
int *exp, int expanded)
{
int i, j;
int old_size, extra;
if (!vec)
return NULL;
if (expanded < n)
isl_die(isl_vec_get_ctx(vec), isl_error_invalid,
"not an expansion", return isl_vec_free(vec));
if (expanded == n)
return vec;
if (pos < 0 || n < 0 || pos + n > vec->size)
isl_die(isl_vec_get_ctx(vec), isl_error_invalid,
"position out of bounds", return isl_vec_free(vec));
old_size = vec->size;
extra = expanded - n;
vec = isl_vec_extend(vec, old_size + extra);
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
for (i = old_size - 1; i >= pos + n; --i)
isl_int_set(vec->el[i + extra], vec->el[i]);
j = n - 1;
for (i = expanded - 1; i >= 0; --i) {
if (j >= 0 && exp[j] == i) {
if (i != j)
isl_int_swap(vec->el[pos + i],
vec->el[pos + j]);
j--;
} else {
isl_int_set_si(vec->el[pos + i], 0);
}
}
return vec;
}
/* Create a vector of size "size" with zero-valued elements.
*/
__isl_give isl_vec *isl_vec_zero(isl_ctx *ctx, unsigned size)
{
isl_vec *vec;
vec = isl_vec_alloc(ctx, size);
if (!vec)
return NULL;
isl_seq_clr(vec->el, size);
return vec;
}
__isl_give isl_vec *isl_vec_zero_extend(__isl_take isl_vec *vec, unsigned size)
{
int extra;
if (!vec)
return NULL;
if (size <= vec->size)
return vec;
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
extra = size - vec->size;
vec = isl_vec_extend(vec, size);
if (!vec)
return NULL;
isl_seq_clr(vec->el + size - extra, extra);
return vec;
}
/* Return a vector containing the elements of "vec1" followed by
* those of "vec2".
*/
__isl_give isl_vec *isl_vec_concat(__isl_take isl_vec *vec1,
__isl_take isl_vec *vec2)
{
if (!vec1 || !vec2)
goto error;
if (vec2->size == 0) {
isl_vec_free(vec2);
return vec1;
}
if (vec1->size == 0) {
isl_vec_free(vec1);
return vec2;
}
vec1 = isl_vec_extend(vec1, vec1->size + vec2->size);
if (!vec1)
goto error;
isl_seq_cpy(vec1->el + vec1->size - vec2->size, vec2->el, vec2->size);
isl_vec_free(vec2);
return vec1;
error:
isl_vec_free(vec1);
isl_vec_free(vec2);
return NULL;
}
__isl_give isl_vec *isl_vec_copy(__isl_keep isl_vec *vec)
{
if (!vec)
return NULL;
vec->ref++;
return vec;
}
__isl_give isl_vec *isl_vec_dup(__isl_keep isl_vec *vec)
{
struct isl_vec *vec2;
if (!vec)
return NULL;
vec2 = isl_vec_alloc(vec->ctx, vec->size);
if (!vec2)
return NULL;
isl_seq_cpy(vec2->el, vec->el, vec->size);
return vec2;
}
__isl_give isl_vec *isl_vec_cow(__isl_take isl_vec *vec)
{
struct isl_vec *vec2;
if (!vec)
return NULL;
if (vec->ref == 1)
return vec;
vec2 = isl_vec_dup(vec);
isl_vec_free(vec);
return vec2;
}
__isl_null isl_vec *isl_vec_free(__isl_take isl_vec *vec)
{
if (!vec)
return NULL;
if (--vec->ref > 0)
return NULL;
isl_ctx_deref(vec->ctx);
isl_blk_free(vec->ctx, vec->block);
free(vec);
return NULL;
}
isl_size isl_vec_size(__isl_keep isl_vec *vec)
{
return vec ? vec->size : isl_size_error;
}
/* Extract the element at position "pos" of "vec".
*/
__isl_give isl_val *isl_vec_get_element_val(__isl_keep isl_vec *vec, int pos)
{
isl_ctx *ctx;
if (!vec)
return NULL;
ctx = isl_vec_get_ctx(vec);
if (pos < 0 || pos >= vec->size)
isl_die(ctx, isl_error_invalid, "position out of range",
return NULL);
return isl_val_int_from_isl_int(ctx, vec->el[pos]);
}
__isl_give isl_vec *isl_vec_set_element(__isl_take isl_vec *vec,
int pos, isl_int v)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
if (pos < 0 || pos >= vec->size)
isl_die(vec->ctx, isl_error_invalid, "position out of range",
goto error);
isl_int_set(vec->el[pos], v);
return vec;
error:
isl_vec_free(vec);
return NULL;
}
__isl_give isl_vec *isl_vec_set_element_si(__isl_take isl_vec *vec,
int pos, int v)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
if (pos < 0 || pos >= vec->size)
isl_die(vec->ctx, isl_error_invalid, "position out of range",
goto error);
isl_int_set_si(vec->el[pos], v);
return vec;
error:
isl_vec_free(vec);
return NULL;
}
/* Replace the element at position "pos" of "vec" by "v".
*/
__isl_give isl_vec *isl_vec_set_element_val(__isl_take isl_vec *vec,
int pos, __isl_take isl_val *v)
{
if (!v)
return isl_vec_free(vec);
if (!isl_val_is_int(v))
isl_die(isl_val_get_ctx(v), isl_error_invalid,
"expecting integer value", goto error);
vec = isl_vec_set_element(vec, pos, v->n);
isl_val_free(v);
return vec;
error:
isl_val_free(v);
return isl_vec_free(vec);
}
/* Compare the elements of "vec1" and "vec2" at position "pos".
*/
int isl_vec_cmp_element(__isl_keep isl_vec *vec1, __isl_keep isl_vec *vec2,
int pos)
{
if (!vec1 || !vec2)
return 0;
if (pos < 0 || pos >= vec1->size || pos >= vec2->size)
isl_die(isl_vec_get_ctx(vec1), isl_error_invalid,
"position out of range", return 0);
return isl_int_cmp(vec1->el[pos], vec2->el[pos]);
}
/* Does "vec" contain only zero elements?
*/
isl_bool isl_vec_is_zero(__isl_keep isl_vec *vec)
{
if (!vec)
return isl_bool_error;
return isl_bool_ok(isl_seq_first_non_zero(vec->el, vec->size) < 0);
}
isl_bool isl_vec_is_equal(__isl_keep isl_vec *vec1, __isl_keep isl_vec *vec2)
{
if (!vec1 || !vec2)
return isl_bool_error;
if (vec1->size != vec2->size)
return isl_bool_false;
return isl_bool_ok(isl_seq_eq(vec1->el, vec2->el, vec1->size));
}
__isl_give isl_printer *isl_printer_print_vec(__isl_take isl_printer *printer,
__isl_keep isl_vec *vec)
{
int i;
if (!printer || !vec)
goto error;
printer = isl_printer_print_str(printer, "[");
for (i = 0; i < vec->size; ++i) {
if (i)
printer = isl_printer_print_str(printer, ",");
printer = isl_printer_print_isl_int(printer, vec->el[i]);
}
printer = isl_printer_print_str(printer, "]");
return printer;
error:
isl_printer_free(printer);
return NULL;
}
void isl_vec_dump(__isl_keep isl_vec *vec)
{
isl_printer *printer;
if (!vec)
return;
printer = isl_printer_to_file(vec->ctx, stderr);
printer = isl_printer_print_vec(printer, vec);
printer = isl_printer_end_line(printer);
isl_printer_free(printer);
}
__isl_give isl_vec *isl_vec_set(__isl_take isl_vec *vec, isl_int v)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
isl_seq_set(vec->el, v, vec->size);
return vec;
}
__isl_give isl_vec *isl_vec_set_si(__isl_take isl_vec *vec, int v)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
isl_seq_set_si(vec->el, v, vec->size);
return vec;
}
/* Replace all elements of "vec" by "v".
*/
__isl_give isl_vec *isl_vec_set_val(__isl_take isl_vec *vec,
__isl_take isl_val *v)
{
vec = isl_vec_cow(vec);
if (!vec || !v)
goto error;
if (!isl_val_is_int(v))
isl_die(isl_val_get_ctx(v), isl_error_invalid,
"expecting integer value", goto error);
isl_seq_set(vec->el, v->n, vec->size);
isl_val_free(v);
return vec;
error:
isl_vec_free(vec);
isl_val_free(v);
return NULL;
}
__isl_give isl_vec *isl_vec_clr(__isl_take isl_vec *vec)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
isl_seq_clr(vec->el, vec->size);
return vec;
}
void isl_vec_lcm(__isl_keep isl_vec *vec, isl_int *lcm)
{
isl_seq_lcm(vec->block.data, vec->size, lcm);
}
/* Given a rational vector, with the denominator in the first element
* of the vector, round up all coordinates.
*/
__isl_give isl_vec *isl_vec_ceil(__isl_take isl_vec *vec)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
isl_seq_cdiv_q(vec->el + 1, vec->el + 1, vec->el[0], vec->size - 1);
isl_int_set_si(vec->el[0], 1);
return vec;
}
__isl_give isl_vec *isl_vec_normalize(__isl_take isl_vec *vec)
{
if (!vec)
return NULL;
isl_seq_normalize(vec->ctx, vec->el, vec->size);
return vec;
}
__isl_give isl_vec *isl_vec_neg(__isl_take isl_vec *vec)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
isl_seq_neg(vec->el, vec->el, vec->size);
return vec;
}
__isl_give isl_vec *isl_vec_scale(__isl_take isl_vec *vec, isl_int m)
{
if (isl_int_is_one(m))
return vec;
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
isl_seq_scale(vec->el, vec->el, m, vec->size);
return vec;
}
/* Reduce the elements of "vec" modulo "m".
*/
__isl_give isl_vec *isl_vec_fdiv_r(__isl_take isl_vec *vec, isl_int m)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
isl_seq_fdiv_r(vec->el, vec->el, m, vec->size);
return vec;
}
__isl_give isl_vec *isl_vec_add(__isl_take isl_vec *vec1,
__isl_take isl_vec *vec2)
{
vec1 = isl_vec_cow(vec1);
if (!vec1 || !vec2)
goto error;
isl_assert(vec1->ctx, vec1->size == vec2->size, goto error);
isl_seq_combine(vec1->el, vec1->ctx->one, vec1->el,
vec1->ctx->one, vec2->el, vec1->size);
isl_vec_free(vec2);
return vec1;
error:
isl_vec_free(vec1);
isl_vec_free(vec2);
return NULL;
}
static int qsort_int_cmp(const void *p1, const void *p2)
{
const isl_int *i1 = (const isl_int *) p1;
const isl_int *i2 = (const isl_int *) p2;
return isl_int_cmp(*i1, *i2);
}
__isl_give isl_vec *isl_vec_sort(__isl_take isl_vec *vec)
{
if (!vec)
return NULL;
qsort(vec->el, vec->size, sizeof(*vec->el), &qsort_int_cmp);
return vec;
}
__isl_give isl_vec *isl_vec_drop_els(__isl_take isl_vec *vec,
unsigned pos, unsigned n)
{
if (n == 0)
return vec;
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
if (pos + n > vec->size)
isl_die(vec->ctx, isl_error_invalid,
"range out of bounds", goto error);
if (pos + n != vec->size)
isl_seq_cpy(vec->el + pos, vec->el + pos + n,
vec->size - pos - n);
vec->size -= n;
return vec;
error:
isl_vec_free(vec);
return NULL;
}
__isl_give isl_vec *isl_vec_insert_els(__isl_take isl_vec *vec,
unsigned pos, unsigned n)
{
isl_vec *ext = NULL;
if (n == 0)
return vec;
if (!vec)
return NULL;
if (pos > vec->size)
isl_die(vec->ctx, isl_error_invalid,
"position out of bounds", goto error);
ext = isl_vec_alloc(vec->ctx, vec->size + n);
if (!ext)
goto error;
isl_seq_cpy(ext->el, vec->el, pos);
isl_seq_cpy(ext->el + pos + n, vec->el + pos, vec->size - pos);
isl_vec_free(vec);
return ext;
error:
isl_vec_free(vec);
isl_vec_free(ext);
return NULL;
}
/* Add "n" elements at the end of "vec".
*/
__isl_give isl_vec *isl_vec_add_els(__isl_take isl_vec *vec, unsigned n)
{
if (!vec)
return NULL;
return isl_vec_insert_els(vec, vec->size, n);
}
__isl_give isl_vec *isl_vec_insert_zero_els(__isl_take isl_vec *vec,
unsigned pos, unsigned n)
{
vec = isl_vec_insert_els(vec, pos, n);
if (!vec)
return NULL;
isl_seq_clr(vec->el + pos, n);
return vec;
}
/* Move the "n" elements starting as "src_pos" of "vec"
* to "dst_pos". The elements originally at "dst_pos" are moved
* up or down depending on whether "dst_pos" is smaller or greater
* than "src_pos".
*/
__isl_give isl_vec *isl_vec_move_els(__isl_take isl_vec *vec,
unsigned dst_pos, unsigned src_pos, unsigned n)
{
isl_vec *res;
if (!vec)
return NULL;
if (src_pos + n > vec->size)
isl_die(vec->ctx, isl_error_invalid,
"source range out of bounds", return isl_vec_free(vec));
if (dst_pos + n > vec->size)
isl_die(vec->ctx, isl_error_invalid,
"destination range out of bounds",
return isl_vec_free(vec));
if (n == 0 || dst_pos == src_pos)
return vec;
res = isl_vec_alloc(vec->ctx, vec->size);
if (!res)
return isl_vec_free(vec);
if (dst_pos < src_pos) {
isl_seq_cpy(res->el, vec->el, dst_pos);
isl_seq_cpy(res->el + dst_pos, vec->el + src_pos, n);
isl_seq_cpy(res->el + dst_pos + n,
vec->el + dst_pos, src_pos - dst_pos);
isl_seq_cpy(res->el + src_pos + n,
vec->el + src_pos + n, res->size - src_pos - n);
} else {
isl_seq_cpy(res->el, vec->el, src_pos);
isl_seq_cpy(res->el + src_pos,
vec->el + src_pos + n, dst_pos - src_pos);
isl_seq_cpy(res->el + dst_pos, vec->el + src_pos, n);
isl_seq_cpy(res->el + dst_pos + n,
vec->el + dst_pos + n, res->size - dst_pos - n);
}
isl_vec_free(vec);
return res;
}
|
