barvinok_summate.c

   1 #include <assert.h>
   2 #include <isl/stream.h>
   3 #include <barvinok/barvinok.h>
   4 #include <barvinok/options.h>
   5 #include <barvinok/util.h>
   6 #include "verify.h"
   7
   8 struct options {
   9         struct verify_options    *verify;
  10 };
  11
  12 ISL_ARGS_START(struct options, options_args)
  13 ISL_ARG_CHILD(struct options, verify, NULL,
  14         &verify_options_args, "verification")
  15 ISL_ARGS_END
  16
  17 ISL_ARG_DEF(options, struct options, options_args)
  18
  19 struct verify_point_sum {
  20         struct verify_point_data vpd;
  21         isl_pw_qpolynomial *pwqp;
  22         isl_pw_qpolynomial *sum;
  23
  24         isl_pw_qpolynomial *fixed;
  25         isl_qpolynomial *manual;
  26 };
  27
  28 static int manual_sum(__isl_take isl_point *pnt, void *user)
  29 {
  30         struct verify_point_sum *vps = (struct verify_point_sum *) user;
  31         isl_qpolynomial *qp;
  32
  33         qp = isl_pw_qpolynomial_eval(isl_pw_qpolynomial_copy(vps->fixed), pnt);
  34         vps->manual = isl_qpolynomial_add(vps->manual, qp);
  35
  36         return 0;
  37 }
  38
  39 static int verify_point(__isl_take isl_point *pnt, void *user)
  40 {
  41         struct verify_point_sum *vps = (struct verify_point_sum *) user;
  42         int i;
  43         int ok;
  44         unsigned nvar;
  45         unsigned nparam;
  46         isl_int v;
  47         isl_space *space;
  48         isl_set *dom;
  49         isl_qpolynomial *eval;
  50         int r;
  51         FILE *out = vps->vpd.options->print_all ? stdout : stderr;
  52
  53         vps->vpd.n--;
  54
  55         isl_int_init(v);
  56         vps->fixed = isl_pw_qpolynomial_copy(vps->pwqp);
  57         nparam = isl_pw_qpolynomial_dim(vps->sum, isl_dim_param);
  58         for (i = 0; i < nparam; ++i) {
  59                 isl_point_get_coordinate(pnt, isl_dim_param, i, &v);
  60                 vps->fixed = isl_pw_qpolynomial_fix_dim(vps->fixed,
  61                                                         isl_dim_param, i, v);
  62         }
  63
  64         eval = isl_pw_qpolynomial_eval(isl_pw_qpolynomial_copy(vps->sum),
  65                                         isl_point_copy(pnt));
  66
  67         space = isl_pw_qpolynomial_get_domain_space(vps->pwqp);
  68         vps->manual = isl_qpolynomial_zero_on_domain(space);
  69         dom = isl_pw_qpolynomial_domain(isl_pw_qpolynomial_copy(vps->fixed));
  70         r = isl_set_foreach_point(dom, &manual_sum, user);
  71         isl_set_free(dom);
  72         if (r < 0)
  73                 goto error;
  74
  75         nvar = isl_set_dim(dom, isl_dim_set);
  76         vps->manual = isl_qpolynomial_project_domain_on_params(vps->manual);
  77
  78         ok = isl_qpolynomial_plain_is_equal(eval, vps->manual);
  79
  80         if (vps->vpd.options->print_all || !ok) {
  81                 isl_ctx *ctx = isl_pw_qpolynomial_get_ctx(vps->pwqp);
  82                 isl_printer *p = isl_printer_to_file(ctx, out);
  83                 fprintf(out, "sum(");
  84                 for (i = 0; i < nparam; ++i) {
  85                         if (i)
  86                                 fprintf(out, ", ");
  87                         isl_point_get_coordinate(pnt, isl_dim_param, i, &v);
  88                         isl_int_print(out, v, 0);
  89                 }
  90                 fprintf(out, ") = ");
  91                 p = isl_printer_print_qpolynomial(p, eval);
  92                 fprintf(out, ", sum(EP) = ");
  93                 p = isl_printer_print_qpolynomial(p, vps->manual);
  94                 if (ok)
  95                         fprintf(out, ". OK\n");
  96                 else
  97                         fprintf(out, ". NOT OK\n");
  98                 isl_printer_free(p);
  99         } else if ((vps->vpd.n % vps->vpd.s) == 0) {
 100                 printf("o");
 101                 fflush(stdout);
 102         }
 103
 104         if (0) {
 105 error:
 106                 ok = 0;
 107         }
 108         isl_qpolynomial_free(vps->manual);
 109         isl_pw_qpolynomial_free(vps->fixed);
 110         isl_qpolynomial_free(eval);
 111         isl_int_clear(v);
 112         isl_point_free(pnt);
 113
 114         if (!ok)
 115                 vps->vpd.error = 1;
 116
 117         if (vps->vpd.options->continue_on_error)
 118                 ok = 1;
 119
 120         return (vps->vpd.n >= 1 && ok) ? 0 : -1;
 121 }
 122
 123 static int verify(__isl_keep isl_pw_qpolynomial *pwqp,
 124         __isl_take isl_pw_qpolynomial *sum, struct verify_options *options)
 125 {
 126         struct verify_point_sum vps = { { options } };
 127         isl_set *context;
 128         int r;
 129
 130         vps.pwqp = pwqp;
 131         vps.sum = sum;
 132
 133         context = isl_pw_qpolynomial_domain(isl_pw_qpolynomial_copy(sum));
 134         context = verify_context_set_bounds(context, options);
 135
 136         r = verify_point_data_init(&vps.vpd, context);
 137
 138         if (r == 0)
 139                 isl_set_foreach_point(context, verify_point, &vps);
 140         if (vps.vpd.error)
 141                 r = -1;
 142
 143         isl_set_free(context);
 144
 145         verify_point_data_fini(&vps.vpd);
 146
 147         return r;
 148 }
 149
 150 int main(int argc, char **argv)
 151 {
 152     int i;
 153     int result = 0;
 154     isl_ctx *ctx;
 155     isl_space *dim;
 156     isl_pw_qpolynomial *pwqp;
 157     isl_pw_qpolynomial *sum;
 158     struct isl_stream *s;
 159     struct options *options = options_new_with_defaults();
 160
 161     argc = options_parse(options, argc, argv, ISL_ARG_ALL);
 162     ctx = isl_ctx_alloc_with_options(&options_args, options);
 163
 164     s = isl_stream_new_file(ctx, stdin);
 165     pwqp = isl_stream_read_pw_qpolynomial(s);
 166
 167     if (options->verify->verify) {
 168         isl_space *dim = isl_pw_qpolynomial_get_space(pwqp);
 169         unsigned total = isl_space_dim(dim, isl_dim_all);
 170         isl_space_free(dim);
 171         verify_options_set_range(options->verify, total);
 172     }
 173
 174     sum = isl_pw_qpolynomial_sum(isl_pw_qpolynomial_copy(pwqp));
 175     if (options->verify->verify)
 176         result = verify(pwqp, sum, options->verify);
 177     else {
 178         isl_printer *p = isl_printer_to_file(ctx, stdout);
 179         p = isl_printer_print_pw_qpolynomial(p, sum);
 180         p = isl_printer_end_line(p);
 181         isl_printer_free(p);
 182     }
 183     isl_pw_qpolynomial_free(sum);
 184     isl_pw_qpolynomial_free(pwqp);
 185
 186     isl_stream_free(s);
 187     isl_ctx_free(ctx);
 188     return result;
 189 }