barvinok_summate.c

   1 #include <assert.h>
   2 #include <isl/ctx.h>
   3 #include <isl/val.h>
   4 #include <isl/space.h>
   5 #include <isl/point.h>
   6 #include <isl/set.h>
   7 #include <isl/polynomial.h>
   8 #include <isl/stream.h>
   9 #include <isl/printer.h>
  10 #include <barvinok/isl.h>
  11 #include <barvinok/options.h>
  12 #include <barvinok/util.h>
  13 #include "verify.h"
  14
  15 struct options {
  16         struct verify_options    *verify;
  17 };
  18
  19 ISL_ARGS_START(struct options, options_args)
  20 ISL_ARG_CHILD(struct options, verify, NULL,
  21         &verify_options_args, "verification")
  22 ISL_ARGS_END
  23
  24 ISL_ARG_DEF(options, struct options, options_args)
  25
  26 struct verify_point_sum {
  27         struct verify_point_data vpd;
  28         isl_pw_qpolynomial *pwqp;
  29         isl_pw_qpolynomial *sum;
  30
  31         isl_pw_qpolynomial *fixed;
  32         isl_val *manual;
  33 };
  34
  35 static isl_stat manual_sum(__isl_take isl_point *pnt, void *user)
  36 {
  37         struct verify_point_sum *vps = (struct verify_point_sum *) user;
  38         isl_val *v;
  39
  40         v = isl_pw_qpolynomial_eval(isl_pw_qpolynomial_copy(vps->fixed), pnt);
  41         vps->manual = isl_val_add(vps->manual, v);
  42
  43         return isl_stat_ok;
  44 }
  45
  46 static isl_stat verify_point(__isl_take isl_point *pnt, void *user)
  47 {
  48         struct verify_point_sum *vps = (struct verify_point_sum *) user;
  49         int i;
  50         int ok;
  51         unsigned nvar;
  52         unsigned nparam;
  53         isl_val *v;
  54         isl_set *dom;
  55         isl_val *eval;
  56         int r;
  57         FILE *out = vps->vpd.options->print_all ? stdout : stderr;
  58
  59         vps->vpd.n--;
  60
  61         vps->fixed = isl_pw_qpolynomial_copy(vps->pwqp);
  62         nparam = isl_pw_qpolynomial_dim(vps->sum, isl_dim_param);
  63         for (i = 0; i < nparam; ++i) {
  64                 v = isl_point_get_coordinate_val(pnt, isl_dim_param, i);
  65                 vps->fixed = isl_pw_qpolynomial_fix_val(vps->fixed,
  66                                                         isl_dim_param, i, v);
  67         }
  68
  69         eval = isl_pw_qpolynomial_eval(isl_pw_qpolynomial_copy(vps->sum),
  70                                         isl_point_copy(pnt));
  71
  72         vps->manual = isl_val_zero(isl_point_get_ctx(pnt));
  73         dom = isl_pw_qpolynomial_domain(isl_pw_qpolynomial_copy(vps->fixed));
  74         r = isl_set_foreach_point(dom, &manual_sum, user);
  75         isl_set_free(dom);
  76         if (r < 0)
  77                 goto error;
  78
  79         nvar = isl_set_dim(dom, isl_dim_set);
  80
  81         ok = isl_val_eq(eval, vps->manual);
  82
  83         if (vps->vpd.options->print_all || !ok) {
  84                 isl_ctx *ctx = isl_pw_qpolynomial_get_ctx(vps->pwqp);
  85                 isl_printer *p = isl_printer_to_file(ctx, out);
  86                 fprintf(out, "sum(");
  87                 for (i = 0; i < nparam; ++i) {
  88                         if (i)
  89                                 fprintf(out, ", ");
  90                         v = isl_point_get_coordinate_val(pnt, isl_dim_param, i);
  91                         p = isl_printer_print_val(p, v);
  92                         isl_val_free(v);
  93                 }
  94                 fprintf(out, ") = ");
  95                 p = isl_printer_print_val(p, eval);
  96                 fprintf(out, ", sum(EP) = ");
  97                 p = isl_printer_print_val(p, vps->manual);
  98                 if (ok)
  99                         fprintf(out, ". OK\n");
 100                 else
 101                         fprintf(out, ". NOT OK\n");
 102                 isl_printer_free(p);
 103         } else if ((vps->vpd.n % vps->vpd.s) == 0) {
 104                 printf("o");
 105                 fflush(stdout);
 106         }
 107
 108         if (0) {
 109 error:
 110                 ok = 0;
 111         }
 112         isl_val_free(vps->manual);
 113         isl_pw_qpolynomial_free(vps->fixed);
 114         isl_val_free(eval);
 115         isl_point_free(pnt);
 116
 117         if (!ok)
 118                 vps->vpd.error = 1;
 119
 120         if (vps->vpd.options->continue_on_error)
 121                 ok = 1;
 122
 123         return (vps->vpd.n >= 1 && ok) ? isl_stat_ok : isl_stat_error;
 124 }
 125
 126 static int verify(__isl_keep isl_pw_qpolynomial *pwqp,
 127         __isl_take isl_pw_qpolynomial *sum, struct verify_options *options)
 128 {
 129         struct verify_point_sum vps = { { options } };
 130         isl_set *context;
 131         int r;
 132
 133         vps.pwqp = pwqp;
 134         vps.sum = sum;
 135
 136         context = isl_pw_qpolynomial_domain(isl_pw_qpolynomial_copy(sum));
 137         context = verify_context_set_bounds(context, options);
 138
 139         r = verify_point_data_init(&vps.vpd, context);
 140
 141         if (r == 0)
 142                 isl_set_foreach_point(context, verify_point, &vps);
 143         if (vps.vpd.error)
 144                 r = -1;
 145
 146         isl_set_free(context);
 147
 148         verify_point_data_fini(&vps.vpd);
 149
 150         return r;
 151 }
 152
 153 int main(int argc, char **argv)
 154 {
 155     int result = 0;
 156     isl_ctx *ctx;
 157     isl_pw_qpolynomial *pwqp;
 158     isl_pw_qpolynomial *sum;
 159     struct isl_stream *s;
 160     struct options *options = options_new_with_defaults();
 161
 162     argc = options_parse(options, argc, argv, ISL_ARG_ALL);
 163     ctx = isl_ctx_alloc_with_options(&options_args, options);
 164
 165     s = isl_stream_new_file(ctx, stdin);
 166     pwqp = isl_stream_read_pw_qpolynomial(s);
 167
 168     if (options->verify->verify) {
 169         isl_space *dim = isl_pw_qpolynomial_get_space(pwqp);
 170         unsigned total = isl_space_dim(dim, isl_dim_all);
 171         isl_space_free(dim);
 172         verify_options_set_range(options->verify, total);
 173     }
 174
 175     sum = isl_pw_qpolynomial_sum(isl_pw_qpolynomial_copy(pwqp));
 176     if (options->verify->verify)
 177         result = verify(pwqp, sum, options->verify);
 178     else {
 179         isl_printer *p = isl_printer_to_file(ctx, stdout);
 180         p = isl_printer_print_pw_qpolynomial(p, sum);
 181         p = isl_printer_end_line(p);
 182         isl_printer_free(p);
 183     }
 184     isl_pw_qpolynomial_free(sum);
 185     isl_pw_qpolynomial_free(pwqp);
 186
 187     isl_stream_free(s);
 188     isl_ctx_free(ctx);
 189     return result;
 190 }