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_val *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_val *v;
  32
  33         v = isl_pw_qpolynomial_eval(isl_pw_qpolynomial_copy(vps->fixed), pnt);
  34         vps->manual = isl_val_add(vps->manual, v);
  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_val *v;
  47         isl_space *space;
  48         isl_set *dom;
  49         isl_val *eval;
  50         int r;
  51         FILE *out = vps->vpd.options->print_all ? stdout : stderr;
  52
  53         vps->vpd.n--;
  54
  55         vps->fixed = isl_pw_qpolynomial_copy(vps->pwqp);
  56         nparam = isl_pw_qpolynomial_dim(vps->sum, isl_dim_param);
  57         for (i = 0; i < nparam; ++i) {
  58                 v = isl_point_get_coordinate_val(pnt, isl_dim_param, i);
  59                 vps->fixed = isl_pw_qpolynomial_fix_val(vps->fixed,
  60                                                         isl_dim_param, i, v);
  61         }
  62
  63         eval = isl_pw_qpolynomial_eval(isl_pw_qpolynomial_copy(vps->sum),
  64                                         isl_point_copy(pnt));
  65
  66         vps->manual = isl_val_zero(isl_point_get_ctx(pnt));
  67         dom = isl_pw_qpolynomial_domain(isl_pw_qpolynomial_copy(vps->fixed));
  68         r = isl_set_foreach_point(dom, &manual_sum, user);
  69         isl_set_free(dom);
  70         if (r < 0)
  71                 goto error;
  72
  73         nvar = isl_set_dim(dom, isl_dim_set);
  74
  75         ok = isl_val_eq(eval, vps->manual);
  76
  77         if (vps->vpd.options->print_all || !ok) {
  78                 isl_ctx *ctx = isl_pw_qpolynomial_get_ctx(vps->pwqp);
  79                 isl_printer *p = isl_printer_to_file(ctx, out);
  80                 fprintf(out, "sum(");
  81                 for (i = 0; i < nparam; ++i) {
  82                         if (i)
  83                                 fprintf(out, ", ");
  84                         v = isl_point_get_coordinate_val(pnt, isl_dim_param, i);
  85                         p = isl_printer_print_val(p, v);
  86                         isl_val_free(v);
  87                 }
  88                 fprintf(out, ") = ");
  89                 p = isl_printer_print_val(p, eval);
  90                 fprintf(out, ", sum(EP) = ");
  91                 p = isl_printer_print_val(p, vps->manual);
  92                 if (ok)
  93                         fprintf(out, ". OK\n");
  94                 else
  95                         fprintf(out, ". NOT OK\n");
  96                 isl_printer_free(p);
  97         } else if ((vps->vpd.n % vps->vpd.s) == 0) {
  98                 printf("o");
  99                 fflush(stdout);
 100         }
 101
 102         if (0) {
 103 error:
 104                 ok = 0;
 105         }
 106         isl_val_free(vps->manual);
 107         isl_pw_qpolynomial_free(vps->fixed);
 108         isl_val_free(eval);
 109         isl_point_free(pnt);
 110
 111         if (!ok)
 112                 vps->vpd.error = 1;
 113
 114         if (vps->vpd.options->continue_on_error)
 115                 ok = 1;
 116
 117         return (vps->vpd.n >= 1 && ok) ? 0 : -1;
 118 }
 119
 120 static int verify(__isl_keep isl_pw_qpolynomial *pwqp,
 121         __isl_take isl_pw_qpolynomial *sum, struct verify_options *options)
 122 {
 123         struct verify_point_sum vps = { { options } };
 124         isl_set *context;
 125         int r;
 126
 127         vps.pwqp = pwqp;
 128         vps.sum = sum;
 129
 130         context = isl_pw_qpolynomial_domain(isl_pw_qpolynomial_copy(sum));
 131         context = verify_context_set_bounds(context, options);
 132
 133         r = verify_point_data_init(&vps.vpd, context);
 134
 135         if (r == 0)
 136                 isl_set_foreach_point(context, verify_point, &vps);
 137         if (vps.vpd.error)
 138                 r = -1;
 139
 140         isl_set_free(context);
 141
 142         verify_point_data_fini(&vps.vpd);
 143
 144         return r;
 145 }
 146
 147 int main(int argc, char **argv)
 148 {
 149     int i;
 150     int result = 0;
 151     isl_ctx *ctx;
 152     isl_space *dim;
 153     isl_pw_qpolynomial *pwqp;
 154     isl_pw_qpolynomial *sum;
 155     struct isl_stream *s;
 156     struct options *options = options_new_with_defaults();
 157
 158     argc = options_parse(options, argc, argv, ISL_ARG_ALL);
 159     ctx = isl_ctx_alloc_with_options(&options_args, options);
 160
 161     s = isl_stream_new_file(ctx, stdin);
 162     pwqp = isl_stream_read_pw_qpolynomial(s);
 163
 164     if (options->verify->verify) {
 165         isl_space *dim = isl_pw_qpolynomial_get_space(pwqp);
 166         unsigned total = isl_space_dim(dim, isl_dim_all);
 167         isl_space_free(dim);
 168         verify_options_set_range(options->verify, total);
 169     }
 170
 171     sum = isl_pw_qpolynomial_sum(isl_pw_qpolynomial_copy(pwqp));
 172     if (options->verify->verify)
 173         result = verify(pwqp, sum, options->verify);
 174     else {
 175         isl_printer *p = isl_printer_to_file(ctx, stdout);
 176         p = isl_printer_print_pw_qpolynomial(p, sum);
 177         p = isl_printer_end_line(p);
 178         isl_printer_free(p);
 179     }
 180     isl_pw_qpolynomial_free(sum);
 181     isl_pw_qpolynomial_free(pwqp);
 182
 183     isl_stream_free(s);
 184     isl_ctx_free(ctx);
 185     return result;
 186 }