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