isl_aff_lex_templ.c

   1 /*
   2  * Copyright 2014      INRIA Rocquencourt
   3  *
   4  * Use of this software is governed by the MIT license
   5  *
   6  * Written by Sven Verdoolaege,
   7  * Inria Paris - Rocquencourt, Domaine de Voluceau - Rocquencourt,
   8  * B.P. 105 - 78153 Le Chesnay, France
   9  */
  10
  11 #define xFN(TYPE,NAME) TYPE ## _ ## NAME
  12 #define FN(TYPE,NAME) xFN(TYPE,NAME)
  13
  14 /* Return a map containing pairs of elements in the domains of "mpa1" and "mpa2"
  15  * where the function value of "mpa1" lexicographically compares as "ORDER"
  16  * to that of "mpa2".  "space" is the space of the result.
  17  * The parameters of "mpa1" and "mpa2" are assumed to have been aligned.
  18  *
  19  * "mpa1" is in the given lexicographic order compared to "mpa2"
  20  * if, for some i, the i-th element of "mpa1" is in that order compared to
  21  * the i-th element of "mpa2" while all previous elements are
  22  * pairwise equal, where the order needs to be strict (not-equal)
  23  * if i corresponds to anything but the last element.
  24  * The strict version of "ORDER" is defined by "STRICT_ORDER",
  25  * which is the same if "ORDER" itself is strict.
  26  */
  27 static __isl_give isl_map *FN(FN(isl_multi_pw_aff_lex,ORDER),map_on_space)(
  28         __isl_keep isl_multi_pw_aff *mpa1, __isl_keep isl_multi_pw_aff *mpa2,
  29         __isl_take isl_space *space)
  30 {
  31         return isl_multi_pw_aff_lex_map_on_space(mpa1, mpa2,
  32                                         &FN(FN(isl_pw_aff,STRICT_ORDER),map),
  33                                         &FN(FN(isl_pw_aff,ORDER),map), space);
  34 }
  35
  36 /* Return a map containing pairs of elements in the domains of "mpa1" and "mpa2"
  37  * where the function value of "mpa1" lexicographically compares as "ORDER"
  38  * to that of "mpa2".
  39  */
  40 __isl_give isl_map *FN(FN(isl_multi_pw_aff_lex,ORDER),map)(
  41         __isl_take isl_multi_pw_aff *mpa1, __isl_take isl_multi_pw_aff *mpa2)
  42 {
  43         return isl_multi_pw_aff_order_map(mpa1, mpa2,
  44                         &FN(FN(isl_multi_pw_aff_lex,ORDER),map_on_space));
  45 }
  46
  47 /* Return the subset of "map" where the domain and the range
  48  * have "mpa" values that lexicographically compare as "ORDER".
  49  */
  50 __isl_give isl_map *FN(FN(isl_map_lex,ORDER),at_multi_pw_aff)(
  51         __isl_take isl_map *map, __isl_take isl_multi_pw_aff *mpa)
  52 {
  53         return isl_map_order_at_multi_pw_aff(map, mpa,
  54                                 &FN(FN(isl_multi_pw_aff_lex,ORDER),map));
  55 }