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56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/*
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* Copyright 2014 INRIA Rocquencourt
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*
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* Use of this software is governed by the MIT license
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*
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* Written by Sven Verdoolaege,
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* Inria Paris - Rocquencourt, Domaine de Voluceau - Rocquencourt,
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* B.P. 105 - 78153 Le Chesnay, France
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*/
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#define xFN(TYPE,NAME) TYPE ## _ ## NAME
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#define FN(TYPE,NAME) xFN(TYPE,NAME)
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/* Return a map containing pairs of elements in the domains of "mpa1" and "mpa2"
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* where the function value of "mpa1" lexicographically compares as "ORDER"
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* to that of "mpa2". "space" is the space of the result.
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* The parameters of "mpa1" and "mpa2" are assumed to have been aligned.
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*
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* "mpa1" is in the given lexicographic order compared to "mpa2"
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* if, for some i, the i-th element of "mpa1" is in that order compared to
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* the i-th element of "mpa2" while all previous elements are
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* pairwise equal, where the order needs to be strict (not-equal)
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* if i corresponds to anything but the last element.
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* The strict version of "ORDER" is defined by "STRICT_ORDER",
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* which is the same if "ORDER" itself is strict.
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*/
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static __isl_give isl_map *FN(FN(isl_multi_pw_aff_lex,ORDER),map_on_space)(
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__isl_keep isl_multi_pw_aff *mpa1, __isl_keep isl_multi_pw_aff *mpa2,
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__isl_take isl_space *space)
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{
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return isl_multi_pw_aff_lex_map_on_space(mpa1, mpa2,
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&FN(FN(isl_pw_aff,STRICT_ORDER),map),
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&FN(FN(isl_pw_aff,ORDER),map), space);
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}
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/* Return a map containing pairs of elements in the domains of "mpa1" and "mpa2"
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* where the function value of "mpa1" lexicographically compares as "ORDER"
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* to that of "mpa2".
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*/
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__isl_give isl_map *FN(FN(isl_multi_pw_aff_lex,ORDER),map)(
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__isl_take isl_multi_pw_aff *mpa1, __isl_take isl_multi_pw_aff *mpa2)
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{
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return isl_multi_pw_aff_order_map(mpa1, mpa2,
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&FN(FN(isl_multi_pw_aff_lex,ORDER),map_on_space));
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}
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/* Return the subset of "map" where the domain and the range
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* have "mpa" values that lexicographically compare as "ORDER".
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*/
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__isl_give isl_map *FN(FN(isl_map_lex,ORDER),at_multi_pw_aff)(
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__isl_take isl_map *map, __isl_take isl_multi_pw_aff *mpa)
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{
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return isl_map_order_at_multi_pw_aff(map, mpa,
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&FN(FN(isl_multi_pw_aff_lex,ORDER),map));
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}
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