| 1 | /* |
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| 2 | * Copyright 2020 Cerebras Systems |
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| 3 | * |
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| 4 | * Use of this software is governed by the MIT license |
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| 5 | * |
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| 6 | * Written by Sven Verdoolaege, |
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| 7 | * Cerebras Systems, 175 S San Antonio Rd, Los Altos, CA, USA |
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| 8 | */ |
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| 9 | |
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| 10 | #include <isl_pw_macro.h> |
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| 11 | |
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| 12 | /* isl_pw_*_every_piece callback that checks whether "set" and "el" |
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| 13 | * are free of local variables. |
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| 14 | */ |
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| 15 | static isl_bool FN(PW,piece_no_local)(__isl_keep isl_set *set, |
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| 16 | __isl_keep EL *el, void *user) |
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| 17 | { |
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| 18 | isl_bool involves; |
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| 19 | |
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| 20 | involves = isl_set_involves_locals(set); |
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| 21 | if (involves >= 0 && !involves) |
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| 22 | involves = FN(EL,involves_locals)(multi: el); |
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| 23 | |
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| 24 | return isl_bool_not(b: involves); |
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| 25 | } |
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| 26 | |
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| 27 | /* Does "pw" involve any local variables, i.e., integer divisions? |
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| 28 | */ |
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| 29 | isl_bool FN(PW,involves_locals)(__isl_keep PW *pw) |
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| 30 | { |
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| 31 | isl_bool no_locals; |
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| 32 | |
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| 33 | no_locals = FN(PW,every_piece)(pw, test: &FN(PW,piece_no_local), NULL); |
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| 34 | return isl_bool_not(b: no_locals); |
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| 35 | } |
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| 36 | |
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