| 1 | /* |
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| 2 | * Copyright 2012,2014 Ecole Normale Superieure |
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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 | * Ecole Normale Superieure, 45 rue d'Ulm, 75230 Paris, France |
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| 8 | */ |
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| 9 | |
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| 10 | #include <isl/space.h> |
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| 11 | |
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| 12 | #include <isl_multi_macro.h> |
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| 13 | |
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| 14 | /* Create a multiple expression with a single output/set dimension |
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| 15 | * equal to "el". |
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| 16 | * For most multiple expression types, the base type has a single |
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| 17 | * output/set dimension and the space of the result is therefore |
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| 18 | * the same as the space of the input. |
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| 19 | * In the case of isl_multi_union_pw_aff, however, the base type |
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| 20 | * lives in a parameter space and we therefore need to add |
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| 21 | * a single set dimension. |
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| 22 | */ |
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| 23 | __isl_give MULTI(BASE) *FN(FN(MULTI(BASE),from),BASE)(__isl_take EL *el) |
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| 24 | { |
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| 25 | isl_space *space; |
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| 26 | MULTI(BASE) *multi; |
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| 27 | |
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| 28 | space = FN(EL,get_space(el)); |
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| 29 | if (isl_space_is_params(space)) { |
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| 30 | space = isl_space_set_from_params(space); |
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| 31 | space = isl_space_add_dims(space, type: isl_dim_set, n: 1); |
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| 32 | } |
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| 33 | multi = FN(MULTI(BASE),alloc)(space); |
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| 34 | multi = FN(FN(MULTI(BASE),set),BASE)(multi, pos: 0, el); |
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| 35 | |
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| 36 | return multi; |
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| 37 | } |
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| 38 | |
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