| 1 | #include <isl_pw_macro.h> |
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| 2 | |
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| 3 | /* Fix the value of the given parameter or domain dimension of "pw" |
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| 4 | * to be equal to "value". |
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| 5 | */ |
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| 6 | __isl_give PW *FN(PW,fix_si)(__isl_take PW *pw, enum isl_dim_type type, |
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| 7 | unsigned pos, int value) |
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| 8 | { |
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| 9 | int i; |
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| 10 | isl_size n; |
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| 11 | |
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| 12 | n = FN(PW,n_piece)(pw); |
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| 13 | if (n < 0) |
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| 14 | return FN(PW,free)(pw); |
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| 15 | |
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| 16 | if (type == isl_dim_out) |
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| 17 | isl_die(FN(PW,get_ctx)(pw), isl_error_invalid, |
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| 18 | "cannot fix output dimension" , return FN(PW,free)(pw)); |
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| 19 | |
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| 20 | if (type == isl_dim_in) |
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| 21 | type = isl_dim_set; |
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| 22 | |
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| 23 | for (i = n - 1; i >= 0; --i) { |
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| 24 | isl_set *domain; |
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| 25 | |
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| 26 | domain = FN(PW,take_domain_at)(pw, pos: i); |
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| 27 | domain = isl_set_fix_si(set: domain, type, pos, value); |
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| 28 | pw = FN(PW,restore_domain_at)(pw, pos: i, domain); |
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| 29 | pw = FN(PW,exploit_equalities_and_remove_if_empty)(pw, i); |
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| 30 | } |
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| 31 | |
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| 32 | return pw; |
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| 33 | } |
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| 34 | |
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| 35 | /* Fix the value of the variable at position "pos" of type "type" of "pw" |
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| 36 | * to be equal to "v". |
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| 37 | */ |
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| 38 | __isl_give PW *FN(PW,fix_val)(__isl_take PW *pw, |
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| 39 | enum isl_dim_type type, unsigned pos, __isl_take isl_val *v) |
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| 40 | { |
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| 41 | int i; |
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| 42 | isl_size n; |
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| 43 | |
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| 44 | if (!v) |
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| 45 | return FN(PW,free)(pw); |
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| 46 | if (!isl_val_is_int(v)) |
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| 47 | isl_die(FN(PW,get_ctx)(pw), isl_error_invalid, |
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| 48 | "expecting integer value" , goto error); |
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| 49 | |
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| 50 | n = FN(PW,n_piece)(pw); |
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| 51 | if (n < 0) |
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| 52 | goto error; |
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| 53 | |
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| 54 | if (type == isl_dim_in) |
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| 55 | type = isl_dim_set; |
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| 56 | |
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| 57 | for (i = 0; i < n; ++i) { |
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| 58 | isl_set *domain; |
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| 59 | |
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| 60 | domain = FN(PW,take_domain_at)(pw, pos: i); |
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| 61 | domain = isl_set_fix(set: domain, type, pos, value: v->n); |
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| 62 | pw = FN(PW,restore_domain_at)(pw, pos: i, domain); |
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| 63 | pw = FN(PW,exploit_equalities_and_remove_if_empty)(pw, i); |
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| 64 | } |
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| 65 | |
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| 66 | isl_val_free(v); |
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| 67 | return pw; |
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| 68 | error: |
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| 69 | isl_val_free(v); |
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| 70 | return FN(PW,free)(pw); |
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| 71 | } |
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| 72 | |
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