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48 lines
899 B
C
48 lines
899 B
C
/*
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* Copyright 2019 Cerebras Systems
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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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* Cerebras Systems, 175 S San Antonio Rd, Los Altos, CA, USA
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*/
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#include <isl_pw_macro.h>
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#undef VAL
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#define VAL CAT(isl_,VAL_BASE)
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/* Add "v" to the constant term of "pw" over its entire definition domain.
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*/
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__isl_give PW *FN(FN(PW,add_constant),VAL_BASE)(__isl_take PW *pw,
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__isl_take VAL *v)
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{
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isl_bool zero;
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isl_size n;
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int i;
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zero = FN(VAL,is_zero)(v);
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n = FN(PW,n_piece)(pw);
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if (zero < 0 || n < 0)
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goto error;
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if (zero || n == 0) {
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FN(VAL,free)(v);
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return pw;
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}
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for (i = 0; i < n; ++i) {
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EL *el;
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el = FN(PW,take_base_at)(pw, i);
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el = FN(FN(EL,add_constant),VAL_BASE)(el, FN(VAL,copy)(v));
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pw = FN(PW,restore_base_at)(pw, i, el);
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}
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FN(VAL,free)(v);
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return pw;
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error:
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FN(PW,free)(pw);
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FN(VAL,free)(v);
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return NULL;
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}
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