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optimize has_sign_bit and mod2k to not compute powers of two

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this is very useful for bitvectors of large bitwidths
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Nuno Lopes 2026-01-31 10:36:43 +00:00 • committed by Nikolaj Bjorner
parent 9771839005
commit 6c3f9a3540
6 changed files with 97 additions and 34 deletions
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src/ast/bv_decl_plugin.h
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@ -461,8 +461,7 @@ public:
MATCH_UNARY(is_int2bv);
bool is_bit2bool(expr* e, expr*& bv, unsigned& idx) const;
rational norm(rational const & val, unsigned bv_size, bool is_signed) const ;
rational norm(rational const & val, unsigned bv_size) const { return norm(val, bv_size, false); }
rational norm(rational const & val, unsigned bv_size, bool is_signed = false) const ;
bool has_sign_bit(rational const & n, unsigned bv_size) const;
};