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use tuned gcd to compute mult inverse

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This commit is contained in:
Nikolaj Bjorner 2024-02-20 01:40:27 -08:00
parent 4391c90960
commit 7dc4ce8259
5 changed files with 125 additions and 11 deletions
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17
src/ast/sls/sls_valuation.h
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@ -131,9 +131,19 @@ namespace bv {
clear_overflow_bits(bits);
}
void set_zero() {
void set_zero(svector<digit_t>& out) const {
for (unsigned i = 0; i < nw; ++i)
bits[i] = 0;
out[i] = 0;
}
void set_one(svector<digit_t>& out) const {
for (unsigned i = 1; i < nw; ++i)
out[i] = 0;
out[0] = 1;
}
void set_zero() {
set_zero(bits);
}
void sub1(svector<digit_t>& out) const {
@ -149,7 +159,8 @@ namespace bv {
void set_sub(svector<digit_t>& out, svector<digit_t> const& a, svector<digit_t> const& b) const;
bool set_add(svector<digit_t>& out, svector<digit_t> const& a, svector<digit_t> const& b) const;
bool set_mul(svector<digit_t>& out, svector<digit_t> const& a, svector<digit_t> const& b) const;
bool set_mul(svector<digit_t>& out, svector<digit_t> const& a, svector<digit_t> const& b, bool check_overflow = true) const;
void shift_right(svector<digit_t>& out, unsigned shift) const;
void set_range(svector<digit_t>& dst, unsigned lo, unsigned hi, bool b) {
for (unsigned i = lo; i < hi; ++i)