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Fix mk_slice, add mk_extract/mk_concat

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This commit is contained in:
Jakob Rath 2023-06-16 11:48:01 +02:00
parent 982170e6e0
commit 8a50467ba8
4 changed files with 134 additions and 126 deletions
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47
src/test/slicing.cpp
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@ -60,29 +60,45 @@ namespace polysat {
slicing& sl = s.sl();
pvar x = s.add_var(8);
pvar y = s.add_var(8);
pvar a = s.add_var(5);
pvar b = s.add_var(6);
slicing::slice_vector x_7_3;
sl.mk_slice(sl.var2slice(x), 7, 3, x_7_3);
slicing::slice_vector a_4_0;
sl.mk_slice(sl.var2slice(a), 4, 0, a_4_0);
sl.merge(x_7_3, a_4_0);
pvar a = sl.mk_extract_var(x, 7, 3);
std::cout << sl << "\n";
slicing::slice_vector x_base;
sl.find_base(sl.var2slice(x), x_base);
slicing::slice_vector y_base;
sl.find_base(sl.var2slice(y), y_base);
sl.merge(x_base, y_base);
sl.merge(sl.var2slice(x), sl.var2slice(y));
std::cout << sl << "\n";
slicing::slice_vector y_5_0;
sl.mk_slice(sl.var2slice(y), 5, 0, y_5_0);
sl.merge(y_5_0, sl.var2slice(b));
pvar b = sl.mk_extract_var(y, 5, 0);
std::cout << sl << "\n";
}
// x[7:3] = a
// y[5:0] = b
// x[5:0] = c
// x[5:4] ++ y[3:0] = d
// x = y
//
// How easily can we find b=c and b=d?
static void test3() {
std::cout << __func__ << "\n";
scoped_solver_slicing s;
slicing& sl = s.sl();
pvar x = s.add_var(8);
pvar y = s.add_var(8);
std::cout << sl << "\n";
pvar a = sl.mk_extract_var(x, 7, 3);
std::cout << "v" << a << " := v" << x << "[7:3]\n" << sl << "\n";
pvar b = sl.mk_extract_var(y, 5, 0);
std::cout << "v" << b << " := v" << y << "[5:0]\n" << sl << "\n";
pvar c = sl.mk_extract_var(x, 5, 0);
std::cout << "v" << c << " := v" << x << "[5:0]\n" << sl << "\n";
pdd d = sl.mk_concat(sl.mk_extract(x, 5, 4), sl.mk_extract(y, 3, 0));
std::cout << d << " := v" << x << "[5:4] ++ v" << y << "[3:0]\n" << sl << "\n";
sl.merge(sl.var2slice(x), sl.var2slice(y));
std::cout << "v" << x << " = v" << y << "\n" << sl << "\n";
}
};
}
@ -92,5 +108,6 @@ void tst_slicing() {
using namespace polysat;
test_slicing::test1();
test_slicing::test2();
test_slicing::test3();
std::cout << "ok\n";
}