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remove a few random mem allocs

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This commit is contained in:
Nuno Lopes 2018-06-29 18:34:17 +01:00
parent cbc5aaad2c
commit bc8cd7ff55
2 changed files with 15 additions and 17 deletions
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14
src/ast/rewriter/bv_rewriter.cpp
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@ -1383,7 +1383,7 @@ br_status bv_rewriter::mk_bv2int(expr * arg, expr_ref & result) {
--i;
tmp = args[i].get();
tmp = m_autil.mk_mul(m_autil.mk_numeral(power(numeral(2), sz), true), tmp);
args[i] = tmp;
args[i] = std::move(tmp);
sz += get_bv_size(to_app(arg)->get_arg(i));
}
result = m_autil.mk_add(args.size(), args.c_ptr());
@ -2400,8 +2400,8 @@ bool bv_rewriter::isolate_term(expr* lhs, expr* rhs, expr_ref& result) {
return false;
}
unsigned sz = to_app(rhs)->get_num_args();
expr_ref t1(m()), t2(m());
t1 = to_app(rhs)->get_arg(0);
expr * t1 = to_app(rhs)->get_arg(0);
expr_ref t2(m());
if (sz > 2) {
t2 = m().mk_app(get_fid(), OP_BADD, sz-1, to_app(rhs)->get_args()+1);
}
@ -2597,14 +2597,10 @@ br_status bv_rewriter::mk_eq_core(expr * lhs, expr * rhs, expr_ref & result) {
result = m().mk_bool_val(new_lhs == new_rhs);
return BR_DONE;
}
}
else {
new_lhs = lhs;
new_rhs = rhs;
lhs = new_lhs;
rhs = new_rhs;
}
lhs = new_lhs;
rhs = new_rhs;
// Try to rewrite t1 + t2 = c --> t1 = c - t2
// Reason: it is much cheaper to bit-blast.
if (isolate_term(lhs, rhs, result)) {