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fix #6676 get rid of rem0 declare it to be mod0 semantics to simplify code paths

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This commit is contained in:
Nikolaj Bjorner 2023-04-11 16:46:30 -07:00
parent 58a2a9c79c
commit 0b5c38dea5
5 changed files with 7 additions and 14 deletions
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7
src/ast/arith_decl_plugin.cpp
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@ -365,7 +365,6 @@ inline func_decl * arith_decl_plugin::mk_func_decl(decl_kind k, bool is_real) {
case OP_MOD: return m_i_mod_decl;
case OP_DIV0: return m_manager->mk_func_decl(symbol("/0"), m_real_decl, m_real_decl, m_real_decl, func_decl_info(m_family_id, OP_DIV0));
case OP_IDIV0: return m_manager->mk_func_decl(symbol("div0"), m_int_decl, m_int_decl, m_int_decl, func_decl_info(m_family_id, OP_IDIV0));
case OP_REM0: return m_manager->mk_func_decl(symbol("rem0"), m_int_decl, m_int_decl, m_int_decl, func_decl_info(m_family_id, OP_REM0));
case OP_MOD0: return m_manager->mk_func_decl(symbol("mod0"), m_int_decl, m_int_decl, m_int_decl, func_decl_info(m_family_id, OP_MOD0));
case OP_POWER0:
if (is_real) {
@ -612,7 +611,6 @@ void arith_decl_plugin::get_op_names(svector<builtin_name>& op_names, symbol con
op_names.push_back(builtin_name("euler", OP_E));
op_names.push_back(builtin_name("/0",OP_DIV0));
op_names.push_back(builtin_name("div0",OP_IDIV0));
op_names.push_back(builtin_name("rem0",OP_REM0));
op_names.push_back(builtin_name("mod0",OP_MOD0));
}
}
@ -821,7 +819,7 @@ bool arith_util::is_considered_uninterpreted(func_decl* f, unsigned n, expr* con
}
if (is_decl_of(f, arith_family_id, OP_REM) && n == 2 && is_numeral(args[1], r) && r.is_zero()) {
sort* rs[2] = { mk_int(), mk_int() };
f_out = m_manager.mk_func_decl(arith_family_id, OP_REM0, 0, nullptr, 2, rs, mk_int());
f_out = m_manager.mk_func_decl(arith_family_id, OP_MOD0, 0, nullptr, 2, rs, mk_int());
return true;
}
if (is_decl_of(f, arith_family_id, OP_POWER) && n == 2 && is_numeral(args[1], r) && r.is_zero() && is_numeral(args[0], r) && r.is_zero()) {
@ -857,7 +855,7 @@ func_decl* arith_util::mk_idiv0() {
func_decl* arith_util::mk_rem0() {
sort* rs[2] = { mk_int(), mk_int() };
return m_manager.mk_func_decl(arith_family_id, OP_REM0, 0, nullptr, 2, rs, mk_int());
return m_manager.mk_func_decl(arith_family_id, OP_MOD0, 0, nullptr, 2, rs, mk_int());
}
func_decl* arith_util::mk_mod0() {
@ -942,7 +940,6 @@ bool arith_util::is_underspecified(expr* e) const {
case OP_MOD:
case OP_DIV0:
case OP_IDIV0:
case OP_REM0:
case OP_MOD0:
return true;
default: