void summarizer_fwt::inline_summaries(const function_namet &function_name,
local_SSAt &SSA, const exprt &precondition,
bool context_sensitive)
{
for(local_SSAt::nodest::const_iterator n_it = SSA.nodes.begin();
n_it != SSA.nodes.end(); n_it++)
{
for(local_SSAt::nodet::function_callst::const_iterator f_it =
n_it->function_calls.begin();
f_it != n_it->function_calls.end(); f_it++)
{
assert(f_it->function().id()==ID_symbol); //no function pointers
if(!check_call_reachable(function_name,SSA,n_it,f_it,precondition,true))
{
continue;
}
if(!check_precondition(function_name,SSA,n_it,f_it,
precondition,context_sensitive))
{
exprt precondition_call = true_exprt();
if(context_sensitive)
precondition_call = compute_calling_context(
function_name,SSA,n_it,f_it,precondition,true);
irep_idt fname = to_symbol_expr(f_it->function()).get_identifier();
status() << "Recursively summarizing function " << fname << eom;
compute_summary_rec(fname,precondition_call,context_sensitive);
summaries_used++;
}
}
}
}
void summarizer_fw_termt::inline_summaries(
const function_namet &function_name,
local_SSAt &SSA, exprt precondition,
bool context_sensitive,
threevalt &calls_terminate,
bool &has_function_calls)
{
for(local_SSAt::nodest::iterator n_it=SSA.nodes.begin();
n_it!=SSA.nodes.end(); n_it++)
{
for(local_SSAt::nodet::function_callst::iterator f_it=
n_it->function_calls.begin();
f_it!=n_it->function_calls.end(); f_it++)
{
assert(f_it->function().id()==ID_symbol); // no function pointers
exprt::operandst c;
c.push_back(precondition);
get_assertions(SSA, c); // assertions as assumptions
precondition=conjunction(c);
if(!options.get_bool_option("competition-mode") &&
!check_call_reachable(
function_name, SSA, n_it, f_it, precondition, true))
continue;
has_function_calls=true;
irep_idt fname=to_symbol_expr(f_it->function()).get_identifier();
if(!check_precondition(
function_name, SSA, n_it, f_it, precondition, context_sensitive))
{
exprt precondition_call=true_exprt();
if(context_sensitive)
precondition_call=compute_calling_context(
function_name, SSA, n_it, f_it, precondition, true);
status() << "Recursively summarizing function " << fname << eom;
compute_summary_rec(fname, precondition_call, context_sensitive);
summaries_used++;
}
// get information about callee termination
if(summary_db.exists(fname) && summary_db.get(fname).terminates!=YES)
{
// cannot propagate NO
// because call reachability might be over-approximating
calls_terminate=UNKNOWN;
break;
}
}
}
}
