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Don't warning about floating local/internal symbols.

This commit is contained in:
Stephen Williams 2015-10-02 11:23:05 -07:00
parent a65c007fdb
commit 35b6bdf578
1 changed files with 3 additions and 1 deletions
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4
nodangle.cc
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@ -132,6 +132,7 @@ static bool floating_net_tested(NetNet*sig)
static void check_is_floating(NetNet*sig)
{
// Some signal types are implicitly driven if nothing else.
if (sig->type() == NetNet::SUPPLY0) return;
if (sig->type() == NetNet::SUPPLY1) return;
if (sig->type() == NetNet::TRI0) return;
@ -139,6 +140,7 @@ static void check_is_floating(NetNet*sig)
if (sig->type() == NetNet::IMPLICIT_REG) return;
if (sig->type() == NetNet::REG) return ;
// Asignments drive a signal.
if (sig->peek_lref() > 0) return;
for (unsigned idx = 0 ; idx < sig->pin_count() ; idx += 1) {
@ -173,7 +175,7 @@ void nodangle_f::signal(Design*, NetNet*sig)
{
if (scomplete) return;
if (warn_floating_nets && !floating_net_tested(sig)) {
if (warn_floating_nets && !sig->local_flag() && !floating_net_tested(sig)) {
check_is_floating(sig);
}