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| author | whitequark <whitequark@whitequark.org> | 2020-12-22 01:30:29 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-12-22 01:30:29 +0000 |
| commit | df905709ca8bc2a92e8cef6855b53c5f032e491d (patch) | |
| tree | 86f32860f7b1190054f234dc83b56b7117f93aa3 /passes/hierarchy | |
| parent | b62a892b2f0b71fd6910afe68bbba9d338579f98 (diff) | |
| parent | 0d8e5d965f2585e6ed151a9e92d83ee63df6172a (diff) | |
| download | yosys-df905709ca8bc2a92e8cef6855b53c5f032e491d.tar.gz yosys-df905709ca8bc2a92e8cef6855b53c5f032e491d.tar.bz2 yosys-df905709ca8bc2a92e8cef6855b53c5f032e491d.zip | |
Merge pull request #2491 from zachjs/port-bind-sign
Sign extend port connections where necessary
Diffstat (limited to 'passes/hierarchy')
| -rw-r--r-- | passes/hierarchy/hierarchy.cc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/passes/hierarchy/hierarchy.cc b/passes/hierarchy/hierarchy.cc index 225e1feae..3372687e1 100644 --- a/passes/hierarchy/hierarchy.cc +++ b/passes/hierarchy/hierarchy.cc @@ -1233,14 +1233,18 @@ struct HierarchyPass : public Pass { { int n = GetSize(conn.second) - GetSize(w); if (!w->port_input && w->port_output) - module->connect(sig.extract(GetSize(w), n), Const(0, n)); + { + RTLIL::SigSpec out = sig.extract(0, GetSize(w)); + out.extend_u0(GetSize(sig), w->is_signed); + module->connect(sig.extract(GetSize(w), n), out.extract(GetSize(w), n)); + } sig.remove(GetSize(w), n); } else { int n = GetSize(w) - GetSize(conn.second); if (w->port_input && !w->port_output) - sig.append(Const(0, n)); + sig.extend_u0(GetSize(w), sig.is_wire() && sig.as_wire()->is_signed); else sig.append(module->addWire(NEW_ID, n)); } |