diff options
Diffstat (limited to 'frontends/ast')
| -rw-r--r-- | frontends/ast/simplify.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc index feb810674..94423366e 100644 --- a/frontends/ast/simplify.cc +++ b/frontends/ast/simplify.cc @@ -120,6 +120,8 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage) if (node->type == AST_WIRE) { if (this_wire_scope.count(node->str) > 0) { AstNode *first_node = this_wire_scope[node->str]; + if (!node->is_input && !node->is_output && node->is_reg && node->children.size() == 0) + goto wires_are_compatible; if (first_node->children.size() != node->children.size()) goto wires_are_incompatible; for (size_t j = 0; j < node->children.size(); j++) { @@ -138,6 +140,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage) goto wires_are_incompatible; if (first_node->port_id == 0 && (node->is_input || node->is_output)) goto wires_are_incompatible; + wires_are_compatible: if (node->is_input) first_node->is_input = true; if (node->is_output) |