diff options
Diffstat (limited to 'frontends')
| -rw-r--r-- | frontends/ast/simplify.cc | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc index 5fa4ac83b..c6d63f247 100644 --- a/frontends/ast/simplify.cc +++ b/frontends/ast/simplify.cc @@ -3344,11 +3344,22 @@ skip_dynamic_range_lvalue_expansion:; wire->children.insert(wire->children.begin(), arg->clone()); // args without a range implicitly have width 1 if (wire->children.back()->type != AST_RANGE) { - AstNode* range = new AstNode(); - range->type = AST_RANGE; - wire->children.push_back(range); - range->children.push_back(mkconst_int(0, true)); - range->children.push_back(mkconst_int(0, true)); + // check if this wire is redeclared with an explicit size + bool uses_explicit_size = false; + for (const AstNode *other_child : decl->children) + if (other_child->type == AST_WIRE && child->str == other_child->str + && !other_child->children.empty() + && other_child->children.back()->type == AST_RANGE) { + uses_explicit_size = true; + break; + } + if (!uses_explicit_size) { + AstNode* range = new AstNode(); + range->type = AST_RANGE; + wire->children.push_back(range); + range->children.push_back(mkconst_int(0, true)); + range->children.push_back(mkconst_int(0, true)); + } } continue; } |