diff options
Diffstat (limited to 'frontends/ast')
| -rw-r--r-- | frontends/ast/genrtlil.cc | 2 | ||||
| -rw-r--r-- | frontends/ast/simplify.cc | 22 |
2 files changed, 18 insertions, 6 deletions
diff --git a/frontends/ast/genrtlil.cc b/frontends/ast/genrtlil.cc index 4c25287ad..020b4e5e8 100644 --- a/frontends/ast/genrtlil.cc +++ b/frontends/ast/genrtlil.cc @@ -877,7 +877,7 @@ void AstNode::detectSignWidthWorker(int &width_hint, bool &sign_hint, bool *foun this_width = id_ast->children[0]->range_left - id_ast->children[0]->range_right + 1; if (children.size() > 1) range = children[1]; - } else if (id_ast->type == AST_STRUCT_ITEM) { + } else if (id_ast->type == AST_STRUCT_ITEM || id_ast->type == AST_STRUCT) { AstNode *tmp_range = make_struct_member_range(this, id_ast); this_width = tmp_range->range_left - tmp_range->range_right + 1; delete tmp_range; diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc index 000877612..565025d3a 100644 --- a/frontends/ast/simplify.cc +++ b/frontends/ast/simplify.cc @@ -307,6 +307,10 @@ static int size_packed_struct(AstNode *snode, int base_offset) if (node->type == AST_STRUCT || node->type == AST_UNION) { // embedded struct or union width = size_packed_struct(node, base_offset + offset); + // set range of struct + node->range_right = base_offset + offset; + node->range_left = base_offset + offset + width - 1; + node->range_valid = true; } else { log_assert(node->type == AST_STRUCT_ITEM); @@ -493,14 +497,12 @@ static void add_members_to_scope(AstNode *snode, std::string name) // in case later referenced in assignments log_assert(snode->type==AST_STRUCT || snode->type==AST_UNION); for (auto *node : snode->children) { + auto member_name = name + "." + node->str; + current_scope[member_name] = node; if (node->type != AST_STRUCT_ITEM) { // embedded struct or union add_members_to_scope(node, name + "." + node->str); } - else { - auto member_name = name + "." + node->str; - current_scope[member_name] = node; - } } } @@ -1341,6 +1343,16 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage, case AST_PARAMETER: case AST_LOCALPARAM: + // if parameter is implicit type which is the typename of a struct or union, + // save information about struct in wiretype attribute + if (children[0]->type == AST_IDENTIFIER && current_scope.count(children[0]->str) > 0) { + auto item_node = current_scope[children[0]->str]; + if (item_node->type == AST_STRUCT || item_node->type == AST_UNION) { + attributes[ID::wiretype] = item_node->clone(); + size_packed_struct(attributes[ID::wiretype], 0); + add_members_to_scope(attributes[ID::wiretype], str); + } + } while (!children[0]->basic_prep && children[0]->simplify(false, false, false, stage, -1, false, true) == true) did_something = true; children[0]->detectSignWidth(width_hint, sign_hint); @@ -2018,7 +2030,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage, if (name_has_dot(str, sname)) { if (current_scope.count(str) > 0) { auto item_node = current_scope[str]; - if (item_node->type == AST_STRUCT_ITEM) { + if (item_node->type == AST_STRUCT_ITEM || item_node->type == AST_STRUCT) { // structure member, rewrite this node to reference the packed struct wire auto range = make_struct_member_range(this, item_node); newNode = new AstNode(AST_IDENTIFIER, range); |