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-rw-r--r--frontends/ast/ast.cc3
-rw-r--r--frontends/ast/genrtlil.cc2
-rw-r--r--frontends/ast/simplify.cc5
3 files changed, 5 insertions, 5 deletions
diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc
index 6097f02f5..982943d1b 100644
--- a/frontends/ast/ast.cc
+++ b/frontends/ast/ast.cc
@@ -1649,7 +1649,7 @@ RTLIL::IdString AstModule::derive(RTLIL::Design *design, const dict<RTLIL::IdStr
AstNode *new_ast = NULL;
std::string modname = derive_common(design, parameters, &new_ast, quiet);
- if (!design->has(modname)) {
+ if (!design->has(modname) && new_ast) {
new_ast->str = modname;
process_module(design, new_ast, false, NULL, quiet);
design->module(modname)->check();
@@ -1699,6 +1699,7 @@ std::string AST::derived_module_name(std::string stripped_name, const std::vecto
std::string AstModule::derive_common(RTLIL::Design *design, const dict<RTLIL::IdString, RTLIL::Const> &parameters, AstNode **new_ast_out, bool quiet)
{
std::string stripped_name = name.str();
+ (*new_ast_out) = nullptr;
if (stripped_name.compare(0, 9, "$abstract") == 0)
stripped_name = stripped_name.substr(9);
diff --git a/frontends/ast/genrtlil.cc b/frontends/ast/genrtlil.cc
index 9327b34ee..1016ef636 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 || id_ast->type == AST_STRUCT) {
+ } else if (id_ast->type == AST_STRUCT_ITEM || id_ast->type == AST_STRUCT || id_ast->type == AST_UNION) {
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 da7933d2f..2dbabca28 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -2063,7 +2063,7 @@ 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 || item_node->type == AST_STRUCT) {
+ if (item_node->type == AST_STRUCT_ITEM || item_node->type == AST_STRUCT || item_node->type == AST_UNION) {
// 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);
@@ -4705,8 +4705,7 @@ void AstNode::mem2reg_as_needed_pass1(dict<AstNode*, pool<std::string>> &mem2reg
children_flags |= AstNode::MEM2REG_FL_ASYNC;
proc_flags_p = new dict<AstNode*, uint32_t>;
}
-
- if (type == AST_INITIAL) {
+ else if (type == AST_INITIAL) {
children_flags |= AstNode::MEM2REG_FL_INIT;
proc_flags_p = new dict<AstNode*, uint32_t>;
}