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-rw-r--r--frontends/ast/simplify.cc15
1 files changed, 8 insertions, 7 deletions
diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index ced5e5cf9..372dcf95c 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -931,9 +931,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
);
}
//start building attribute string
- std::string enum_item_str = "\\enum_";
- enum_item_str.append(std::to_string(width));
- enum_item_str.append("_");
+ std::string enum_item_str = "\\enum_value_";
//get enum item value
if(enum_item->children[0]->type != AST_CONSTANT){
log_error("expected const, got %s for %s (%s)\n",
@@ -941,8 +939,8 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
enum_item->str.c_str(), enum_node->str.c_str()
);
}
- int val = enum_item->children[0]->asInt(is_signed);
- enum_item_str.append(std::to_string(val));
+ RTLIL::Const val = enum_item->children[0]->bitsAsConst(width, is_signed);
+ enum_item_str.append(val.as_string());
//set attribute for available val to enum item name mappings
attributes[enum_item_str.c_str()] = mkconst_str(enum_item->str);
}
@@ -1171,7 +1169,8 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
// annotate identifiers using scope resolution and create auto-wires as needed
if (type == AST_IDENTIFIER) {
if (current_scope.count(str) == 0) {
- for (auto node : current_ast_mod->children) {
+ AstNode *current_scope_ast = (current_ast_mod == nullptr) ? current_ast : current_ast_mod;
+ for (auto node : current_scope_ast->children) {
//log("looking at mod scope child %s\n", type2str(node->type).c_str());
switch (node->type) {
case AST_PARAMETER:
@@ -1205,7 +1204,9 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
}
}
if (current_scope.count(str) == 0) {
- if (flag_autowire || str == "\\$global_clock") {
+ if (current_ast_mod == nullptr) {
+ log_file_error(filename, location.first_line, "Identifier `%s' is implicitly declared outside of a module.\n", str.c_str());
+ } else if (flag_autowire || str == "\\$global_clock") {
AstNode *auto_wire = new AstNode(AST_AUTOWIRE);
auto_wire->str = str;
current_ast_mod->children.push_back(auto_wire);