From e70e4afb60a41da6d9f6200b20f36f61c6b993b2 Mon Sep 17 00:00:00 2001
From: David Shah <dave@ds0.me>
Date: Thu, 19 Sep 2019 21:21:21 +0100
Subject: [PATCH] sv: Fix typedefs in packages

Signed-off-by: David Shah <dave@ds0.me>
---
 frontends/ast/simplify.cc        | 14 ++++++++++----
 tests/svtypes/typedef_package.sv | 11 +++++++++++
 2 files changed, 21 insertions(+), 4 deletions(-)
 create mode 100644 tests/svtypes/typedef_package.sv

diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index 9abd2916d..44e32b29c 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -796,14 +796,17 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
 			log_assert(children.size() == 1);
 			log_assert(children[0]->type == AST_WIRETYPE);
 			if (!current_scope.count(children[0]->str))
-				log_file_error(filename, linenum, "Unknown identifier `%s' used as type name", children[0]->str.c_str());
+				log_file_error(filename, linenum, "Unknown identifier `%s' used as type name\n", children[0]->str.c_str());
 			AstNode *resolved_type = current_scope.at(children[0]->str);
 			if (resolved_type->type != AST_TYPEDEF)
-				log_file_error(filename, linenum, "`%s' does not name a type", children[0]->str.c_str());
+				log_file_error(filename, linenum, "`%s' does not name a type\n", children[0]->str.c_str());
 			log_assert(resolved_type->children.size() == 1);
 			AstNode *templ = resolved_type->children[0];
 			delete_children(); // type reference no longer needed
 
+			// Ensure typedef itself is fully simplified
+			while(templ->simplify(const_fold, at_zero, in_lvalue, stage, width_hint, sign_hint, in_param)) {};
+
 			is_reg = templ->is_reg;
 			is_logic = templ->is_logic;
 			is_signed = templ->is_signed;
@@ -826,15 +829,18 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
 			log_assert(children.size() == 2);
 			log_assert(children[1]->type == AST_WIRETYPE);
 			if (!current_scope.count(children[1]->str))
-				log_file_error(filename, linenum, "Unknown identifier `%s' used as type name", children[1]->str.c_str());
+				log_file_error(filename, linenum, "Unknown identifier `%s' used as type name\n", children[1]->str.c_str());
 			AstNode *resolved_type = current_scope.at(children[1]->str);
 			if (resolved_type->type != AST_TYPEDEF)
-				log_file_error(filename, linenum, "`%s' does not name a type", children[1]->str.c_str());
+				log_file_error(filename, linenum, "`%s' does not name a type\n", children[1]->str.c_str());
 			log_assert(resolved_type->children.size() == 1);
 			AstNode *templ = resolved_type->children[0];
 			delete children[1];
 			children.pop_back();
 
+			// Ensure typedef itself is fully simplified
+			while(templ->simplify(const_fold, at_zero, in_lvalue, stage, width_hint, sign_hint, in_param)) {};
+
 			is_signed = templ->is_signed;
 			is_string = templ->is_string;
 			is_custom_type = templ->is_custom_type;
diff --git a/tests/svtypes/typedef_package.sv b/tests/svtypes/typedef_package.sv
new file mode 100644
index 000000000..4aa22b6af
--- /dev/null
+++ b/tests/svtypes/typedef_package.sv
@@ -0,0 +1,11 @@
+package pkg;
+	typedef logic [7:0] uint8_t;
+endpackage
+
+module top;
+
+	(* keep *) pkg::uint8_t a = 8'hAA;
+
+	always @* assert(a == 8'hAA);
+
+endmodule
\ No newline at end of file