From f261bf7e973f863e080b82010b529115aa1b8c9e Mon Sep 17 00:00:00 2001
From: Nick Gasson <nick@nickg.me.uk>
Date: Mon, 23 Jun 2008 15:13:10 +0100
Subject: [PATCH] Fix bug where variables could be declared twice

---
 tgt-vhdl/stmt.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tgt-vhdl/stmt.cc b/tgt-vhdl/stmt.cc
index 6a0f562ba..9407a84ef 100644
--- a/tgt-vhdl/stmt.cc
+++ b/tgt-vhdl/stmt.cc
@@ -185,7 +185,7 @@ static int draw_assign(vhdl_process *proc, stmt_container *container,
       // As with non-blocking assignment, push constant assignments
       // into the initialisation if we can
       if (proc->is_initial() && ivl_signal_port(sig) == IVL_SIP_NONE
-          && rhs->constant()) {
+          && rhs->constant() && !proc->have_declared_var(signame)) {
          decl->set_initial(rhs);
 
          // This signal may be used e.g. in a loop test so we need