From b7bd5956ea5e40f9ef59550b766d3e85c80cf161 Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Sun, 4 Aug 2019 14:48:17 -0400
Subject: [PATCH] Concats should be unsigned

---
 src/V3Const.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/V3Const.cpp b/src/V3Const.cpp
index d65e02996..9439f3b95 100644
--- a/src/V3Const.cpp
+++ b/src/V3Const.cpp
@@ -833,7 +833,7 @@ private:
             // use the lhs to replace the parent concat
             lp->lhsp()->replaceWith(newlp);
             lp->rhsp()->replaceWith(newrp);
-            lp->dtypeChgWidthSigned(newlp->width(), newlp->width(), AstNumeric::SIGNED);
+            lp->dtypeChgWidthSigned(newlp->width(), newlp->width(), AstNumeric::UNSIGNED);
             UINFO(5, "merged "<< nodep <<endl);
             rp->unlinkFrBack()->deleteTree(); VL_DANGLING(rp);
             nodep->replaceWith(lp->unlinkFrBack()); nodep->deleteTree(); VL_DANGLING(nodep);