From c0a4b7c6700447750dc77c614053e8b6f5adbbb5 Mon Sep 17 00:00:00 2001
From: Stephen Williams <steve@icarus.com>
Date: Sat, 30 Aug 2008 17:35:57 -0700
Subject: [PATCH] Fix a bug in vector evaluation of abs().

The calculation of the abs of a signed value
was inverting the value if it was signed,
and not if it was negative.
---
 eval_tree.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eval_tree.cc b/eval_tree.cc
index 50fdaf02b..3b82d99f6 100644
--- a/eval_tree.cc
+++ b/eval_tree.cc
@@ -1775,7 +1775,7 @@ NetExpr* evaluate_abs(NetExpr*arg)
       NetEConst*tmpi = dynamic_cast<NetEConst *>(arg);
       if (tmpi) {
 	    verinum arg = tmpi->value();
-	    if (arg.has_sign()) {
+	    if (arg.is_negative()) {
 		  arg = v_not(arg) + verinum(1);
 	    }
 	    return new NetEConst(arg);