From: Clifford Wolf <clifford@clifford.at>
Date: Thu, 21 Feb 2019 16:55:33 +0000 (+0100)
Subject: Fix handling of expression width in $past, fixes #810
X-Git-Tag: yosys-0.9~305^2~2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=974927adcf916fc953ae4b756fd1806cfa423655;p=yosys.git

Fix handling of expression width in $past, fixes #810

Signed-off-by: Clifford Wolf <clifford@clifford.at>
---

diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index 83714f897..6ae62ead8 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -1778,7 +1778,7 @@ skip_dynamic_range_lvalue_expansion:;
 
 			if (str == "\\$past")
 			{
-				if (width_hint <= 0)
+				if (width_hint < 0)
 					goto replace_fcall_later;
 
 				int num_steps = 1;