From: Eddie Hung <eddie@fpgeh.com>
Date: Mon, 4 May 2020 19:18:20 +0000 (-0700)
Subject: ast: swap range regardless of range_left >= 0
X-Git-Tag: working-ls180~557^2~1
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e936ac61ea223ca27c1b6eaf195cac66dd255602;p=yosys.git

ast: swap range regardless of range_left >= 0
---

diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index 837c14ad7..cdb7e91e0 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -1079,7 +1079,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
 		}
 		if (old_range_valid != range_valid)
 			did_something = true;
-		if (range_valid && range_left >= 0 && range_right > range_left) {
+		if (range_valid && range_right > range_left) {
 			int tmp = range_right;
 			range_right = range_left;
 			range_left = tmp;