From 0b56be8c5634f8b953cd3d087b4b6e2a11a2c173 Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Tue, 6 Aug 2019 15:24:55 -0700
Subject: [PATCH] Restore original SigSpec::extract()

---
 kernel/rtlil.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc
index f2c81db72..ba8472ec1 100644
--- a/kernel/rtlil.cc
+++ b/kernel/rtlil.cc
@@ -3355,7 +3355,7 @@ RTLIL::SigSpec RTLIL::SigSpec::extract(int offset, int length) const
 {
 	unpack();
 	cover("kernel.rtlil.sigspec.extract_pos");
-	return std::vector<RTLIL::SigBit>(bits_.begin() + offset, length >= 0 ? bits_.begin() + offset + length : bits_.end() + length + 1);
+	return std::vector<RTLIL::SigBit>(bits_.begin() + offset, bits_.begin() + offset + length);
 }
 
 void RTLIL::SigSpec::append(const RTLIL::SigSpec &signal)