From 04a6dbc562b5d950272b1d93a2f764faa4d159bf Mon Sep 17 00:00:00 2001
From: Robert O'Callahan <rocallahan@google.com>
Date: Tue, 28 Oct 2025 12:38:03 +0000
Subject: [PATCH] Make SigSpec::has_marked_bits use chunk iterator

---
 kernel/rtlil.cc | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc
index ab16c89b9..279b7b2ce 100644
--- a/kernel/rtlil.cc
+++ b/kernel/rtlil.cc
@@ -5519,11 +5519,10 @@ bool RTLIL::SigSpec::has_marked_bits() const
 {
 	cover("kernel.rtlil.sigspec.has_marked_bits");
 
-	pack();
-	for (auto it = chunks_.begin(); it != chunks_.end(); it++)
-		if (it->width > 0 && it->wire == NULL) {
-			for (size_t i = 0; i < it->data.size(); i++)
-				if (it->data[i] == RTLIL::State::Sm)
+	for (auto &chunk : chunks())
+		if (chunk.width > 0 && chunk.wire == NULL) {
+			for (RTLIL::State d : chunk.data)
+				if (d == RTLIL::State::Sm)
 					return true;
 		}
 	return false;