From bb34aeb7f1881ad03a320f9f792994a88afe5fe2 Mon Sep 17 00:00:00 2001
From: Jacob Lifshay <programmerjake@gmail.com>
Date: Sun, 14 Jun 2026 18:46:06 -0700
Subject: [PATCH] fayalite::build::verilog: tell firtool to only preserve
 values with significant names

---
 crates/fayalite/src/build/verilog.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/fayalite/src/build/verilog.rs b/crates/fayalite/src/build/verilog.rs
index 7ce77ec..9c54ba8 100644
--- a/crates/fayalite/src/build/verilog.rs
+++ b/crates/fayalite/src/build/verilog.rs
@@ -211,7 +211,7 @@ impl ExternalCommand for UnadjustedVerilog {
         args.write_arg("-o");
         args.write_interned_arg(unadjusted_verilog_file_name);
         if verilog_debug {
-            args.write_args(["-g", "--preserve-values=all"]);
+            args.write_args(["-g", "--preserve-values=named"]);
         }
         if let Some(dialect) = verilog_dialect {
             args.write_args(dialect.firtool_extra_args().iter().copied());