From bc3d9f31088b2c8c41e5796c6f239cef54deea62 Mon Sep 17 00:00:00 2001
From: YRabbit <rabbit@yrabbit.cyou>
Date: Wed, 14 Dec 2022 15:35:55 +1000
Subject: gowin: not crush on unknown clock tap's sources

As preparation for possible changes to the clock wiring system.

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---
 gowin/gfx.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gowin/gfx.cc b/gowin/gfx.cc
index 048ae62e..5abb1399 100644
--- a/gowin/gfx.cc
+++ b/gowin/gfx.cc
@@ -4971,7 +4971,7 @@ void gfxSetPipDefaultDecal(Arch *arch, PipInfo &pip)
         // clock?
         if (dst_loc_id.in(id_GT00, id_GT10)) {
             WireInfo &wi = arch->wire_info(pip.srcWire);
-            if (wi.type.str(arch).substr(0, 3) != "UNK") {
+            if (wi.type.str(arch).substr(0, 5) == "SPINE") {
                 // create pip
                 GraphicElement el;
                 el.type = GraphicElement::TYPE_LOCAL_LINE;
-- 
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