vectors bug

R=r
OCL=15664
CL=15664
diff --git a/src/cmd/6g/gg.h b/src/cmd/6g/gg.h
index 5d1f703..5a45aca 100644
--- a/src/cmd/6g/gg.h
+++ b/src/cmd/6g/gg.h
@@ -153,7 +153,7 @@
 void	igen(Node*, Node*, Node*);
 vlong	fieldoffset(Type*, Node*);
 void	bgen(Node*, int, Prog*);
-void	sgen(Node*, Node*, uint32);
+void	sgen(Node*, Node*, int32);
 void	gmove(Node*, Node*);
 Prog*	gins(int, Node*, Node*);
 int	samaddr(Node*, Node*);