1 files changed, 8 insertions, 0 deletions
diff --git a/fpga_interchange/arch.h b/fpga_interchange/arch.h
index 70862b1b..0522034f 100644
--- a/fpga_interchange/arch.h
+++ b/fpga_interchange/arch.h
@@ -34,6 +34,7 @@
 #include "relptr.h"
 
 #include "arch_iterators.h"
+#include "cell_parameters.h"
 #include "chipdb.h"
 #include "dedicated_interconnect.h"
 #include "lookahead.h"
@@ -1027,6 +1028,12 @@ struct Arch : ArchAPI<ArchRanges>
         return wire_data.site != -1;
     }
 
+    // Does this pip always invert its signal?
+    bool is_inverting(PipId pip) const;
+
+    // Can this pip optional invert its signal?
+    bool can_invert(PipId pip) const;
+
     void merge_constant_nets();
     void report_invalid_bel(BelId bel, CellInfo *cell) const;
 
@@ -1047,6 +1054,7 @@ struct Arch : ArchAPI<ArchRanges>
     Lookahead lookahead;
     mutable RouteNodeStorage node_storage;
     mutable SiteRoutingCache site_routing_cache;
+    CellParameters cell_parameters;
 
     std::string chipdb_hash;
     std::string get_chipdb_hash() const;