Also rename cells with _TECHMAP_REPLACE_. prefix, as per @cliffordwolf

1 files changed, 8 insertions, 4 deletions

diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc
index 8f8cff9fa..0c57733d4 100644
--- a/passes/techmap/techmap.cc
+++ b/passes/techmap/techmap.cc
@@ -384,6 +384,8 @@ struct TechmapWorker
 
 			if (techmap_replace_cell)
 				c_name = orig_cell_name;
+			else if (it.second->name.begins_with("\\_TECHMAP_REPLACE_."))
+				c_name = stringf("%s%s", orig_cell_name.c_str(), c_name.c_str() + strlen("\\_TECHMAP_REPLACE_"));
 			else
 				apply_prefix(cell->name, c_name);
 
@@ -1204,10 +1206,12 @@ struct TechmapPass : public Pass {
 		log("\n");
 		log("A cell with the name _TECHMAP_REPLACE_ in the map file will inherit the name\n");
 		log("and attributes of the cell that is being replaced.\n");
-		log("A wire with a name of the form `_TECHMAP_REPLACE_.<suffix>` in the map file will\n");
-		log("cause a new wire alias to be created with its name set to the original but with\n");
-		log("its `_TECHMAP_REPLACE_' prefix to be substituted with the name of the cell being\n");
-		log("replaced.\n");
+		log("A cell with a name of the form `_TECHMAP_REPLACE_.<suffix>` in the map file will\n");
+		log("be named thus but with the `_TECHMAP_REPLACE_' prefix substituted with the name\n");
+		log("of the cell being replaced.\n");
+		log("Similarly, a wire named in the form `_TECHMAP_REPLACE_.<suffix>` will cause a\n");
+		log("new wire alias to be created and named as above but with the `_TECHMAP_REPLACE_'\n");
+		log("prefix also substituted.\n");
 		log("\n");
 		log("See 'help extract' for a pass that does the opposite thing.\n");
 		log("\n");