Adding autoname patch.

Signed-off-by: Tim 'mithro' Ansell <[email protected]>

dependency_support/at_clifford_yosys/at_clifford_yosys.bzl

@@ -29,5 +29,6 @@ def at_clifford_yosys():
         build_file = Label("@rules_hdl//dependency_support:at_clifford_yosys/bundled.BUILD.bazel"),
         patches = [
             Label("@rules_hdl//dependency_support:at_clifford_yosys/yosys.patch"),
+            Label("@rules_hdl//dependency_support:at_clifford_yosys/autoname.patch"),
         ],
     )

dependency_support/at_clifford_yosys/autoname.patch

@@ -0,0 +1,36 @@
+diff --git a/passes/cmds/autoname.cc b/passes/cmds/autoname.cc
+index 737bd3e58..474303263 100644
+--- passes/cmds/autoname.cc
++++ passes/cmds/autoname.cc
+@@ -34,8 +34,13 @@ int autoname_worker(Module *module, const dict<Wire*, int>& wire_score)
+ 				string suffix;
+ 				for (auto bit : conn.second)
+ 					if (bit.wire != nullptr && bit.wire->name[0] != '$') {
+-						if (suffix.empty())
+-							suffix = stringf("_%s_%s", log_id(cell->type), log_id(conn.first));
++						if (suffix.empty()) {
++							if (bit.wire->width > 1) {
++								suffix = stringf("%i_%s_%s", bit.offset, log_id(cell->type), log_id(conn.first));
++							} else {
++								suffix = stringf("_%s_%s", log_id(cell->type), log_id(conn.first));
++							}
++						}
+ 						string new_name(bit.wire->name.str() + suffix);
+ 						int score = wire_score.at(bit.wire);
+ 						if (cell->output(conn.first)) score = 0;
+@@ -52,8 +57,13 @@ int autoname_worker(Module *module, const dict<Wire*, int>& wire_score)
+ 				string suffix;
+ 				for (auto bit : conn.second)
+ 					if (bit.wire != nullptr && bit.wire->name[0] == '$' && !bit.wire->port_id) {
+-						if (suffix.empty())
+-							suffix = stringf("_%s", log_id(conn.first));
++						if (suffix.empty()) {
++							if (bit.wire->width > 1) {
++								suffix = stringf("%i_%s", bit.offset, log_id(conn.first));
++							} else {
++								suffix = stringf("_%s", log_id(conn.first));
++							}
++						}
+ 						string new_name(cell->name.str() + suffix);
+ 						int score = wire_score.at(bit.wire);
+ 						if (cell->output(conn.first)) score = 0;