Added ID() macro for static IdStrings

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/yosys.h b/kernel/yosys.h
index 34777c9a..f9bbc0e4 100644
--- a/kernel/yosys.h
+++ b/kernel/yosys.h
@@ -103,6 +103,9 @@ RTLIL::IdString new_id(std::string file, int line, std::string func);
 #define NEW_ID \
 	YOSYS_NAMESPACE_PREFIX new_id(__FILE__, __LINE__, __FUNCTION__)
 
+#define ID(_str) \
+	([]() { static YOSYS_NAMESPACE_PREFIX RTLIL::IdString _id(_str); return _id; })()
+
 RTLIL::Design *yosys_get_design();
 std::string proc_self_dirname();
 std::string proc_share_dirname();