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-rw-r--r--kernel/yosys.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/yosys.cc b/kernel/yosys.cc
index 7e9f320e0..8986c8091 100644
--- a/kernel/yosys.cc
+++ b/kernel/yosys.cc
@@ -1050,6 +1050,8 @@ void run_backend(std::string filename, std::string command, RTLIL::Design *desig
if (command == "auto") {
if (filename.size() > 2 && filename.compare(filename.size()-2, std::string::npos, ".v") == 0)
command = "verilog";
+ else if (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".sv") == 0)
+ command = "verilog -sv";
else if (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".il") == 0)
command = "ilang";
else if (filename.size() > 3 && filename.compare(filename.size()-3, std::string::npos, ".cc") == 0)