Merge pull request #2110 from antmicro/yosys-clang-O3

Change default Yosys compiler to Clang with disabled debugging

Author: maliberty

build_openroad.sh

@@ -20,7 +20,7 @@ OPENROAD_APP_BRANCH="master"
 INSTALL_PATH="$(pwd)/tools/install"
 
 YOSYS_USER_ARGS=""
-YOSYS_ARGS="CONFIG=gcc"
+YOSYS_ARGS="CONFIG=clang ENABLE_NDEBUG=1"
 
 OPENROAD_APP_USER_ARGS=""
 OPENROAD_APP_ARGS=""