Update CI

Author: mrLSD

.github/workflows/swift.yaml

@@ -24,6 +24,8 @@ jobs:
         echo 'export CPPFLAGS="-I/usr/local/opt/llvm/include"' >> /Users/runner/.bash_profile
         source /Users/runner/.bash_profile
         clang --version
+	echo "=====> Checking LLC"
+        llc --version
         swift --version
         swift utils/make-pkg-config.swift