diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@@ -431,6 +431,7 @@
   BPF
   Hexagon
   Lanai
+  LoongArch
   Mips
   MSP430
   NVPTX