1LLVM_ROOT_PATH := external/llvm 2 3CLEAR_TBLGEN_VARS := $(LLVM_ROOT_PATH)/clear_tblgen_vars.mk 4LLVM_HOST_BUILD_MK := $(LLVM_ROOT_PATH)/llvm-host-build.mk 5LLVM_DEVICE_BUILD_MK := $(LLVM_ROOT_PATH)/llvm-device-build.mk 6LLVM_GEN_ATTRIBUTES_MK := $(LLVM_ROOT_PATH)/llvm-gen-attributes.mk 7LLVM_GEN_INTRINSICS_MK := $(LLVM_ROOT_PATH)/llvm-gen-intrinsics.mk 8 9LLVM_SUPPORTED_ARCH := arm arm64 mips mips64 x86 x86_64 10