Address review comments.

llvm/CMakeLists.txt

else()
   set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default OFF)
 endif()
 set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR ${LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default} CACHE BOOL
   "Enable per-target runtimes directory")
 
 set(LLVM_PROFDATA_FILE "" CACHE FILEPATH
   "Profiling data file to use when compiling in order to improve runtime performance.")
 
-# Find python before including config-ix, since it needs to be able to search
-# for python modules.
 if(LLVM_INCLUDE_TESTS)
   # Lit test suite requires at least python 3.6
   set(LLVM_MINIMUM_PYTHON_VERSION 3.6)
 else()
   # FIXME: it is unknown if this is the actual minimum bound
   set(LLVM_MINIMUM_PYTHON_VERSION 3.0)
 endif()
 
+# Find python before including config-ix, since it needs to be able to search
+# for python modules.
 find_package(Python3 ${LLVM_MINIMUM_PYTHON_VERSION} REQUIRED
     COMPONENTS Interpreter)
 
 # All options referred to from HandleLLVMOptions have to be specified
 # BEFORE this include, otherwise options will not be correctly set on
 # first cmake run
 include(config-ix)