Fix Clang Error:
    clang: error: unknown argument: '-fgraphite'
    clang: error: unknown argument: '-floop-flatten'
    clang: error: unknown argument: '-floop-parallelize-all'
    clang: error: unknown argument: '-ftree-loop-linear'
    clang: error: unknown argument: '-floop-interchange'
    clang: error: unknown argument: '-floop-strip-mine'
    clang: error: unknown argument: '-floop-block'