• Andreas Marek's avatar
    Additional configure check for gcc SSE intrinsics · 896388e9
    Andreas Marek authored
    It turned out that if a CPU supports SSE the already existing
    test for SSE assembly instructions always passes.
    However, the compilation of gcc SSE intrinic instructions might
    nevertheless fail if gcc is not called with one of the options
    "-msse3", "-msse4" , "-msse4.1", "-msse4.2", "-mavx", or "-mavx2"!
    
    Obviously gcc does still not consider SSE as a standard on X86_64
    Intel CPUs.
    
    An additional configure test has been introduced, which test for
    gcc intrinsic sse instructions. If this test fails, the corresponding
    kernels are switched off.
    896388e9
configure.ac 28.7 KB