https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67310
--- Comment #3 from jol_indien at yahoo dot fr --- Here are two new patches, one for gcc 4.8.x versions (tested with 4.8.4 & 4.8.5), one for 4.9+ versions (tested with 4.9.3). This patch is safer, support of VIA Nano based on CPU vendor name instead of "has_longmode" in the previous one. The 4.9+ patch also applies for gcc 5.x; unfortunately, for any reason, I cannot get the "host_detect_local_cpu" function being called with gcc 5.2 as if -march=native, -mcpu=native and -mtune=native options were ignored by the compiler.
