libgcc2.c: Include auto-host.h.

libgcc2.c: Include auto-host.h.

        * libgcc2.c: Include auto-host.h.
        (ATTRIBUTE_HIDDEN): New.
        (__clz_tab): Don't declare here for clz and ctz.
        (__clzsi2, __clzdi2): Use count_leading_zeros.
        (__ctzsi2, __ctzdi2): Use count_trailing_zeros.
        (__popcount_tab): Mark ATTRIBUTE_HIDDEN.
        (__paritysi2, __paritydi2): Use shifts instead of __popcount_tab.
        * longlong.h (__clz_tab): Mark ATTRIBUTE_HIDDEN.

From-SVN: r62256