* include/x86_64-signal.h (HANDLE_DIVIDE_OVERFLOW): New.
        (SIGNAL_HANDLER): Mark arg as unused.
        * configure.host (x86_64-* DIVIDESPEC): Use
        fno-use-divide-subroutine.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@112827 138bc75d-0d04-0410-961f-82ee72b054a4