PR middle-end/30667

        * combine.c (try_combine): Do not substitute source operand
        with constants wider than 2 * HOST_BITS_PER_WIDE_INT.

testsuite/ChangeLog:

        PR middle-end/30667
        * gfortran.dg/pr30667.f: New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121555 138bc75d-0d04-0410-961f-82ee72b054a4