Recent (middle-end?) regressions in the Fortran testsuite

[François-Xavier Coudert]

The last few days have seen a regression in the Fortran testsuite on
i386-linux and x86_64-linux (filed as PR33391). The following code
gives wrong results at -O2 while it works at -O1:

  program test
    integer(kind=1) :: i

    do i = -128, 127
    end do
    if (i /= -128) call abort
  end program test


Also of interest, gfortran.dg/vect/vect-{1,2,4}.f90 have started
failing on ia64 and i386 (but not x86_64 and i686, apparently).

FX