[Bug fortran/47659] -Wconversion[-extra] should emit warning for constant expressions

[thenlich at users dot sourceforge.net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47659

--- Comment #7 from Thomas Henlich <thenlich at users dot sourceforge.net> 2011-09-05 07:55:13 UTC ---
Would it be feasible to generate a warning for line 3 of the following:

    real(8) :: a, b
    a = 1.4d0
    b = a / 1.3