[Bug fortran/82018] New: [6/7/8 Regression] missing warnings with -Wconversion

[janus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82018

            Bug ID: 82018
           Summary: [6/7/8 Regression] missing warnings with -Wconversion
           Product: gcc
           Version: 6.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: janus at gcc dot gnu.org
  Target Milestone: ---

Simple test case:

implicit none
integer(kind=4) :: i4
integer(kind=8) :: i8
i8 = 2.0
i4 = i8
end



gfortran 5.4.1 with -Wall shows two warnings here:

Wconversion.f90:5:5:

 i8 = 2.0
     1
Warning: Possible change of value in conversion from REAL(4) to INTEGER(8) at
(1) [-Wconversion]
Wconversion.f90:6:5:

 i4 = i8
     1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4)
at (1) [-Wconversion]


Both are correct. Unfortunately the first one has gone missing with version 6
and up (I tried 6.3 and 7.1).