[Bug fortran/33295] New: ICE in fold_const.c (fold_convert) when reordering USE statements

["jaydub66 at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

The following code produces the error

"internal compiler error: in fold_convert, at fold-const.c:2626"

when compiled with GCC trunk rev. 128037:


module A

  type A_type
    real comp
  end type

end module A


module B

contains

  function initA()
    use A
    implicit none
    type(A_type):: initA
    initA%comp=1.0
  end function

end module B


program C

use B
use A

implicit none

type(A_type):: A_var
A_var = initA()

end program C


The crucial part here are the USE statements in program C. The error only pops
up when they appear as listed above. Exchanging them to

use A
use B

makes the error vanish. The error is also killed by

A_var = initA()

It happens for GCC 4.3.0 (trunk) as well as 4.1.3 and 4.2.1. The target system
is i686-pc-linux-gnu.


-- 
           Summary: ICE in fold_const.c (fold_convert) when reordering USE
                    statements
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jaydub66 at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33295