[Bug fortran/62245] New: gfortran miscompiles int() on mips

["jtaylor.debian at googlemail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62245

            Bug ID: 62245
           Summary: gfortran miscompiles int() on mips
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jtaylor.debian at googlemail dot com

gfortran miscompiles int() for negative overflows leading to a build
timeout of python-scipy, see #756905
below a testcase, according to
https://gcc.gnu.org/onlinedocs/gfortran/INT.html the result should be
-2147483648

(sid_mips-dchroot)jtaylor@gabrielli:~$ apt-cache  policy gfortran
gfortran:
  Installed: 4:4.9.1-1
  Candidate: 4:4.9.1-1
  Version table:
 *** 4:4.9.1-1 0
        500 http://mirror-ubc.debian.org/debian/ sid/main mips Packages
        100 /var/lib/dpkg/status
(sid_mips-dchroot)jtaylor@gabrielli:~$ cat test.f90
      program add
      implicit none
      real a,b,s
      read *, a
      print *, ' is ' , int(a)
      stop
      end
(sid_mips-dchroot)jtaylor@gabrielli:~$ gfortran test.f90
(sid_mips-dchroot)jtaylor@gabrielli:~$ ./a.out
-1e99
  is   2147483647
Note: The following floating-point exceptions are signalling:
IEEE_INVALID_FLAG IEEE_OVERFLOW_FLAG