[Bug fortran/37199] New: array assignment from function writes out of bounds

["salam at lpthe dot jussieu dot fr" <gcc-bugzilla at gcc dot gnu dot org>]

In the latest gfortran snapshot4.4.0 20080821 (but also in 4.2.3 and 4.3.0) on
a 32-bit machine, the attached piece of code crashes on execution (e.g.
compiled with -g -Wall), with error

  *** glibc detected *** a.out: free(): invalid pointer: 0x0805fb48 ***

Running with valgrind indicates

==16436== Invalid write of size 8
==16436==    at 0x8048944: MAIN__ (bounds_issue.f90:9)
==16436==    by 0x8048B36: main (in /...bounds_...

This suggests the array assignment is writing out of the bounds of the array.

The code executes without issue on all other f95 compilers tried out. This bug
is a showstopper in using gfortran with the hoppet package,
http://projects.hepforge.org/hoppet/

-------------------------------------------------------
gfortran -v

Using built-in specs.
Target: i586-pc-linux-gnu
Configured with: /home/fx/gfortran_nightbuild/trunk/configure
--prefix=/home/fx/gfortran_nightbuild/irun-20080821
--enable-languages=c,fortran --build=i586-pc-linux-gnu
--enable-checking=release --with-gmp=/home/fx/gfortran_nightbuild/software
Thread model: posix
gcc version 4.4.0 20080821 (experimental) [trunk revision 139368] (GCC)


-- 
           Summary: array assignment from function writes out of bounds
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: salam at lpthe dot jussieu dot fr
  GCC host triplet: Linux bison 2.6.24-19-generic #1 SMP Fri Jul 11 23:41:49
                    UTC 200


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37199