[Bug fortran/57922] New: Memory leak with allocatable polymorphics

[townsend at astro dot wisc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57922

            Bug ID: 57922
           Summary: Memory leak with allocatable polymorphics
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: townsend at astro dot wisc.edu

Created attachment 30520
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30520&action=edit
Example program

I'm experiencing a problem with:

Using built-in specs.
COLLECT_GCC=/Applications/madsdk/bin/gfortran.exec
COLLECT_LTO_WRAPPER=/Applications/madsdk/libexec/gcc/x86_64-apple-darwin11.4.2/4.9.0/lto-wrapper
Target: x86_64-apple-darwin11.4.2
Configured with: ./configure CC='gcc -D_FORTIFY_SOURCE=0'
--build=x86_64-apple-darwin11.4.2 --prefix=/Applications/madsdk
--with-gmp=/Applications/madsdk --with-mpfr=/Applications/madsdk
--with-mpc=/Applications/madsdk --enable-languages=c,c++,fortran
--disable-multilib
Thread model: posix
gcc version 4.9.0 20130404 (experimental) (GCC) 

The attached example program demonstrates the problem. When f is deallocated,
it seems that f%x is not getting deallocated, causing the memory footprint of
the program (as reported by the ps syscall) to grow without bound.