[Bug fortran/59589] Memory leak when deallocating polymorphic

[townsend at astro dot wisc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59589

--- Comment #3 from Rich Townsend <townsend at astro dot wisc.edu> ---
(In reply to Dominique d'Humieres from comment #2)
> Works for me on OS X for 4.8.2 or trunk. What command are you using?

townsend@talos ~ $ gfortran -v
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 --disable-nls --disable-libsanitizer
Thread model: posix
gcc version 4.9.0 20131223 (experimental) (GCC) 

townsend@talos ~ $ gfortran -o test_leak test_leak.f90 

townsend@talos ~ $ ./test_leak 
./test_leak  39688
./test_leak  78764
./test_leak 117828
./test_leak 156908
./test_leak 195972
./test_leak 235036
./test_leak 274100
./test_leak 313164
./test_leak 352228
./test_leak 391292

...so, the memory usage grows on each iteration of the loop; this suggests a
leak.