https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80121
Bug ID: 80121
Summary: Memory leak when allocating a component derived type
in a recursive subroutine (gfortran)
Product: gcc
Version: 6.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: andrew at fluidgravity dot co.uk
Target Milestone: ---
Created attachment 41006
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41006&action=edit
Fortran code with memory leak when compiled with gfortran
I'm getting a memory leak when I compile and run the attached code with
gfortran.
No such problem occurs when I use the Intel or Portland compilers.
> gfortran -g -O0 -std=f2008 code.f90
> valgrind --leak-check=yes ./a.out
...
==32283== HEAP SUMMARY:
==32283== in use at exit: 8 bytes in 1 blocks
==32283== total heap usage: 28 allocs, 27 frees, 13,784 bytes allocated
==32283==
==32283== 8 bytes in 1 blocks are definitely lost in loss record 1 of 1
==32283== at 0x4C29160: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==32283== by 0x400C66: __m1_MOD_s1 (code.f90:14)
==32283== by 0x400E0F: __m1_MOD_s1 (code.f90:18)
==32283== by 0x400F1F: MAIN__ (code.f90:26)
==32283== by 0x400F56: main (code.f90:23)
==32283==
==32283== LEAK SUMMARY:
==32283== definitely lost: 8 bytes in 1 blocks
==32283== indirectly lost: 0 bytes in 0 blocks
==32283== possibly lost: 0 bytes in 0 blocks
==32283== still reachable: 0 bytes in 0 blocks
==32283== suppressed: 0 bytes in 0 blocks
