https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82996
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Blocks| |37336
--- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> I think Dominique swapped 2 and 3.
Indeed!
If I compile the tests in comment 0 or 1 with '-fsanitize=address,undefined', I
get at run time an error of the kind:
pr82996.f90:17: runtime error: member access within misaligned address
0x1000e3e7620c for type 'struct foo', which requires 8 byte alignment
0x1000e47d2bec: note: pointer points here
ASAN:DEADLYSIGNAL
=================================================================
==3427==ERROR: AddressSanitizer: SEGV on unknown address 0x12001c8fa57d (pc
0x00010796507b bp 0x7ffee84cd9c0 sp 0x7ffee84cd150 T0)
#0 0x10796507a in wrap_write.part.20
(/opt/gcc/gcc7wr/lib/libasan.4.dylib+0x2507a)
#1 0x109224d2e in __sanitizer::IsAccessibleMemoryRange(unsigned long,
unsigned long) (/opt/gcc/gcc7wr/lib/libubsan.0.dylib+0x17d2e)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/opt/gcc/gcc7wr/lib/libasan.4.dylib+0x2507a)
in wrap_write.part.20
==3427==ABORTING
Program received signal SIGABRT: Process abort signal.
If I remove 'elemental' for 'subroutine foo_destroy', the segfault is gone.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37336
[Bug 37336] [F03] Finish derived-type finalization
