[Bug fortran/123282] [OpenACC/Fortran] Illegal memory access with derived type component in repeated alloc/dealloc cycle (order-dependent)
albert at tugraz dot at via Gcc-bugs <[email protected]>
| Newsgroups | gmane.comp.gcc.bugs |
|---|---|
| Message-ID | <[email protected]/bugzilla/> |
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123282
Christopher Albert <albert at tugraz dot at> changed:
What |Removed |Added
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CC| |jvdelisle at gcc dot gnu.org
--- Comment #7 from Christopher Albert <albert at tugraz dot at> ---
Open for review, comments welcome:
https://github.com/lazy-fortran/gcc/pull/33
This carries attachment 63146 forward. The duplicate-key compensation
in goacc_enter_data_internal is narrowed to GOMP_MAP_TO_PSET groups:
each descriptor key is counted once for a new TO_PSET group and the
extra refcount added for its pointer entry is cancelled, so repeated
alloc/enter/exit/deallocate cycles no longer leave a stale mapping.
Includes a runtime test with reallocation cycles. The reproducer fails
before and passes after on a real NVPTX device; check-fortran and the
libgomp suites are clean.