https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79876
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |7.0
--- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #1)
> Revisions r242462 and r242518 are within the range.
>
> The failure triggers also if the tests are compiled with -O0 or with
> -fno-frontend-optimize.
A few questions:
- Still happening after r245839 (which fixed a potential race condition)?
- What / where is the illegal instruction happening? Is it in
matmul_*_avx, matmul_*_avx2, ...?
- What CPU are you running?
- If you print __cpu_model.__cpu_vendor and __cpu_model.__cpu_features[0]
from a debugger, what is the output?
- What is the stack size for each thread? Are you maybe running
into a stack limitation?
