https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71918
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org,
| |kyukhin at gcc dot gnu.org,
| |uros at gcc dot gnu.org
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note that with GMP it isn't always just misconfigured GMP, see
https://bugzilla.redhat.com/show_bug.cgi?id=1331943
seems some Skylake Pentium/Celeron chips report in cpuid BMI/BMI2 support which
they don't have.
So it is a question if -march=haswell or -march=skylake in GCC should include
BMI/BMI2 or not (i.e. if users should treat their Haswell/Skylake
Pentium/Celeron just as SandyBridge or IvyBridge, or if we need skylake vs.
skylake-bmi etc.).
