if -mavx is used also SSE and scalar impls will fail on non-AVX CPUs
if -mavx is used also SSE and scalar impls will fail on non-AVX CPUs

VcDevel/Vc,VcDevel/Vc,chr-engwer/Vc,VcDevel/Vc,chr-engwer/Vc,VcDevel/Vc,chr-engwer/Vc