[Bug target/70858] __builtin_ia32_bextr_u64 ICE with '-m32 -march=core-avx2'

[steven at uplinklabs dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70858

--- Comment #3 from Steven Noonan <steven at uplinklabs dot net> ---
Cool. I'll let the project maintainer know to not use the __builtin_* variants.
_bextr_u32 and _bextr_u64 look much more friendly, too.