[Bug target/112435] [14 regression] GCC generates assembly which gas rejects with AVX when building ncnn (Error: unsupported instruction `vblendps') since r14-96-gc2dac2e5fbbcdd

[haochen.jiang at intel dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112435

--- Comment #12 from Haochen Jiang <haochen.jiang at intel dot com> ---
Seems like we should prevent the optimization in that commit to register
x/ymm16+.