[Bug target/127459] [14/15/16/17 Regression] x86: AVX512VL instruction (vinserti32x4, EVEX.256) emitted with only -mavx512f

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127459

--- Comment #3 from Haochen Jiang <haochen.jiang at intel dot com> ---
Proposed patch:

https://gcc.gnu.org/pipermail/gcc-patches/2026-October/736320.html