[Bug target/96849] [11 Regression] ICE: in extract_insn, at recog.c:2294 (error: unrecognizable insn) since r11-2623

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96849

--- Comment #4 from Hongtao.liu <crazylht at gmail dot com> ---
Fixed in GCC11 by

https://gcc.gnu.org/g:1aa71af09350b9ff4d2fad88a440b682545682ec

commit r11-2947-g1aa71af09350b9ff4d2fad88a440b682545682ec
Author: liuhongt <hongtao.liu@intel.com>
Date:   Tue Aug 11 11:05:40 2020 +0800

    Refine expander vec_unpacku_float_hi_v16si/vec_unpacku_float_lo_v16si

    gcc/
            PR target/96551
            * config/i386/sse.md (vec_unpacku_float_hi_v16si): For vector
            compare to integer mask, don't use gen_rtx_LT, use
            ix86_expand_mask_vec_cmp instead.
            (vec_unpacku_float_hi_v16si): Ditto.

    gcc/testsuite
            * gcc.target/i386/avx512f-pr96551-1.c: New test.
            * gcc.target/i386/avx512f-pr96551-2.c: New test.

Also backport to GCC10.