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From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/100885] [12 Regression] ICE: in extract_constrain_insn,
 at recog.c:2671: insn does not satisfy its constraints:
 {sse4_1_zero_extendv8qiv8hi2}
Date: Thu, 03 Jun 2021 07:14:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100885

--- Comment #4 from Hongtao.liu <crazylht at gmail dot com> ---

> Need to adjust the third constraint from (v, vm, C, n) to (Yw, Ywm, C, n)

Also for those extend instructions which need AVX512VL is needed for
xmm16-xmm32.=