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From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/111062] ICE: in final_scan_insn_1, at final.cc:2808
 could not split insn {*andndi_1} with -O -mavx10.1-256 -mavx512bw
 -mno-avx512f
Date: Mon, 21 Aug 2023 01:03:48 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111062

--- Comment #1 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Zdenek Sojka from comment #0)
> Created attachment 55755 [details]
> reduced testcase
>=20
> Compiler output:
> $ x86_64-pc-linux-gnu-gcc -O -mavx10.1-256 -mavx512bw -mno-avx512f testca=
se.c
> cc1: warning:
> '-mno-avx512{f,vl,bw,dq,cd,bf16,fp16,vbmi,vbmi2,vnni,ifma,bitalg,vpopcntd=
q}'
> are ignored with '-mavx10.1' and above
Warning message can be a little confusing.
A better formulation might be: with avx10.1 enabled, -mno-avx512f does not
fully disable AVX512-related instructions.=