[Bug target/115397] [15 Regression] ICE 'during RTL pass: split1' on numpy-1.26.4 i686-linux '-fPIC -mavx512f'

[slyfox at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115397

--- Comment #2 from Sergei Trofimovich <slyfox at gcc dot gnu.org> ---
Bisect arrived at r15-1100-gec985bc97a0157, looks relevant:

commit ec985bc97a01577bca8307f986caba7ba7633cde
Author: Roger Sayle <ro...@nextmovesoftware.com>
Date:   Fri Jun 7 13:57:23 2024 +0100

    i386: Improve handling of ternlog instructions in i386/sse.md

    This patch improves the way that the x86 backend recognizes and
    expands AVX512's bitwise ternary logic (vpternlog) instructions.

    ...