[Bug target/126676] [17 Regression] ICE with XFmode under -mavx10.2 -mapxf

Mon, 10 Aug 2026 23:08:01 -0700 

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126676

--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-16 branch has been updated by Hu <[email protected]>:

https://gcc.gnu.org/g:ff20c357b3f62d4ffa76a74ce21fc49b640d61e6

commit r16-9523-gff20c357b3f62d4ffa76a74ce21fc49b640d61e6
Author: Hu, Lin1 <[email protected]>
Date:   Fri Aug 7 16:07:45 2026 +0800

    i386: Don't use VCOMX for XFmode compares [PR126676]

    gcc/ChangeLog:

            PR target/126676
            * config/i386/i386-expand.cc (ix86_expand_fp_compare): Only use
            UNSPEC_OPTCOMX for the modes VCOMX exists for.

    gcc/testsuite/ChangeLog:

            PR target/126676
            * gcc.target/i386/pr126676.c: New test.

    (cherry picked from commit 121691a8f8b29fd0cc8bf538b5a24424607a59f6)

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