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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/116348] [15 regression] ICE when building
 gavl-1.4.0 with -O3 -march=znver4
Date: Mon, 12 Aug 2024 18:54:12 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D116348

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=3D116142

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Sam James from comment #1)
> Reduced:
> ```
> int *a;
> int b;
> long c, d;
> void(e)(int f) {
>   for (; f; f++) {
>     d +=3D (long)a[f] * b;
>     c +=3D (long)a[f] * 3;
>   }
> }
> ```

This makes it more likely it is the same as PR 116314 even. This is a widen=
ding
dot product summation going on.=