On Tue, 13 Jan 2026 17:00:31 -0700, Nathan Chancellor wrote:
> An (admittedly problematic) optimization change in LLVM 20 [1] turns
> known division by zero into the equivalent of __builtin_unreachable(),
> which invokes undefined behavior if it is encountered in a control flow
> graph, destroying code generation. When compile testing for x86_64,
> objtool flags an instance of this optimization triggering in
> msm_dp_ctrl_config_msa(), inlined into msm_dp_ctrl_on_stream():
>
> [...]
Applied to msm-next, thanks!
[1/1] drm/msm/dp: Avoid division by zero in msm_dp_ctrl_config_msa()
https://gitlab.freedesktop.org/lumag/msm/-/commit/f185076da44c
Best regards,
--
With best wishes
Dmitry
