[Bug rtl-optimization/68730] [6 Regression] wrong code at -O3 on x86_64-linux-gnu (in 32-bit mode)

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68730

--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
The dominator ICE started with r228231.