[Bug tree-optimization/123602] [13/14/15/16 Regression] ICE: SSA corruption during RTL pass: expand with -O2 and -std=c++20 flag since r8-18

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123602

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
This is a latent issue, I have a patch.