[Bug ada/125984] [15/16/17 regression] wrong code at -O1 for up-level reference

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125984

--- Comment #4 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Passing -fno-ipa-modref is a workaround.