[Bug middle-end/90577] [9/10 Regression] FAIL: gfortran.dg/lrshift_1.f90 with -O(2|3) and -flto

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90577

--- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Fixed on trunk for the invalid testcase.  Can someone please check/confirm
> that it solves the LTO issues?

Confirmed. It would be nice to understand why revision r268992 exposed the
problem.

It would be nice to have a runtime diagnostic.