[Bug tree-optimization/105558] simple 8-bit integer calculation fails with -O3 / march=core-avx2 on some gfortran 8/9/10 versions

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105558

--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #6)
> Would be interesting to find what patch broke this and what patch fixed the
> -mtune=generic case.

It is not easy bisecting with old compilers - compilation issues keep
coming up on more modern systems, and sometimes newer compilers do
not compile older compilers...