[Bug tree-optimization/121372] [15/16 regression] miscompilation in OpenBLAS since r15-571-g1e0ae1f52741f7

[dan at danny dot cz via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121372

--- Comment #2 from Dan Horák <dan at danny dot cz> ---
It will likely take some time to reduce the codebase to get something useful.
But it seems that kernel/power/dgemv_n.c alone is exposing the bug and also
appending "-fno-ipa-modref" fixes the issue.