[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 #7 from Dan Horák <dan at danny dot cz> ---
FWIW if the C implementation of dgemv_kernel_4x4() [1] is used instead of the
assembly one from dgemv_n_microk_power8.c, then the issue goes away.

[1]
https://github.com/OpenMathLib/OpenBLAS/blob/develop/kernel/power/dgemv_n.c#L52