[Bug rtl-optimization/79541] lra reads uninitialized memory (with invalid input)

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79541

--- Comment #1 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Thank you, Bernd.  I've reproduced the bug and started to work on it.