[Bug rtl-optimization/66626] [4.9/5/6 Regression] gcc.dg/torture/stackalign/non-local-goto-5.c segfaults w/ -mregparm=3

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66626

--- Comment #16 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to H.J. Lu from comment #13)

> These simply won't work to together.  Since we must keep LRA, we
> should remove ix86_static_chain_on_stack.

... or LRA notes that static chain reg has just been loaded from stack (insn
32) and can be reused in all subsequent instructions (insn 14) and (insn 17).