[Bug middle-end/69454] [6 Regression] ix86_expand_prologue internal compiler error: Segmentation fault

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69454

--- Comment #20 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Ilya Enkovich from comment #19)
> (In reply to H.J. Lu from comment #17)
> > Do you have a testcase to show that you need to realign stack for STV?
> 
> Reproducer for this tracker is such test, right?

Not really.  We only ask for 128-bit aligned stack only if we have 128-bit
aligned variable on stack.  Please do

# git grep stack_alignment_needed

to see how stack alignment is tracked.