https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69454
--- Comment #18 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to H.J. Lu from comment #17)
>
> Do you have a testcase to show that you need to realign stack for STV?
You can keep track alignment requirement in STV and replace
/* Conversion means we may have 128bit register spills/fills
which require aligned stack. */
if (converted_insns)
{
if (crtl->stack_alignment_needed < 128)
crtl->stack_alignment_needed = 128;
if (crtl->stack_alignment_estimated < 128)
crtl->stack_alignment_estimated = 128;
}
with an assert.