https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120839
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[16 Regression] ICE on |[16 Regression] Incorrect
|x86_64-linux-gnu: in |alignment for arguments on
|ix86_finalize_stack_frame_f |stack
|lags, at |
|config/i386/i386.cc:8738 at |
|-O1 and above with aligned |
|on struct |
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
set_mem_attrs has
if (!MEM_ATTRS (mem)
|| !mem_attrs_eq_p (attrs, MEM_ATTRS (mem)))
{
MEM_ATTRS (mem) = ggc_alloc<mem_attrs> ();
memcpy (MEM_ATTRS (mem), attrs, sizeof (mem_attrs));
}
But a backend may ignore user type alignment for arguments passed on stack.
As the result, arguments passed on stack may have wrong MEM_ALIGN.
