re PR middle-end/60281 (Address Sanitizer triggers alignment fault in ARM machines)
PR middle-end/60281
* asan.c (asan_emit_stack_protection): Force the base to align to
appropriate bits if STRICT_ALIGNMENT. Set shadow_mem align to
appropriate bits if STRICT_ALIGNMENT.
* cfgexpand.c (expand_stack_vars): Set base_align appropriately
when asan is on.
(expand_used_vars): Leave a space in the stack frame for alignment
if STRICT_ALIGNMENT.