Re: [PATCH] c-family: Check backend for argument alignment on stack

[Jason Merrill]

On 6/28/25 7:00 AM, H.J. Lu wrote:

Since a backend may ignore user type alignment for arguments passed on
stack, check backend for argument alignment on stack when evaluating
__alignof.

I assume that's reflected in DECL_ALIGN, so could we just add PARM_DECL to

  else if (VAR_OR_FUNCTION_DECL_P (expr))
    t = size_int (DECL_ALIGN_UNIT (expr));

?

Jason