DATA_ALIGNMENT vs. DECL_USER_ALIGNMENT

[Richard Henderson]

On Thu, Apr 17, 2003 at 09:20:24PM -0400, Richard Kenner wrote:
> No, it's being overloaded for two *other* meanings:
> 
> (1) The user really did set the alignment of the object.
> (2) The user really did set the alignment of the object's *type*.

I see the two as equivalent.

> Yes, but there's a fundamental ambiguity here.  If the user says he
> wants an object aligned at a 4-byte boundary, is it an error to align
> it to a page boundary?

If aligning to a page boundary has the effect of inserting
padding that a 4-byte boundary wouldn't, yes.  I.e. the compiler
*shouldn't* emit ".p2align 13" in this situation.


r~