[PATCH, GCC 4.7] Backport fix for PR tree-optimization/53708

[Peter Bergner]

On Tue, 2012-10-30 at 20:37 +0100, Jakub Jelinek wrote:
> On Tue, Oct 30, 2012 at 02:03:44PM -0500, Peter Bergner wrote:
> > Ok, then I'll bootstrap and regtest your suggested change while we
> > wait for richi to comment.  I'm fine with whatever you and richi
> > decide is best.  The ObjC guys should probably test it though too.
> > 
> > I assume you think we should change the current trunk code as well?
> 
> Well, I haven't looked at the ObjC failures (guess they are darwin only
> anyway), so have no idea whether those set section name or not.
> So, if my proposed test instead of the trunk one doesn't work for darwin,
> perhaps it could be DECL_PRESERVED_P (decl) || (DECL_SECTION_NAME (decl) &&
> !...).  I think DECL_USER_ALIGN test is undesirable for that though, it is
> just fine to increase alignment of anything, after all, it is still aligned
> properly then.

I can confirm it bootstraps and regtests without any errors...and it
fixes my problem.

Peter