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Date:   Fri, 30 Sep 2022 09:21:44 -0700 (PDT)
From:   Hugh Dickins <hughd@google.com>
To:     David Laight <David.Laight@aculab.com>
cc:     Hugh Dickins <hughd@google.com>, Vlastimil Babka <vbabka@suse.cz>,
        Joel Fernandes <joel@joelfernandes.org>,
        Hyeonggon Yoo <42.hyeyoo@gmail.com>,
        Matthew Wilcox <willy@infradead.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: RE: amusing SLUB compaction bug when CC_OPTIMIZE_FOR_SIZE
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On Fri, 30 Sep 2022, David Laight wrote:
> > > > Regarding "conflicting" alignment requests: yes, I agree with you,
> > > > it would have to be a toolchain bug if when asked to align 2 and to
> > > > align 4, it chose not to align 4.
> 
> See https://godbolt.org/z/3nGsTaf5e
> the align() directive takes precedence.
> 
> Here you only want to ensure the alignment is at least 4.

Sorry, I don't understand the point you are making,
nor how to deduce it from the link which you give:
I'll leave it to those who understand better.

Hugh