Re: automatic 16-byte alignment for structs

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To: Shmuel Hanoch <shmuel@xxxxxxxxxxxxxxxxxx>
Subject: Re: automatic 16-byte alignment for structs
From: Segher Boessenkool <segher@xxxxxxxxxxxxxxxxxxx>
Date: Sun, 5 Mar 2017 18:20:46 -0600
Cc: gcc-help@xxxxxxxxxxx
In-reply-to: <CAMmv=H8viefo1G+hSvkTr_K_S03qZGkB4MN6VrhsZ8=RSziaUg@mail.gmail.com>
References: <CAMmv=H8viefo1G+hSvkTr_K_S03qZGkB4MN6VrhsZ8=RSziaUg@mail.gmail.com>
User-agent: Mutt/1.4.2.3i

On Sun, Mar 05, 2017 at 08:02:26PM +0200, Shmuel Hanoch wrote:
> What is the source of this special behavior?

It seems to be a bug in the x86 backend (a mix-up of bits and bytes).
I have a patch; will send it tomorrow, I'll put you on Cc:.

Thanks for the report,


Segher

References:
- automatic 16-byte alignment for structs
  - From: Shmuel Hanoch

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