Re: Is it possible that gcc reorders a series of read/write operations?

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To: "Pan ruochen" <panruochen@xxxxxxxxx>
Subject: Re: Is it possible that gcc reorders a series of read/write operations?
From: me22 <me22.ca@xxxxxxxxx>
Date: Tue, 2 Sep 2008 22:45:25 -0400
Cc: gcc-help@xxxxxxxxxxx
In-reply-to: <af0faace0809021922u51ea578v3103c483bc90bcd2@xxxxxxxxxxxxxx>
References: <af0faace0809021922u51ea578v3103c483bc90bcd2@xxxxxxxxxxxxxx>

On Tue, Sep 2, 2008 at 22:22, Pan ruochen <panruochen@xxxxxxxxx> wrote:
>
> I wonder if there is any possibility that gcc reorders the read/write
> operations in a way it thinks more optimal, which may be a disaster to
> the hardware driver.
>

I suspect that the volatile will prevent such things.

But just guessing,
~ Scott

References:
- Is it possible that gcc reorders a series of read/write operations?
  - From: Pan ruochen

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