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

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To: "David Daney" <ddaney@xxxxxxxxxx>
Subject: Re: Is it possible that gcc reorders a series of read/write operations?
From: "Pan ruochen" <panruochen@xxxxxxxxx>
Date: Fri, 5 Sep 2008 10:29:12 +0800
Cc: gcc-help@xxxxxxxxxxx
In-reply-to: <48C00753.2020903@xxxxxxxxxx>
References: <af0faace0809021922u51ea578v3103c483bc90bcd2@xxxxxxxxxxxxxx> <48BEB906.8020908@xxxxxxxxxx> <af0faace0809031811t136113bfs24c16ca49f8178e6@xxxxxxxxxxxxxx> <48C00753.2020903@xxxxxxxxxx>

> The instructions are executed in order.  The problem is that the write
> operations in IO space are sometimes reordered.  On this board, flushing the
> write-back buffer after IO writes is required.
>
> David Daney
>

Here, the write-back buffer means the instruction cache of MIPS?


PRC

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