From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <12eeeb06c64e4553fb6eb85500c8f623@vitanuova.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] how to avoid a memset() optimization
From: C H Forsyth <forsyth@vitanuova.com>
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Date: Wed, 13 Nov 2002 10:43:40 +0000
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>>No, it mens "compiler, the access must really be
>>performed".  It is the programmer who decides whether
>>that is a requirement, and it could be for numerous
>>reasons, such as to assist in debugging, because the
"location" is a portal to an external device register,
>>because the object is shared among threads, etc.  In
>>this particular case it would be because the programmer
>>really wants the memory overwrite to occur regardless
>>of whether it is used any further.

so, in the case of memset applied to such a thing,
are those accesses that `must really be performed'
byte accesses, word accesses, quadword?