From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] Missing EXPORT_SYMBOL memset
Date: Sat, 13 Apr 2002 02:00:32 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590701905447@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590701905441@msgid-missing>
>>>>> On Sat, 13 Apr 2002 03:38:40 +0200, Andreas Schwab <schwab@suse.de> said:
Andreas> There is no way for gcc to see the memset macro when it
Andreas> generates the call to the memset function. And there isn't
Andreas> much lost anyway, since the macro is just there to call
Andreas> __bzero vs. __memset_generic (aka memset), the difference
Andreas> is just one parameter more or less.
Just fyi: the reason I split it up is because for ia64 its worthwhile
to special-case the memset-to-zero case (think stf.spill). That code
isn't there yet, but I wanted to get things set up for it. Of course,
memset can also check for this case dynamically, but from a logical
perspective, I like it better to make the bzero case explicit (and
save a taken branch in those cases where the compiler macro detects
memset-to-zero).
--david
next prev parent reply other threads:[~2002-04-13 2:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-12 15:05 [Linux-ia64] Missing EXPORT_SYMBOL memset Andreas Schwab
2002-04-13 1:28 ` Keith Owens
2002-04-13 1:38 ` Andreas Schwab
2002-04-13 1:55 ` Keith Owens
2002-04-13 1:57 ` David Mosberger
2002-04-13 1:57 ` Andreas Schwab
2002-04-13 2:00 ` David Mosberger [this message]
2002-04-13 2:10 ` David Mosberger
2002-04-13 2:17 ` Keith Owens
2002-04-13 2:21 ` David Mosberger
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