From: "H.J. Lu" <hjl.tools@gmail.com>
To: Xinliang David Li <davidxl@google.com>
Cc: Andi Kleen <andi@firstfloor.org>, GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: define MMX/SSE intrinsics without requiring cmdline isa flags
Date: Thu, 19 Aug 2010 16:08:00 -0000 [thread overview]
Message-ID: <AANLkTikqBKFe0WhjT-e73LSKhDwCw3dwpXx-Fb17jqmk@mail.gmail.com> (raw)
In-Reply-To: <AANLkTim9LvcTx5Vg7GR6fbxe2XZ1u--fDSd2KdY2ujWa@mail.gmail.com>
On Thu, Aug 19, 2010 at 8:42 AM, Xinliang David Li <davidxl@google.com> wrote:
> Good to know that I am not alone.
>
> I need comments on the patch I proposed -- what are the potential
> problems (other than slight increase in memory consumption which has
> no impact on compile time)?
>
The whole target attribute is very fragile:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37565
There is another issue with intrinsics:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39840
I don't think we should add more kludges to the current
scheme. I suggest you open a bug with your concern. We
should take a look at all related issues to address them
properly. I hope the driver changes Joseph is making can
help this.
--
H.J.
next prev parent reply other threads:[~2010-08-19 16:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-19 0:22 Xinliang David Li
2010-08-19 14:04 ` Andi Kleen
2010-08-19 15:49 ` Xinliang David Li
2010-08-19 16:08 ` H.J. Lu [this message]
2010-08-19 16:33 ` Andi Kleen
2010-08-19 17:58 ` Xinliang David Li
2010-08-19 18:16 ` H.J. Lu
2010-08-19 18:52 ` Richard Henderson
2010-08-19 18:59 ` Xinliang David Li
2010-08-19 19:41 ` Richard Henderson
2010-08-22 9:46 ` Xinliang David Li
2010-08-22 9:55 ` Xinliang David Li
2010-08-19 18:21 ` Daniel Jacobowitz
2010-08-19 19:33 ` Xinliang David Li
2010-08-19 22:00 ` Michael Meissner
2010-08-19 22:02 ` Joseph S. Myers
2010-08-19 22:14 ` Michael Meissner
2010-08-22 9:50 ` Xinliang David Li
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