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Re: [Qemu-devel] [PATCH for-1.5 1/2] qom: aggressively optimize qom cast

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH for-1.5 1/2] qom: aggressively optimize qom casting
Date: Mon, 13 May 2013 23:13:14 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4

Il 13/05/2013 23:04, Anthony Liguori ha scritto:
> We should leave the --disable-qom-casts present for 1.5 but I'd like
> to discuss reverting it for 1.6.  I'll send patches once 1.6 opens up.

I disagree, the cost is small but still provably nonzero.

We should only remove it once interfaces start to be more pervasive (it
would be nice for example to replace the RTC's #ifdef TARGET_I386 with
an interface).


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