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From: Paolo Bonzini <pbonzini@redhat.com>
To: Alexander Graf <agraf@suse.de>
Cc: peter.maydell@linaro.org, qemu-devel@nongnu.org, kraxel@redhat.com
Subject: Re: [Qemu-devel] [PATCH v2 1.3] build: compile translate.o with -fno-gcse option
Date: Tue, 27 Nov 2012 17:30:10 +0100	[thread overview]
Message-ID: <50B4EA92.60805@redhat.com> (raw)
In-Reply-To: <50B4E924.109@suse.de>

Il 27/11/2012 17:24, Alexander Graf ha scritto:
>>
>> +# Workaround for http://gcc.gnu.org/PR55489.  Happens with -fPIE/-fPIC
>> +# and large functions that use global variables.  The bug is in all
>> +# releases of GCC, but it became particularly acute in 4.7.x.  We
>> +# should be able to delete this at the end of 2013.
> 
> Can we add a version check for gcc here?

I don't think it is useful unless somebody finds that the patch gives
substantially worse TCG performance.

Paolo

  reply	other threads:[~2012-11-27 17:27 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-27 16:21 [Qemu-devel] [PATCH v2 1.3] build: compile translate.o with -fno-gcse option Paolo Bonzini
2012-11-27 16:24 ` Alexander Graf
2012-11-27 16:30   ` Paolo Bonzini [this message]
2012-11-27 18:17     ` Stefan Weil
2012-11-28  7:29       ` Paolo Bonzini
2012-11-28  2:01 ` 陳韋任 (Wei-Ren Chen)
2012-11-28  2:34   ` Wenchao Xia
2012-11-28 10:47 ` Andreas Färber

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