From: Frank Peters <frank.peters@comcast.net>
To: gentoo-amd64@lists.gentoo.org
Subject: Re: [gentoo-amd64] Re: Status of Gcc-5.1.0?
Date: Sat, 23 May 2015 12:48:02 -0400 [thread overview]
Message-ID: <20150523124802.6bd085304b87689bdcb13b4c@comcast.net> (raw)
In-Reply-To: <slrnmm187o.5a4.martin@lounge.imp.fu-berlin.de>
On Sat, 23 May 2015 15:47:04 +0000 (UTC)
Martin Vaeth <martin@mvath.de> wrote:
>
> My experience is quite the opposite: With graphite, I had
> many random crashes (and seldom also unexplainable compiler
> errors which vanish without graphite).
>
My whole system has been compiled with graphite since its introduction
and I've never seen any problems.
What gcc flags are you using to enable graphite?
Usually, -floop-interchange, -floop-strip-mine, and -floop-block are
enough.
One can go further with -ftree-loop-distribution and -ftree-vectorize
and maybe even others. AFAIK these extra graphite options may cause
problems.
Regarding LTO, I experienced a severe problem with ghostscipt due to
what I later traced to LTO:
http://bugs.ghostscript.com/show_bug.cgi?id=691768
Ever since that time I disabled LTO completely.
Frank Peters
next prev parent reply other threads:[~2015-05-23 16:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-20 18:55 [gentoo-amd64] Status of Gcc-5.1.0? Frank Peters
2015-05-22 18:35 ` Stefan G. Weichinger
2015-05-22 21:41 ` Frank Peters
2015-05-23 15:47 ` [gentoo-amd64] " Martin Vaeth
2015-05-23 16:48 ` Frank Peters [this message]
2015-05-23 20:36 ` Barry Schwartz
2015-05-25 12:29 ` Martin Vaeth
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