Gentoo Archives: gentoo-amd64

From: Frank Peters <frank.peters@×××××××.net>
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] Re: Status of Gcc-5.1.0?
Date: Sat, 23 May 2015 16:48:14
Message-Id: 20150523124802.6bd085304b87689bdcb13b4c@comcast.net
In Reply to: [gentoo-amd64] Re: Status of Gcc-5.1.0? by Martin Vaeth
1 On Sat, 23 May 2015 15:47:04 +0000 (UTC)
2 Martin Vaeth <martin@×××××.de> wrote:
3
4 >
5 > My experience is quite the opposite: With graphite, I had
6 > many random crashes (and seldom also unexplainable compiler
7 > errors which vanish without graphite).
8 >
9
10 My whole system has been compiled with graphite since its introduction
11 and I've never seen any problems.
12
13 What gcc flags are you using to enable graphite?
14
15 Usually, -floop-interchange, -floop-strip-mine, and -floop-block are
16 enough.
17
18 One can go further with -ftree-loop-distribution and -ftree-vectorize
19 and maybe even others. AFAIK these extra graphite options may cause
20 problems.
21
22 Regarding LTO, I experienced a severe problem with ghostscipt due to
23 what I later traced to LTO:
24
25 http://bugs.ghostscript.com/show_bug.cgi?id=691768
26
27 Ever since that time I disabled LTO completely.
28
29 Frank Peters

Replies

Subject Author
Re: [gentoo-amd64] Re: Status of Gcc-5.1.0? Barry Schwartz <chemoelectric@×××××××××××××.org>
[gentoo-amd64] Re: Status of Gcc-5.1.0? Martin Vaeth <martin@×××××.de>