Re: Re: Status of Gcc-5.1.0?

On Sat, 23 May 2015 15:47:04 +0000 (UTC)
Martin Vaeth <[email protected]> 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