[erlang-bugs] gcc bug triggered by compiling R14B02 (not an erlang bug per se)

Matthias Lang <>
Thu Apr 28 07:43:49 CEST 2011


Hi,

> I'm unable to reproduce this with either gcc-4.5.2 or gcc-4.5-20110421,
> both vanilla unpatched FSF sources, on an x86-64 box running Fedora 13.
> Looks like a Debian bug to me.

Thanks, agree.

I glanced at Debian's patches, but they're 200k lines long. Did not
feel like digging through that to try and understand what they've
done. Feels like "report and forget" time.

Anything more than the rest of this mail I should send to Debian?

--------------------

gcc -v:  gcc version 4.5.2 (Debian 4.5.2-11) 

uname -a: Linux contorpis.corelatus.se 2.6.38-2-amd64 #1 SMP Thu Apr 7 04:28:07 UTC 2011 x86_64 GNU/Linux

how to reproduce:

   cd /tmp
   wget www.corelatus.se/~matthias/preprocessed.i
   gcc -O3 -c preprocessed.i

here's what it looks like on my machine:

  >   gcc -O3 -c preprocessed.i
  beam/dist.c: In function ‘erts_do_net_exits’:
  beam/dist.c:501:1: internal compiler error: in dfs_enumerate_from, at cfganal.c:1207
  Please submit a full bug report,
  with preprocessed source if appropriate.
  See <file:///usr/share/doc/gcc-4.5/README.Bugs> for instructions.

MD5: 616c74a08f57cb9263a9af62d845fb19  preprocessed.i

Problem does not occur with "gcc version 4.4.5 (Debian 4.4.5-15)"

Can't find a similar problem at bugs.debian.org.
Similar problem: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48000

Matt


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