[Bug debug/48866] gcc hangs when -g is set

[aoliva at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48866

--- Comment #13 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2012-06-13 
20:42:00 UTC ---
Author: aoliva
Date: Wed Jun 13 20:41:55 2012
New Revision: 188527

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188527
Log:
PR debug/52983
PR debug/48866
* dce.c (word_dce_process_block): Insert debug temps only if the
insn is not marked.
(dce_process_block): Likewise, and if debug.used is not empty,
and only after iterating over all DEFs that might mark the insn.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dce.c