[Bug middle-end/51998] compiler hangs on self-recursive alias attribute

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51998

--- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> 2012-02-02 
13:29:34 UTC ---
Author: hubicka
Date: Thu Feb  2 13:29:31 2012
New Revision: 183836

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183836
Log:

    PR middle-end/51998
    * cgraphunit.c (cgraph_analyze_function): Break cyclic aliases.
    * varpool.c (varpool_analyze_pending_decls): Likewise.

    * testsuite/gcc.dg/alias-12.c: New testcase.
    * testsuite/gcc.dg/alias-13.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/alias-12.c
    trunk/gcc/testsuite/gcc.dg/alias-13.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cgraphunit.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/varpool.c