[Bug tree-optimization/55191] [4.8 Regression] ICE in compute_antic at tree-ssa-pre.c:2511

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55191



--- Comment #7 from Steven Bosscher <steven at gcc dot gnu.org> 2012-11-08 
21:47:54 UTC ---

Author: steven

Date: Thu Nov  8 21:47:50 2012

New Revision: 193341



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193341

Log:

gcc/

    PR tree-optimization/55191

    * cfganal.c (connect_infinite_loops_to_exit): Call dfs_deadend here.

    (flow_dfs_compute_reverse_execute): Don't call it here.



testsuite/

    PR tree-optimization/55191

    * gcc.dg/pr55191.c: New test.







Added:

    trunk/gcc/testsuite/gcc.dg/pr55191.c

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/cfganal.c

    trunk/gcc/testsuite/ChangeLog