[Bug rtl-optimization/49912] [4.7 Regression] ICE from -freorder-blocks-and-partition : verify_flow_info failed

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49912

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-26 
20:50:32 UTC ---
Author: jakub
Date: Sat Nov 26 20:50:28 2011
New Revision: 181743

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181743
Log:
    PR rtl-optimization/49912
    * cfgrtl.c (rtl_verify_flow_info_1): Ignore also EDGE_PRESERVE bit
    when counting n_branch.

    * g++.dg/other/pr49912.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/other/pr49912.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgrtl.c
    trunk/gcc/testsuite/ChangeLog