[Bug tree-optimization/51117] [4.7 regression] rev.181172 causes glibc build failure

[matz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51117

--- Comment #9 from Michael Matz <matz at gcc dot gnu.org> 2011-12-13 13:59:42 
UTC ---
Author: matz
Date: Tue Dec 13 13:59:35 2011
New Revision: 182283

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182283
Log:
    PR tree-optimization/51117
    * tree-eh.c (sink_clobbers): New function.
    (execute_lower_eh_dispatch): Call it for BBs ending with
    internally throwing RESX.
    * cfgexpand.c (add_scope_conflicts_1): Add all conflicts only
    at the first real instruction.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgexpand.c
    trunk/gcc/tree-eh.c