[Bug bootstrap/48000] New: [4.6 Regression] LTO bootstrap failed with bootstrap-profiled

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48000

           Summary: [4.6 Regression] LTO bootstrap failed with
                    bootstrap-profiled
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com
                CC: jakub@redhat.com


On Linux/x86-64, revision 170699 failed to LTO bootstrap
with bootstrap-profiled:

http://gcc.gnu.org/ml/gcc-regression/2011-03/msg00030.html

../../src-trunk/gcc/reginfo.c: In function 'init_reg_modes_target':
../../src-trunk/gcc/reginfo.c:586:1: internal compiler error: in
dfs_enumerate_from, at cfganal.c:1209
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Revision 170697 is OK. It is caused by revision 170699:

http://gcc.gnu.org/ml/gcc-cvs/2011-03/msg00120.html