r172077 - in /branches/gcc-4_5-branch/gcc: Chan...

[abel@gcc.gnu.org]

Author: abel
Date: Thu Apr  7 06:50:08 2011
New Revision: 172077

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=172077
Log:
        Backport from mainline
        2010-10-14  Andrey Belevantsev  <abel@ispras.ru>

        PR rtl-optimization/45570
        * sel-sched-ir.c (cfg_preds_1): When walking out of the region,
        assert that we are pipelining outer loops.  Allow returning
        zero predecessors.


Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr45570.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/sel-sched-ir.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog