[Bug rtl-optimization/40101] [4.5 Regression] 200.sixtrack ICEs in get_seqno_by_preds, at sel-sched-ir.c:3752

[abel at gcc dot gnu dot org]

------- Comment #6 from abel at gcc dot gnu dot org  2010-08-24 08:51 -------
Subject: Bug 40101

Author: abel
Date: Tue Aug 24 08:50:50 2010
New Revision: 163498

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163498
Log:
Backport from mainline:
        PR rtl-optimization/40101
         * sel-sched-ir.c (get_seqno_by_preds): Allow returning negative
         seqno.  Adjust comment.
         * sel-sched.c (find_seqno_for_bookkeeping): Assert that when
         inserting bookkeeping before a jump, the jump is not scheduled.
         When no positive seqno found, provide a value.  Add comment.


Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/sel-sched-ir.c
    branches/gcc-4_4-branch/gcc/sel-sched.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40101