[Bug middle-end/41883] [4.5 Regression] ICE from '-O -fprofile-arcs -fsched2-use-superblocks -ftree-vrp -fschedule-insns2 -freorder-blocks'

[rth at gcc dot gnu dot org]

------- Comment #6 from rth at gcc dot gnu dot org  2010-01-06 18:34 -------
Subject: Bug 41883

Author: rth
Date: Wed Jan  6 18:34:31 2010
New Revision: 155680

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155680
Log:
        PR middle-end/41883
        * haifa-sched.c (add_to_note_list): Merge into ...
        (concat_note_lists): ... here, and ...
        (unlink_other_notes, rm_other_notes): Merge into...
        (remove_notes): ... here.  Create REG_SAVE_NOTEs for
        NOTE_INSN_EPILOGUE_BEG.

Added:
    trunk/gcc/testsuite/gcc.dg/pr42396.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/haifa-sched.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41883