[Bug rtl-optimization/34171] [4.3 Regression] Segfault in df_chain_remove_problem with -O3 on alpha

["spark at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #18 from spark at gcc dot gnu dot org  2007-11-30 17:02 -------
Subject: Bug 34171

Author: spark
Date: Fri Nov 30 17:02:43 2007
New Revision: 130539

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130539
Log:
gcc/testsuite/ChangeLog:

2007-11-30  Martin Michlmayr <tbm@cyrius.com>

        PR rtl-optimization/34171
        * gcc.dg/pr34171.c: New testcase.

gcc/ChangeLog:

2007-11-30  Seongbae Park <seongbae.park@gmail.com>

        PR rtl-optimization/34171
        * cfgrtl.c (update_bb_for_insn_chain): New function,
        refactored from update_bb_for_insn.
        (update_bb_for_insn): Call update_bb_for_insn.
        (rtl_merge_blocks, try_redirect_by_replacing_jump):
        Replace a loop with update_bb_for_insn_chain call.
        (cfg_layout_merge_blocks): Add a call to
        update_bb_for_insn_chain. Replace the for loop
        with a call to update_bb_for_insn_chain.


Added:
    trunk/gcc/testsuite/gcc.dg/pr34171.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgrtl.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34171