[Bug rtl-optimization/25799] [4.2 Regression] cc1 stalled with -O1 -fmodulo-sched

[zadeck at gcc dot gnu dot org]

------- Comment #6 from zadeck at gcc dot gnu dot org  2006-01-20 01:24 -------
Subject: Bug 25799

Author: zadeck
Date: Fri Jan 20 01:24:00 2006
New Revision: 110007

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110007
Log:
2005-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

        PR rtl-optimization/25799 
        * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
        Corrected confluence operator to remove bits from op2 before oring
        with op1 rather than removing bits from op1.
        * (df_ru_transfer_function): Corrected test on wrong bitmap which
        caused infinite loop.  Both of these problems were introduced in
        the dataflow rewrite.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/df-problems.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25799