[Bug rtl-optimization/27761] combine miscompiles

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2006-12-12 15:03 -------
Subject: Bug 27761

Author: jakub
Date: Tue Dec 12 15:03:39 2006
New Revision: 119785

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=119785
Log:
        PR rtl-optimization/27761
        * combine.c (try_combine): Don't create a useless garbage SET
        if PATTERN (i2) is a PARALLEL.  If added_sets_1, save
        PATTERN (i1) resp. SET from i1src to i1dest in i1pat
        and use it to prevent accidental modification of i1src.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27761