[Bug tree-optimization/44656] VN should value-replace operands during alias-oracle walk

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-07-04 10:53 -------
Subject: Bug 44656

Author: rguenth
Date: Sun Jul  4 10:52:43 2010
New Revision: 161798

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161798
Log:
2010-07-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44656
        * tree-ssa-sccvn.c (vn_reference_lookup_3): Try disambiguation
        again after value-replacing in the defintions lhs.

        * gcc.dg/tree-ssa/loadpre6.c: Remove XFAIL.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loadpre6.c
    trunk/gcc/tree-ssa-sccvn.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44656