[Bug tree-optimization/43879] -fipa-pta causes various miscompilations

[rguenth at gcc dot gnu dot org]

------- Comment #30 from rguenth at gcc dot gnu dot org  2010-05-04 13:12 -------
Subject: Bug 43879

Author: rguenth
Date: Tue May  4 13:12:02 2010
New Revision: 159026

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159026
Log:
2010-05-04  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43879
        * tree-ssa-structalias.c (alias_get_name): Use
        DECL_ASSEMBLER_NAME if available.
        (create_function_info_for): Return the varinfo node.
        (ipa_pta_execute): Associate same-body aliases and extra names
        with their origin nodes varinfo.  Dump DECL_ASSEMBLER_NAME.

        * g++.dg/torture/pr43879-1_0.C: New testcase.
        * g++.dg/torture/pr43879-1_1.C: Likewise.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr43879-1_0.C
    trunk/gcc/testsuite/g++.dg/torture/pr43879-1_1.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-structalias.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43879