[Bug lto/41808] error: non-trivial conversion at assignment

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

------- Comment #6 from rguenth at gcc dot gnu dot org  2009-10-28 14:48 -------
Subject: Bug 41808

Author: rguenth
Date: Wed Oct 28 14:48:34 2009
New Revision: 153671

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153671
Log:
2009-10-28  Richard Guenther  <rguenther@suse.de>

        PR lto/41808
        PR lto/41839
        * tree-ssa.c (useless_type_conversion_p): Do not treat
        conversions to pointers to incomplete types as useless.
        * gimple.c (gimple_types_compatible_p): Compare struct tags,
        not typedef names.

        * gcc.dg/lto/20091027-1_0.c: New testcase.
        * gcc.dg/lto/20091027-1_1.c: Likewise.
        * g++.dg/lto/20091026-1_0.C: Likewise.
        * g++.dg/lto/20091026-1_1.C: Likewise.
        * g++.dg/lto/20091026-1_a.h: Likewise.

Added:
    trunk/gcc/testsuite/g++.dg/lto/20091026-1_0.C
    trunk/gcc/testsuite/g++.dg/lto/20091026-1_1.C
    trunk/gcc/testsuite/g++.dg/lto/20091026-1_a.h
    trunk/gcc/testsuite/gcc.dg/lto/20091027-1_0.c
    trunk/gcc/testsuite/gcc.dg/lto/20091027-1_1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41808