[Bug c++/44780] [4.6 regression] Bogus set-but-not-used variable warning

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

------- Comment #3 from jakub at gcc dot gnu dot org  2010-07-02 20:22 -------
Subject: Bug 44780

Author: jakub
Date: Fri Jul  2 20:22:32 2010
New Revision: 161742

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161742
Log:
        PR c++/44780
        * typeck.c (convert_for_assignment): When converting a convertible
        vector type or objc++ types, call mark_rvalue_use.
        * typeck2.c (build_m_component_ref): Use return values from
        mark_rvalue_use or mark_lvalue_use.
        * class.c (build_base_path): Likewise.
        * call.c (build_conditional_expr): Likewise.

        * c-c++-common/Wunused-var-12.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/Wunused-var-12.c
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/class.c
    trunk/gcc/cp/typeck.c
    trunk/gcc/cp/typeck2.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44780