[Bug c++/49528] [4.6/4.7 regression] g++ fails to destroy temporary object when subobject is used to initialize a reference

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49528

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-26 
14:00:37 UTC ---
Author: jason
Date: Sun Jun 26 14:00:33 2011
New Revision: 175409

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175409
Log:
    PR c++/49528
    * semantics.c (potential_constant_expression_1): A TARGET_EXPR
    with a cleanup isn't constant.
    (cxx_eval_constant_expression): Likewise.
    * init.c (expand_default_init): Use maybe_constant_init.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-cleanup.C
    trunk/gcc/testsuite/g++.dg/init/ref19.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/cp/semantics.c
    trunk/gcc/testsuite/ChangeLog