[Bug c++/49107] [C++0x][4.7 Regression] incomplete type regression with std::pair

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49107

--- Comment #19 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-08 
21:35:05 UTC ---
Author: jason
Date: Wed Jun  8 21:35:02 2011
New Revision: 174820

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174820
Log:
    PR c++/49107
    * cp-tree.def (DEFERRED_NOEXCEPT): New.
    * cp-tree.h (struct tree_deferred_noexcept): New.
    (DEFERRED_NOEXCEPT_PATTERN, DEFERRED_NOEXCEPT_ARGS): New.
    (DEFERRED_NOEXCEPT_SPEC_P): New.
    (enum cp_tree_node_structure_enum): Add TS_CP_DEFERRED_NOEXCEPT.
    (union lang_tree_node): Add tree_deferred_noexcept.
    (maybe_instantiate_noexcept): Declare.
    * cp-objcp-common.c (cp_tree_size): Handle DEFERRED_NOEXCEPT.
    * error.c (dump_exception_spec): Likewise.
    * cxx-pretty-print.c (pp_cxx_exception_specification): Likewise.
    * ptree.c (cxx_print_xnode): Likewise.
    * tree.c (cp_tree_equal): Likewise.
    * decl.c (cp_tree_node_structure): Likewise.
    (duplicate_decls): Call maybe_instantiate_noexcept.
    * except.c (build_noexcept_spec): Handle DEFERRED_NOEXCEPT.
    (nothrow_spec_p, type_noexcept_p, type_throw_all_p): Check
    DEFERRED_NOEXCEPT_SPEC_P.
    * typeck2.c (merge_exception_specifiers): Likewise.
    * decl2.c (mark_used): Call maybe_instantiate_noexcept.
    * method.c (process_subob_fn, defaulted_late_check): Likewise.
    * pt.c (tsubst_exception_specification): Add defer_ok parm.
    Build DEFERRED_NOEXCEPT.
    (maybe_instantiate_noexcept): New.
    (tsubst, regenerate_decl_from_template, instantiate_decl): Adjust.
    * search.c (check_final_overrider): Call maybe_instantiate_noexcept.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/noexcept11.C
    trunk/gcc/testsuite/g++.dg/cpp0x/noexcept12.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-objcp-common.c
    trunk/gcc/cp/cp-tree.def
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/cxx-pretty-print.c
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/decl2.c
    trunk/gcc/cp/error.c
    trunk/gcc/cp/except.c
    trunk/gcc/cp/method.c
    trunk/gcc/cp/pt.c
    trunk/gcc/cp/ptree.c
    trunk/gcc/cp/search.c
    trunk/gcc/cp/tree.c
    trunk/gcc/cp/typeck2.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/cpp0x/sfinae11.C